Wall-mounted air conditioning in Portsmouth
In a semi or terrace in Portsmouth, 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 Portsmouth faces the street, the outdoor unit usually goes at the rear, out of sight. Portsmouth is about 15 miles from Southampton and falls within our Hampshire coverage. Coverage includes PO5.
Prices in Portsmouth
Wall-mounted air conditioning in Portsmouth typically comes in at £1,395–£3,595 per room including VAT, based on 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 Portsmouth up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. Typical Popular work (quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room) lands around £1,895–£2,595 in this area.
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
Since 29 May 2025, England's permitted development rules allow larger outdoor units (up to 1.5 m³) and no longer require a 1 m gap to the boundary, provided the MCS 020(a) noise check is met. Listed buildings and pitched-roof installs still need permission.
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. 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 wall-mounted air conditioning in Portsmouth:
- Supply of an R32 inverter unit sized to the room
- Nitrogen pressure test and deep vacuum before commissioning
- 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
Nearby
Neighbouring places we cover include Gosport (2 miles), Fareham (5 miles) and Havant (6 miles). See all services in Portsmouth or wall-mounted air conditioning across Hampshire.