Air conditioning for extensions and kitchen-diners in Boston
An extension in Boston with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Summer peaks in the East Midlands make bedrooms under the roof the hardest rooms to keep comfortable.
For a kitchen-diner in Boston, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Our Lincolnshire coverage takes in Boston, about 27 miles from Lincoln. That includes the PE21 postcode district.
Prices in Boston
Guide prices around Boston run from £1,395 to £4,245 per space including VAT. That sits a little below the UK middle, reflecting typical East Midlands labour rates. Longer or hidden pipe runs, high-level brackets and electrical upgrades are the usual reasons a quote lands at the top of the range. On our East Midlands figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £1,945–£2,745.
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
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
The survey
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. 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
Included with air conditioning for extensions and kitchen-diners in Boston:
- Hidden routes during the build, or neat surface routes after
- Placement clear of the hob and oven
- One or two units sized for the whole space
- Free survey with glazing and roof heat-gain check
- Pressure test, vacuum and commissioning
Nearby
Neighbouring places we cover include Spalding (14 miles), Sleaford (16 miles) and Horncastle (16 miles). See all services in Boston or air conditioning for extensions and kitchen-diners across Lincolnshire.