New build and renovation air conditioning in Hanworth
First-fix pipework in Hanworth 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 Hanworth extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. Hanworth lies roughly 12 miles from central London, and we cover it as part of London. That includes the TW13 postcode district.
Prices in Hanworth
Our London guide price for air conditioning for new builds and renovations is £495–£1,195 per indoor position (first fix), VAT included. London is one of the dearer parts of the UK for trades, which shows in the range. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. For reference, the First and second fix option in Hanworth (complete install priced per room including units) usually comes to 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
On build projects the main thing is timing with your builder and electrician; we fit first-fix pipework before plastering and agree the outdoor unit position early.
The survey
On a survey in Hanworth 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. 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
Every job in Hanworth includes:
- Second-fix unit installation
- First-fix pipework, drains and cables
- Design and setting-out with your builder
- Vacuum, charge and commissioning
- Nitrogen pressure test and labelled tails
Nearby
We also cover Feltham (2 miles), Sunbury-on-Thames (2 miles) and Hounslow (3 miles). See all services in Hanworth or new build and renovation air conditioning across London.