New boiler installations
A new boiler, fitted right and guaranteed
CAF Heating installs new boilers across Horley, Surrey and South London. As a Vaillant Approved Installer, our Gas Safe registered engineers survey your home, give you a clear fixed quote, then fit and commission your new boiler - usually in a day - with a manufacturer-backed guarantee and a clean, tidy handover.
Accredited & registered - 30 years on the tools
Which? Trusted Trader - assessment in progressWhat's included
Honest, fixed quote
A clear written quote after survey - no surprises on the day.
Quality brands
Vaillant and other leading boilers, sized correctly for your home.
Manufacturer guarantee
Approved-installer status unlocks extended manufacturer warranties.
Clean install
We protect your home, fit tidily, and take the old boiler away.
Fitting a new boiler? Protect it from day one. Ask about a Dualflo water softener fitted on the same visit, from £995.
See our water softeners →How it works
Survey & quote
We assess your home and send a clear, fixed written quote.
Installation day
We fit your new boiler, usually in a day, protecting your home throughout.
Commission & handover
We commission the boiler, register the warranty, and show you how it works.
New Boiler Installations across South London & Surrey
See all areas →- New Boiler Installations in Bexley →
- New Boiler Installations in Bromley →
- New Boiler Installations in Greenwich →
- New Boiler Installations in Lewisham →
- New Boiler Installations in Southwark →
- New Boiler Installations in Croydon →
- New Boiler Installations in Kingston upon Thames →
- New Boiler Installations in Lambeth →
- New Boiler Installations in Merton →
- New Boiler Installations in Richmond upon Thames →
- New Boiler Installations in Sutton →
- New Boiler Installations in Wandsworth →
- New Boiler Installations in Horley →
- New Boiler Installations in Reigate →
- New Boiler Installations in Redhill →
- New Boiler Installations in Crawley →
- New Boiler Installations in Caterham →
- New Boiler Installations in Dorking →
- New Boiler Installations in Epsom →
Guides & advice
All guides →Get a free quote
Send a few details and we'll be in touch quickly. Prefer to talk? Call 07956 876156.
Frequently asked questions
How long does it take to install a new boiler?
A straightforward boiler replacement is usually completed in a day. More involved jobs, such as moving the boiler or upgrading the system, can take longer - we confirm the timescale in your quote.
How much does a new boiler cost?
The cost depends on the boiler you choose and your home's system. We give you a clear, fixed written quote after a survey, so there are no surprises on the day.
What boiler guarantee do you offer?
As a Vaillant Approved Installer we can register extended manufacturer warranties on new installations, giving you longer cover than a standard fit. We confirm the exact guarantee with your quote.
Do you remove the old boiler?
Yes. We protect your home throughout, fit the new boiler tidily, and take the old boiler away as part of the installation.
Why choose a Vaillant Approved Installer?
Vaillant Approved Installer status means we are accredited to fit and register Vaillant boilers, which unlocks extended manufacturer warranties you cannot get from a non-approved fitter.
Will you help me choose the right boiler?
Yes. We survey your home and recommend a correctly sized boiler for your property and hot water needs, rather than selling you more than you need.
What our customers say
A sample of feedback from homeowners and landlords we've worked for across South London and Surrey.
“Burst pipe at 8pm and they were out within the hour. Professional, tidy and fair on price. Saved us from a flooded kitchen.”
“New Vaillant boiler fitted in a day. Clear quote, no surprises, and they walked us through everything at handover.”
“I manage 12 properties and CAF handles every gas certificate. Reminders before they expire and the cert in my inbox the same day. Faultless.”