Find a Boiler Engineer in Cardiff
Find trusted boiler engineer professionals in Cardiff. TradeMatch connects you with vetted, insured local tradespeople. Average boiler engineer cost in Cardiff: £200–£2,500. Compare up to 5 free quotes with escrow payment protection.
Compare free quotes from vetted tradespeople in the CF postcode area. Typical cost: £200–£2,500.
Quick answer
What does a boiler engineer do, and how much do they cost in the UK?
A boiler engineer installs, services and repairs gas, oil and electric boilers under Gas Safe Register rules. UK 2026 prices: from £1,100 for a combi swap, £1,500–£3,500 for a system boiler, £100–£250 for an emergency callout. All gas work is notifiable and must be carried out by a Gas Safe-registered engineer.
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Boiler engineer vs plumber vs gas engineer — who do you actually need?
| Job | Boiler engineer | Gas engineer | Plumber |
|---|---|---|---|
| New combi/system boiler install | ✅ Recommended | ✅ Allowed | ❌ Not legal |
| Annual gas-boiler service | ✅ Recommended | ✅ Allowed | ❌ Not legal |
| Radiator replacement (no gas work) | ✅ OK | ✅ OK | ✅ Recommended |
| Leaking pipe / cold radiator | ✅ OK | ✅ OK | ✅ Recommended |
| Powerflush | ✅ Recommended | ✅ Allowed | ⚠️ Some |
All gas work in the UK must be carried out by a Gas Safe-registered engineer. Plumbers can legally only handle non-gas-side work.
Average Boiler Engineer Costs in Cardiff
Below are typical prices for common boiler engineer jobs in Cardiff. Prices may vary depending on the complexity of work, materials used and access to your property. Overall typical cost range: £200–£2,500.
| Job Description | Low | Average | High |
|---|---|---|---|
| Small job | £80 | £200 | £400 |
| Medium job | £300 | £700 | £1,500 |
| Large job | £1,000 | £2,500 | £5,000 |
| Consultation/survey | £50 | £100 | £250 |
| Emergency callout | £80 | £150 | £300 |
Prices shown are estimated UK averages for 2026 and may differ in Cardiff. Get an accurate quote by posting your job on TradeMatch.
How do you hire a Boiler Engineer in Cardiff?
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Boiler Engineer terms explained — Cardiff glossary
- Gas Safe Register(GSR)
- The official UK register of engineers qualified to work on gas appliances. By law, anyone installing or servicing a gas boiler in the UK must be on the register.
- Boiler Upgrade Scheme(BUS)
- A government grant of up to £7,500 toward replacing a fossil-fuel boiler with a heat pump. Application is made by your installer, not directly.
- Benchmark Certificate(Benchmark)
- The commissioning record completed by your engineer when a new boiler is installed. Required for warranty claims and for sale of the property.
- Powerflush(PF)
- A chemical clean of the heating system that removes sludge and corrosion. Often needed before fitting a new boiler to a system over 10 years old.
Boiler Engineer in Cardiff — FAQ
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Boiler Engineer Reviews in Cardiff
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