Pilot Light Keeps Going Out
Pilot Light Keeps Going Out
Pilot light keeps going out? On older Kingston upon Thames and South West London boilers that usually means a failing thermocouple, a draught or a gas supply issue — all things we diagnose safely.
About this service
Pilot Light Keeps Going Out in South West London, done properly the first time
A standing pilot that will not stay lit points to a worn thermocouple that is no longer holding the gas valve open, a dirty or partially blocked pilot jet, a draught reaching the pilot through a flue or ventilation problem, or low gas pressure at the appliance.
Flue and ventilation faults matter here: anything that disturbs the burner can also affect safe combustion, which is why this is not a job to keep relighting and ignoring.
We test gas pressure, inspect the flue, clean or replace the pilot assembly and thermocouple, and carry out a combustion and safety check before we leave.

Why Maxfix
Why choose Maxfix for pilot light keeps going out
Premium workmanship, fixed pricing and a service experience built around you.
Gas Safe registered diagnosis and repair
Thermocouple and pilot assembly replacement
Flue and ventilation checked
Gas pressure and combustion tested
Straight advice on ageing appliances
Fixed price before any work
How it works
A calm, four-step process
From the first call to a tidy handover — no surprises, no jargon, no mess.
Get in touch
Call us or send a quick enquiry — we'll respond within an hour during working hours.
Free survey & quote
An engineer assesses the work and gives you a clear, written, fixed-price quote.
Book a date that suits you
Choose a slot that fits around your schedule — we work evenings and weekends.
Work completed cleanly
Uniformed engineers carry out the work, tidy up fully and walk you through everything before leaving.
Get a fast quote for pilot light keeps going out
Free, no-obligation quotes. Most calls answered within 30 seconds.

Trusted experts
Why choose Maxfix
Gas Safe Registered
Every engineer registered & ID-checked
Manufacturer Accredited [to be confirmed]
[accreditations to be confirmed]
Open 24 Hours, Every Day
Call any time — including nights and weekends
Fixed Price, Always
Agreed before we start — no hourly creep
Frequently asked
Your questions, answered
Is a pilot light going out dangerous?
The safety cut-off doing its job is not dangerous in itself, but the underlying cause can involve the flue or combustion, so it needs checking rather than repeated relighting.
Can the thermocouple be replaced?
Yes, on most older appliances it is a routine part. Availability on very old boilers can be the limiting factor.
Should I replace an old pilot-light boiler?
If parts are getting scarce and efficiency is poor, replacement often makes more financial sense. We will give you both options with no pressure.
Are your pilot light keeps going out engineers Gas Safe registered?
Yes — every engineer working on pilot light keeps going out in South West London is Gas Safe registered, manufacturer-trained and fully insured to £5m public liability. We'll show our ID on arrival.
Which areas of South West London do you cover for pilot light keeps going out?
We provide pilot light keeps going out across the whole of South West London, including Kingston upon Thames, Richmond, Wimbledon, Twickenham, Surbiton, Fulham, Putney, Teddington, New Malden, Molesey, Hounslow, Brentford, Isleworth, Long Ditton, Worcester Park, Roehampton, Raynes Park, Morden, Petersham, Motspur Park and the surrounding KT, TW and SW postcodes. Local engineers means short call-out times wherever you are.
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Free quotes, fixed pricing and Gas Safe engineers across Kingston upon Thames, Richmond, Wimbledon, Twickenham and the rest of South West London.
