Every make we repair

Boiler Makes We Repair in London

Gas and electric. If you have been told nobody works on your make, that is usually not true.

Answered 24 hours a day by a technical customer service member.

Find your boiler make

Not sure what you have? Tell us the name on the front of the boiler.

Gas Safe registered engineers
An engineer as soon as we can, booked around you
Cylinder and unvented systems as well as combis
Parts guaranteed for a year, rates agreed before work starts

No heating or hot water right now? Call 0203 868 6134. We will tell you the earliest realistic slot rather than the one you want to hear.

Google Reviews

"Very polite and respectable engineer...had two other heating company that struggle to find the issue with my boiler but ASAP repaired it on the same day thanks absolute life saver"
JA Morris
"Very professional and would recommend to anyone!"
Abby M.
"Engineer excellent and very time efficient."
Fiona G.

Prefer we call you? Request a call back

Tell us the make and your postcode and we can usually work out what has gone wrong before we come out.

The makes we repair

Pick your make and we will show you what its fault codes mean.

Worcester Bosch fault codes

Vaillant fault codes

Baxi fault codes

Ideal fault codes

Glow-worm fault codes

Potterton fault codes

Viessmann fault codes

Ravenheat fault codes

Heatline fault codes

Sime fault codes

Remeha fault codes

Unfamiliar badge? It is usually a familiar boiler

Worth reading if you have been told nobody works on yours.

Some of the makes above are built by the same company that builds a much bigger brand, using the same parts inside. So the fault codes are the same, the parts are the same, and an engineer who knows the big name already knows yours.

Make	Shares its platform with	What that means for you
Potterton	Baxi, same group	Looks like an orphan brand and is not one
Main	Baxi, same group	Same parts, different arithmetic on repair
Heatline	Vaillant Group	F75 means what it means on a Vaillant
Remeha	Baxi, same group	Grades its own codes by how serious they are

Did you know "Nobody works on that make" usually means nobody could be bothered to find the part. If somebody tells you that, ask them two questions: which part, and which supplier did you try? A real problem has an answer to both. And on a boiler that shares its parts with a bigger brand, the part is usually sitting on a shelf under the bigger brand's number.

No gas supply? Plenty of London flats run without one, so we also cover electric boiler repair.

An unfamiliar badge is usually a familiar boiler

Some of the makes we cover are built by a bigger manufacturer using the same parts, so the codes and the parts are theirs. Tell us the name on the front and we will work out the rest.

Call 0203 868 6134

What a fault code actually tells you

Every make uses different numbers, but they all mean the same sort of thing.

A fault code tells you which safety device stopped the boiler. It does not always tell you which part broke. That is why the same number can mean three different repairs. An ignition code, for example, might mean there was no spark, or a spark but no flame, or a flame the boiler could not see. When you ring, read the code out exactly as it appears, letters and dots and all, because on some makes the format changes what it means. And tell us the first code you saw, not the one showing now. Some boilers count how many times you have pressed reset and put their own code over the top of the real one.

Out of hours: we say honestly whether it is a tonight job or a morning job, which is what emergency boiler repair is for. Landlords: the same visit can cover the gas safety certificate.

No gas supply? We cover electric as well

Plenty of London flats have no gas at all.

There is no flue, no gas valve and nothing burning, so different things go wrong. Usually the heating element, the switch that feeds it, the pressure vessel or the wiring. Less can fail than on a gas boiler, but what does fail is electrical, and it needs somebody who sees them often. See electric boiler repair.

Google Reviews

"Efficient and amiable service all round. Even managed to save me money by fixing a thermostat that we thought was broken."
Graziano B.
"These guys provide an excellent service. A pleasure to deal with and professional"
Day Walker
"Took his time to listen to my concerns hence it was a nice job. Thank u so much"
Frank E.

Local boiler repair specialists

Clear advice. Careful repairs. Family-friendly service. Call 0203 868 6134

Where our engineers work

North and south of the river.

Hampstead Garden Suburb and FinchleyOften two appliances in one houseView services Sutton and CheamChalk belt, scale is the first checkView services CoulsdonValley chalk, very hard waterView services Kingston, Coombe and SurbitonCoombe Hill and Kingston HillView services Sydenham and Forest HillTall Victorians, long pipe runsView services All areasEvery area we have written upView all

These are where we work most, not a boundary. An engineer attends anywhere in north London and south London. Tell us where you are and we will say plainly when we can get to you.

Give us your postcode and we will say whether it is same day or next.

Safety

If you smell gas: do not touch any switches. Open the windows, leave the property, then call the National Gas Emergency Service on 0800 111 999. That line is free and open 24 hours. Call them before you call us. If a carbon monoxide alarm is sounding: get everyone out immediately, then call 999 if anyone feels unwell. Do not go back in until the property has been ventilated and checked. If the boiler locks out repeatedly: try one reset. If it locks out again straight away, stop. Repeated resets hide a fault that is still there, and on a gas appliance that is not a risk worth taking. Under the Gas Safety (Installation and Use) Regulations 1998, only a Gas Safe registered engineer may work on gas appliances. Never open the boiler casing yourself.

Questions about the makes we cover

How many boiler makes do you repair?

Every make in the grid above has its own page explaining what its fault codes mean, from Worcester Bosch and Vaillant through to Ravenheat, Keston and Sime. If you cannot see yours, ring and read us the name on the front, because a lot of boilers were sold under more than one badge. If there is no gas supply, see electric boiler repair.

I have been told nobody works on my make. Is that true?

Usually not. Some of the makes we cover are built by a much bigger manufacturer using the same parts, so the codes, the parts and the way you find the fault are all the same. Potterton and Main are built alongside Baxi, Heatline alongside Vaillant. If somebody says a part is unavailable, ask which part and which supplier they tried. An annual service is when a hard-to-find part gets spotted early.

Do you work on oil boilers?

No. We are a gas and electric firm and not oil registered, so an oil fired appliance needs an OFTEC registered engineer. That is why makes such as Firebird, Grant and Warmflow get no page here, and we do not take on commercial plant either. If you are unsure which yours is, ring and read us the name on the front. We also cover electric boilers.

How do I find out what make my boiler is?

The name is usually on the front panel, the model and serial on a label behind it. When you ring, read us whatever you can see, because the range name alone often places the code convention. Several manufacturers change the format between ranges. Mention a cylinder if there is one, because it is a second appliance and often the fault. See unvented cylinder repair.

Does the make change whether a repair is worth it?

Less than which part has broken. A circuit board or heat exchanger costs about the same whatever the badge, so on a cheaper boiler replacing it wins sooner, simply because the boiler around the part is worth less. Older discontinued models also run out of parts sooner. Everything else, sensors, electrodes, pumps and vessels, is worth repairing on any make. Our cost guide explains what drives the price.

Google Reviews

"He was very professional tidy and polite. Would recommend!"
Anna M.
"Very happy with this company very and professionally service. Fixed my leaking TRV and after draining my system and the refilled and vented the air . Thank you I have heating now"
Jamie K.
"Steve was very helpful and responsive"
Richard E.

Book an engineer for any make

Tell us the name on the front of the boiler, and the code if one is showing. With those two we can usually work out which part has failed before anyone sets off.

Call 0203 868 6134 Book an engineer online

Gas Safe registered. Unvented cylinder qualified. Parts guaranteed for a year. Covering London, north and south of the river, 24 hours a day.