Immersion Heater Repairs
Immersion Heater Repairs
When an immersion heater stops producing hot water it's usually the thermostat or a scaled-up element — both replaceable without changing the cylinder.
About this service
Immersion Heater Repairs in South West London, done properly the first time
We test the element and thermostat, drain the cylinder where needed and fit a replacement immersion heater sized correctly for your cylinder, including the longer elements used in taller unvented tanks.
In South West London's hard water, elements scale up and burn out faster than average, so we also check the thermostat setting — running above 60-65°C dramatically shortens element life. We work on both vented and unvented cylinders across Kingston upon Thames and the surrounding areas.
Why Maxfix
Why choose Maxfix for immersion heater repairs
Premium workmanship, fixed pricing and a service experience built around you.
Element and thermostat tested before replacement
Correct element length for your cylinder
Hard-water scaling checked and advised on
Vented and unvented cylinders covered
Hot water restored the same visit in most cases
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 immersion heater repairs
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
Why has my immersion heater stopped working?
Most often a failed thermostat or a scaled, burnt-out element. We test both rather than replacing blind.
Is it worth replacing or should I get a new cylinder?
If the cylinder is sound, a new element is far cheaper. We'll tell you honestly if the cylinder itself is on its way out.
What temperature should I set it to?
60-65°C — hot enough for safety against legionella, low enough to slow scaling in hard water.
Can you fit a backup immersion to my cylinder?
If the cylinder has a spare boss, yes — useful as a backup if your boiler fails in winter.
Which areas of South West London do you cover for immersion heater repairs?
We provide immersion heater repairs 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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Ready when you are
Book immersion heater repairs with a Gas Safe engineer — fixed pricing, open 24 hours.
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Book immersion heater repairs today
Free quotes, fixed pricing and Gas Safe engineers across Kingston upon Thames, Richmond, Wimbledon, Twickenham and the rest of South West London.