A standard annual boiler service in the UK typically falls somewhere between £60 and £120. That’s a general guide, though — the actual price depends on things like the make and age of your boiler, how easy it is to access, and whether the engineer spots anything extra that needs attention while they’re there. The only way to know exactly what you’ll pay is to get a fixed quote before any work starts.
What’s included in a boiler service
A boiler service is a health check, not a repair job. A Gas Safe registered engineer will typically:
- Check the boiler casing is secure and undamaged
- Inspect the burner and heat exchanger for signs of wear or damage
- Check the flue and ventilation for safe operation
- Test the gas pressure and flow rate
- Check the ignition works properly and the flame burns correctly
- Test safety devices, including any that shut the boiler down automatically
- Check the condensate pipe (on modern condensing boilers) for blockages
- Carry out a visual inspection of pipework and seals
At the end, you should get a service record confirming what was checked — useful for warranty purposes and for landlords who need proof of an up-to-date gas safety check.
Typical UK price ranges by job type
These are general UK market guide prices, not what Eco Flow charges. They’re here to give you a rough sense of scale before you get a fixed quote.
| Job type | Typical UK price range |
|---|---|
| Annual boiler service | £60 – £120 |
| Boiler repair (call-out + parts) | £80 – £350+ |
| Landlord gas safety certificate (CP12) | £60 – £100 |
| New combi boiler installation | £1,800 – £3,500+ |
| Power flush | £300 – £600 |
Repair costs vary hugely because a lot depends on the fault. A stuck valve or a faulty sensor is a relatively small job. A failed heat exchanger or a boiler that’s simply reached the end of its life is a much bigger conversation, and sometimes replacement makes more sense than repair.
What affects the price
Several things can push a service or repair quote up or down:
- Boiler type — combi, system, and regular (heat-only) boilers all take slightly different amounts of time to service.
- Age and condition — older boilers or ones that haven’t been serviced in a while sometimes need extra time to clean components properly.
- Access — a boiler tucked in a loft or an awkward cupboard takes longer to reach than one in an open utility room.
- Location — labour rates vary across London and the South East, so Croydon prices won’t necessarily match prices in other parts of the country.
- Additional parts — if a service uncovers a worn part that needs replacing, that’s an extra cost on top of the basic service.
Why a fixed quote beats an hourly rate
Hourly rates sound simple, but they put the risk on you. If a job takes longer than expected — say, a stubborn valve or awkward pipework — the meter keeps running and you don’t find out the final bill until it’s over. A fixed quote flips that around: you agree the price before any work begins, based on what the engineer can see and what you’ve told them, so you know exactly what you’re paying regardless of how long the job actually takes on the day.
It also removes any temptation to rush a job to keep the bill down, or to pad it out. The price is agreed, so the focus stays on doing the job properly.
Getting a fixed price from Eco Flow
Every job Eco Flow quotes for comes with a fixed price agreed upfront, before any work starts. That applies whether it’s a routine annual service, a boiler repair, or a full installation. You’ll know the cost in advance, with no surprises on the invoice.
A boiler service is one of the cheapest ways to protect a much bigger investment. Catching a small issue early, at the cost of a routine service, is a lot less painful than dealing with a full breakdown in the middle of winter.