What affects the cost?
Boiler type, output, controls, flue position and whether the system needs alterations affect installation cost.
- Combi, system or regular boiler
- Boiler output
- Flue and condensate route
- Moving the boiler
- Controls and thermostats
- System cleaning or upgrades
Typical cost breakdown
Regional planning examples
The examples below apply our published modelling factor to the same national benchmark. They are not claimed as observed city-wide average quotes.
Sources used for this guide
New Boiler Costs in 2026: Prices & Installation
Published / checked: March 2026
Used for: Combi, system and conventional boiler supply-and-install benchmarks
Moving a Boiler: Cost Breakdown 2026
Published / checked: June 2026
Used for: Boiler relocation, controls, filters and pipework allowances
Frequently asked questions
Does moving a boiler increase the cost?
Usually. A new location may require extra pipework, flue work, condensate drainage and making good.
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