Boiler Breakdown — Greenwich
Boiler Breakdown in Greenwich
Gas Safe registered engineers responding to boiler breakdowns across Greenwich — Greenwich, Woolwich, Eltham, Charlton. From £150. Emergency diagnostic service with same-day attendance and common spares carried on every call-out.
Common faults in Greenwich
Common Boiler Breakdown Causes
Pressure loss
Low system pressure (below 1 bar) is the most common cause of boiler lockout in London homes. Usually caused by a micro-leak in the system or a failed pressure vessel. Check the gauge and repressurise if between 0.5 and 1 bar — below 0.5 bar, call us.
Diverter valve failure
On combi boilers, the diverter valve switches flow between heating and hot water. When it fails, you get heating but no hot water, or vice versa. Common fault on all major brands after 8–10 years of use.
PCB (circuit board) failure
The PCB controls all boiler functions. PCB failures cause intermittent lockouts, incorrect fault codes and complete failure. Often triggered by power surges or water ingress from a leak inside the boiler casing.
Boiler age and repair decisions: boilers under 10 years old → repair is usually worthwhile. Over 12–15 years with multiple faults → replacement is often more cost-effective. We provide honest advice on repair vs replace at every call-out.
Areas in Greenwich we cover
What we do in Greenwich
Boiler breakdown diagnostic checklist
180+ verified reviews
Trusted by London homeowners
60 reviews
Checkatrade.com
120 reviews
MyBuilder.com
Common questions
Boiler Breakdown Greenwich: frequently asked
How quickly can you attend a boiler breakdown in Greenwich?
We offer same-day boiler breakdown response across Greenwich including Greenwich, Woolwich, Eltham. Our engineer is dispatched with common spare parts for all major brands to maximise the chance of a first-time fix.
How much does boiler breakdown repair cost in Greenwich?
Boiler breakdown repair in Greenwich starts from £150 per call-out. Most repairs are completed for £150–£450 including parts. The full price is confirmed before any work begins — no hidden charges.
What boiler brands do you repair in Greenwich?
We repair all major boiler brands across Greenwich including Vaillant, Worcester Bosch, Baxi, Ideal, Glow-Worm, Potterton and Viessmann. Our engineers carry common parts for all these brands on every call-out.
Is it worth repairing my boiler in Greenwich or should I replace it?
We give an honest assessment at every call-out. Boilers under 10 years old are usually worth repairing. If your boiler is over 15 years old and has multiple recurring faults, replacement is often better value in the long run. We will never push an unnecessary repair or replacement.