🔥HVAC
How Much Does Boiler Installation Cost in 2025?
Average cost in United Kingdom
£2,000 - £3,500
Typical average: £2,750
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Boiler Installation Cost by Country
| Country | Low | Average | High |
|---|---|---|---|
| 🇬🇧United Kingdom | £2,000 | £2,750 | £3,500 |
| 🇺🇸United States | $3,000 | $5,000 | $7,000 |
| 🇦🇺Australia | A$3,500 | A$5,000 | A$7,000 |
| 🇨🇦Canada | C$3,500 | C$5,500 | C$7,500 |
Boiler Installation Cost Breakdown
| Item | 🇬🇧 UK | 🇺🇸 US |
|---|---|---|
| Combi boiler (supply) | £800-1,500 | $1,500-3,000 |
| Installation labor | £500-1,000 | $1,000-2,000 |
| Flue and fittings | £100-300 | $200-500 |
| System flush | £300-500 | $400-700 |
| Relocation (if needed) | +£300-800 | +$500-1,500 |
What Affects Boiler Installation Cost?
Boiler type (combi, system, regular)
Boiler brand and efficiency rating
Complexity of installation
Location change (adds cost)
Flue and pipework requirements
Frequently Asked Questions
Combi boilers are most popular for small-medium homes (no hot water tank needed). System boilers suit larger homes with multiple bathrooms. Regular boilers work with existing cylinder systems.
A straightforward like-for-like replacement takes 1 day. Moving the boiler location or changing boiler type can take 2-3 days.
Most quality boilers come with 5-10 year warranties. Extended warranties often require annual servicing.
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