Multi-split air conditioning in Portsmouth
The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first. Twin and triple systems suit Portsmouth homes where bedrooms sit above the kitchen and one rear wall can take the outdoor unit.
Multi-split is a good fit for Portsmouth flats and maisonettes where only a balcony or one rear wall is available. Our Hampshire coverage takes in Portsmouth, about 15 miles from Southampton. We cover PO5 and the streets around them.
Prices in Portsmouth
In South East England, our guide range for multi-split air conditioning is £2,995–£9,445 for 2–4 rooms, including VAT. That is above the UK middle, mainly because labour and access cost more in South East England. 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 East England figures, the Triple option (three rooms with mixed indoor styles and Wi-Fi control throughout) is about £4,095–£6,645.
Twin
Two rooms on one outdoor unit, wall-mounted indoor units, standard routes.
Triple
Three rooms with mixed indoor styles and Wi-Fi control throughout.
Quad
Four or five rooms, longer concealed runs or a ducted unit in a loft 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
England's rules let most houses fit an outdoor unit without a planning application, as long as the size, number and MCS 020(a) noise conditions are met. Flats, listed buildings and roof-mounted units are treated differently.
The survey
We book surveys in Portsmouth at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. Surveys in Portsmouth cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included as standard in Portsmouth:
- Commissioning and a walk-round of every room's controls
- An indoor unit and controls for every room
- Pressure test, vacuum and refrigerant charge calculated for the pipe lengths
- Planned pipe routes through lofts, floors or trunking
- One outdoor unit sized to the combined load
Nearby
Nearby, we also cover Gosport (2 miles), Fareham (5 miles) and Havant (6 miles). See all services in Portsmouth or multi-split air conditioning across Hampshire.