Boiler fault diagnostics & repairs
Fix low pressure, noises, error codes, and replace parts.
Vetted & insured prosInstant quotes4.9/5 · 1,400+ reviews
What's included in this service
So you know exactly what you're paying for.
Full inspection and testing of your boiler and heating system- Expert diagnosis of error codes, leaks, or performance issues
- Checking gas pressure, ignition, thermostats, and sensors
- Repair or replacement of faulty components (valves, pumps, fans, etc.)
- Cleaning of blocked parts such as filters or condensate traps
- Safety testing after repairs to ensure full functionality
- Clear explanation of findings and maintenance advice
- Clean, tidy service — no mess left behind
May cost extra
- Replacement parts or specialist components not included in standard repair
- Additional work on related heating system issues (radiators, pipes, etc.)
- Boiler servicing or power flushing if required for long-term fixes
- Out-of-hours or emergency call-outs
Is this service right for me?
This service is ideal if…
- Fast and accurate fault-finding by experienced Gas Safe engineers
- Reliable repairs for common boiler issues like no heat or hot water
- Professional service that restores safety and efficiency
- Honest advice with transparent pricing and no hidden costs
This service is NOT for:
- Full boiler installations or upgrades (see Boiler Installation)
- Emergency breakdowns requiring immediate attendance (see Emergency Boiler Repair)
- Large commercial or industrial boiler systems
You may also need
Emergency boiler breakdown repair
Urgent repair when there's no heating or hot water.
Boiler servicing (annual maintenance)
Annual service to clean, safety-check and tune the boiler.
Boiler installation & replacement
Install new boilers or upgrade old units with gas work.
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Boiler fault diagnostics & repairs
£85