All Services
Boiler Repair in London
Boiler playing up? No hot water? Strange noises? Our engineers diagnose and repair all major boiler brands — quickly and honestly. If we can't fix it, you don't pay.
Boiler playing up? No hot water? Strange noises? Our engineers diagnose and repair all major boiler brands — quickly and honestly. If we can't fix it, you don't pay.
Why Choose Forge
A broken boiler is stressful enough without worrying about being overcharged. We keep things simple: fair prices, fast fixes, and no games.
We don't charge you just for turning up. You only pay for the diagnosis and repair work — nothing else.
Our vans carry a wide range of common boiler parts. This means most repairs are completed on the first visit, same day.
From Worcester Bosch to Baxi, Vaillant to Potterton — our engineers are experienced across every major brand on the market.
You get a clear, fixed price before any work begins. No call-out fee surprises, no unexplained extras on the invoice.
What We Cover
These are the faults we see most often. If your boiler is doing something it shouldn't, chances are we've fixed it hundreds of times before.
The most common complaint. Could be a diverter valve, thermostat, motorised valve, or several other causes. We'll find it fast.
Banging, whistling, gurgling, or kettling sounds usually point to a build-up of sludge, air in the system, or low pressure.
Leaks around the boiler can come from damaged seals, corroded pipes, or a failing heat exchanger. We locate and fix the source.
If your boiler keeps losing pressure, there's usually a leak in the system or a faulty pressure relief valve. We'll track it down.
Modern boilers display fault codes when something's wrong. We diagnose the code, identify the cause, and carry out the repair.
How It Works
Tell us the symptoms — error codes, noises, what's stopped working. We'll advise and book you in.
A Gas Safe engineer arrives with diagnostic tools and common parts, ready to get straight to work.
We find the fault and explain exactly what's needed. You get a clear price before any work begins.
The repair is completed, the system is tested, and all work is covered by our 1-year workmanship guarantee.
Transparent pricing, same-day service where possible, and a 1-year workmanship guarantee on all repairs.