Boiler repair in London, fault found first
Need boiler repair in London? Perhaps the heating won’t come on, the hot water has gone, or the boiler has locked out with a code on the screen. We track down the fault before giving you a price. Then we’ll tell you honestly whether repairing or replacing makes more sense, with figures for both, so the choice stays yours.
- You hear the price before any work starts
- Gas Safe registered and insured
- DBS-checked engineers at your door
- Emergency line open 24/7
Mon–Fri 8:00–17:30 · Emergency callout available 24/7
Ask us about boiler repair
Your name, number and postcode is enough to start. The rest can wait.
Got it. Thank you.
Keep your phone close — we’ll ring the number you gave us. Need someone sooner? Call 0203 488 0733.
What we’ll do for you
- Finding the fault when your boiler breaks down
- Locked-out boilers showing a fault code
- Heating off or hot water gone
- Problems with radiators and central heating
- Heating controls and thermostats
- Pressure that drops and needs constant topping up
Try these before you ring
You might fix it yourself. If so, great. If not, we’re a call away.
Three quick checks before you ring
Look at the pressure gauge. It should sit at roughly 1 to 1.5 bar. Check the thermostat is actually asking for heat. And see whether your other gas appliances, like the hob, still work. Low pressure and thermostat trouble are two of the three callouts we see most, so they’re worth ruling out.
Snap a photo of the fault code
Showing a code? Take a picture of the display and WhatsApp it to us with the boiler’s make and model. Often that tells the engineer which part to bring, and it can save you a second visit.
Should you repair or replace?
If your boiler is older than about twelve years and needs a costly part, replacing it is usually the better move. If it’s younger, repairing generally makes more sense. Either way, you’ll get both figures and the decision is yours.
The pressure keeps falling
Having to top up every few weeks means water is escaping somewhere. It’s either a leak on the system or an expansion vessel that has failed. Refilling won’t cure it, so it’s worth tracking down before it marks a ceiling.
What people ask us
Is it worth fixing my boiler?
That comes down to its age and which part has gone. We’ll price up a repair and a replacement, so you can weigh them side by side instead of hearing just one figure.
What does the fault code on my boiler mean?
Every manufacturer uses different codes, so we’d rather look than guess. WhatsApp us a photo of the display with the make and model. Most of the time we can tell you the likely cause before an engineer even leaves.
Why does my boiler pressure keep dropping?
Most often there’s a leak somewhere on the system, or the expansion vessel has failed. Topping it up again and again only hides the problem, and a slow leak above a ceiling can turn costly.
Is your team Gas Safe registered?
Yes, they are. By law, gas work has to be done by a Gas Safe registered engineer.
Boiler repair in your part of London
The areas that call us about this most often.
- Boiler repair in Wimbledon
- Boiler repair in Ealing
- Boiler repair in Croydon
- Boiler repair in Harrow
- Boiler repair in Dulwich
- Boiler repair in Fulham
- Boiler repair in Wandsworth
- Boiler repair in Clapham
- Boiler repair in Bromley
- Boiler repair in Greenwich
- Boiler repair in Kensington
- Boiler repair in Walthamstow
- Boiler repair in Brixton
- Boiler repair in Chelsea
- Boiler repair in Battersea
- Boiler repair in Tooting
- Boiler repair in Hackney
- Boiler repair in Hammersmith
- Boiler repair in Lewisham
- Boiler repair in Putney
- Boiler repair in Acton
Other jobs we can help with
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Emergency Plumbing
Burst pipe, bad leak or no water at all? Ring us any hour and we’ll get an engineer on the way.
Read about Emergency Plumbing -
Boiler Service
One check a year keeps your boiler safe, running efficiently and covered by its warranty.
Read about Boiler Service -
Boiler Installation
The right size boiler for your home, fitted properly, with the price agreed before we begin.
Read about Boiler Installation -
Boiler Replacement
A new boiler when yours has truly had its day, and a straight answer on whether it has.
Read about Boiler Replacement -
Drain Unblocking
Blocked sinks, toilets and outside drains cleared with the right kit, not a bottle of chemicals.
Read about Drain Unblocking -
Leak Detection
We track down hidden leaks with acoustic and thermal kit before any floor comes up.
Read about Leak Detection -
Bathroom Installation
From swapping one fixture to a complete strip-out and refit, with the price agreed first.
Read about Bathroom Installation -
Toilet Installation
A new toilet put in, an old one replaced, or a WC moved somewhere it’s never been before.
Read about Toilet Installation -
General Plumbing
Taps, toilets, radiators and pipes. All those little jobs that keep getting put off.
Read about General Plumbing -
Commercial Plumbing
Offices, restaurants, shops and blocks of flats, with work planned around when you’re open.
Read about Commercial Plumbing -
Gas Safety Certificates
Landlord gas safety certificates from a Gas Safe registered engineer, with your paperwork sent the same day.
Read about Gas Safety Certificates -
CCTV Drain Surveys
A camera inside your drain shows exactly what’s wrong, so no one has to guess from what happens above ground.
Read about CCTV Drain Surveys -
Drain Repairs
When a drain is actually damaged, not just blocked, we repair it by digging down or, where the pipe allows, with no digging at all.
Read about Drain Repairs -
Wet Rooms & Walk-In Showers
Level-access showers and full wet rooms, with the tanking and falls that decide whether yours leaks in five years or never does.
Read about Wet Rooms & Walk-In Showers -
Air Conditioning Repair
Stopped cooling, dripping indoors or tripping the breaker? We find the fault before we quote anything.
Read about Air Conditioning Repair -
Air Conditioning Maintenance
A yearly check that keeps your system cooling well and catches a refrigerant leak before it turns into a breakdown.
Read about Air Conditioning Maintenance -
Air Conditioning Installation
Split and multi-split air conditioning, properly sized and positioned, and fitted by F-Gas registered engineers.
Read about Air Conditioning Installation -
Air Conditioning Replacement
A new system when yours has reached the end, including older units on a refrigerant that can no longer be topped up.
Read about Air Conditioning Replacement
Know which brand you have?
Find your boiler on the list. Each page covers the quirks and faults we see on that make.
Looking for boiler repair in London?
Here when you need us. Say what’s up and where you are. We’ll give you the price before we start.