Since 1980

With over 30 Years of experience supporting clients from a range of industries RFA has developed into a multi-service company - providing realistic pricing with a prompt and efficient service on all works ranging from small to large commercial projects.

Our highly qualified engineers are supported by extensive in-house design facilities and a team of experienced project managers; together we are committed to accomplish every aspect of a contract to initial design to final completion.

Working with You

Safety and quality as standard

Establishing and maintaining excellent customer relations is very important to us; taking a collaborative approach and keeping you informed ensures maximum satisfaction from start to finish.

The Big Picture

Considering every step

Highly organised and equipped to deal with the dynamic changes of commercial and industrial works- we plan for the best but pride ourselves when creative solutions are needed.


In Association with Our Partners

Our Process


Discovering and understanding solutions to potential issues before they develop into costly problems or delays is paramount to the overall success of any Project we manage.


Our own expertise and support of industry accreditations enables us to provide the most effective and functional systems or works possible to achieve the desired final result.


We are equipped with in-house design facilities supported by experienced project managers - offering various levels of design packages to suit your budget and complexity.


With access to a multitude of suppliers (including authorised distributors of the UK's leading manufactures) we supply all necessary materials to complete the works including any consumables where applicable.


Our skilled work force of electricians, engineers and technicians provide a high standard of workmanship - ensuring utmost safety while maintaining a strict adherence to program schedules.


Assuring that all systems and components of a full or part-installation are designed, installed, tested, operated and maintained according to the operational requirements of the owner or final client - complete with modular certification.

Our Experience

Over the years we have worked in a wide range of industries and sectors giving us significant experience.

Aerospace & Shipbuilding

Chemicals & Pharmaceuticals

Food & Drink

Health & Care

Historical & Listed

Industrial & Commercial

IT & Communications

MOD & Local Authorities

Petrochemical & Utilities

Public House & Hotel

Rural & Agriculture

Warehouse & Manufacturing


As a significant proportion of our services are repeat business customer satisfaction is very important to us.

"Congratulations for the sucessful works carried out, our client is very happy, as are we. Well done to all concerned." Abdul, BMW Swindon

"He (The engineer) gives excellent service, always friendly, helpful and gives us lots of up to date information about the system." Hollie, Mole Valley Farmers Ltd

"Thanks again for completing the works required in such a timely and professional manner, your electrician was early (unheard of for a contractor) a fast worker and courteous." Chris, Burlington Mansions


We invite you to discover below all our news - this is where we will be bringing you our latest updates and developments.

Electrical Contracting

Well known in the industry for our extensive experience in dealing with even the most complex and challenging of site conditions, time scales and budgets, we offer a comprehensive range of electrical service methods throughout the UK - providing cost effective design, procurement, supply, installation, commissioning and maintenance for a wide variety of electrical services in the commercial, domestic and industrial sectors.

Carried out by our highly skilled electricians and electrical/mechanical engineers, all works are fully tested and inspected to ensure safety standards are met - we are both NICEIC Approved Contractors and Safe Contractor registered - this ensures that all contracts will be undertaken with the very latest working practices, safety legislation's and technical standards.



Fixed installation testing or fixed wire testing is undertaken in accordance with the 17th Edition IEE Wiring Regulations and Guidance Note 3, and to the standards as set out in BS7671:2008 (including the first amendment, effective from January 1st 2012).
In the UK, domestic and small commercial or public installations usually have single-phase supplies at 230V (nominal standard). The main distribution boards in these installations are called consumer units (CUs), though they may be known as fuse boxes; older consumer units used fuses until the advent of mini-circuit breakers (MCBs).
In an electric power system, switchgear is the combination of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Switchgear is used both to de-energize equipment to allow work to be done and to clear faults downstream. This type of equipment is important because it is directly linked to the reliability of the electricity supply.
An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails. A UPS differs from an auxiliary or emergency power system or standby generator in that it will provide near-instantaneous protection from input power interruptions, by supplying energy stored in batteries or a flywheel. The on-battery runtime of most uninterruptible power sources is relatively short (only a few minutes) but sufficient to start a standby power source or properly shut down the protected equipment.
A surge protector (or surge suppressor) is an appliance designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or by shorting to ground any unwanted voltages above a safe threshold. This article primarily discusses specifications and components relevant to the type of protector that diverts (shorts) a voltage spike to ground; however, there is some coverage of other methods.
Emergency power systems are a type of system, which may include lighting, generators, fuel cells and other apparatus, to provide backup power resources in a crisis or when regular systems fail. They find uses in a wide variety of settings from residential homes to hospitals, scientific laboratories, data centres and telecommunication equipment. Emergency power systems can rely on generators, deep cycle batteries, and fly-wheel energy storage or hydrogen fuel cells.
Lighting fixtures come in a wide variety of styles for various functions. The most important functions are as a holder for the light source, to provide directed light and to avoid visual glare. Some are very plain and functional, while some are pieces of art in themselves. Nearly any material can be used, so long as it can tolerate the excess heat and is in keeping with safety codes.
A local area network (LAN) is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building using network media. The defining characteristics of LANs, in contrast to wide area networks (WANs), include their usually higher data-transfer rates, smaller geographic area, and lack of a need for leased telecommunication lines.
Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. The light forms an electromagnetic carrier wave that is modulated to carry information. First developed in the 1970s, fiber-optic communication systems have revolutionized the telecommunications industry and have played a major role in the advent of the Information Age. Because of its advantages over electrical transmission, optical fibers have largely replaced copper wire communications in core networks in the developed world.
Building automation describes the advanced functionality provided by the control system of a building. A building automation system (BAS) is an example of a distributed control system. The control system is a computerized, intelligent network of electronic devices designed to monitor and control the mechanical, electronics, and lighting systems in a building.

