New build and renovation air conditioning in Hornchurch
London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset. For new Hornchurch extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings.
Renovations in Hornchurch are the easiest jobs to make invisible, because the pipework goes in before the plaster. We cover Hornchurch as part of London, roughly 15 miles from central London. Postcode districts we cover here include RM11 and RM12.
Prices in Hornchurch
In London, our guide range for air conditioning for new builds and renovations is £495–£1,195 per indoor position (first fix), including VAT. 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. For reference, the First and second fix option in Hornchurch (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 Hornchurch 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
What a job in Hornchurch covers:
- Nitrogen pressure test and labelled tails
- Vacuum, charge and commissioning
- Design and setting-out with your builder
- Commissioning records for building control files
- Second-fix unit installation
Nearby
Nearby, we also cover Romford (2 miles), Dagenham (2 miles) and Becontree (4 miles). See all services in Hornchurch or new build and renovation air conditioning across London.

