New build and renovation air conditioning in Ruislip
London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset. First-fix pipework in Ruislip extensions goes in while the joists and studs are open.
For new Ruislip extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. We cover Ruislip as part of London, roughly 14 miles from central London. Homes in HA4 are all within our coverage.
Prices in Ruislip
Budget around £495–£1,195 per indoor position (first fix) including VAT for air conditioning for new builds and renovations in and around Ruislip. London is one of the dearer parts of the UK for trades, which shows in the range. What moves a quote in Ruislip 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
First-fix work is about coordination, while the outdoor unit follows the normal planning rules for the property.
The survey
We book surveys in Ruislip at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote.
What is included
Included as standard in Ruislip:
- Commissioning records for building control files
- Nitrogen pressure test and labelled tails
- Design and setting-out with your builder
- Second-fix unit installation
- Vacuum, charge and commissioning
Nearby
Neighbouring places we cover include Northolt (3 miles), Uxbridge (3 miles) and Harrow (4 miles). See all services in Ruislip or new build and renovation air conditioning across London.