BAS core functionality keeps the building climate within a specified range, provides lighting based on an occupancy schedule, monitors system performance and device failures, and provides malfunction alarms (via email and/or text notifications) to building engineering/maintenance staff. The BAS functionality reduces building energy and maintenance costs when compared to a non-controlled building. A building controlled by a BAS is often referred to as an intelligent building or a smart home.
We offer a full range of temporary services which can be tailored to meet your site requirements. Some of the temporary services we offer are: power distribution, temporary lighting, evacuation and security alarms, temporary heating, data point, temporary plumbing services, test certificates and PAT (portable appliance testing), generator hire plus any other temporary site requirements you may have. If you have any temporary requirements which do not feature on our product and services then please contact us for assistance.
A small PV system is capable of providing enough AC electricity to power a single home, or even an isolated device in the form of AC or DC electric. For example, military and civilian Earth observation satellites, street lights, construction and traffic signs, electric cars, solar powered tents, and electric aircraft may contain integrated photovoltaic systems to provide a primary or auxiliary power source in the form of AC or DC power, depending on the design and power demands.
Structured cabling design and installation is governed by a set of standards that specify wiring data centres, offices, and apartment buildings for data or voice communications using various kinds of cable, most commonly category 5e (CAT-5e), category 6 (CAT-6), and fibre optic cabling and modular connectors. These standards define how to lay the cabling in various topologies in order to meet the needs of the customer, typically using a central patch panel (which is normally 19 inch rack-mounted), from where each modular connection can be used as needed. Each outlet is then patched into a network switch (normally also rack-mounted) for network use or into an IP or PBX (private branch exchange) telephone system patch panel.
Cable faults are damage to cables which effect a resistance in the cable. If allowed to persist, this can lead to a voltage breakdown. There are different types of cable faults, which must first be classified before they can be located. The insulation of the cable plays a significant role in this. While paper-impregnated cables are particularly susceptible to external chemical and thermal influences, in high-voltage PE and XLPE cables the polyethylene insulation of the conductor is affected, leading to partial breakdowns and cracks that “eat away” the insulation.
Portable appliance testing (commonly known as "PAT", "PAT Inspection" or "PAT Testing") is a process in the United Kingdom, the Republic of Ireland, New Zealand and Australia by which electrical appliances are routinely checked for safety. The correct term for the whole process is "in-service inspection & testing of electrical equipment".
Electrical installations are treated to a thorough inspection and testing regime by our skilled and qualified operatives, and via careful liaison and free site consultations we are able to keep any disruption to the electrical installation to a minimum.

In the past, this work has been referred to as hard wire testing, periodic inspections, or even 5 yearly inspection and testing (as most commercial installations require to be tested at 5 yearly intervals). However, there are exceptions; depending upon the environment and installation, the maximum period between inspection and testing can be as little as 1 year or as much as 10 years. Our management will advise the most cost-effective solution for our clients' regime whilst ensuring statutory compliance is met with transparency of process and reference to the relevant statutory documentation throughout.

Fire Protection

We are NSI Fire Gold and BAFE certified for design, installation, commissioning, hand-over, verification and maintenance of fire detection and alarm systems - all in accordance with the requirements of BS5839-1:2013 + A2:2008.

We offer a extensive range of fire prevention/protection services - we can select the correct method of detection most suitable for your premises.



An automatic fire alarm system is designed to detect the unwanted presence of fire by monitoring environmental changes associated with combustion. In general, a fire alarm system is classified as either automatically actuated, manually actuated, or both. Automatic fire alarm systems are intended to notify the building occupants to evacuate in the event of a fire or other emergency, report the event to an off-premises location in order to summon emergency services, and to prepare the structure and associated systems to control the spread of fire and smoke.
Addressable Fire Alarm Control Panels employ one or more Signalling Line Circuits, slang - usually referred to as loops or SLC loops - ranging between one and thirty. Depending on the protocol used, a Signalling Line Circuit can monitor and control several hundred devices. Some protocols permit any mix of detectors and input/output modules, while other protocols have 50% of channel capacity restricted to detectors/sensors and 50% restricted to input/output modules. Each SLC polls the devices connected, which can number from a few devices to several hundred, depending on the manufacturer. Large systems may have multiple Signalling Line Circuits.
Radio Fire Alarm Systems are designed to help fire system installers and fire system engineers remove the need for hard wire fire systems and are simple to install. Packed with features that leave most "hard wired" conventional systems behind, these Radio Fire Alarm Systems offer true addressable information with almost total user control over set-up and operation.

