Heat load surveys and system design in Crowthorne
For self-builds and extensions in Crowthorne, a standalone design pack can go straight to your builder. In the South East, loft rooms and glazed extensions can climb well above the outside temperature on a sunny afternoon.
No two rooms in Crowthorne gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. Crowthorne sits around 10 miles from Reading, inside our Berkshire area. Postcode districts we cover here include RG45.
Prices in Crowthorne
Our South East England guide price for heat load surveys and system design is £495–£1,495 for a standalone design pack, VAT included. 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. As an example, the Design pack option (drawings and schedules for one home) would typically be £495–£945 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
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
A survey in Crowthorne usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes. 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 heat load surveys and system design in Crowthorne:
- Pipe and drain routes
- Electrical load for your electrician
- Written proposal with options
- Equipment selection and outdoor unit sizing
- Noise check to the nearest neighbour
Nearby
If you are just outside Crowthorne, we also work in Camberley (3 miles), Wokingham (3 miles) and Bracknell (3 miles). See all services in Crowthorne or heat load surveys and system design across Berkshire.

