The honest answer: a new boiler installation typically costs between £1,000 and £2,500 depending on the boiler type, brand, and your property. Here's a realistic breakdown.
Typical price ranges
- Budget combi boiler (e.g. Alpha, Ideal Logic): £999–£1,199 fitted
- Mid-range combi (e.g. Baxi 700, Worcester 4000): £1,199–£1,499 fitted
- Premium combi (e.g. Worcester 8000, Vaillant ecoTEC Plus): £1,499–£1,799 fitted
- System boiler + cylinder: £1,499–£2,200 fitted
- Oil boiler: £1,700–£2,500 fitted
What's included in the price?
A genuine fixed price should always include: boiler supply, installation, new flue, pipework connections, system flush, inhibitor, magnetic filter, Gas Safe certificate, and manufacturer warranty registration.
Watch out for quotes that exclude the flue, inhibitor dosing, or magnetic filter — these are essential components that add cost if not included upfront.
Can I spread the cost?
Yes — we offer 0% finance over 36 or 60 months. A £1,299 boiler on 36-month finance is around £36/month. There's no deposit required and the decision is instant.
Get your fixed, all-inclusive price in 2 minutes with our online calculator.