Boiler Replacement
Boiler Replacement
Old boiler costing you a fortune to run? Replace it with a high-efficiency A-rated unit and start saving on day one. Free survey, fixed quote, up to 12-year warranty.
About this service
Boiler Replacement in South West London, done properly the first time
If your boiler is over 10 years old, breaking down regularly, or struggling to heat the whole house, replacement is almost always cheaper in the long run than repeated repairs. Modern condensing boilers are around 30% more efficient than units from the early 2000s.
Our replacement service includes a full survey, removal and safe disposal of your old boiler, installation of your new unit, system flush, magnetic filter and a Benchmark commissioning certificate.
Why Maxfix
Why choose Maxfix for boiler replacement
Premium workmanship, fixed pricing and a service experience built around you.
Free in-home survey
Old boiler removed and disposed of
System flush included
Up to 12-year manufacturer warranty
Most jobs completed in one day
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 boiler replacement
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
Are your boiler replacement engineers Gas Safe registered?
Yes — every engineer working on boiler replacement in South West London is Gas Safe registered, manufacturer-trained and fully insured to £5m public liability. We'll show our ID on arrival.
Do you offer a free quote for boiler replacement?
Yes. We provide a free, no-obligation written quote with fixed pricing, so you know exactly what your boiler replacement will cost before any work starts.
How quickly can you attend for boiler replacement in South West London?
Most non-emergency boiler replacement appointments are booked within 2–3 working days across South West London. For genuine heating emergencies we aim to be on-site within 2 hours.
Do you guarantee your boiler replacement?
Yes — every boiler replacement job is covered by our 12-month workmanship guarantee, on top of any manufacturer warranty.
Which areas of South West London do you cover for boiler replacement?
We provide boiler replacement 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 boiler replacement with a Gas Safe engineer — fixed pricing, open 24 hours.
Ready to book?
Book boiler replacement today
Free quotes, fixed pricing and Gas Safe engineers across Kingston upon Thames, Richmond, Wimbledon, Twickenham and the rest of South West London.