New build and renovation air conditioning in Finchley
For new Finchley extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights.
Renovations in Finchley are the easiest jobs to make invisible, because the pipework goes in before the plaster. We cover Finchley as part of London, roughly 8 miles from central London. We cover N3 and the streets around them.
Prices in Finchley
For Finchley, expect roughly £495 to £1,195 per indoor position (first fix), VAT included, adjusted for typical London rates. London is one of the dearer parts of the UK for trades, which shows in the range. What moves a quote in Finchley up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. On our London figures, the First and second fix option (complete install priced per room including units) is 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
First-fix work is about coordination, while the outdoor unit follows the normal planning rules for the property.
The survey
A survey in Finchley 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. 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
Included with air conditioning for new builds and renovations in Finchley:
- Commissioning records for building control files
- Nitrogen pressure test and labelled tails
- Second-fix unit installation
- Vacuum, charge and commissioning
- First-fix pipework, drains and cables
Nearby
Close to Finchley, our coverage also includes Muswell Hill (2 miles), Cricklewood (3 miles) and Kilburn (3 miles). See all services in Finchley or new build and renovation air conditioning across London.

