Air conditioning for extensions and kitchen-diners in Bangor, Gwynedd
In North Wales, an air-to-air system can be an efficient way to heat holiday homes and bungalows, with cooling as a bonus. An extension in Bangor with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon.
For a kitchen-diner in Bangor, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. We cover Bangor, Gwynedd and the rest of Gwynedd, including Caernarfon and Dolgellau. We cover LL57 and the streets around them.
Prices in Bangor, Gwynedd
Our North Wales guide price for air conditioning for extensions and kitchen-diners is £1,345–£4,195 per space, VAT included. It is a touch below the UK middle, as trade rates in North Wales tend to be. 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 £1,945–£2,695 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
Wales removed its old 3 m boundary rule on 1 June 2026, so most houses in Bangor can now have an outdoor unit under permitted development if it meets the MCS 020a noise condition. Listed buildings still need consent, and conservation areas have extra restrictions.
The survey
On a survey in Bangor, Gwynedd 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. 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
What a job in Bangor covers:
- Pressure test, vacuum and commissioning
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- One or two units sized for the whole space
- Placement clear of the hob and oven
Nearby
We also cover Llangefni (8 miles), Caernarfon (8 miles) and Llandudno (14 miles). See all services in Bangor, Gwynedd or air conditioning for extensions and kitchen-diners across Gwynedd.