Annual boiler servicing

Keep your boiler safe, efficient and under warranty

CAF Heating carries out annual boiler servicing across Horley, Surrey and South London. Our Gas Safe registered engineers check, clean and test your boiler against the manufacturer's spec, protecting your warranty and catching small faults before they become expensive breakdowns. Most services take under an hour.

Gas Safe Registered
Simon Fuller working on an open boiler

Accredited & registered - 30 years on the tools

Gas Safe RegisterVaillant Approved InstallerWhich? Trusted Trader - assessment in progress

What's included

Full safety inspection

Combustion, seals, and controls checked against manufacturer spec.

Clean & efficiency check

We clean key components and confirm the boiler runs efficiently.

Warranty protection

A logged annual service keeps most manufacturer warranties valid.

Honest advice

If something needs attention we tell you straight - no upselling.

Limescale is the most common thing we find inside boilers across Surrey and South London. A Dualflo water softener stops it forming in the first place.

See our water softeners

How it works

01

Book a slot

Pick a time that suits - we confirm by phone or text.

02

We service

A Gas Safe engineer carries out the full service, usually under an hour.

03

You're covered

We log the service and remind you again in 12 months.

Book a boiler service

Send a few details and we'll be in touch quickly. Prefer to talk? Call 07956 876156.

We aim to respond within one working hour. For emergencies, please call.

Frequently asked questions

How much does a boiler service cost?

An annual boiler service starts at £85. Combined with a landlord gas safety certificate it is £155, and our service agreement covering an annual service and priority call-out is £240 a year.

How long does a boiler service take?

Most boiler services take under an hour. A Gas Safe engineer inspects, cleans and tests the boiler, then confirms it is running safely and efficiently.

How often should a boiler be serviced?

A boiler should be serviced once a year. An annual service keeps it safe and efficient, and most manufacturers require a logged yearly service to keep the warranty valid.

Does a boiler service keep my warranty valid?

Yes. Most manufacturer warranties require proof of an annual service. We log every service so your warranty stays valid.

What happens during a boiler service?

We check combustion, seals and controls against the manufacturer spec, clean the key components, and confirm the boiler is running efficiently. If anything needs attention we tell you straight.

Do you service all boiler brands?

Yes. Our Gas Safe registered engineers service all major boiler brands. As a Vaillant Approved Installer we know Vaillant boilers especially well.

What our customers say

A sample of feedback from homeowners and landlords we've worked for across South London and Surrey.

See all reviews on Google →
★★★★★
Burst pipe at 8pm and they were out within the hour. Professional, tidy and fair on price. Saved us from a flooded kitchen.
Sarah M. · March 2026
★★★★★
New Vaillant boiler fitted in a day. Clear quote, no surprises, and they walked us through everything at handover.
David & Helen P. · February 2026
★★★★★
I manage 12 properties and CAF handles every gas certificate. Reminders before they expire and the cert in my inbox the same day. Faultless.
Raj K. (Landlord) · January 2026
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