Our expert Boiler Services London team provides comprehensive boiler servicing and maintenance across all London and M25 areas. A boiler service is a combination of visual checks and practical tests that a Gas Safe registered engineer carries out on the boiler to keep it working efficiently throughout the year. Getting your boiler serviced annually is much better than spending money on costly repairs after 3 or 4 years.
Below is the list of checks we perform:
Visual checks of the boiler condition and flame
Checks on internal and external flue
Checking the working pressure and input heat
Checks on safety devices
Check on the seal of case for an efficient seal
Remove boiler casing to check all major parts
Boiler parts cleaned if required
Report showing all work done by engineer
Boiler Service Only
Boiler Service + Gas Safety Certificate (CP12)
As part of our Boiler Services London, below is the full list of checks our Gas Safe registered engineers perform during every boiler service:
We have partnered with qualified and insured engineers who are registered with:
Our Boiler Services London engineers diagnose and resolve all common boiler problems. Below are the most frequent issues we encounter:
1. Boiler Condensing Pipe Freezing
It is normal for a condensate pipe to freeze in cold weather. Once frozen, your boiler shuts down automatically for safety. Before calling an engineer, check the condensate pipe. If frozen, you can defrost it yourself. Make sure your condensate pipe is insulated correctly with foam to prevent freezing.
2. Boiler Pressure Decreasing
Common reasons for pressure loss:
Try to regain pressure by opening the filling loop taps on your boiler. Once you reach required pressure (normally one bar), close the taps. If this doesn’t work, call a Gas Safe registered engineer.
3. Boiler Water Leakage
Old and worn washers can cause water leakage from the boiler. Do not try to replace washers yourself. Always call a competent person to do it. Our expert Boiler Services London team is available to help with all boiler repairs and maintenance.
What London landlords and homeowners ask us before booking an annual boiler service.
Why It Matters
An annual service keeps your boiler running efficiently, catches small faults before they become expensive repairs, and is often a condition of keeping the manufacturer's warranty valid.
Many manufacturers require proof of an annual service to keep the warranty active — check your specific boiler's terms, and we'll provide a full report you can keep on file as evidence.
Yes, our Gas Safe registered engineers service all major combi, system and conventional boiler brands, including Worcester Bosch and Vaillant.
The Service
We carry out a visual check of the boiler and flame, inspect the internal and external flue, check working pressure and heat input, test all safety devices, check the case seal, and remove the casing to inspect and clean major parts where needed — finishing with a full written report.
Most services take under an hour, though this can vary slightly depending on the boiler's age and condition.
Pricing & Booking
A boiler service alone is £100. You can bundle it with a Gas Safety Certificate (CP12) for £139, saving £20–£30 compared to booking them separately.
Yes, it's a flat rate across all of London and the M25 area, with no hidden call-out fees.
Yes, subject to engineer availability, and pricing is fixed and confirmed at the time of booking.
Yes, we service boilers across all 32 London boroughs and the surrounding M25 corridor.
Our team is available Monday–Friday 8am–7:30pm and Saturday 8am–1:30pm. Call us or book directly online — same-day slots available.
