New Boiler Cost by Brand UK 2026

New boiler cost varies by brand. In 2026, Worcester Bosch and Vaillant lead the premium mid-market; Ideal and Baxi offer good value. Most UK homes pay £2,100–£3,500 fitted.

Quick answer

Typical UK price range: £2,100–£5,000. Typical time: 1–2 days.

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Boiler replacement calculator

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Boiler type Combi (like-for-like) System boiler Heat-only / conventional Combi with move

Region London South East South West Midlands North of England Scotland Wales Northern Ireland

Specification level Basic / standard Mid-range Premium / high-end

Extras

System power flush £350–£700 Magnetic filter £100–£200 Smart thermostat £200–£400 New TRVs (all rads) £250–£600 Flue extension £150–£350

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Estimate only. Prices reflect 2026 UK market data — get quotes from local tradespeople for accurate pricing.

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Budget Under £5,000 £5,000 – £15,000 £15,000 – £30,000 £30,000 – £60,000 £60,000+ Not sure

Timeline As soon as possible 1 – 3 months 3 – 6 months 6+ months Just researching

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Key points

• Worcester Bosch: £2,400–£3,800 (best UK service network)
• Vaillant: £2,400–£3,800 (longest warranties)
• Ideal: £2,100–£3,200 (good value)
• Baxi: £2,100–£3,200 (good value)

Cost breakdown

Item	Low	High
Worcester Bosch 24 kW combi	£2,400	£3,800
Vaillant ecoTEC 28 kW combi	£2,400	£3,800
Ideal Logic+ 30 kW combi	£2,100	£3,200
Baxi 800 combi	£2,100	£3,200
Viessmann Vitodens 100	£2,500	£4,000

Cost by UK region

Region	Typical cost
London	£4,792
South East	£4,437
South West	£3,905
Midlands	£3,550
North England	£3,195
Scotland	£3,372
Wales	£3,195

How to save money

• Choose 10-year warranty boilers — usually only £100–£200 more
• Worcester has the strongest UK service network
• Vaillant offers the longest warranties (12 year possible)

How to find a trusted tradesperson

Get at least 3 quotes from vetted UK trade networks:

• Checkatrade
• MyBuilder
• Bark

FAQs

Which is the most reliable boiler brand?

Which? consistently rates Worcester Bosch, Vaillant and Viessmann in the top three for reliability.

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Disclaimer: Prices are guide ranges based on 2026 UK market data. Get quotes from local tradespeople for accurate pricing.