Up-to-date heating & gas prices for 2026 — low, average and high UK rates for 7 common jobs, plus what affects the price and how to hire well.
Heating engineers keep your home warm and your energy bills under control: boiler servicing and replacement, radiator and smart thermostat installation, power flushing, underfloor heating and increasingly heat pump systems. With energy prices high, the efficiency of your heating system has never mattered more. HireTrades helps you find certified local heating engineers with verified track records.
| Service | Low | Average | High |
|---|---|---|---|
Gas safety certificate per certificate | £60 | 80 | £100 |
Install radiator per radiator | £200 | 300 | £400 |
Power flush central heating complete | £400 | 550 | £700 |
Install smart thermostat complete | £150 | 225 | £300 |
Repair gas cooker per repair | £80 | 140 | £200 |
Install gas fire complete | £500 | 850 | £1,200 |
Annual boiler service per service | £80 | 115 | £150 |
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An annual boiler service costs £70–£120. A like-for-like combi boiler replacement typically runs £1,800–£3,000 including the boiler, while converting from a system boiler to a combi costs £2,500–£4,500. Power flushing a system costs £300–£600 depending on the number of radiators. New radiators cost £150–£350 fitted. Air source heat pump installation typically ranges from £8,000–£15,000 before grants of up to £7,500 under the Boiler Upgrade Scheme.
Any work on a gas boiler legally requires a Gas Safe registered engineer — ask for the registration number and check it at the Gas Safe Register before work begins. For a boiler replacement, a good engineer will size the boiler to your home rather than simply matching the old one, and will discuss system cleanliness (flushing, magnetic filters) which protects your warranty. For heat pumps, look for MCS certification, which is also required to access government grants such as the Boiler Upgrade Scheme.
Heating engineers on HireTrades display verification badges and verified customer reviews, so competence and reliability are visible up front. Post your job free — include your boiler make, model and the problem — and compare quotes from certified local engineers.
In 2026, gas safety certificate typically costs between £60 and £100 (per certificate) in the UK, with an average of around £80. Prices in London and the South East tend to sit at the higher end. Get multiple quotes from verified local professionals on HireTrades to find the best price for your job.
In 2026, install radiator typically costs between £200 and £400 (per radiator) in the UK, with an average of around £300. Prices in London and the South East tend to sit at the higher end. Get multiple quotes from verified local professionals on HireTrades to find the best price for your job.
In 2026, power flush central heating typically costs between £400 and £700 (complete) in the UK, with an average of around £550. Prices in London and the South East tend to sit at the higher end. Get multiple quotes from verified local professionals on HireTrades to find the best price for your job.
In 2026, install smart thermostat typically costs between £150 and £300 (complete) in the UK, with an average of around £225. Prices in London and the South East tend to sit at the higher end. Get multiple quotes from verified local professionals on HireTrades to find the best price for your job.
Guides tell you the range — real quotes tell you your price. Post your job free and compare offers from verified local heating engineers.