Heat load surveys and system design in Tonbridge
Summers in the South East are among the warmest in the country, so cooling often comes first, with efficient winter heating as a bonus. Every Tonbridge quote starts with a room-by-room survey rather than a guess from floor area.
For self-builds and extensions in Tonbridge, a standalone design pack can go straight to your builder. Tonbridge sits around 12 miles from Maidstone, inside our Kent area. Homes in TN9 are all within our coverage.
Prices in Tonbridge
Budget around £495–£1,495 for a standalone design pack including VAT for heat load surveys and system design in and around Tonbridge. That is above the UK middle, mainly because labour and access cost more in South East England. The design pack price depends mainly on the number of rooms and whether full drawings and equipment schedules are needed. On our South East England figures, the Design pack option (drawings and schedules for one home) is about £495–£945.
Home survey
Free with an installation quote.
Design pack
Drawings and schedules for one home.
Self-build pack
Whole-house design for a new build.
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. We book surveys in Tonbridge at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included as standard in Tonbridge:
- Equipment selection and outdoor unit sizing
- Room-by-room heat gain and heat loss
- Noise check to the nearest neighbour
- Pipe and drain routes
- Written proposal with options
Nearby
Neighbouring places we cover include Tunbridge Wells (4 miles), Sevenoaks (6 miles) and Crowborough (10 miles). See all services in Tonbridge or heat load surveys and system design across Kent.