Air conditioning for extensions and kitchen-diners in Heswall
In Heswall, a side wall of a single-storey extension is usually the neatest place for the indoor unit. North West summers are cooler, so many systems here earn their keep as efficient heaters, with cooling for the warmest weeks.
An extension in Heswall with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Heswall lies roughly 8 miles from Liverpool, and we cover it as part of Merseyside. Homes in CH60 are all within our coverage.
Prices in Heswall
Guide prices around Heswall run from £1,395 to £4,245 per space including VAT. That sits a little below the UK middle, reflecting typical North West England labour rates. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. As an example, the Large single option (one 5–7 kW unit for a large glazed space) would typically be £1,945–£2,695 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 Heswall 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. 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
Here is what is included on every job in Heswall:
- 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
- Handover of the remote or app
- Placement clear of the hob and oven
Nearby
If you are just outside Heswall, we also work in Bebington (4 miles), Birkenhead (6 miles) and Wallasey (7 miles). See all services in Heswall or air conditioning for extensions and kitchen-diners across Merseyside.