Air conditioning for extensions and kitchen-diners across Orkney, Shetland and the Western Isles
In Stornoway, a side wall of a single-storey extension is usually the neatest place for the indoor unit. An extension in Stornoway with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Wind and salt air in the north of Scotland mean outdoor unit placement and protection need extra thought.
Prices in Orkney, Shetland and the Western Isles
Guide prices around Orkney, Shetland and the Western Isles run from £1,295 to £3,945 per space including VAT. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. For reference, the Large single option in Orkney, Shetland and the Western Isles (one 5–7 kW unit for a large glazed space) usually comes to about £1,795–£2,545. Travel, ferry or accommodation costs are not in these figures; they are quoted as a fixed amount in writing before you book.
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 Scotland, planning conditions for outdoor units depend on the property type and location; conservation areas and listed buildings need particular care.
The survey
Where travel is involved, we agree the survey arrangements and any travel cost up front. On the day, the engineer measures the rooms, checks the electrics and agrees the outdoor unit position with you. Surveys in Orkney, Shetland and the Western Isles are arranged around travel. We confirm the date and any travel, ferry or accommodation cost in writing before you commit, then the survey covers rooms, pipe routes, electrics and noise as normal.
What is included
Included with air conditioning for extensions and kitchen-diners across Orkney, Shetland and the Western Isles:
- Hidden routes during the build, or neat surface routes after
- Handover of the remote or app
- One or two units sized for the whole space
- Placement clear of the hob and oven
- Survey by arrangement with glazing and roof heat-gain check
- Pressure test, vacuum and commissioning
Towns in Orkney, Shetland and the Western Isles
Pick your town for local details, or see every service in Orkney, Shetland and the Western Isles.

