Air conditioning for extensions and kitchen-diners in Hayes
For a kitchen-diner in Hayes, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Many London homes are flats or tall terraces, where heat rises to the top floor and the bedrooms bear the brunt of a hot spell.
In Hayes, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Hayes lies roughly 13 miles from central London, and we cover it as part of London. That includes the UB3 and UB8 postcode districts.
Prices in Hayes
Our London guide price for air conditioning for extensions and kitchen-diners is £1,895–£5,845 per space, VAT included. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. What moves a quote in Hayes up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. Typical Large single work (one 5–7 kW unit for a large glazed space) lands around £2,695–£3,745 in this area.
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
England's rules let most houses fit an outdoor unit without a planning application, as long as the size, number and MCS 020(a) noise conditions are met. Flats, listed buildings and roof-mounted units are treated differently.
The survey
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. We book surveys in Hayes at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Every job in Hayes includes:
- Pressure test, vacuum and commissioning
- Hidden routes during the build, or neat surface routes after
- Placement clear of the hob and oven
- Free survey with glazing and roof heat-gain check
- Handover of the remote or app
Nearby
If you are just outside Hayes, we also work in Southall (2 miles), Heston (3 miles) and Greenford (3 miles). See all services in Hayes or air conditioning for extensions and kitchen-diners across London.