Boiler Flue Installation Cost
How much does a new boiler flue cost? Standard flues, extended flues, and vertical flue prices.
Typical cost£100 – £600
Boiler Flue Installation Costs
A standard horizontal flue is usually included in the boiler installation price. Extended or vertical flues cost extra — typically £100–£600 depending on length and complexity.
Types of Flue and Costs
- Standard horizontal flue (up to 1m): included in installation
- Extended horizontal flue (per extra metre): £50–£100
- Vertical flue kit: £200–£400
- Concentric flue for open flue systems: £150–£300
Related Cost Guides
Get a Quote
Use our calculator for an instant fixed price for your home.
Get My PriceSpeak to an ExpertPayment Options
Ask us about spreading the cost of your new boiler — we'll talk you through what's currently available.
See payment options →