Interiors and systems
Heating and boilers in London
GONT LTD is a London building company that upgrades central heating, from radiators, pipework and controls to boiler replacement, on its own or as part of a refurbishment or extension. By law, all work on gas boilers and appliances must be done by a Gas Safe registered engineer.
A heating system is only as good as its design: the right boiler output, radiators sized for each room, and controls that let you heat only the rooms you use.
Scope
What’s included.
- Boiler replacement: combi, system or regular
- Radiators, pipework and thermostatic radiator valves
- Heating controls and zoning
- System balancing and cleaning
- Heating planned into refurbishments, extensions and loft conversions
Planning your project
Time, cost and what to prepare.
What affects the time and cost
- The type of boiler and whether it moves
- How many radiators change
- Pipe routes and making good
- Whether a hot water cylinder is needed
Before you ask for a quote
- Photos of the boiler, cylinder and radiators
- The age of the boiler, if you know it
- Any building work you are planning
Rules in the UK
Permissions and regulations.
By law, anyone working on a gas boiler or other gas appliance must be Gas Safe registered; check the engineer's ID card on the Gas Safe Register and see the HSE guide to gas safety at home. Replacing a boiler is building work: a registered installer can self-certify it, and the new system must meet the energy efficiency standards in Part L (Approved Document L (gov.uk)). For a low carbon alternative, see our heat pump guide.
General guidance only, based on gov.uk and the Planning Portal. Your council or building control has the final say.
Things to watch
- Ask any gas engineer for their Gas Safe ID card and check it on the register.
- Landlords need a gas safety check every year.
How it works
From first call to finished room.
- 01
Free consultation and quote
Tell us what you have in mind and we’ll give you a free quote for your project.
- 02
The build
We review the project and agree the details, commence the work, then finish with quality control and a final check.
- 03
6-month warranty
On our construction services.
FAQ
Heating and Boilers: your questions.
Who can work on a gas boiler?
Only a Gas Safe registered engineer. Ask to see the engineer's Gas Safe ID card and check it on the Gas Safe Register.
Does a new boiler need building regulations approval?
It is building work, but a registered installer can self-certify it and notify building control for you.
Do my radiators need replacing with a new boiler?
Not always. Radiators that are sound and big enough for the room can usually stay; the system may need cleaning and balancing.
What do landlords need for gas safety?
A gas safety check by a Gas Safe registered engineer every year, a copy for the tenants, and a carbon monoxide alarm in rooms with a fixed combustion appliance other than a gas cooker.
Do you give a warranty?
Yes. GONT LTD offers a 6-month warranty on its construction services. If an issue appears in that time, we come back and put it right.
How do I get a free quote?
Call +44 7783 930505 (Monday to Friday, 9am to 5pm), email info@gont.co.uk or use the form on this page. The consultation and quote are free.
Which areas of London do you cover?
We work across West London and Central London. Our showroom is in Fulham.
Are you insured and certified?
Yes. GONT LTD has public liability insurance, and our team holds NICEIC and F-Gas certifications.
Free quote
Get a free quote for heating and boilers.
- +44 7783 930505Mon–Fri, 9am–5pm
- info@gont.co.ukEmail
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Prefer to talk it through? Contact us, call +44 7783 930505 or visit our showroom in Fulham. See all our services.