Radio Fire Alarm Systems are an answer to fire protection of major construction sites where wired options may pose a significant problem due to the difficult and challenging installation environment. Radio Alarm Fire Systems are an ideal solution; as control panels, call points, beacons and sounders can be quickly and inexpensively moved as each construction and fit out phase is completed. There is no need to install and continually move expensive fire-rated cable.
An aspirating smoke detector (ASD), consists of a central detection unit which draws air through a network of pipes to detect smoke. The sampling chamber is based on a nephelometer that detects the presence of smoke particles suspended in air by detecting the light scattered by them in the chamber.

In most cases aspirating smoke detectors require a fan unit to draw in a sample of air from the protected area through its network of pipes, such as is the case for Wagner, Safe Fire Detection's ProSeries and Xtralis ASD systems.

Aspirating smoke detectors can detect smoke before it is visible to the human eye.

ASD design corrects shortcomings of conventional smoke detectors by using sampling pipe with multiple holes. The air samples are captured and filtered, removing any contaminants or dust to avoid false alarms and then processed by a centralized, highly sensitive laser detection unit. If smoke is detected, the systems alarm is triggered, and signals then are processed through centralized monitoring stations within a few seconds.
Redcare Classic is a grade 4 system that offers the most secure form of alarm signalling available. The service provides continuous monitoring of the BT telephone line that links a professionally installed alarm system on a customer’s premises to an Alarm Receiving Centre (ARC). The result is continuous protection, every second of the day, every day of the year.

Unlike other alarm signalling services, Redcare both alerts the ARC when it detects a line cut AND provides encryption to prevent the substitution of equipment or "spoofing" (emulation) of line conditions. This is why Redcare is the most secure system of its kind.
Gas leak detection is the process of identifying potentially hazardous gas leaks by means of various sensors. These sensors usually employ an audible alarm to alert people when a dangerous gas has been detected. Common sensors used today include Infrared Point Sensor, Ultrasonic gas detectors, electrochemical gas detectors, and Semiconductor Sensors. More recently, infrared imaging sensors have come into use. All of these sensors are used for a wide range of applications, and can be found in industrial plants, refineries, wastewater treatment facilities, vehicles, and around the home.
A fire sprinkler system is an active fire protection measure, consisting of a water supply system, providing adequate pressure and flow-rate to a water distribution piping system, onto which fire sprinklers are connected. Although historically only used in factories and large commercial buildings, systems for home and small building are now available at a cost-effective price. Fire sprinkler systems are extensively used worldwide, with over 40 million sprinkler heads fitted each year. In buildings completely protected by fire sprinkler systems, over 99% of fires were controlled by fire sprinklers alone.

Renewed interest in and support for sprinkler systems in the UK, largely as a result of effective lobbying by the National Fire Sprinkler Network, the European Fire Sprinkler Network and the British Automatic Fire Sprinkler Association has resulted in sprinkler systems being more widely installed. In schools, for example, the government has issued recommendations through Building Bulletin 100 that most new schools should be constructed with sprinkler protection. In 2011 Wales became the first country in the world where sprinklers are compulsory in all new homes.

A fire hydrant is an active fire protection measure, and a source of water provided in most urban, suburban and rural areas with municipal water service to enable firefighters to tap into the municipal water supply to assist in extinguishing a fire. Buildings near a hydrant may qualify for an insurance discount since firefighters should be able to more rapidly extinguish a fire on the insured property.
Public Address Voice Alarm Systems provide a safe working environment allowing information to be communicated to people at any time.

The broadcasting of announcements and ambient music in areas such as shopping centres, stadia, etc are some of the many uses a PAVA System offers. If an incident occurs the PAVA System can help in the safe and orderly evacuation of people from an area of danger.

Under BS5588 Public Address Voice Alarm Systems (VA) are recommended for all public buildings and multi-story buildings over four floors. Voice Alarm systems are the quickest way to evacuate the public & staff from a building. The broadcasting of announcements and ambient music in areas such as shopping centres, stadia, etc are some of the many uses a PAVA System offers. If an incident occurs the PAVA System can help in the safe and orderly evacuation of people from an area of danger.
Currently, the universal immediate response to the fire alarm sounding (in the UK) is to evacuate the building and call 999. While this simple response is certainly effective in maximising life safety, the potential for 'unwanted' alarms is high. Such a simple strategy causes personal frustration, business disruption and unnecessary calls to the Fire & Rescue Services (FRS) - but there are other, more sophisticated, responses to an alarm signal which can minimise the potential disruption while still providing effective life safety.
Today there are numerous types of Automatic Fire Suppression Systems. Systems are as diverse as the many applications. In general, however, Automatic Fire Suppression Systems fall into two categories: engineered and pre-engineered systems.

