New build and renovation air conditioning in Mitcham
For new Mitcham extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. In London, heat soaks into brick and concrete during the day and comes back out at night, which is when it is hardest to sleep.
First-fix pipework in Mitcham extensions goes in while the joists and studs are open. Our London coverage takes in Mitcham, about 7 miles from central London. That includes the CR4 postcode district.
Prices in Mitcham
Budget around £495–£1,195 per indoor position (first fix) including VAT for air conditioning for new builds and renovations in and around Mitcham. London is one of the dearer parts of the UK for trades, which shows in the range. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. Typical First and second fix work (complete install priced per room including units) lands around £1,895–£3,895 in this area.
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 Mitcham 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 Mitcham 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
Every job in Mitcham includes:
- Second-fix unit installation
- First-fix pipework, drains and cables
- Commissioning records for building control files
- Design and setting-out with your builder
- Nitrogen pressure test and labelled tails
Nearby
We also cover Morden (1 mile), Wimbledon (2 miles) and Streatham (2 miles). See all services in Mitcham or new build and renovation air conditioning across London.