New build and renovation air conditioning in Chelsea
London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset. Renovations in Chelsea are the easiest jobs to make invisible, because the pipework goes in before the plaster.
First-fix pipework in Chelsea extensions goes in while the joists and studs are open. We cover Chelsea as part of London, roughly 2 miles from central London. We cover SW3 and SW10 and the streets around them.
Prices in Chelsea
Our London guide price for air conditioning for new builds and renovations is £495–£1,195 per indoor position (first fix), VAT included. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. As an example, the First and second fix option (complete install priced per room including units) would typically be £1,895–£3,895 here.
First fix only
Pipework and drains to each position for a later install.
First and second fix
Complete install priced per room including units.
Ducted design and build
Concealed ducted system designed into the build.
Guide prices show VAT at 20%. HMRC treats most fixed air conditioners and air-to-air heat pumps installed in homes as energy-saving materials, zero-rated until 31 March 2027 when we supply and fit them. If your installation qualifies, your quote shows 0% VAT and a lower price. Servicing, repairs, cleaning and controls are charged at 20%.
Working with your builder
On build projects the main thing is timing with your builder and electrician; we fit first-fix pipework before plastering and agree the outdoor unit position early.
The survey
At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote. A survey in Chelsea usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes.
What is included
Included with air conditioning for new builds and renovations in Chelsea:
- First-fix pipework, drains and cables
- Vacuum, charge and commissioning
- Commissioning records for building control files
- Nitrogen pressure test and labelled tails
- Design and setting-out with your builder
Nearby
We also cover Battersea (1 mile), Fulham (1 mile) and Westminster (2 miles). See all services in Chelsea or new build and renovation air conditioning across London.

