New build and renovation air conditioning in Willesden
Renovations in Willesden are the easiest jobs to make invisible, because the pipework goes in before the plaster. The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights.
First-fix pipework in Willesden extensions goes in while the joists and studs are open. Willesden is about 5 miles from central London and falls within our London coverage. Postcode districts we cover here include NW10.
Prices in Willesden
Budget around £495–£1,195 per indoor position (first fix) including VAT for air conditioning for new builds and renovations in and around Willesden. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. 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 Willesden (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 Willesden 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. 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
Here is what is included on every job in Willesden:
- Nitrogen pressure test and labelled tails
- Design and setting-out with your builder
- First-fix pipework, drains and cables
- Second-fix unit installation
- Commissioning records for building control files
Nearby
Close to Willesden, our coverage also includes Cricklewood (2 miles), Notting Hill (2 miles) and Shepherds Bush (2 miles). See all services in Willesden or new build and renovation air conditioning across London.

