Cost guidance

Boiler repair costs: understand the fault before approving work

An evidence-led repair-cost guide that will be expanded with anonymised first-party job data. We cover England, Scotland and Wales; Northern Ireland is not covered.

Call for boiler help

Answer first

What you need to know

A cost can only be confirmed after a safe diagnosis. The fault code, boiler model, symptoms, parts required and access all affect the final repair route.

Safety verdict

Start with visible, external checks only. If you are uncertain, arrange a qualified engineer rather than guessing.

Safe checks before you call

Record the fault code, if one is displayed.
Note whether you have heating, hot water, both, or neither.
Do not agree to internal boiler work without a clear diagnosis.

What an engineer checks

Diagnosis is more than the visible symptom.

Identify the root cause rather than quoting from a code alone.

Explain whether a same-day repair is practical.

Give clear repair options before work proceeds.