New build and renovation air conditioning in Carshalton
Renovations in Carshalton are the easiest jobs to make invisible, because the pipework goes in before the plaster. Many London homes are flats or tall terraces, where heat rises to the top floor and the bedrooms bear the brunt of a hot spell.
First-fix pipework in Carshalton extensions goes in while the joists and studs are open. Carshalton lies roughly 9 miles from central London, and we cover it as part of London. Homes in SM5 are all within our coverage.
Prices in Carshalton
For Carshalton, expect roughly £495 to £1,195 per indoor position (first fix), VAT included, adjusted for typical London rates. 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. For reference, the First and second fix option in Carshalton (complete install priced per room including units) usually comes to about £1,895–£3,895.
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
Surveys in Carshalton cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. 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.
What is included
Here is what is included on every job in Carshalton:
- Commissioning records for building control files
- Vacuum, charge and commissioning
- Design and setting-out with your builder
- Second-fix unit installation
- First-fix pipework, drains and cables
Nearby
Neighbouring places we cover include Sutton (2 miles), Mitcham (2 miles) and Morden (2 miles). See all services in Carshalton or new build and renovation air conditioning across London.