Air conditioning for extensions and kitchen-diners in Frome
An extension in Frome with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. In the South West, a system that heats well through damp winters is often as valuable as summer cooling.
In Frome, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Frome lies roughly 37 miles from Taunton, and we cover it as part of Somerset. Coverage includes BA11.
Prices in Frome
Budget around £1,450–£4,450 per space including VAT for air conditioning for extensions and kitchen-diners in and around Frome. That is broadly in line with national guide prices. Quotes move with the length of the pipe run, where the outdoor unit can sit and how much electrical work the job needs. On our South West England figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £2,050–£2,850.
Single unit
One 3.5–5 kW unit for a medium extension.
Large single
One 5–7 kW unit for a large glazed space.
Twin units
Two indoor units on a multi-split for long or L-shaped spaces.
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
Surveys in Frome cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. We book surveys in Frome at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
What a job in Frome covers:
- Pressure test, vacuum and commissioning
- Handover of the remote or app
- One or two units sized for the whole space
- Hidden routes during the build, or neat surface routes after
- Placement clear of the hob and oven
Nearby
Close to Frome, our coverage also includes Warminster (6 miles), Trowbridge (8 miles) and Shepton Mallet (10 miles). See all services in Frome or air conditioning for extensions and kitchen-diners across Somerset.