Air conditioning for extensions and kitchen-diners in Caerphilly
An extension in Caerphilly with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. In South and Mid Wales, efficient heating is often as important as cooling.
For a kitchen-diner in Caerphilly, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Caerphilly sits around 16 miles from Bridgend, inside our Mid Glamorgan area. Coverage includes CF83.
Prices in Caerphilly
For Caerphilly, expect roughly £1,345 to £4,095 per space, VAT included, adjusted for typical South and Mid Wales rates. It is a touch below the UK middle, as trade rates in South and Mid Wales tend to be. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. On our South and Mid Wales 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 Wales, outdoor units of up to 1.5 m³ that meet MCS 020a noise limits are usually permitted development on houses; listed buildings need consent, and in conservation areas a unit cannot go on a wall or roof facing a road.
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. On a survey in Caerphilly 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.
What is included
Included with air conditioning for extensions and kitchen-diners in Caerphilly:
- Free survey with glazing and roof heat-gain check
- Pressure test, vacuum and commissioning
- Placement clear of the hob and oven
- Handover of the remote or app
- Hidden routes during the build, or neat surface routes after
Nearby
We also cover Risca (6 miles), Pontypridd (6 miles) and Gelligaer (6 miles). See all services in Caerphilly or air conditioning for extensions and kitchen-diners across Mid Glamorgan.