Air conditioning for extensions and kitchen-diners in Berwick-upon-Tweed
Cooler North East summers mean cooling is mostly needed in lofts, conservatories and rooms with large windows. An extension in Berwick-upon-Tweed with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon.
For a kitchen-diner in Berwick-upon-Tweed, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Berwick-upon-Tweed lies roughly 49 miles from Blyth, and we cover it as part of Northumberland. We cover TD15 and the streets around them.
Prices in Berwick-upon-Tweed
For Berwick-upon-Tweed, expect roughly £1,345 to £4,095 per space, VAT included, adjusted for typical North East England rates. That sits a little below the UK middle, reflecting typical North East England labour rates. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. 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
Surveys in Berwick-upon-Tweed cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. We book surveys in Berwick-upon-Tweed at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Here is what is included on every job in Berwick-upon-Tweed:
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- Placement clear of the hob and oven
- Handover of the remote or app
- One or two units sized for the whole space
Nearby
We also cover Alnwick (28 miles). See all services in Berwick-upon-Tweed or air conditioning for extensions and kitchen-diners across Northumberland.