Engineered Fire Suppression Systems are design specific. Engineered systems are usually for larger installations where the system is designed for the particular application. Examples include marine and land vehicle applications, computer clean rooms, public and private buildings, industrial paint lines, dip tanks and electrical switch rooms. Engineered systems use a number of gaseous or solid agents. Many are specifically formulated. Some, such as 3M Novec 1230 Fire Protection Fluid, are stored as a liquid and discharged as a gas.

Pre-Engineered Fire Suppression Systems use pre-designed elements to eliminate the need for engineering work beyond the original product design. Typical industrial solutions use a simple wet or dry chemical agent, such as potassium carbonate or monoammonium phosphate (MAP), to protect spaces such as paint rooms and booths, storage areas and commercial kitchens. In Europe, a small number of residential designs have also emerged. These units often employ water mist with or without a surfactant additive, and target retrofit applications where the risk of fire or fire injury is high but where a conventional fire sprinkler system would be unacceptably expensive.

By definition, an automatic fire suppression system can operate without human intervention. To do so it must possess a means of detection, actuation and delivery.
A fire extinguisher, flame extinguisher, or simply an extinguisher, is an active fire protection device used to extinguish or control small fires, often in emergency situations. It is not intended for use on an out-of-control fire, such as one which has reached the ceiling, endangers the user (i.e., no escape route, smoke, explosion hazard, etc.), or otherwise requires the expertise of a fire department. Typically, a fire extinguisher consists of a hand-held cylindrical pressure vessel containing an agent which can be discharged to extinguish a fire.

Fire extinguishers, in all buildings other than houses, are generally required to be serviced and inspected by a Fire Protection service company at least annually. Some jurisdictions require more frequent service for fire extinguishers. The servicer places a tag on the extinguisher to indicate the type of service performed (annual inspection, recharge, new fire extinguisher) and when.
Regular servicing and maintenance of fire safety equipment will help to ensure maximum efficiency and life of your equipment helping you to save money on unnecessary repair or replacement of poorly kept components. By keeping your fire prevention and suppression systems operating efficiently, it will reduce the number of false alarms saving you not only money from disruption but also costs incurred by an emergency service who may charge for excessive call outs resulting from false alarms.

Civil Construction

From minor reinstatement works, new site enabling and infrastructure works to extensive re-modelling, we have the flexibility and resources to respond swiftly to clients' needs - our construction service experts provide you with an extensive range of pre-construction and construction-related services and solutions for projects of varying scope, budget, schedule and complexity.

Experienced as a principal or specialist contractor; in association with our partners we work to Construction Design and Management (CDM) regulation standards, ISO certification quality, environmental criteria and health and safety management systems - all in compliance with accredited industry trade bodies.



Earthworks are engineering works created through the moving or processing of parts of the earth's surface involving quantities of soil or unformed rock. The earth may be moved to another location and formed into a desired shape for a purpose. Much of earthworks involves machine excavation and fill or backfill.
A deep foundation is a type of foundation distinguished from shallow foundations by the depth they are embedded into the ground.

There are many reasons a geotechnical engineer would recommend a deep foundation over a shallow foundation, but some of the common reasons are very large design loads, a poor soil at shallow depth, or site constraints (like property lines). There are different terms used to describe different types of deep foundations including the pile (which is analogous to a pole), the pier (which is analogous to a column), drilled shafts, and caissons. Piles are generally driven into the ground in situ; other deep foundations are typically put in place using excavation and drilling. The naming conventions may vary between engineering disciplines and firms. Deep foundations can be made out of timber, steel, reinforced concrete and pre-stressed concrete.
Reinforced concrete is a composite material in which concrete's relatively low tensile strength and ductility are counteracted by the inclusion of reinforcement having higher tensile strength and/or ductility. The reinforcement is usually, though not necessarily, steel reinforcing bars (rebar) and is usually embedded passively in the concrete before it sets. Reinforcing schemes are generally designed to resist tensile stresses in particular regions of the concrete that might cause unacceptable cracking and/or structural failure. Modern reinforced concrete can contain varied reinforcing materials made of steel, polymers or alternate composite material in conjunction with rebar or not. Reinforced concrete may also be permanently stressed (in compression), so as to improve the behaviour of the final structure under working loads.
Masonry is commonly used for the walls of buildings, retaining walls and buildings. Brick and concrete block are the most common types of masonry in use in industrialized nations and may be either weight-bearing or a veneer. Concrete blocks, especially those with hollow cores, offer various possibilities in masonry construction. They generally provide great compressive strength, and are best suited to structures with light transverse loading when the cores remain unfilled. Filling some or all of the cores with concrete or concrete with steel reinforcement (typically rebar) offers much greater tensile and lateral strength to structures.
In the building trades, a joiner is a type of a carpenter that cuts and fits joints in wood without the use of nails, screws, or other metal fasteners. Joiners usually work in a workshop, because the formation of various joints usually requires non-portable machinery; in contrast, most other kinds of carpenter usually work on site. A "joiner" usually produces items such as interior and exterior doors, windows, stairs, tables, etc.
Dry lining is the technique for finishing internal surfaces that includes plasterboard that are fixed to a timber stud providing the opportunity to incorporate insulation within a stud, or using laminated plasterboard.

