From hot and cold water systems through to pump installations and the wider pipework that connects them, ComGas provides commercial plumbing services for offices, schools, retail premises and other commercial buildings across Surrey and surrounding counties — surveyed, specified and coordinated around your site rather than treated as a single generic job.
A commercial building rarely has a single plumbing "system" — it has hot water storage and distribution, cold water services, the pumps that keep water moving where gravity or mains pressure cannot, and the pipework that ties all of it together and eventually needs draining, altering or replacing. Treating each of these as a properly scoped piece of work, rather than one generic call-out, is what keeps a commercial plumbing installation reliable over the years it is in service.
ComGas provides commercial plumbing contractor services for offices, schools, retail developments, care and residential settings and other commercial buildings across Surrey and surrounding counties, working alongside our commercial gas and commercial heating services where a project spans more than one discipline. Every piece of plumbing work starts with a survey of the existing installation, so what we specify and install is based on your actual building and equipment, not a standard assumption.
This hub introduces our commercial plumbing contractor service and the specific plumbing disciplines with a dedicated page so far — hot water systems and pump installations. Pipework installations, cold water systems, booster sets, break tanks, water treatment, chlorination, commercial drainage and leak detection are all part of the wider commercial plumbing scope we cover; ask us about any of these and we will confirm how it is scoped and delivered even where it does not yet have its own dedicated page here.
ComGas Services UK Ltd
Commercial plumbing services from Farnham, Surrey.
Each service below has its own dedicated page covering scope, process and what to expect. Other commercial plumbing disciplines are available on request while their dedicated pages are being built.
Our overview service for businesses and facilities managers appointing a commercial plumbing contractor across one or more of the disciplines below.
Design input, installation and compliance support for commercial hot water storage and distribution, separate from the heat source itself.
Installation and replacement of circulation, booster and drainage pumps within commercial plumbing and heating circuits.
Planned. Professional. Practical.
Every commercial plumbing project starts with a survey of the existing installation, whatever the scale. We look at what is already there, what condition it is in, and what the building actually needs, before specifying pipework routes, pump sizing or hot and cold water arrangements. Where a client's own consultant has already produced a design or specification, our role is to coordinate installation against it; where no separate design exists, we work within the scope you agree with us rather than assuming an open-ended design brief.
Installation is sequenced around your operations, whether that means working outside school hours, around retail trading, or within an agreed shutdown window for a plant room. Once complete, we confirm what has been installed and agree any ongoing maintenance arrangement separately, so plumbing work is never left as a loose end after handover.
Existing ComGas customers can use the Customer Portal to access relevant job and service information relating to commercial plumbing work carried out at their site. The functions and document visibility available depend on the account and contract configuration.
Portal access is for existing ComGas customers. Prospective customers can discuss portal options when scoping a piece of commercial plumbing work.
Residential & Development
Hot and cold water services, WC facilities and drainage pipework installed across commercial units at Brightwells Yard, Farnham.
View project
Leisure & Hospitality
Clubhouse heating, plumbing and drainage work at Farnham Rugby Club, carried out within a long-term local relationship.
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, coordination and what to expect from a commercial plumbing project.
Talk to the commercial plumbing teamYes. This hub currently has dedicated pages for our commercial plumbing contractor overview, hot water systems and pump installations. Pipework installations, cold water systems, booster sets, break tanks, water treatment, chlorination, commercial drainage and leak detection are all part of our wider commercial plumbing scope — get in touch and we can confirm how your specific requirement is scoped.
Yes. Many commercial plumbing projects sit alongside gas or heating work — a new water heater, a plant room upgrade, or a wider refurbishment — and we coordinate the plumbing scope with those projects so pipework, connections and sequencing line up correctly.
Both are possible. Where your own consultant has already produced a design, we coordinate installation against it. Where there is no separate design, we survey the site and specify pipework, pumps and hot or cold water arrangements within the scope you agree with us before work begins.
Yes, this is common. We discuss access, working hours and any specific operational constraints before agreeing a programme, and sequence plumbing work to minimise disruption where a building remains in use.
We survey the existing installation and discuss what you need before any quotation is issued, so the price reflects your actual building and equipment rather than a generic assumption.
Yes. Alongside individual plumbing projects, we can discuss an ongoing maintenance or service arrangement for plumbing systems as part of a wider commercial maintenance programme — see our Service & Maintenance page for how that works.
Whether it is hot water systems, pump installations, or a plumbing discipline not yet listed on this hub, share what you need and any access or timescale constraints. We can advise on scope before any survey or quotation is arranged.
For an urgent enquiry, please call our office directly.
Current accreditations and registrations.
Message the ComGas office on 01252 214120.