Air conditioning for extensions and kitchen-diners across Dyfed
An extension in Carmarthen with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. In Carmarthen, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Humid summer spells in South Wales make dehumidifying and cooling equally welcome.
Prices in Dyfed
In South and Mid Wales, our guide range for air conditioning for extensions and kitchen-diners is £1,345–£4,095 per space, including VAT. It is a touch below the UK middle, as trade rates in South and Mid Wales tend to be. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. For reference, the Large single option in Dyfed (one 5–7 kW unit for a large glazed space) usually comes to 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
We book surveys in Dyfed at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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
Included with air conditioning for extensions and kitchen-diners across Dyfed:
- Handover of the remote or app
- Placement clear of the hob and oven
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
Towns in Dyfed
Pick your town for local details, or see every service in Dyfed.