A dropped ceiling is often a secondary ceiling, hung below the main (structural) ceiling. It may also be referred to as a drop ceiling, T-bar ceiling, false ceiling, or suspended ceiling, and is a staple of modern construction and architecture. The area above the dropped ceiling is called the plenum space, as it is sometimes used for HVAC air return. The plenum space is also very commonly used to conceal piping, wiring, and/or ductwork.
Plaster is a building material used for coating walls and ceilings. Plaster starts as a dry powder similar to mortar or cement and like those materials it is mixed with water to form a paste which liberates heat and then hardens. Unlike mortar and cement, plaster remains quite soft after setting, and can be easily manipulated with metal tools or even sandpaper. These characteristics make plaster suitable for a finishing, rather than a load-bearing material.

Cement rendering is the application of a premixed layer of sand and cement to brick, cement, stone or mud brick. It is often textured, coloured or painted after application. It is generally used on exterior walls but can be used to feature an interior wall.

Depending on the 'look' required, rendering can be fine or coarse, textured or smooth, natural or coloured, pigmented or painted.

The cement rendering of brick, concrete and mud houses has been used for centuries to improve the appearance (and sometimes weather resistance) of exterior walls. It can be seen in different forms all over southern Europe. Different countries have their own style and traditional colours.
Our painting contractors work closely with our suppliers, whom themselves are experts in their field and we consult with the technical department before we undertake any task. Our suppliers carry a huge range of standard and specialised paintings and coatings and are more than happy to provide technical information.
In modern high-rise buildings, the exterior walls are often suspended from the concrete floor slabs. Examples include curtain walls and precast concrete walls. The façade can at times be required to have a fire-resistance rating, for instance, if two buildings are very close together, to lower the likelihood of fire spreading from one building to another.

In general, the facade systems that are suspended or attached to the precast concrete slabs will be made from aluminium (powder-coated or anodized) or stainless steel. In recent years more lavish materials such as titanium have sometimes been used, but due to their cost and susceptibility to panel edge staining these have not been popular.
Cladding is the application of one material over another to provide a skin or layer intended to control the infiltration of weather elements, or for aesthetic purposes. Cladding does not necessarily have to provide a waterproof condition but is instead a control element. This control element may only serve to safely direct water or wind in order to control run-off and prevent infiltration into the building structure. Cladding applied to windows is often referred to as window capping and is a very specialized field.
The characteristics of a roof are dependent upon the purpose of the building that it covers, the available roofing materials and the local traditions of construction and wider concepts of architectural design and practice and may also be governed by local or national legislation.

The basic shapes of roofs are flat, skillion, gabled, hipped, arched and domed. There are many variations on these types. Roofs constructed of flat sections that are sloped are referred to as pitched roofs (generally if the angle exceeds 10 degrees). Pitched roofs, including gabled, hipped and skillion roofs, make up the greatest number of domestic roofs. Some roofs follow organic shapes, either by architectural design or because a flexible material such as thatch has been used in the construction.
The mezzanine floor often projects itself from the walls and does not completely close the view of the ceiling from the floor immediately below. In short, a mezzanine floor and the floor below it share the same ceiling. Mezzanine floors are often located between the ground floor and the floor above, but it is not unusual to have mezzanine floors in the upper floors of a building.

The mezzanine is often used in shops and similar spaces for storage of tools or materials. The high roof of the shop is ideal for a mezzanine, and offices can be put either below or above it. Mezzanines are frequently used in industrial operations such as warehousing, distribution or manufacturing. These facilities have high ceilings, allowing unused space to be utilized within the vertical cube. Industrial mezzanine structures are typically either structural, roll formed, rack-supported, or shelf-supported, allowing high density storage within the mezzanine structure.
Basement Waterproofing refers to techniques used to prevent water from entering the basement of a house or other building. Effective below ground waterproofing will include both drainage and sealers.

Waterproofing is needed anytime a structure is built at ground level or below ground. Waterproofing and drainage considerations are especially needed in cases where ground water is likely to build up in the soil and raise the water table. This higher water table causes hydrostatic pressure to be exerted underneath basement floors and against basement walls. Hydrostatic pressure forces water in through cracks in foundation walls, through openings caused by expansion and contraction of the footing-foundation wall joint and up through floor cracks. Hydrostatic pressure can cause major structural damage to foundation walls and is likely to contribute to mould, decay and other moisture related problems.
A diamond drill is a rotary type of rock drill that cuts by producing a rotary motion rather than a percussive one. The diamond drill consists of a diamond-clad drill bit attached to a hollow shaft powered by pumped water.
A listed building may not be demolished, extended, or altered without special permission from the local planning authority, which typically consults the relevant central government agency, particularly for significant alterations to the more notable listed buildings. Exemption from secular listed building control is provided for some buildings in current use for worship, but only in cases where the relevant religious organisation operates its own equivalent permissions procedure. Owners of listed buildings are, in some circumstances, compelled to repair and maintain them and can face criminal prosecution if they fail to do so or if they perform unauthorised alterations. The listing procedure allows for buildings to be removed from the list if the listing is shown to be in error.
Residential soundproofing aims to decrease or eliminate the effects of exterior noise. The main focus of residential soundproofing in existing structures is the windows. Curtains can be used to damp sound either through use of heavy materials or through the use of air chambers known as honeycombs. Single-, double- and triple-honeycomb designs achieve relatively greater degrees of sound damping. The primary soundproofing limit of curtains is the lack of a seal at the edge of the curtain. Double-pane windows achieve somewhat greater sound damping than single-pane windows. Significant noise reduction can be achieved by installing a second interior window. In this case the exterior window remains in place while a slider or hung window is installed within the same wall openings.

