New build and renovation air conditioning in Muswell Hill
For new Muswell Hill extensions with flat roofs, the outdoor unit position is best agreed against the architect's drawings. London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset.
First-fix pipework in Muswell Hill extensions goes in while the joists and studs are open. We cover Muswell Hill as part of London, roughly 6 miles from central London. Homes in N2 and N10 are all within our coverage.
Prices in Muswell Hill
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. What moves a quote in Muswell Hill up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. 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
On a survey in Muswell Hill 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. We book surveys in Muswell Hill at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Every job in Muswell Hill includes:
- First-fix pipework, drains and cables
- Vacuum, charge and commissioning
- Design and setting-out with your builder
- Second-fix unit installation
- Nitrogen pressure test and labelled tails
Nearby
Nearby, we also cover Wood Green (1 mile), Archway (2 miles) and Finchley (2 miles). See all services in Muswell Hill or new build and renovation air conditioning across London.

