ComGas works as a commercial plumbing contractor for offices, schools, retail developments and other commercial buildings across Surrey and surrounding counties — coordinating pipework, hot and cold water systems, pumps and drainage as a single, properly sequenced scope of work, rather than a series of unconnected call-outs.
Appointing a commercial plumbing contractor usually means more than fixing one leak or replacing one pump. It means someone who can survey a building's existing hot and cold water systems, pipework and pumps, understand how they interact, and specify and sequence the work needed — whether that is a single new installation, a phased refurbishment, or an ongoing reactive and planned maintenance relationship. ComGas provides this contractor role for commercial and industrial buildings across Surrey and surrounding counties.
This page covers our role as a commercial plumbing contractor generally. Water and heating-circuit pipework is our scope here; gas pipework is a separate, gas-specific service on our Commercial Gas pages, and the two are coordinated rather than duplicated where a project needs both. Our hot water systems and pump installations pages cover those disciplines in more depth. Pipework installations, cold water systems, booster sets, water treatment, chlorination, commercial drainage and leak detection are part of the same commercial plumbing scope we cover, and we are happy to discuss any of them.
Every project starts with a site survey, not a standard price list. We look at what is already installed, how the building operates, and what any related consultant or design already specifies, before agreeing a scope of work and a programme with you. Where no separate design exists, we specify the plumbing installation within the brief you agree with us, and coordinate installation, testing and handover as one sequenced project rather than a series of disconnected visits.
ComGas Services UK Ltd
Commercial plumbing contractors based in Farnham, Surrey.
A commercial plumbing contract can cover one discipline or several. Below is how we typically group the work; ask us where your requirement doesn't map neatly to one of these.
New pipework runs and alterations to existing water and heating-circuit pipework for refurbishment, extension or change-of-use projects.
Storage and distribution pipework for hot water, and cold water services throughout a commercial building.
Installation and replacement of circulation, booster and drainage pumps within plumbing and heating circuits.
Commercial drainage work and water quality considerations, including leak detection and water treatment scoped as separate, specific pieces of work.
Planned. Professional. Practical.
We start every commercial plumbing instruction with a site survey — looking at the existing installation, how the building is used, and what any consultant's design already specifies. From there we agree a scope of work with you, including any access, working-hours or phasing constraints, before pricing or programming the project.
Where your own consultant or design team has produced drawings or a specification, our role is to coordinate installation against that design. Where no separate design exists, we specify the plumbing installation within the brief agreed with you, rather than taking on open-ended design responsibility beyond what has actually been agreed. Either way, work is carried out, tested and handed over with the completed scope confirmed in writing.
Every commercial building has different constraints — occupied space, restricted access routes, other services sharing the same riser or ceiling void, and operating hours that limit when disruptive work can happen. We consider all of this before finalising a scope, alongside general water-hygiene good practice for hot and cold water systems, so the plan we propose is one that can realistically be installed, maintained and, if needed, altered again in future.
Every plumbing contract is scoped to the specific building and installation. Sizing, routing and sequencing are agreed with you before work begins rather than assumed from a standard template.
Residential & Development
Brightwells Yard, Farnham, Surrey — commercial plumbing and mechanical installation within commercial units at the town-centre regeneration development, covering hot and cold water services, WC facilities,…
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Leisure & Hospitality
ComGas delivered a complete water-boosting and hot-water plant upgrade at Bourne Club, supporting new changing and shower facilities with an accumulator-based boosted-water system, twin high-recovery unvented…
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Leisure & Hospitality
Farnham Rugby Club, Farnham, Surrey – clubhouse central heating boiler replacement, bar refrigeration, plumbing repairs, and drainage investigation and blockage clearance. ComGas Services UK Ltd provides…
View projectGenuine reviews from ComGas customers, submitted through Google.
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"
James, Google review, October 2025
Common questions about scope, process and what to expect when you appoint ComGas as your commercial plumbing contractor.
Talk to the commercial plumbing teamA commercial plumbing contractor coordinates multiple systems — pipework, hot and cold water, pumps and drainage — as one scoped project, often alongside other trades or a wider refurbishment programme, rather than responding to individual call-outs one at a time.
Yes. We work on new installations, refurbishment and re-fit projects, and reactive repairs, surveying the existing installation first in every case so the scope reflects the actual building rather than an assumption.
Yes. Where a project involves other mechanical, electrical or building trades, we coordinate our plumbing scope with theirs, and can work alongside your appointed principal contractor or project manager where one is in place.
Both are possible. Where your own consultant has already produced a design, we coordinate installation against it. Where there is no separate design, we specify the plumbing installation within the scope agreed with you, rather than taking on open-ended design responsibility.
A quotation sets out the agreed scope of work following our site survey, including the pipework, fittings, pumps or water systems covered. Anything outside that agreed scope is separately discussed before it is added to the work.
Yes. Alongside individual projects, plumbing systems can be included within a wider commercial maintenance arrangement — see our Service & Maintenance page for how a planned, ongoing contract works.
Tell us about the building, the systems involved and any access or timescale constraints. We can advise on the right approach and arrange a site survey where appropriate.
For an urgent enquiry, please call our office directly.
Current accreditations and registrations.
Message the ComGas office on 01252 214120.