Commercial businesses sometimes use soundproofing technology. Restaurants, schools, and health care facilities use architectural acoustics to reduce noise for their customers. Office buildings may try to make cubicle spaces less noisy for workers using the phone.
Tarmac (short for tarmacadam, or tar-penetration macadam) is a type of road surfacing material patented by Edgar Purnell Hooley in 1901. The term is also used, with varying degrees of correctness, for a variety of other materials, including tar-grouted macadam, bituminous surface treatments, and even modern asphalt concrete.
Resin bound paving is a mixture of aggregate stones and resin used to pave footpaths, driveways, etc. It's a kind of permeable paving solution. It's a flexible surfacing material, so it's resistant to cracking.

The system is mixed on site and cold applied, using a high quality clear resin binder to coat the aggregate particles prior to laying. Unlike other methods of resin based surfacing, where a thin layer of resin is applied to the surface and then the aggregate scattered on top (which can then become loose over time and is impermeable), resin and aggregates are thoroughly mixed together prior to laying - ensuring that the aggregate is completely coated and so providing a totally bound surface. As a result, a resin bound surface is more durable and requires less maintenance - it needs to sweep or power wash the paving at least twice a year, to avoid the build-up of detritus and prevent the growth of moss or algae.

Resin bound paving is a fully permeable paving solution which allows water to freely drain through the surface. Meeting the requirements of Sustainable urban drainage systems (SUDS) standards, this helps to prevent standing water and largely eliminates surface water runoff.
Shop fitting is the trade of fitting out retail and service shops and stores with equipment, fixtures and fittings. The trade applies to all kinds of outlets from small corner shops to hypermarkets. A shop fitter executes planning, designs shop layout and installs equipment and services. A shop fitting firm typically incorporates professional expertise in interior design, manufacturing of bespoke furniture, signage and fittings (with own or outsourced facilities) and purchasing of retail equipment.

A shop fitting cycle begins with a survey and measurement of available space and preparing design drawings for submission to the client. Alternatively, the client may have their own drawings prepared by an independent interior designer. The shop fitter arranges for purchase of standard equipment and merchandise or production of bespoke, delivers and physically installs them until the shop is ready for daily operation.
Many buildings contain asbestos, which was used in spray-applied flame retardant, thermal system insulation, and in a variety of other materials. Asbestos was sometimes "flocked" above false ceilings, inside technical ducts, and in many other small spaces where firefighters would have difficulty gaining access. Structural components like asbestos panels were also used. In residences, asbestos was often a component of a type of flocked acoustic ceiling called popcorn ceiling or "cottage cheese ceiling", until its production was banned in 1978. However, the ban allowed installers to use up remaining stocks, so houses built as late as 1986 could still have asbestos in their acoustic ceilings. The only way to be sure is to remove a sample and have it tested by a competent laboratory.

Access Security

Dedicated to provide the most effective and economical security solutions through design, supply and installation - we can provide small or large integrated systems tailored to meet the needs of any domestic, commercial or industrial property.

Planning is crucial to success - you will receive expert advice on the correct combination of electronic and/or mechanical access, control cameras, recording equipment and assisted lighting to match your needs.



Using two-button key fobs which transmit a unique and highly secure encrypted code to a receiving unit, the system is ideally suited to applications such as car park entry and exit - where there is a requirement for remote barrier operation. The system enables both receiver channels to be connected to an access control unit, providing the ability to control two access points through just the one, two-button key fob.

As the unit is capable of operating at distances of up to 100 metres, the receiving unit may be remotely and conveniently located to suit individual application needs ¬ for example mounted in a roof space or other discrete location.
Swipe card readers offer a low-cost, flexible, easily maintained means of controlling entry to and exit from premises. They can be fitted to many different internal and external doors and to other entry points, such as gates and barriers. As each card is individual, you can restrict access to, for example, computer server rooms, and can automatically record who went where and when.

The occupants of a building carry a small swipe card that incorporates a magnetic stripe storing individual identification and access policy data. Unlike proximity reader systems the card is read by physical contact with a reading head on a dedicated reader located outside a door, turnstile or other entry barrier. The user swipes the card in the reader and may then be asked to key in a PIN number as further validation.

