London

London boiler repairs

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  • Fixed price repairs†
  • Same day & next day repairs available
  • Gas Safe Registered engineers
  • Manufacturer approved

† Find out whether our amazing fixed price repair and no fix no fee offers are available for your manufacturer by getting a quote today.

Boiler repairs in London by Gas Safe engineers

If your boiler has stopped working, we offer boiler repairs in London at a fixed price. Same-day or next-day visits are available wherever possible, and all work is covered by our repair guarantee. We fix faults such as low pressure, leaks, strange noises and error codes.

Our team repairs combi, gas and electric boilers from every leading brand. When you book online, you pick the day that works for you. Your engineer starts by finding the cause of the fault. Once you're happy, they carry out the repair and test the boiler again. Your engineer can also answer any questions about your heating.

If you manage several rental homes, you can book each repair the same way. Our engineers repair and replace parts such as fans, pumps, valves and circuit boards.

Servicing and preventing breakdowns in London

Many breakdowns can be avoided with a yearly service. A service picks up worn parts and small faults before they stop the boiler.

During a service, the engineer checks the controls, the flame and the gas pressure. They also look for leaks and corrosion, and run a flue gas analysis. Our Gas Safe engineer in London will check the whole system, not just the boiler.

There are simple things you can do too. Check the pressure gauge every few weeks. Run the heating for a short time in summer to keep the pump moving.

Keep the area around the boiler clear, and don't block any vents. If you see a change in the flame colour or hear new noises, have it checked.

A service also helps keep your manufacturer's warranty valid. Your engineer completes the boiler booklet, so you have a record of the work.

Many people have their boiler serviced before winter, when the heating is needed most. That way, worn parts can be replaced before the cold weather starts.

If others in your home have noticed the problem, ask them what they saw. Every detail helps when the engineer arrives. If there's ever a smell of gas, the National Gas Emergency number is 0800 111 999.

Book online in a couple of minutes, or call us on 0333 733 5127.

Call us now

0333 733 1234

Losing pressure and other faults in London

Some of the most common faults we see are:

  • Boiler keeps losing pressure every few days
  • Hot water but no heating after a power cut
  • Pump not working, with a humming sound
  • Banging, gurgling or whistling noises that are getting louder
  • Frozen condensate pipe and a fault code on the display
  • Boiler keeps switching off and locking out
  • Thermostat not responding after new batteries
  • Diverter valve fault that stops the hot water

Get an instant price online and pick a repair date that suits you.

Other areas we cover near London

We also visit homes in these towns near London:

The boiler brands we cover

Leading boiler brands we repair include:

Boiler help & advice

If you'd like to read up first, try these guides:

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London Boiler Repairs FAQs

Thinking about boiler repairs in London? Start with these quick answers. You can read more on our boiler FAQ page.

How do I defrost a boiler condensate pipe?

Thaw it gently with warm water, then restart the boiler. Find the plastic pipe that runs from the boiler to the drain outside. The frozen part is usually at the end or at a bend. Once the ice has cleared, reset the boiler using the button or the steps in your manual.

What boiler brands can you fix?

All of them. Our engineers repair boilers from every leading brand, as well as many less common makes. That includes combi, gas and electric models. If you're not sure which boiler you have, the make is usually printed on the front panel. You'll also find it in the manual.

What is the price of a boiler repair in London?

You can check the price online in a couple of minutes. We give an instant price based on your boiler and what it is doing. On selected brands, the repair is at a fixed price. We don't charge hidden callout fees, and no work starts without your agreement.

Are your boiler repairs guaranteed in London?

Yes, always. Our repair guarantee is included with all work at no extra cost. It covers the repair our engineer carries out on your boiler. If you have any questions about the work afterwards, our customer team will be happy to help. Your engineer can also explain what the guarantee covers.

Will a Gas Safe engineer fix my boiler?

Yes, all of them are. The law says anyone working on a gas boiler must be on the Gas Safe Register, and our engineers are. They are fully trained, DBS-checked and manufacturer approved. Opening up a gas boiler without the right training can put lives at risk, so always leave repairs to them.