Updated 25 September 2026
Boiler service cost UK 2026
The going rate for boiler service in 2026 is £80–£120 (total, ex VAT). Below: a calculator, what the job involves, materials at three price levels, and the prep that changes the price.
Market band£80–£120
Worked example, 1 boiler£95
Time on site2 h
Boiler service calculator
Price a real job freeUses your rates, your speed and your receipts.
Market band source: Trade2Base.
What the job involves
| Stage | Task | Typical time |
|---|---|---|
| work | Service, flue test and paperwork | 1.25 h per boiler |
What changes the price
- Fuel? gas · oil · LPG
Prep to look for
| Condition | Check | Effect |
|---|---|---|
| Low pressure | pressure gauge reading under 1 bar | Fault-find low pressure |
| Boiler age from badge | data badge or model label on the boiler | Check the boiler age on the badge: over 12–15 years, replace rather than repair |
| Sludge in the system | black water from a bleed valve, radiators cold at the bottom | Power flush the system |
Questions
How much does boiler service cost in the UK in 2026?
The researched market band is £80–£120 (total, ex VAT), from Trade2Base. A worked example of 1 boiler comes to about £95–£95 across budget, trade and premium materials.
How long does boiler service take?
The worked example of 1 boiler takes about 2 hours.
What changes the price of boiler service?
Mainly size and access, plus any prep found on site: low pressure, boiler age from badge, sludge in the system.