Ducted air conditioning in Boston
The East Midlands gets warm, dry summer spells, and loft conversions and top-floor bedrooms are where the heat builds. Ducted systems suit Boston loft conversions and new extensions where ceilings are being boarded anyway.
In an older house in Boston, the loft and any existing bulkheads decide whether a ducted layout will work. Boston sits around 27 miles from Lincoln, inside our Lincolnshire area. That includes the PE21 postcode district.
Prices in Boston
Budget around £5,245–£14,345 per system including VAT for ducted air conditioning in and around Boston. That sits a little below the UK middle, reflecting typical East Midlands labour rates. The biggest variables are the pipe route, access for the outdoor unit and the state of the consumer unit, all of which the survey settles. On our East Midlands figures, the Zoned option (motorised dampers or two units for separate floors or room groups) is about £7,145–£10,495.
Single zone
One ducted unit serving two or three rooms from a loft or void.
Zoned
Motorised dampers or two units for separate floors or room groups.
Whole home
Multiple ducted units with linear slot diffusers and smart control.
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
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. Surveys in Boston cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included as standard in Boston:
- Free survey with ceiling-void and loft inspection
- Access hatch and condensate route planned in
- Wall controller or app control
- Insulated ductwork, plenums and grilles
- Commissioning with airflow balancing per grille
Nearby
Neighbouring places we cover include Spalding (14 miles), Sleaford (16 miles) and Horncastle (16 miles). See all services in Boston or ducted air conditioning across Lincolnshire.

