New build and renovation air conditioning in Sutton
London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset. For new Sutton extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings.
First-fix pipework in Sutton extensions goes in while the joists and studs are open. We cover Sutton as part of London, roughly 11 miles from central London. That includes the RH5, SM1 and SM2 postcode districts.
Prices in Sutton
Our London guide price for air conditioning for new builds and renovations is £495–£1,195 per indoor position (first fix), VAT included. That is above the UK middle, mainly because labour and access cost more in London. What moves a quote in Sutton up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. 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
Because the pipework is built into the structure, coordination with your builder matters more than planning here; the outdoor unit follows the same rules as any other installation.
The survey
A survey in Sutton 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. On a survey in Sutton the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows.
What is included
What a job in Sutton covers:
- Design and setting-out with your builder
- Second-fix unit installation
- First-fix pipework, drains and cables
- Vacuum, charge and commissioning
- Commissioning records for building control files
Nearby
Nearby, we also cover Carshalton (2 miles), Banstead (2 miles) and Ewell (2 miles). See all services in Sutton or new build and renovation air conditioning across London.

