Emergency Heating Engineer Cost in 2026 (UK)
An emergency heating engineer typically costs £100–£180 for the first hour in 2026, with out-of-hours, weekend and bank-holiday call-outs starting around £150 before parts. Most breakdowns — a failed pump, a stuck diverter valve, a lockout on the PCB — are fixed in one visit, so the total is usually the call-out plus one or two parts. Here is what an emergency visit costs in 2026, the common repairs and their prices, and how a service plan can save you money.
2026 emergency heating engineer cost breakdown
| Item | Typical price (2026) | Notes |
|---|---|---|
| Standard call-out (first hour) | £100–£180 | Daytime, weekday |
| Out-of-hours / weekend call-out | £150–£300 | Evenings, weekends, holidays |
| Additional labour (per hour) | £60–£100 | After the first hour |
| Replace circulating pump | £250–£400 | Parts + labour |
| Replace diverter valve | £250–£450 | Common combi fault |
| Replace PCB (control board) | £300–£600 | Model-dependent |
| Fix a leak / re-pressurise system | £90–£200 | If no major part needed |
What you actually pay for
An emergency bill is usually the call-out (which includes the first hour) plus any parts and extra labour. Because most heating faults are diagnosed and fixed in a single visit, the realistic total for a typical breakdown is £150–£450. Big-ticket parts like a PCB or heat exchanger push it higher, at which point it is worth weighing repair against replacement on an older boiler.
How to keep the cost down
- Try the basics first: check the pressure gauge, the thermostat and the fuse before calling out — a re-pressurise you can do yourself is free.
- Book in-hours if it is safe to wait: a weekday daytime visit avoids the out-of-hours premium.
- Get the part price up front: ask for the parts cost before authorising, and whether a repair is worth it on an old boiler.
- Consider a service plan or cover: an annual plan spreads the cost and often includes call-outs.
Repair or replace?
If your boiler is over 10–12 years old and the emergency repair runs into several hundred pounds, a new boiler may be the better spend — modern units are more efficient and come with a long warranty. For a newer boiler, a one-off repair is almost always the cheaper route.
FAQs
Related guides
Get 3 Free Heating Quotes — Gas Safe Engineers
BestBuilders matches you with up to 3 Gas Safe registered heating engineers. Compare quotes for repairs and replacements — no cost, no obligation.