Wall-mounted air conditioning across Dyfed
Where a home in Carmarthen faces the street, the outdoor unit usually goes at the rear, out of sight. A single wall-mounted unit is often all a bedroom or sunny living room in Carmarthen needs. South Wales summers can be warm and humid, and winters damp, so a reversible system earns its keep all year.
Prices in Dyfed
Our South and Mid Wales guide price for wall-mounted air conditioning is £1,045–£2,695 per room, VAT included. Labour rates in South and Mid Wales keep this slightly under the national middle. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. On our South and Mid Wales figures, the Popular option (quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room) is about £1,445–£1,995.
Essential
Reliable 2.5–3.5 kW unit for a bedroom or study, standard pipe run, basic remote.
Popular
Quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room.
Premium
Design-led or very quiet model, larger capacity or concealed pipework through a void.
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 Dyfed 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
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. We book surveys in Dyfed at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included with wall-mounted air conditioning across Dyfed:
- Nitrogen pressure test and deep vacuum before commissioning
- Core-drilled wall penetration and sealed sleeve
- Handover of the remote, Wi-Fi app (where fitted) and filter cleaning
- Free site survey and room heat-gain check
- Insulated copper pipework, drain and interconnecting cable
- Supply of an R32 inverter unit sized to the room
Towns in Dyfed
Pick your town for local details, or see every service in Dyfed.