Air conditioning for extensions and kitchen-diners in Dumbarton
Long Scottish heating seasons make efficiency in cold, damp weather the thing to design around. For a kitchen-diner in Dumbarton, we place the indoor unit clear of the hob and plan the outdoor unit at the rear.
An extension in Dumbarton with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Dumbarton is about 13 miles from Glasgow and falls within our Glasgow and Dunbartonshire coverage. Homes in G82 are all within our coverage.
Prices in Dumbarton
For Dumbarton, expect roughly £1,345 to £4,095 per space, VAT included, adjusted for typical Central and Southern Scotland rates. It is a touch below the UK middle, as trade rates in Central and Southern Scotland tend to be. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. On our Central and Southern Scotland figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £1,895–£2,595.
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
At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote. 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.
What is included
Every job in Dumbarton includes:
- Placement clear of the hob and oven
- Free survey with glazing and roof heat-gain check
- Handover of the remote or app
- Hidden routes during the build, or neat surface routes after
- One or two units sized for the whole space
Nearby
Neighbouring places we cover include Vale of Leven (2 miles), Erskine (6 miles) and Clydebank (7 miles). See all services in Dumbarton or air conditioning for extensions and kitchen-diners across Glasgow and Dunbartonshire.

