Air conditioning for flats and apartments in Isleworth
Balcony-mounted outdoor units are often the neatest solution for flats in Isleworth. 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.
In Isleworth apartment blocks, the freeholder's consent is usually the first thing to sort out. Isleworth sits around 10 miles from central London, inside our London area. Homes in TW7 are all within our coverage.
Prices in Isleworth
Guide prices around Isleworth run from £1,795 to £7,845 per flat, one room to the whole flat including VAT. That is above the UK middle, mainly because labour and access cost more in London. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. On our London figures, the Two rooms option (twin multi-split for living room and main bedroom) is about £3,495–£5,195.
Single room
One wall unit with a balcony outdoor unit.
Two rooms
Twin multi-split for living room and main bedroom.
Whole flat
Three or four rooms on one outdoor unit, concealed routes.
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%.
Consent and planning for flats
For flats in Isleworth, the lease and the freeholder's consent come first. Planning rules for blocks of flats are stricter than for houses, and we check them before quoting. In England, permitted development allows one outdoor unit of up to 0.6 m³ on a block of flats; anything more needs planning permission.
The survey
Surveys in Isleworth cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. We book surveys in Isleworth at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included as standard in Isleworth:
- Free survey and lease and consent checklist
- Documents for the managing agent
- Outdoor unit position agreed with the freeholder
- Single or multi-split system
- Pressure test, vacuum and commissioning
Nearby
Nearby, we also cover Hounslow (under a mile), Heston (2 miles) and Richmond (2 miles). See all services in Isleworth or air conditioning for flats and apartments across London.