Storage vessels, distribution pipework and the controls that keep hot water at the right temperature throughout a building — ComGas surveys, specifies and installs commercial hot water systems for offices, schools, care settings and hospitality buildings across Surrey and surrounding counties.
This page covers the storage and distribution side of commercial hot water — the vessels, pipework, circulation and controls that get hot water from wherever it is generated to every basin, shower, kitchen or cleaner's sink that needs it. The appliance or plant that actually generates the heat is a separate part of the picture: gas-fired commercial water heaters sit within our Commercial Gas services, and plate heat exchangers taking heat from a boiler or other heat source sit within our Commercial Heating services. We coordinate the distribution system with whichever heat source your building uses, rather than duplicating that scope here.
Getting hot water distribution right matters for more than convenience. Poorly designed pipework runs waste energy, take too long to deliver hot water at the tap, and can create conditions that are harder to manage from a water-hygiene perspective. We survey the existing installation — pipe runs, storage capacity, circulation arrangements and insulation — before specifying any new work, whether that is a full system replacement, an extension to serve a refurbished area, or an upgrade to improve performance at existing outlets.
ComGas installs and alters commercial hot water storage and distribution systems for offices, schools, care and residential settings and hospitality buildings across Surrey and surrounding counties, working to the scope agreed with you or coordinating installation against your own consultant's specification where one exists.
ComGas Services UK Ltd
Commercial hot water systems from Farnham, Surrey.
Whether it is a full replacement or an extension to an existing system, we assess what is already installed before specifying new work.
Installation and replacement of hot water storage vessels and the distribution pipework that carries hot water throughout the building.
Extending or altering an existing hot water system to serve a refurbished area, a new outlet, or a change in building use.
Reviewing existing distribution for temperature performance at outlets, and specifying controls or pipework changes to improve it.
Coordinating the distribution system with a gas-fired water heater, boiler or plate heat exchanger supplying it.
Planned. Professional. Practical.
We start by assessing the existing hot water system — storage capacity, pipe runs, circulation and insulation — and understanding the demand pattern of the building, whether that is a school with a short morning peak or a care setting with more consistent demand throughout the day. From there we specify storage, distribution pipework and controls to suit, coordinating with whatever heat source is supplying, or will supply, the system.
Installation is sequenced around your operations, and every system is commissioned and checked for temperature performance at representative outlets before handover. Where the heat source itself also needs replacing or upgrading, we coordinate that work through our Commercial Gas or Commercial Heating services so the two are delivered as one project rather than arranged separately.
How a building actually uses hot water — a short morning peak, continuous demand, or occasional heavy use in a kitchen or plant room — shapes the storage and distribution we specify. We also consider the distance hot water needs to travel, general water-hygiene good practice for storage and circulation, and any access or working-hours constraints, before finalising a design.
Every hot water project is scoped to the specific building and demand pattern. We do not apply a standard system size or layout regardless of how the building is actually used.
Education
A gas-fired water heater installed with new condensing boilers and a new flue during a school plant room refurbishment.
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Residential & Development
Hot water systems installed as part of the commercial unit fit-out at Brightwells Yard, Farnham.
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 hot water storage, distribution and how it relates to the heat source itself.
Talk to the hot water teamNo — this page covers the storage and distribution side of hot water. The heat source itself is covered by our Commercial Gas water heater services or Commercial Heating plate heat exchanger services, and we coordinate both where a project needs them together.
This is usually down to pipe run length, pipe sizing or the circulation arrangement in the existing system. We assess this as part of any survey and can specify changes to reduce delay where it is a genuine issue for the building.
Yes. We regularly extend existing hot water distribution to serve new or relocated outlets as part of refurbishment or fit-out projects, assessing the existing system's capacity before confirming the extension is viable.
Sizing is based on the building's actual occupancy and demand pattern — for example, a school's concentrated morning peak versus a care setting's more even demand through the day — rather than a standard assumption regardless of use.
Yes. General water-hygiene good practice for storage temperature, circulation and pipe insulation is reflected in how we specify commercial hot water systems, alongside the building's performance and energy requirements.
Yes. Hot water storage and distribution work is often part of a wider commercial plumbing contract, a plant room upgrade, or a boiler or water heater replacement, and we coordinate the scopes so they are delivered as one sequenced project.
Tell us about the building, how hot water is currently generated, and any issues you've noticed at outlets. We can advise on the right approach and arrange a survey where appropriate.
For an urgent enquiry, please call our office directly.
Current accreditations and registrations.
Message the ComGas office on 01252 214120.