New build and renovation air conditioning across Northamptonshire
First-fix pipework in Northampton extensions goes in while the joists and studs are open. Renovations in Northampton are the easiest jobs to make invisible, because the pipework goes in before the plaster. The East Midlands gets warm, dry summer spells, and loft conversions and top-floor bedrooms are where the heat builds.
Prices in Northamptonshire
Air conditioning for new builds and renovations in Northamptonshire typically comes in at £380–£845 per indoor position (first fix) including VAT, based on East Midlands rates. That sits a little below the UK middle, reflecting typical East Midlands labour rates. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. As an example, the First and second fix option (complete install priced per room including units) would typically be £1,395–£2,845 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
Because the pipework is built into the structure, coordination with your builder matters more than planning here; the outdoor unit follows the same rules as any other installation.
The survey
We book surveys in Northamptonshire at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. Surveys in Northamptonshire cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included with air conditioning for new builds and renovations across Northamptonshire:
- Nitrogen pressure test and labelled tails
- Second-fix unit installation
- First-fix pipework, drains and cables
- Design and setting-out with your builder
- Commissioning records for building control files
- Vacuum, charge and commissioning
Towns in Northamptonshire
Pick your town for local details, or see every service in Northamptonshire.

