Boiler service in London
Of everything you can spend on a boiler, an annual service is the cheapest and does the most good. It picks up the parts that are wearing out before they leave you without heating in January, and most manufacturers make it a condition of the warranty — a service that gets skipped is one of the most common reasons a warranty claim ends up refused.
- Gas Safe registered and fully insured
- DBS-checked engineers
- Emergency callout available 24/7
- Price agreed before work starts
- Workmanship guaranteed
Monday – Sunday, 7:00 AM – 10:00 PM · Out-of-hours emergency? Call 020 3576 5825
Get a price for boiler service
Three details get an engineer moving. The rest is optional.
Thanks — we’ve got it
We’ll come back to you on the number you gave us. If it’s urgent and you’d rather not wait, call 020 3576 5825.
What this includes
- Annual boiler service and safety check
- Combustion analysis and flue check
- Cleaning and component inspection
- Seals, pressures and controls checked
- Servicing to keep manufacturer warranties valid
- Service records for landlords and managing agents
Worth knowing first
A little of this might mean you do not need to call us at all — we would still rather you knew it.
Book it before the cold, not during it
Boiler problems have a habit of showing up on the first properly cold week of the year — which, unhelpfully, is exactly when engineers across London are hardest to get hold of. Book with Ninja Plumbers in late summer or early autumn instead. It costs the same and you will get an appointment far more easily than in the middle of a cold snap.
A service is not the same as a repair
A service is an inspection and clean. If it finds a failed part, replacing that part is separate work and we will price it before doing anything. Nobody should be presenting you with a bill you did not agree to.
Keep the paperwork
Manufacturers ask for evidence of annual servicing when a warranty claim is made. Keep the record somewhere you can find it — the difference between a free repair and a paid one can be a piece of paper.
What a service will not tell you
A service checks the boiler, not the whole system. If your radiators are cold at the bottom or the system is full of sludge, that is a separate problem and needs a flush rather than a service.
What affects the price
A boiler service is a set list of checks, but it does not take the same time on every boiler. The model, how well it has been looked after and where it lives all change how long the engineer needs.
The make and model
Some boilers open up in minutes. Others need more taken apart before the burner and heat exchanger can be inspected, and certain manufacturers specify that a seal or gasket is renewed whenever the combustion chamber is opened. The service follows whatever that boiler’s instructions require.
How long since the last one
A boiler serviced every year is usually a clean, routine visit. One that has gone several winters without attention tends to need more work: a clogged condensate trap, a fouled burner, debris in the heat exchanger. That extra cleaning takes time, and it shows in the price.
Getting to the boiler
A boiler on a kitchen wall is simple. One in a loft without boards or a proper ladder, squeezed into an airing cupboard, or boxed behind fitted units that have to come off first takes longer to service safely. Tell us where yours is when you book.
Adding other gas checks
If you also want the hob or a gas fire looked at, or you are a landlord who needs a gas safety certificate, doing it on the same visit is usually better value than booking separate appointments. Mention it when you book so enough time is allowed.
The price is agreed before any work starts. We take card and cash.
Common questions
How often should a boiler be serviced?
Once a year. Most manufacturer warranties require it, and a service that has been skipped is a common reason a warranty claim gets refused.
How long does a boiler service take?
For a straightforward domestic boiler, budget under an hour. It can run longer if something needs a closer look — we would rather spend the extra twenty minutes than sign off a boiler that is not actually right.
What is the difference between a service and a repair?
A service is a scheduled inspection and clean. A repair fixes a specific fault. If a service turns up a failed part, we price that separately and get your agreement before replacing it.
Do you service boilers you did not install?
Yes. It makes no difference to us who fitted it.
Is a boiler service the same as a gas safety certificate?
No, though the two are easy to confuse. A gas safety check is the legal annual check landlords need, covering every gas appliance, flue and the pipework, and it produces the certificate tenants must be given. A service is maintenance on the boiler itself: opening it up, cleaning it and checking it runs as it should. Many landlords book both on one visit; a homeowner living in the property generally only needs the service.
Is there anything I should do before the engineer arrives?
Clear the space in front of the boiler and around it, including anything stacked in the cupboard, and make sure the loft hatch and ladder are usable if that is where it lives. Have the last service record to hand if you can find it. And make a note of anything odd — noises, a pressure that drifts, radiators slow to warm — because the service is the right moment to mention it.
Boiler service near you
Local pages for the areas where this comes up most.
- Boiler service in Ealing
- Boiler service in Croydon
- Boiler service in Bromley
- Boiler service in Harrow
- Boiler service in Wimbledon
- Boiler service in Greenwich
- Boiler service in Lewisham
- Boiler service in Wandsworth
- Boiler service in Brixton
- Boiler service in Islington
- Boiler service in Walthamstow
- Boiler service in Streatham
- Boiler service in Tooting
- Boiler service in Acton
Related appliance work
These installations sit under this service, and each has its own page covering what is involved.
-
Water Softener Installation
London water is hard, and it costs you slowly. Softeners sized, fitted and serviced.
More on water softener installation -
Underfloor Heating
Wet underfloor heating for extensions and refurbishments, plus repairs to loops that have stopped working.
More on underfloor heating -
Radiators & Power Flushing
Radiators fitted and moved, and sludged systems flushed properly rather than topped up with chemicals.
More on radiators & power flushing -
Water Filtration & Limescale
Filters, scale reducers and drinking water taps — and a straight answer about which one solves your problem.
More on water filtration & limescale -
Hot Water Cylinders
Cylinders replaced, sized and serviced — the tank in the airing cupboard that everyone forgets until it fails.
More on hot water cylinders
More heating work we take on
-
Boiler Repair
No heat, no hot water, or a boiler locked out on a fault code. Diagnosed first, then fixed.
More on Boiler Repair -
Boiler Installation
A new boiler sized for the property, fitted properly, with the price agreed first.
More on Boiler Installation -
Boiler Replacement
Replacing a boiler that has reached the end, with a straight answer on whether it has.
More on Boiler Replacement -
Central Heating Installation
The whole system — boiler, pipework, radiators and controls — rather than a new boiler on its own.
More on Central Heating Installation
Looking for a specific make?
Every brand gets its own page on what is typical of it and the faults that tend to come up on that make.
Need boiler service in London?
Describe the problem and give us your area, and we’ll tell you the price before anyone starts work.