Air conditioning for extensions and kitchen-diners in Speke
An extension in Speke with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Milder summers in the North West mean designing for winter comfort as much as for a heatwave.
For a kitchen-diner in Speke, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Speke is about 7 miles from Liverpool and falls within our Merseyside coverage. We cover L24 and the streets around them.
Prices in Speke
Our North West England guide price for air conditioning for extensions and kitchen-diners is £1,395–£4,245 per space, VAT included. It is a touch below the UK middle, as trade rates in North West England tend to be. 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 Large single work (one 5–7 kW unit for a large glazed space) lands around £1,945–£2,695 in this area.
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 Speke cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote.
What is included
Here is what is included on every job in Speke:
- Placement clear of the hob and oven
- Pressure test, vacuum and commissioning
- One or two units sized for the whole space
- Hidden routes during the build, or neat surface routes after
- Free survey with glazing and roof heat-gain check
Nearby
If you are just outside Speke, we also work in Garston (2 miles), Runcorn (5 miles) and Widnes (5 miles). See all services in Speke or air conditioning for extensions and kitchen-diners across Merseyside.