There can be hundreds of cards on one system and individual users can be easily added into the system. Lost or broken cards and cards of people who have left the organisation can be just as effortlessly deleted.

External card readers can be housed in a weatherproof, vandal-resistant casing, making them long-lasting and resilient.
Biometric access control refers to a specific example of access control, which is the business of authorizing personnel to enter a closed quarters or gain access to a restricted object. Biometric access control is the science and technology of the business as it relates to analysing biological data as a means to control access. Biometric access control features can measure various human characteristics like a person's fingerprint, their eye retinas and irises, their vocal patterns, facial shapes and hand measurements.

Biometric access control is very effective at promoting security within professional companies, as it would be anywhere from extremely difficult to impossible to fake a biological imprint.
Car park Barriers are ideal for controlling your site's car park and road entry points. Barriers provide an efficient and effective way of increasing security at your premises, and can double up as a way of monitoring the number of vehicles passing through the control point.

Suitable for both large and small premises, automatic barriers are highly adaptable, can work in any weather, giving maximum throughput to authorised personnel. Barriers can be supplied complete, ready to accept power and data connections, and can will operate with access control and ticketing systems.
A security alarm is a system designed to detect intrusion - unauthorized entry - into a building or area. Security alarms are used in residential, commercial, industrial, and military properties for protection against burglary (theft) or property damage, as well as personal protection against intruders. Car alarms likewise protect vehicles and their contents. Prisons also use security systems for control of inmates.

Some alarm systems serve a single purpose of burglary protection; combination systems provide both fire and intrusion protection. Intrusion alarm systems may also be combined with closed-circuit television surveillance systems to automatically record the activities of intruders, and may interface to access control systems for electrically locked doors. Systems range from small, self-contained noisemakers, to complicated, multi-area systems with computer monitoring and control.
With a range of alarm signalling methods, such as basic digital communicators or secure monitoring with radio GSM back-up, intruder and panic attack alarms are designed to be monitored, and this is essential for alarm verification, initiating an appropriate response and for making remote diagnostic checks.
Mechanical locking devices provide the basic functions of any security device: identification (key and cylinder) and mechanical strength (the lock). Mechanical locks include locks for timber or PVCu doors and windows. Additional security items such as door chains and bolts are also in the mechanical security range.
An Internet protocol camera, or IP camera, is a type of digital video camera commonly employed for surveillance, and which unlike analogue closed circuit television (CCTV) cameras can send and receive data via a computer network and the Internet. Although most cameras that do this are webcams, the term "IP camera" or "netcam" is usually applied only to those used for surveillance.
HD CCTV (High Definition Closed Circuit Television) is an open industrial standard for transmitting uncompressed high-definition digital video over point-to-point coaxial cable links for video surveillance applications. HD CCTV uses the SMPTEHD-SDI protocol and can transmit 720p or 1080p video over at least 100 m of RG59 cable.
Automatic number plate recognition (ANPR) is a mass surveillance method that uses optical character recognition on images to read vehicle registration plates. They can use existing closed-circuit television or road-rule enforcement cameras, or ones specifically designed for the task.

ANPR can be used to store the images captured by the cameras as well as the text from the license plate, with some configurable to store a photograph of the driver. Systems commonly use infrared lighting to allow the camera to take the picture at any time of the day. ANPR technology tends to be region-specific, owing to plate variation from place to place.

Mechanical Engineering

Working with our key partner specialists we can provide a full range of co-ordinated mechanical services and HVAC solutions - all installed in a professional manor, at a competitive price and tailored to meet a client's particular requirements.

All our trade's people are qualified personnel with many years of experience. They are individually registered with the approved bodies responsible for gas, electrical & renewable installation.



HVAC (heating, ventilation, and air conditioning) is the technology of indoor and vehicular environmental comfort. HVAC system design is a sub-discipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as in HACR (such as the designation of HACR-rated circuit breakers).

In modern buildings the design, installation, and control systems of these functions are integrated into one or more HVAC systems. For very small buildings, contractors normally capacity engineer and select HVAC systems and equipment. For larger buildings, building services designers and engineers, such as mechanical, architectural, or building services engineers analyse, design, and specify the HVAC systems, and specialty mechanical contractors fabricate and commission them. Building permits and code-compliance inspections of the installations are normally required for all sizes of buildings.
Vapour-compression refrigeration is one of the many refrigeration cycles available for use. It has been and is the most widely used method for air-conditioning of large public buildings, offices, private residences, hotels, hospitals, theatres, restaurants and automobiles. It is also used in domestic and commercial refrigerators, large-scale warehouses for chilled or frozen storage of foods and meats, refrigerated trucks and railroad cars, and a host of other commercial and industrial services. Oil refineries, petrochemical and chemical processing plants, and natural gas processing plants are among the many types of industrial plants that often utilize large vapour-compression refrigeration systems.

