Wall-mounted air conditioning in Southampton
In a semi or terrace in Southampton, the indoor unit often goes on a back bedroom wall with the outdoor unit on a bracket below. The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first.
Where a home in Southampton faces the street, the outdoor unit usually goes at the rear, out of sight. As well as Southampton itself, our Hampshire coverage takes in Portsmouth, Basingstoke and the towns around them. Coverage includes SO15.
Prices in Southampton
For Southampton, expect roughly £1,395 to £3,595 per room, VAT included, adjusted for typical South East England rates. South East England is one of the dearer parts of the UK for trades, which shows in the range. What moves a quote in Southampton up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. For reference, the Popular option in Southampton (quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room) usually comes to about £1,895–£2,595.
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
For most houses in Southampton, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
The survey
Surveys in Southampton cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. We book surveys in Southampton at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
What a job in Southampton covers:
- Insulated copper pipework, drain and interconnecting cable
- Nitrogen pressure test and deep vacuum before commissioning
- Free site survey and room heat-gain check
- Handover of the remote, Wi-Fi app (where fitted) and filter cleaning
- Supply of an R32 inverter unit sized to the room
Nearby
Neighbouring places we cover include Totton (4 miles), Eastleigh (5 miles) and Fareham (10 miles). See all services in Southampton or wall-mounted air conditioning across Hampshire.