New build and renovation air conditioning in Welling
Renovations in Welling are the easiest jobs to make invisible, because the pipework goes in before the plaster. Many London homes are flats or tall terraces, where heat rises to the top floor and the bedrooms bear the brunt of a hot spell.
For new Welling extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. Our London coverage takes in Welling, about 10 miles from central London. That includes the DA16 postcode district.
Prices in Welling
For Welling, expect roughly £495 to £1,195 per indoor position (first fix), VAT included, adjusted for typical London rates. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. 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
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
A survey in Welling usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes. 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 in Welling:
- First-fix pipework, drains and cables
- Second-fix unit installation
- Commissioning records for building control files
- Nitrogen pressure test and labelled tails
- Vacuum, charge and commissioning
Nearby
Close to Welling, our coverage also includes Bexley (2 miles), Eltham (3 miles) and Thamesmead (3 miles). See all services in Welling or new build and renovation air conditioning across London.

