New build and renovation air conditioning across West Sussex
Renovations in Crawley are the easiest jobs to make invisible, because the pipework goes in before the plaster. For new Crawley extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. Summers in the South East are among the warmest in the country, so cooling often comes first, with efficient winter heating as a bonus.
Prices in West Sussex
Guide prices around West Sussex run from £495 to £1,095 per indoor position (first fix) including VAT. Prices here sit above the national middle, reflecting South East England labour rates and parking and access costs. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. For reference, the First and second fix option in West Sussex (complete install priced per room including units) usually comes to about £1,745–£3,595.
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
We book surveys in West Sussex at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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 across West Sussex:
- Vacuum, charge and commissioning
- Second-fix unit installation
- Nitrogen pressure test and labelled tails
- First-fix pipework, drains and cables
- Commissioning records for building control files
- Design and setting-out with your builder
Towns in West Sussex
Pick your town for local details, or see every service in West Sussex.