Commercial electrical work planned around how the building runs.
Electrical installation, testing and EICRs, power and distribution, lighting, emergency lighting and planned electrical maintenance for schools, care settings, offices, industrial units and public buildings across Surrey and surrounding counties.
Commercial electrical, in buildings that stay open
Most commercial electrical work has to be done around a building that cannot stop.
A school runs to term dates, a care setting operates around the clock, and an office or industrial unit needs continuity for at least part of its operation. That constraint, rather than the electrical work itself, is usually what shapes a commercial electrical programme: when circuits can be isolated, which zones can be handed over at a time, and how much of the installation has to stay live while the rest is replaced.
ComGas delivers commercial electrical installation, testing and inspection, power and distribution work, lighting and emergency lighting, and planned and reactive electrical maintenance. Installation work is carried out in accordance with BS 7671 (18th Edition), with appropriate certification and documentation provided where required.
Because ComGas also delivers the mechanical, gas and HVAC services on many of the same buildings, electrical work can be sequenced against plant, pipework and controls on one programme rather than coordinated between separate contractors. Looking for electrical work at home? Visit Residential Electrical Services.
ComGas Services UK Ltd Commercial electrical services from Farnham, Surrey.
Commercial electrical services
Each part of the electrical scope has its own page, so you can go straight to the work you need.
Installation and fit-out, condition reporting, distribution, lighting and ongoing maintenance are separate disciplines with separate constraints. They are covered individually below.
Commercial Electrical Installation
Containment, distribution, power and lighting for new build, refurbishment and fit-out projects, certified on completion.
Farnham Heath End School — external LED screen and associated electrical installation.
ComGas managed the project and the associated electrical installation for a new external digital screen beside the school’s all-weather sports pitches, working with Eclipse Digital Media and the school.
ComGas holds an ongoing maintenance relationship with Farnham Heath End School. The full story, including the community and grassroots sport background, is published in the ComGas news section.
ComGas project management
Associated electrical installation
Coordination with Eclipse Digital Media and the school
Electrical work rarely arrives on its own — it lands against plant, pipework and a programme.
On a plant replacement the electrical scope is the isolation, the supply, the containment and the controls wiring that make the mechanical work usable. When those sit with two contractors, the interface between them is where programmes slip. ComGas covers mechanical and electrical services under one appointment, so switch-off windows, containment routes and plant room layouts are agreed once.
Isolation and switch-off windows agreed around building operation
Supplies and distribution sized for the new plant
Containment routes coordinated with pipework and ductwork
Controls and BMS interfaces wired and commissioned
Safe strip-out and reinstatement of existing services
One appointment across mechanical and electrical scope
Genuine reviews from ComGas customers submitted through Google.
Posted on Google
Ricky Matthews
5 October 2026
Trustindex verifies that the original source of the review is Google.
I'm the site Manager at St Paul's primary school and we have used ComGas for a whole refit of our water pipes. They was brilliant excellent friendly team never left a mess and the pipe work is so neat and tidy very professional work. We Also had an issue with our school Kitchen gas interlock system I called on Thursday morning they was there checking it over and parts ordered and fixed by Monday morning definitely recommend this company for any of your works especially in schools.
Posted on Google
steve brown
5 October 2026
Trustindex verifies that the original source of the review is Google.
Comgas fit our central heating system six years ago and made a fantastic job of it .They have serviced it regularly every year ever since .
Matt has done the last two services for us and he is very thorough, he rectified a couple of small issues with the rads and is always pleasant and informative. He advices us of what he’s done and what he thinks will be required on our next years service.
We are happy to continue with their services and have found all the guys to be reliable and trustworthy.
Posted on Google
Julia Walker
30 September 2026
Trustindex verifies that the original source of the review is Google.
Paul Pharo turned up on an emergency,within minutes he gave us so much reassurance to a burst hot water pipe isolated went and got new parts and had the penthouse back up with hot water with minimal damage..
can’t thank him enough and the company Comgas
Posted on Google
Ian Chevalier
30 September 2026
Trustindex verifies that the original source of the review is Google.
First time we've used this company and it won't be the last. Very professional and efficient in everything they do and Matt was excellent in his knowledge and efficiency when dealing with our gas and plumbing problems.
Posted on Google
Kerryann Wood
25 September 2026
Trustindex verifies that the original source of the review is Google.
Really happy with the service! Matt came out to carry out our boiler service and was friendly, professional and did a great job. The office team were also lovely and really helpful when arranging everything. Would definitely recommend and use them again. Thank you!
Posted on Google
Rob Haynes
14 September 2026
Trustindex verifies that the original source of the review is Google.
Great service and the work completed in good time and professional company
Posted on Google
Ian Melville
11 September 2026
Trustindex verifies that the original source of the review is Google.
Boiler service today engineer Matt on site, again great job very thorough clean and polite would recommend Comgas very professional outfit lovely staff. 👍🛠
Posted on Google
Bazmac
8 September 2026
Trustindex verifies that the original source of the review is Google.
We use Comgas for our gas and water and Matt does a monthly check on the systems.
Always a pleasure do deal with.
Chloe in their office is really helpful with all enquiries
Barry
Nower House
Posted on Google
Lynn Brooks
8 September 2026
Trustindex verifies that the original source of the review is Google.
Highly recommend. I think the engineers name was Matt, came to service my boiler, friendly and got on with the job quickly and efficiently.
Rated 5.0 out of 5 from 75 Google reviews.
"Really happy with the service! Matt came out to carry out our boiler service and was friendly, professional and did a great job."
Kerryann, Google review, September 2026
"First time we've used this company and it won't be the last. Very professional and efficient in everything they do…"
Ian, Google review, June 2026
"…ended up coming to my place of work and sorting an old heating system that hadn't worked for years in a car showroom & workshop. Great team of guys"
What certification is provided for commercial electrical work?
Electrical installation work is carried out in accordance with BS 7671 (18th Edition), with appropriate certification and documentation provided where required. Inspection and testing work is issued as a written report with observations classified by urgency.
Do you carry out domestic electrical work?
Yes, but it is a separate journey. Rewires, consumer units, sockets and lighting, fault finding, home EV charging and homeowner EICRs are covered in our residential electrical section. These commercial pages cover schools, care settings, offices, industrial units and public buildings.
Can electrical work be carried out while the building stays open?
That is how most of it is done. Work is phased by zone, floor or department, with isolation and switch-off windows agreed around the building’s actual operating pattern and continuity maintained to critical areas throughout.
Can electrical work be coordinated with mechanical, gas or HVAC works?
Yes, and on many ComGas projects it is. Because we deliver mechanical services and commercial heating as well as electrical work, containment routes, plant room layouts and switch-off windows are agreed across both disciplines on one programme.
What is the difference between electrical testing and electrical maintenance?
Testing and inspection is condition and compliance work — it records the state of the installation and classifies what needs attention. Electrical maintenance is the planned and reactive work that follows: fault attendance, repairs and remedials. Testing tells you what to do; maintenance is the doing.
Can electrical work be included in a maintenance contract?
Yes. Electrical inspection, emergency lighting testing and planned electrical maintenance can be incorporated into a wider ComGas building-services maintenance programme, subject to the agreed asset and service scope.
Planning electrical work, or need an existing installation assessed?
Tell us about the building, the works planned and any access or timescale constraints. We can advise on the right approach and coordinate with any mechanical works already underway.
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