Water treatment
System flushing, chemical cleaning and dosing for heating and chilled water, and disinfection and chlorination of domestic water systems.
Water treatment across London and the South East
Clean water is what keeps a system working. We flush and chemically clean new and existing heating and chilled water systems, then dose them with inhibitor to protect the pipework and plant against corrosion and scale.
On domestic water systems we carry out disinfection and chlorination of new and altered pipework, storage tanks and outlets before they go into use, and provide the certificates to show it's been done.
What we do
- Pre-commission flushing
- Chemical cleaning
- Inhibitor and biocide dosing
- Dosing pot installation
- Disinfection of new and altered pipework
- Chlorination of storage tanks
- Flushing of outlets after disinfection
- Certificates and records
Protecting the system
A clean, correctly dosed system lasts longer, runs more efficiently and keeps manufacturers' warranties valid.
How we work →Frequently asked questions
Do you flush and dose new heating systems?
Yes. We flush and chemically clean new and existing heating and chilled water systems and dose them with inhibitor.
Can you disinfect new water pipework and tanks?
Yes. We disinfect and chlorinate new and altered domestic water pipework and storage tanks before they go into use, with certificates provided.
Is this part of commissioning?
It can be. Flushing and cleaning are usually carried out before commissioning on new installations, and we can also do it as a standalone job on existing systems.
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 →
Heating & chilled water
LTHW and CHW distribution, risers and large-bore pipework, flushed, tested and commissioned.
Find out more →
Public health
Booster sets, sectional cold-water storage, hot water generation and commercial plumbing.
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.