Commercial gas
Commercial gas installation pipework and appliances, testing, purging and certification by Gas Safe registered engineers.
Commercial gas across London and the South East
CommGas installs and tests gas installation pipework in commercial and educational buildings, from new supplies and meter installations through to plant room, kitchen and laboratory connections. Every installation is strength and tightness tested and purged to IGEM standards, with the certification to go with it.
We also carry out gas supply surveys and pipe sizing, and work with the gas transporter on meter upgrades where more capacity is needed.
What we do
- Gas installation pipework
- Meter installations and upgrades
- Strength and tightness testing
- Direct purging
- Commercial gas appliances
- Catering and laboratory gas
- Isolation valves and interlocks
- Gas supply surveys and pipe sizing
Gas Safe registered
All gas work is carried out by Gas Safe registered engineers, with test results and certificates issued on completion.
How we work →Frequently asked questions
Are your engineers Gas Safe registered?
Yes. CommGas is Gas Safe registered (registration number 547924) and all gas work is carried out by registered engineers.
Do you carry out tightness testing and purging?
Yes. We carry out strength and tightness testing and purging on commercial installations to IGEM/UP/1.
Do you work on school and college gas installations?
Yes. We work on gas installations in schools and colleges, including laboratories and kitchens, to IGEM/UP/11.
Other services.

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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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 →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.
