Home air conditioning in Cornwall
South West summers are milder on the coast, but sheltered towns and south-facing rooms still overheat, and efficient winter heating matters just as much. Damp South West winters make the dehumidifying side of a heat pump almost as useful as its cooling.
For Truro landlords, swapping storage heaters for a heat pump is one of the more effective EPC improvements. Ducted systems suit Truro loft conversions and new extensions where ceilings are being boarded anyway. For bedrooms in Truro, we place the outdoor unit at the back of the house, away from neighbours' windows. Many homes start with one or two rooms. A system can be designed so that more rooms are added later without replacing the outdoor unit. Flats, listed homes and garden rooms each bring their own questions, from freeholder consent to cable routes, and we cover them at survey.
Towns we cover in Cornwall
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.
If your home in Cornwall is replacing fossil fuel or electric heating, and no gas, oil or LPG boiler stays in use, an MCS-certified air-to-air heat pump may qualify for the £2,500 Boiler Upgrade Scheme grant, which the MCS-certified installer claims and deducts from the price.
Guide prices in Cornwall
A selection of services on our South West England figures, including VAT. Every service, with its local price, is listed below.
| Service | Guide price | Basis |
|---|---|---|
| Floor console air conditioning | £1,350–£2,950 | per room |
| Bedroom and loft air conditioning | £1,195–£2,950 | per room |
| Conservatory air conditioning | £1,450–£3,450 | per system |
| Air conditioning for period and listed homes | £1,650–£7,950 | per home, one room upwards |
| New build and renovation air conditioning | £395–£895 | per indoor position (first fix) |
| Air-to-air heat pumps | £2,950–£11,450 | for 2–5 rooms, before any grant |
| Heat load surveys and system design | £395–£1,250 | for a standalone design pack |
| Deep clean and odour treatment | £145–£245 | per indoor unit |