New build and renovation air conditioning in Thamesmead
Renovations in Thamesmead are the easiest jobs to make invisible, because the pipework goes in before the plaster. In London, heat soaks into brick and concrete during the day and comes back out at night, which is when it is hardest to sleep.
First-fix pipework in Thamesmead extensions goes in while the joists and studs are open. We cover Thamesmead as part of London, roughly 11 miles from central London. That includes the SE2 and SE28 postcode districts.
Prices in Thamesmead
Guide prices around Thamesmead run from £495 to £1,195 per indoor position (first fix) including VAT. London is one of the dearer parts of the UK for trades, which shows in the range. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. Typical First and second fix work (complete install priced per room including units) lands around £1,895–£3,895 in this area.
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
Surveys in Thamesmead cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. A survey in Thamesmead 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.
What is included
Included as standard in Thamesmead:
- Commissioning records for building control files
- Design and setting-out with your builder
- Vacuum, charge and commissioning
- First-fix pipework, drains and cables
- Nitrogen pressure test and labelled tails
Nearby
We also cover Barking (3 miles), Welling (3 miles) and Becontree (3 miles). See all services in Thamesmead or new build and renovation air conditioning across London.

