Compare New Boiler Quotes — 3 Free, No-Obligation Quotes
A new boiler in the UK typically costs £2,000–£3,500 supplied and fitted — a like-for-like combi swap starts around £1,800, while a full system change can reach £4,500. Tell us about your job and we’ll match you with up to 3 heating engineers near you — compare new boiler quotes side by side and pick the best value. 100% free, no obligation.
How to get the best new boiler quotes
- Get three quotes from Gas Safe registered engineers — always check the register.
- Compare the boiler brand, kW output and warranty (some come with 10-year guarantees), not just price.
- Ask whether a system flush, new controls and a magnetic filter are included — they affect longevity.
What to check before you book
Always get the quote in writing with a clear scope, and confirm the engineers is insured and offers a workmanship guarantee. Read recent customer reviews, check the quotes cover the same specification, and never pay a large deposit up front — tie payments to completed stages.
Typical new boiler cost
A new boiler in the UK typically costs £2,000–£3,500 supplied and fitted — a like-for-like combi swap starts around £1,800, while a full system change can reach £4,500.
| Option | Typical UK price (2026) |
|---|---|
| Combi swap (like-for-like) | £1,800–£2,800 |
| System / regular boiler | £2,300–£3,500 |
| Conversion to combi | £3,000–£4,500 |
| Boiler + full system flush | add £300–£600 |
Prices vary by spec, region and access. For the full breakdown see our new boiler cost guide.
New Boiler quotes — FAQs
How much does a new boiler cost in the UK?
Usually £2,000–£3,500 supplied and fitted; a like-for-like combi swap can start around £1,800. See the boiler replacement cost guide for detail.
How many boiler quotes should I get?
Three from Gas Safe engineers, compared on brand, output and warranty. All quotes through BestBuilders are free and no-obligation.
Are your heating engineers Gas Safe registered?
We match you with local heating engineers; Gas Safe registration is a legal requirement for boiler work, so check each engineer on the register.
Ready to start? Get your 3 free new boiler quotes → Or explore new boiler services and find trusted Gas Safe heating engineers near you.