Air conditioning for extensions and kitchen-diners in Blyth
An extension in Blyth with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Cooler North East summers mean cooling is mostly needed in lofts, conservatories and rooms with large windows.
For a kitchen-diner in Blyth, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. We cover Blyth and the rest of Northumberland, including Cramlington and Ashington. Homes in NE24 are all within our coverage.
Prices in Blyth
Guide prices around Blyth run from £1,345 to £4,095 per space including VAT. That sits a little below the UK middle, reflecting typical North East England labour rates. 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 £1,895–£2,595 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
Since 29 May 2025, England's permitted development rules allow larger outdoor units (up to 1.5 m³) and no longer require a 1 m gap to the boundary, provided the MCS 020(a) noise check is met. Listed buildings and pitched-roof installs still need permission.
The survey
On a survey in Blyth 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. A survey in Blyth 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 Blyth covers:
- One or two units sized for the whole space
- Hidden routes during the build, or neat surface routes after
- Free survey with glazing and roof heat-gain check
- Pressure test, vacuum and commissioning
- Handover of the remote or app
Nearby
Neighbouring places we cover include Ashington (4 miles), Cramlington (4 miles) and Whitley Bay (7 miles). See all services in Blyth or air conditioning for extensions and kitchen-diners across Northumberland.

