UK prices 2025�26
How Much Does a Combi Boiler Cost?
UK combi boiler prices by brand, output, and installation. The UK\u2019s most popular boiler type.
Combi Boiler Prices (Supply + Install)
| Output | Budget | Mid-Range | Premium | Best For |
|---|---|---|---|---|
| 24-27kW | \u00a31,400\u20131,800 | \u00a31,800\u20132,300 | \u00a32,300\u20133,000 | 1-2 bed flat, 1 bathroom |
| 28-32kW | \u00a31,600\u20132,000 | \u00a32,000\u20132,700 | \u00a32,700\u20133,500 | 2-3 bed house, 1 bathroom |
| 35-40kW | \u00a31,800\u20132,300 | \u00a32,300\u20133,200 | \u00a33,200\u20134,200 | 3-4 bed house, 2 bathrooms |
70% of UK boiler installations are combis. No hot water cylinder or cold water tank needed \u2014 saves space and simplifies the system.