Heating & chilled water
Heating and chilled water distribution, risers and large-bore pipework for new installations, refurbishments and fit-outs.
Heating & chilled water across London and the South East
We install low temperature hot water and chilled water systems in steel, copper and press-fit, from the plant room through the risers to the final connection on each floor. We work from your drawings, coordinate with the other trades on site and test, flush and commission before handover.
We're used to working in occupied buildings, ceiling voids and raised floors, and to putting right pipework that has been damaged or poorly supported by others.
What we do
- LTHW and CHW distribution
- Vertical risers and large-bore pipework
- Steel, copper and press-fit systems
- Pressure testing
- Flushing and pre-commission cleaning
- Valves, strainers and commissioning sets
- Re-bracketing and remedials
- Plate heat exchanger and heat pump connections
Coordinated with the building
Pipework routed around the structure and other services, properly supported and insulated, and labelled so it can be maintained.
How we work →Frequently asked questions
Do you install chilled water as well as heating?
Yes. We install both LTHW and CHW systems, including risers, distribution and connections to terminal units.
Can you carry out flushing and pressure testing?
Yes. Every system we install is pressure tested and flushed before commissioning.
Do you take on remedial works to existing pipework?
Yes. We repair, re-support and alter existing heating and chilled water pipework, including in occupied buildings.
Other services.
Plant rooms & energy centres
Boiler plant and flues, headers, pump sets, pressurisation, plate heat exchangers and calorifiers.
Find out more →
Servicing, maintenance & repairs
Boiler servicing, planned maintenance, breakdowns and repairs, with a clear report after every visit.
Find out more →
Commercial gas
Installation pipework and appliances, testing, purging and certification to IGEM/UP/1 and UP/2.
Find out more →
Public health
Booster sets, sectional cold-water storage, hot water generation and commercial plumbing.
Find out more →
Water treatment
System flushing and dosing for heating and chilled water, and disinfection and chlorination of water systems.
Find out more →
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.