Ducted air conditioning in Portsmouth
Ducted systems suit Portsmouth loft conversions and new extensions where ceilings are being boarded anyway. Summers in the South East are among the warmest in the country, so cooling often comes first, with efficient winter heating as a bonus.
In an older house in Portsmouth, the loft and any existing bulkheads decide whether a ducted layout will work. We cover Portsmouth as part of Hampshire, roughly 15 miles from Southampton. We cover PO5 and the streets around them.
Prices in Portsmouth
Ducted air conditioning in Portsmouth typically comes in at £6,645–£18,245 per system including VAT, based on South East England rates. 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. Typical Zoned work (motorised dampers or two units for separate floors or room groups) lands around £9,095–£13,345 in this area.
Single zone
One ducted unit serving two or three rooms from a loft or void.
Zoned
Motorised dampers or two units for separate floors or room groups.
Whole home
Multiple ducted units with linear slot diffusers and smart control.
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 Portsmouth, 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
We book surveys in Portsmouth at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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.
What is included
What a job in Portsmouth covers:
- Insulated ductwork, plenums and grilles
- Wall controller or app control
- Commissioning with airflow balancing per grille
- Access hatch and condensate route planned in
- Free survey with ceiling-void and loft inspection
Nearby
Close to Portsmouth, our coverage also includes Gosport (2 miles), Fareham (5 miles) and Havant (6 miles). See all services in Portsmouth or ducted air conditioning across Hampshire.