Air conditioning for extensions and kitchen-diners in Seaford
Hot spells reach the South East early, which makes spring the easiest time to arrange an installation. In Seaford, a side wall of a single-storey extension is usually the neatest place for the indoor unit.
An extension in Seaford with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Seaford is about 11 miles from Brighton and falls within our East Sussex coverage. That includes the BN25 postcode district.
Prices in Seaford
For Seaford, expect roughly £1,745 to £5,445 per space, VAT included, adjusted for typical South East England rates. That is above the UK middle, mainly because labour and access cost more in South East England. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. On our South East England figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £2,495–£3,495.
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
For most houses in Seaford, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
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. A survey in Seaford usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes.
What is included
What a job in Seaford covers:
- Placement clear of the hob and oven
- Hidden routes during the build, or neat surface routes after
- One or two units sized for the whole space
- Pressure test, vacuum and commissioning
- Free survey with glazing and roof heat-gain check
Nearby
Close to Seaford, our coverage also includes Rottingdean (8 miles), Eastbourne (8 miles) and Hailsham (9 miles). See all services in Seaford or air conditioning for extensions and kitchen-diners across East Sussex.