Boiler Repairs
What affects scope
- The fault code and which part has failed
- Whether the part is in stock or needs ordering
- Age and make of the boiler
- Any leak or water damage around it
What to send first
- 1
The fault code or what the lights are doing
- 2
The pressure on the gauge
- 3
The make and model, from the boiler's front panel
Good fit when
- No heating or hot water
- The boiler shows a fault code or keeps locking out
- Your boiler is due its annual service
If the boiler works but some radiators stay cold, the Heating page is the better fit.

A boiler that stops working usually means no heating, no hot water, or both. Gareth repairs and services gas boilers across Caterham and the surrounding area, and he is Gas Safe registered (number 520810).
What to tell Gareth when you call
The more he knows before he arrives, the quicker the fix. Note any fault code or flashing light, the pressure on the gauge, whether it is heating, hot water or both that has stopped, and the make and model on the front of the boiler. Sometimes a phone call or a photo over WhatsApp is enough to point to the likely part.
Fixing the fault
Most faults come down to one part, such as a pressure gauge, a valve motor, a fan or a sensor. Gareth will tell you what has failed and what the repair costs. If the boiler is old and parts are hard to get, he will say so, and Boiler Installations explains what a replacement involves.
Annual servicing
A yearly service checks the boiler is burning safely and picks up worn parts before they fail. Many customers have Gareth back every year.
What our customers say
“Rang Gareth with an issue and within the hour he called and resolved the issue. I have not used GR Plumbing before but will not hesitate to call now for all my boiler issues. Would highly recommend Gareth from G R Plumbing.”
“Gareth got us out of trouble when our boiler broke down 10 years ago and we've used Gareth for our annual boiler check ever since. He is an exceptional engineer, knowledgeable about all aspects of boilers and central heating systems. He keeps you informed and is always punctual, he always works clean and is very polite and friendly. A true old school craftsman. Well done!”
“We have been using GR Plumbing for over 10 years to do our annual boiler service and those of some rental properties. Always a pleasure to have Gareth around, excellent service and knowledge.”
Frequently Asked Questions
Contact
Or call us on 07954 321485
Boiler Repairs by Area
Nearby towns we cover for this service.





