A plant room brings gas, heating, plumbing, electrical and controls systems together in one space — ComGas surveys, specifies and coordinates plant room design input, installation and refurbishment for offices, schools and commercial buildings across Surrey and surrounding counties.
Coordinated with your consultant's design where one exists
Commercial & industrial coverage
The room where every discipline meets
A plant room is only as good as the coordination between the trades inside it.
A commercial plant room typically holds boilers or other heat sources, pumps and pressurisation equipment, pipework distributing heat and water around the building, and increasingly the controls or building management equipment that ties it together. When these are installed or refurbished without proper coordination between disciplines, the result is a plant room that is difficult to maintain, awkward to access, and harder to alter later without disrupting everything else in the space.
This page covers the multi-discipline plant room service — surveying an existing plant room or planning a new one, specifying the layout and coordinating mechanical, electrical and controls trades so the finished space works as a system rather than a collection of separate installations. It is distinct from the gas-installation-led plant room work covered within our Commercial Gas services, which focuses specifically on gas pipework and appliance installation; we cross-refer between the two rather than duplicating either, and can coordinate both scopes as one project where your plant room work involves both.
ComGas provides plant room services for offices, schools, retail developments and other commercial buildings across Surrey and surrounding counties. Where your project already has an appointed M&E consultant or design team, our role is to coordinate installation against their design; where no separate design exists, we specify the plant room layout and installation within the scope agreed with you.
ComGas Services UK Ltd Commercial plant room services from Farnham, Surrey.
Commercial plant room services
New-build, replacement and refurbishment, coordinated across every discipline.
Whether it is a full new plant room or a refurbishment of an existing space, we assess what is already there and how the disciplines involved need to work together.
Plant Room Layout & Coordination
Surveying an existing plant room or planning a new one, and coordinating mechanical, electrical and controls trades within an agreed layout.
Existing plant room surveyed before any specification
Layout coordinated across mechanical, electrical and controls trades
Access and maintenance routes considered from the outset
Coordinated with your consultant's design where one exists
Survey the room, agree a layout, coordinate the trades, then commission as one system.
We start by surveying the existing plant room, or the space allocated for a new one, to understand its constraints — access, headroom, existing services, and how heat, water and controls need to move through it. From there we agree a layout with you, or coordinate installation against your consultant's design where one already exists, before sequencing the mechanical, electrical and controls trades involved.
Where a plant room replacement needs to happen without leaving a building without heating or hot water, we plan a phased approach and agree a shutdown window with you in advance. Once installed, the whole plant room is commissioned as one coordinated system rather than a set of separately signed-off installations, and the completed scope is confirmed on handover.
Survey of the existing plant room or allocated space
Layout agreed with you, or coordinated against your consultant's design
Mechanical, electrical and controls trades sequenced together
Phased approach agreed where continuity of service is needed
Coordinated commissioning across the whole plant room
Completed scope and documentation confirmed on handover
Access, sequencing and continuity of service all shape the plan.
Plant rooms are often cramped, awkward to access, and serve a building that cannot simply be switched off during the works. We consider access routes for both installation and future maintenance, how the trades involved need to be sequenced, and whether heating or hot water needs to be maintained throughout the project, before finalising a plan.
Access routes for installation and future maintenance assessed
Trade sequencing planned across mechanical, electrical and controls work
Continuity of heating or hot water considered where required
Existing services and risers identified before finalising a layout
Coordination with your consultant or principal contractor where appointed
Every plant room project is scoped to the specific space and building. Layout, sequencing and phasing are agreed with you before work begins rather than assumed from a standard template.
Genuine reviews from ComGas customers, submitted through Google.
Posted on Google
Nick
3 September 2026
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Matt from ComGas Services UK Ltd was very professional, polite, friendly and quick installing a new shower in my bath (and at a better height for me) and a much easier press-in plug for my sink! He left the place spotless. This is the kind of service and installation people dream about - a 5 star service (see photos).
