Heat load surveys and system design in Shepton Mallet
For self-builds and extensions in Shepton Mallet, a standalone design pack can go straight to your builder. Coastal breezes help, but inland South West towns and glazed rooms still see uncomfortable peaks.
Every Shepton Mallet quote starts with a room-by-room survey rather than a guess from floor area. Shepton Mallet sits around 27 miles from Taunton, inside our Somerset area. We cover BA4 and the streets around them.
Prices in Shepton Mallet
Heat load surveys and system design in Shepton Mallet typically come in at £395–£1,250 for a standalone design pack including VAT, based on South West England rates. That is close to the UK middle for this kind of work. The design pack price depends mainly on the number of rooms and whether full drawings and equipment schedules are needed. As an example, the Design pack option (drawings and schedules for one home) would typically be £395–£795 here.
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
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
We book surveys in Shepton Mallet at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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.
What is included
What a job in Shepton Mallet covers:
- Equipment selection and outdoor unit sizing
- Electrical load for your electrician
- Pipe and drain routes
- Noise check to the nearest neighbour
- Written proposal with options
Nearby
Close to Shepton Mallet, our coverage also includes Wells (5 miles), Glastonbury (8 miles) and Street (10 miles). See all services in Shepton Mallet or heat load surveys and system design across Somerset.

