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Boiler repair London
Gas Safe Registered

Boiler Repair London

Boiler broken? Our Gas Safe engineers diagnose and fix all boiler makes and models. Same-day service available across London.

0800 123 4567
Quick Answer

Boiler repair in London costs £80–£250 depending on the fault. Most common issues - ignition failure, pressure loss, faulty diverter valves - are fixed on the same visit. A Gas Safe registered engineer should carry out all boiler work.

Boiler Repair Cost London - 2026 Prices

Job TypeTypical CostTime
Boiler diagnostic & repair (1 hr)£80–£1501 hour
Ignition / electrode replacement£120–£2001–2 hours
Diverter valve replacement£150–£3002–3 hours
Pressure sensor / PRV£100–£2001–2 hours
Pump replacement£200–£3502–3 hours
Full boiler replacement£1,800–£3,5001 day

* Prices are estimates for London. Fixed price confirmed before work begins. £60 call-out fee.

Expert Boiler Repair Across London

A broken boiler is more than an inconvenience - especially in winter. Our Gas Safe engineers carry a comprehensive stock of common parts and can fix most boiler faults on the first visit.

We service and repair all major boiler brands, offering transparent fixed-price quotes before any work begins. No surprises, no upselling - just honest, professional repairs.

Common Boiler Problems We Fix

  • No heating or hot water
  • Boiler keeps switching off
  • Strange noises (banging, whistling, gurgling)
  • Pilot light keeps going out
  • Low boiler pressure
  • Leaking or dripping boiler
  • Error codes on display
  • Radiators not heating evenly

Brands We Repair

Worcester BoschVaillantBaxiIdealGlow-wormPottertonFerroliIntergasViessmannAlphaAristonRemeha

And many more. Not listed? Call to confirm.

Boiler Service & Annual Maintenance

Regular servicing extends boiler life, maintains efficiency, and is often required to keep your manufacturer warranty valid. Our annual boiler service includes a full safety check, combustion analysis, and report.

Boiler & Heating Services

  • Boiler Installations, Servicing & Repairs
  • Unvented Systems Installation & Repair
  • Hot Water Cylinders (Vented & Unvented)
  • Central Heating Maintenance Contracts

Frequently Asked Questions

How long does a boiler repair take?
Most common boiler repairs take 1-3 hours on the first visit. Our Gas Safe engineers carry a comprehensive stock of common parts for all major brands to resolve faults same day.
Why does my boiler keep switching off?
Boilers switch off for several reasons including low pressure, overheating, a faulty thermostat, blocked condensate pipe or ignition failure. Our Gas Safe engineers diagnose and fix the root cause on the first visit.
Is it worth repairing an old boiler?
Boilers under 10 years old are usually worth repairing. For older boilers, we advise on the repair cost versus a new boiler installation to help you make the most cost-effective decision.
Do you carry spare parts for all boiler brands?
Yes, our engineers carry common parts for Worcester Bosch, Vaillant, Baxi, Ideal, Glow-worm and most other major brands. Most faults are resolved on the first visit without waiting for parts.

Boiler Not Working?

Call now for same-day diagnosis and repair.

0800 123 4567

Our Promise

🔒Gas Safe Registered
Same-Day Service
💷Fixed-Price Quotes
All Parts Guaranteed
🛡Fully Insured
24/7 EMERGENCIES
0800 123 4567