Air conditioning for extensions and kitchen-diners in Horfield
In Horfield, a side wall of a single-storey extension is usually the neatest place for the indoor unit. Damp South West winters make the dehumidifying side of a heat pump almost as useful as its cooling.
For a kitchen-diner in Horfield, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Horfield is part of our Bristol coverage. Coverage includes BS7.
Prices in Horfield
In South West England, our guide range for air conditioning for extensions and kitchen-diners is £1,450–£4,450 per space, including VAT. 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. As an example, the Large single option (one 5–7 kW unit for a large glazed space) would typically be £2,050–£2,850 here.
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
On a survey in Horfield the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows. Surveys in Horfield cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Every job in Horfield includes:
- Hidden routes during the build, or neat surface routes after
- Pressure test, vacuum and commissioning
- Placement clear of the hob and oven
- One or two units sized for the whole space
- Handover of the remote or app
Nearby
Neighbouring places we cover include Fishponds (1 mile), Mangotsfield (2 miles) and Kingswood (3 miles). See all services in Horfield or air conditioning for extensions and kitchen-diners across Bristol.

