Boiler Flue Replacement Cost Calculator 2025

Need to replace your boiler flue but not sure about the costs? Whether you’re looking at a straightforward horizontal replacement or thinking about going vertical, working out the prices can be about as clear as the gases your flue needs to get rid of! From different lengths to various complexities, and all those extra bits like scaffolding and brickwork repairs, there’s quite a bit to consider.

But don’t worry – we’ve put together this handy calculator to help you figure out what you’re looking at price-wise. Just tell us what type of flue you need, how long it needs to be, and whether you need any extras like extension kits or additional bends. We’ll crunch the numbers and even give you some important safety tips. Better than getting steamed up about unexpected costs!

Boiler Flue Replacement Cost Calculator

Get an instant estimate for your boiler flue installation

Estimated Total Cost

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*This calculator provides an estimate based on average UK prices from January 2025. Your actual costs may vary depending on your location, specific requirements, and chosen contractor. All flue installations must be carried out by a Gas Safe registered engineer.

Get A Quote

Now that you know how much the job should cost, feel free to use our quote system below where you will receive 4 quotes from trusted tradesmen in your area.