Refrigeration may be defined as lowering the temperature of an enclosed space by removing heat from that space and transferring it elsewhere. A device that performs this function may also be called a heat pump.
Plumbing is the system of pipes, drains fittings, valves, valve assemblies, and devices installed in a building for the distribution of water for drinking, heating and washing, and the removal of waterborne wastes, and the skilled trade of working with pipes, tubing and plumbing fixtures in such systems.

Drainage has undergone a large-scale environmental review in the recent past in the United Kingdom. Sustainable Urban Drainage Systems (SuDS) are designed to encourage contractors to install drainage system that more closely mimic the natural flow of water in nature. Since 2010 local and neighbourhood planning in the UK is required by law to factor SuDS into any development projects that they are responsible for. Drainage manufacturers that are showing a commitment to SuDS in pioneering improved environmental drainage options in the United Kingdom include Alumasc Exterior Building Products, Aco Technologies and Polypipe.

Slot drainage has proved the most breakthrough product of the last twenty years in the as a drainage option. As a channel drainage system it is designed to eliminate the need for further pipework systems to be installed in parallel to the drainage, reducing the environmental impact of production as well as improving water collection. Both stainless steel and concrete channel slot drainage have become industry standards on construction projects.
Lightning flashes to structures can be hazardous to people, as well as to the structures themselves, their contents and installations. The possible types of damage are injuries to living beings due to step and touch voltage; physical damage (fire, explosion and mechanical destruction) due to lightning current effects; and failure of internal systems due to lightning electromagnetic impulse (LEMP). This is why the application of lightning protection measures is essential. The need for protection, the economic benefits of installing protection measures and the selection of adequate protection measures should be determined in terms of risk management.
Escalators are used around the world to move pedestrian traffic in places where elevators would be impractical. Principal areas of usage include department stores, shopping centres, airports, transit systems, convention centres, hotels, arenas, stadiums and public buildings.

The benefits of escalators are many. They have the capacity to move large numbers of people, and they can be placed in the same physical space as one might install a staircase. They have no waiting interval (except during very heavy traffic), they can be used to guide people toward main exits or special exhibits, and they may be weatherproofed for outdoor use. A non-functioning escalator can function as a normal staircase, whereas many other conveyances become useless when they break down.

There are two types of elevators, hydraulic and traction. The hydraulic elevator consists of a cab attached to the top of a hydraulic jack similar to a jack used for a car lift in a service station. The hydraulic jack assembly normally extends below the lowest floor and is operated by a hydraulic pump and reservoir, both of which are usually located in a separate room adjacent to the elevator shaft.

Hydraulic elevators are the type generally used in single-family residences. The second type is the traction elevator. This is the system that is most commonly associated with elevators. The traction system consists of a cable that is connected to the top of the cab and is operated by an electric motor located in a penthouse above the elevator shaft.
Natural lighting systems are the perfect complement to ventilation systems. Day-lighting systems offer a modern, realistic and compelling alternative to artificial lighting for commercial, industrial and domestic projects.

The benefits of piping brilliant, natural sunlight into a space are widespread and available for both new and existing buildings. Natural light systems can successfully transform homes, offices, schools, factories and hospitals while reducing their energy consumption, building running costs and carbon footprint and aiding common seasonal workplace disorders like SAD.

Maintenance Services

Our aim is to make the management of your facilities seamless and professional with our 24/7 365 reactive maintenance and planned preventive programmes.

Specialising in combined system servicing during the same visit, we are committed to cost effective maintenance and facilities management - providing you with a single point of contact for all your facility needs.



We offer a 24 Hour, 365 Days emergency call out service so if your vital equipment begins to malfunction or cause a problem you can rest assure that we will be there to help.
Planned Preventative Maintenance is the most important part of ensuring the correct running of your systems, and will reduce time spent on inconvenient, expensive call-outs. It is proven that regular maintenance of equipment will greatly reduce the number of breakdowns.
Health and Safety legislation requires all commercial and public premises to have an emergency lighting installation that complies with BS5266-1:2011 and BS EN 50172:2004.

In the event that power supplies are down and you find you and your staff in an emergency situation, such as a fire, your emergency lighting should kick in to provide suitable illumination so that people can evacuate the premises safely.

The main reason for a system is to enable the building to meet fire safety legislation and maintenance requirements to ensure safe passage in the event of fire or power failure.
We offer a complete consultancy service in the field of energy surveys, power quality surveys and load profiling, studies are available for many applications and solutions although each is designed to suit the individual requirements of a client's site, the clients expectations and their budget.

If your harmonic survey identifies excess harmonics as the root cause of your power quality problems, then the information and recommendations contained within the report will enable the necessary engineering design to provide the most cost-effective solution.
If you manage a commercial premises you will be familiar with how often plant equipment can break down. Because it requires continual maintenance, you need an expert plant equipment breakdown partner who is on hand quickly whenever something goes wrong.
From projects such as changing existing light fittings to new energy efficient LED models, upgrading heating appliances, installing a new solar photovoltaic system or electric vehicle charging point, whatever the task, we always provide the same professional and punctual service.


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