Air conditioning for extensions and kitchen-diners in Thame
In the South East, loft rooms and glazed extensions can climb well above the outside temperature on a sunny afternoon. An extension in Thame with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon.
For a kitchen-diner in Thame, we place the indoor unit clear of the hob and plan the outdoor unit at the rear. Thame sits around 12 miles from Oxford, inside our Oxfordshire area. Postcode districts we cover here include OX9.
Prices in Thame
In South East England, our guide range for air conditioning for extensions and kitchen-diners is £1,745–£5,445 per space, including VAT. Prices here sit above the national middle, reflecting South East England labour rates and parking and access costs. 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 £2,495–£3,495 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
For most houses in Thame, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
The survey
On a survey in Thame 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 Thame cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Here is what is included on every job in Thame:
- Pressure test, vacuum and commissioning
- Placement clear of the hob and oven
- Handover of the remote or app
- Free survey with glazing and roof heat-gain check
- One or two units sized for the whole space
Nearby
Neighbouring places we cover include Aylesbury (8 miles), Oxford (12 miles) and Wallingford (12 miles). See all services in Thame or air conditioning for extensions and kitchen-diners across Oxfordshire.