Posted on Google
Laura Peters
17 August 2026
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I have used Comgas twice and both times have been very happy with the service. Very friendly and honest. The most recent time, the job turned out to be a lot bigger than they initially thought but it was no issue and Paul stayed the extra time to make sure the job was done properly! He was really tidy, took a lot of care with the work that was done and took the time to explain what he was doing and why. Pleased to have found a reliable heating company!
Posted on Google
James Ross
8 August 2026
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I had an issue with my boiler and Matt came out to have a look the same day and managed to fix it. Great, professional service. Highly recommend.
Posted on Google
Ian Chevalier
11 June 2026
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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
Karen Flackett
20 May 2026
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Excellent service. Matt came & fitted 2 taps & waste pipes he was polite & friendly & carried out the work efficiently & in a timely manner.
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Paul Norris
30 April 2026
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Fantastic experience from the chaps at ComGas! Special thanks to Matt who removed an old boiler and replaced with a new energy efficient to satisfy the demands of a five bed house with a few bathrooms/baths and showers. The ComGas admin team and Lee were fantastic too on the booking and administration side of things!
Posted on Google
Julie Galvin
21 April 2026
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Here at St Joseph's we have worked with Comgas for a number of years. They have completed big projects and undertake regular maintenance for our school. They price fairly, and their work is completed to a very high standard. All the engineers carry a DBS which makes life so much easier when trying to book an engineer visit.
On the rare occasion that we have an emergency I can trust that Lee will get one of his engineers to respond quickly and efficiently.
Nothing is too much trouble and no job is too small.
Posted on Google
Chesca Haley
16 April 2026
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Lee and the team are amazing! So helpful, so knowledgeable and really look after their customers. Highly recommend.
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Sarah Rogers
6 April 2026
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Absolutely amazing service, always a thorough job and very knowledgable. Really nice guys too. Lee has sorted numerous issues at work and around our house. We have recommended to friends and family who are also very happy
Posted on Google
Alison Molan
25 March 2026
Trustindex verifies that the original source of the review is Google.
Lovely engineers, Matt and Jack, were a pleasure to have in the house. Thorough, knowledgeable, tidy and polite. Would highly recommend.
Plant room FAQs
Questions about commercial plant room projects
Common questions about scope, coordination and how plant rooms relate to our commercial gas services.
How is this different from Commercial Gas Plant Room Installations?
This page covers the wider, multi-discipline plant room service — layout, coordination across mechanical, electrical and controls trades, and refurbishment of the whole space. Gas-specific plant room installation, focused on gas pipework and appliance connections, sits within our Commercial Gas services, and we coordinate the two where a project needs both.
Do you design our plant room, or work to an existing design?
Both are possible. Where your own consultant has already produced a plant room design, we coordinate installation against it. Where there is no separate design, we specify the layout within the scope agreed with you, rather than assuming open-ended design responsibility.
Can you refurbish a plant room without losing heating or hot water to the building?
In many cases, yes, through a phased approach and an agreed shutdown window. This depends on the specific plant room and building, and we assess this as part of any survey rather than assuming it is always possible.
Do you coordinate electrical and controls work as well as mechanical?
Yes. Plant room projects typically need mechanical, electrical and controls trades sequenced together, and we coordinate this as one project rather than treating each discipline separately.
Can you work alongside our own M&E consultant or principal contractor?
Yes. Where a project already has an appointed consultant, architect or principal contractor, we coordinate our plant room scope with theirs rather than working in isolation.
What is included in a plant room quotation?
A quotation sets out the agreed scope of work following our site survey, across all disciplines involved in that specific plant room. Anything outside that agreed scope is separately discussed before it is added to the project.
Planning a new plant room, or refurbishing an existing one?
Tell us about the building, the existing plant room if there is one, and any existing consultant or design team. We can advise on the right approach and arrange a site survey where appropriate.