Heating & Boilers Costs in the UK (2026)
Complete cost guide to heating & boilers services across the UK. Click any service to see how prices vary in your city.
Boiler Replacement
£1,800 – £3,500
per boiler installed · 1–2 days
Boiler Service
£80 – £150
per annual service · 45–90 minutes
Underfloor Heating Installation
£75 – £200
per m² · 2–5 days for a typical room
Radiator Replacement
£150 – £450
per radiator · 1–3 hours per radiator
Power Flush
£400 – £900
per system · 4–8 hours
Air Source Heat Pump Installation
£8,000 – £16,000
per system installed · 3–7 days
Gas Safety Certificate (CP12)
£60 – £120
per certificate · 30–60 minutes
Smart Thermostat Installation
£150 – £400
per thermostat · 1–3 hours
Full Central Heating Installation
£3,500 – £8,000
per system · 3–7 days
Immersion Heater Replacement
£180 – £380
per element · 1–2 hours
Hot Water Cylinder Replacement
£900 – £2,200
per cylinder · 1 day
Gas Fire Installation
£400 – £1,200
per fire · 1 day
Chimney Sweep
£55 – £120
per chimney · 45–90 minutes
Wood Burner Installation
£1,800 – £4,500
per stove · 1–3 days
Oil Boiler Installation
£2,500 – £5,500
per boiler · 1–2 days