What affects the cost?
A full central heating installation is more involved than simply replacing a boiler. Property size, radiator count, distribution pipework, controls and the amount of existing infrastructure all affect the total budget.
- Gas, oil or electric system
- Property size
- Number of radiators or heaters
- New distribution pipework
- Boiler and controls specification
- Existing heating infrastructure
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
Central Heating Installation Cost in the UK in 2026
Published / checked: Updated May 2026
Used for: Gas, oil and electric central-heating installation ranges plus common pipework allowances
Frequently asked questions
How much does central heating installation cost?
Current UK guidance places a full gas system around £5,250 on average, oil around £6,150 and electric around £3,790.
Is a full central heating installation the same as a boiler replacement?
No. A full installation can include radiators or heaters, distribution pipework, controls and other system components in addition to the heat source.
Related costs
Radiator replacement
UK radiator replacement costs for standard panels, vertical and column radiators, towel radiators, relocation and common pipework extras.
Around £200–£300 for many standard replacementsView guide →Cost guideNew boiler
Budget for a UK boiler replacement including the appliance, installation and common additional work.
£2,500–£5,500View guide →Cost guideAir source heat pump
Understand the main cost components of an air source heat pump installation in the UK.
£8,000–£16,000View guide →