New build and renovation air conditioning in Chiswick
First-fix pipework in Chiswick extensions goes in while the joists and studs are open. The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights.
For new Chiswick extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. We cover Chiswick as part of London, roughly 6 miles from central London. Coverage includes W4.
Prices in Chiswick
Budget around £495–£1,195 per indoor position (first fix) including VAT for air conditioning for new builds and renovations in and around Chiswick. That is above the UK middle, mainly because labour and access cost more in London. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. 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
We book surveys in Chiswick 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 as standard in Chiswick:
- First-fix pipework, drains and cables
- Second-fix unit installation
- Commissioning records for building control files
- Design and setting-out with your builder
- Vacuum, charge and commissioning
Nearby
We also cover Acton (1 mile), Barnes (1 mile) and Shepherds Bush (2 miles). See all services in Chiswick or new build and renovation air conditioning across London.