Air conditioning for extensions and kitchen-diners in Greenford
For a kitchen-diner in Greenford, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. 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.
An extension in Greenford with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Greenford lies roughly 10 miles from central London, and we cover it as part of London. Postcode districts we cover here include UB6.
Prices in Greenford
Our London guide price for air conditioning for extensions and kitchen-diners is £1,895–£5,845 per space, VAT included. 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. As an example, the Large single option (one 5–7 kW unit for a large glazed space) would typically be £2,695–£3,745 here.
Single unit
One 3.5–5 kW unit for a medium extension.
Large single
One 5–7 kW unit for a large glazed space.
Twin units
Two indoor units on a multi-split for long or L-shaped spaces.
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%.
Planning and permissions
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
The survey
On a survey in Greenford 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
Included with air conditioning for extensions and kitchen-diners in Greenford:
- Free survey with glazing and roof heat-gain check
- Pressure test, vacuum and commissioning
- Handover of the remote or app
- Placement clear of the hob and oven
- One or two units sized for the whole space
Nearby
Close to Greenford, our coverage also includes Northolt (1 mile), Southall (2 miles) and Wembley (3 miles). See all services in Greenford or air conditioning for extensions and kitchen-diners across London.

