Our services.
Installation, maintenance and remedial works for commercial heating, chilled water, gas and public health systems, across London and the South East.
From plant room to final connection.
From a breakdown or a service visit to a full plant room replacement, every job is priced clearly, with inclusions and exclusions set out.

Plant rooms & energy centres
Boiler plant and flues, headers, pump sets, pressurisation, plate heat exchangers and calorifiers.
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Servicing, maintenance & repairs
Boiler servicing, planned maintenance, breakdowns and repairs, with a clear report after every visit.
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Commercial gas
Installation pipework and appliances, testing, purging and certification to IGEM/UP/1 and UP/2.
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Heating & chilled water
LTHW and CHW distribution, risers and large-bore pipework, flushed, tested and commissioned.
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Public health
Booster sets, sectional cold-water storage, hot water generation and commercial plumbing.
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Water treatment
System flushing and dosing for heating and chilled water, and disinfection and chlorination of water systems.
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Cat A & Cat B fit-out
Fan coil units, floor distribution and alterations to existing systems in occupied buildings.
Find out more →From first call to sign-off.
- 01Get in touchCall, email or send drawings. We visit site where it's needed.
- 02Clear quoteAn itemised price with inclusions and exclusions set out.
- 03PlanningRAMS, access and timings agreed before we start.
- 04The workCarried out, tested and commissioned by our own engineers.
- 05Sign-offCertificates, records and a clear report on completion.
Talk to CommGas.
Planning works, or dealing with a heating, gas or plumbing problem? Send us the details and we'll come back to you.

