£120 first hour  ·  Fixed quote after

Boiler Repairs London

Expert repairs for all makes of boilers. Our Gas Safe engineers diagnose and fix boiler faults quickly to restore your heating and hot water.

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Gas Safe engineer diagnosing a fault on a wall-mounted boiler

5 out of 5 stars

We had the classic boiler problem - heating but no hot water. The engineer explained it was the diverter valve and fixed it the same day. No more cold showers and the whole system is running better than before.

James, from Wandsworth

Boiler Repairs

Boilers are essential for your home's heating and hot water. Our engineers have extensive experience with all major boiler brands and can quickly resolve issues to restore your comfort.

Multi-brand expertise

We repair boilers from all manufacturers including Worcester, Vaillant, Baxi, Ideal, Glow-worm, and many others.

Common fault specialists

We're experienced in resolving boiler issues like diverter valve problems, plate heat exchanger faults, and flow issues.

Same-day repairs

We carry parts for common boiler faults, allowing us to complete many repairs on the first visit to minimize disruption.

Boiler Repairs across London

Our Gas Safe engineers provide fast, reliable service across these London areas

Boiler Repairs FAQs

What are common problems with boilers?

Common boiler issues include diverter valve faults (causing heat but no hot water), plate heat exchanger problems (often due to limescale), pressure loss, pump failures, and ignition problems. Our engineers can diagnose and fix these issues efficiently.

Why do I have heating but no hot water from my boiler?

This is typically caused by a faulty diverter valve, which should switch between heating and hot water modes. It's one of the most common boiler problems and one our engineers are very experienced in resolving.

How quickly can you repair my boiler?

We aim to repair your boiler on the first visit whenever possible. For standard appointments, we can typically attend within 24-48 hours. If specific parts need to be ordered, we'll provide a clear timeframe for completing the repair.

Is it worth repairing an older boiler?

This depends on the boiler's age, condition, and the nature of the fault. For boilers under 10 years old, repairs are usually worthwhile. For older models with significant issues, we'll provide honest advice about whether repairing or replacing your boiler offers better long-term value.

Why does my boiler lose pressure?

Boilers can lose pressure due to leaks in the system, issues with the expansion vessel, or problems with the pressure relief valve. Our engineers will identify the specific cause and provide a lasting solution rather than just topping up the pressure. If you're unsure what's causing it, try our low pressure diagnostic tool.