Heat load surveys and system design in Brecon
For self-builds and extensions in Brecon, a standalone design pack can go straight to your builder. In South and Mid Wales, efficient heating is often as important as cooling.
No two rooms in Brecon gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. Brecon sits around 40 miles from Newtown, inside our Powys area. Postcode districts we cover here include LD3.
Prices in Brecon
In South and Mid Wales, our guide range for heat load surveys and system design is £365–£1,145 for a standalone design pack, including VAT. It is a touch below the UK middle, as trade rates in South and Mid Wales tend to be. The design pack price depends mainly on the number of rooms and whether full drawings and equipment schedules are needed. On our South and Mid Wales figures, the Design pack option (drawings and schedules for one home) is about £365–£745.
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 1 June 2026, Welsh permitted development rules for outdoor units closely match England's: up to 1.5 m³, two units on a detached home, one on other homes, and MCS 020a noise compliance. Listed buildings need consent, and conservation areas have extra restrictions on units facing a road.
The survey
A survey in Brecon 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. We book surveys in Brecon at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included with heat load surveys and system design in Brecon:
- Electrical load for your electrician
- Equipment selection and outdoor unit sizing
- Noise check to the nearest neighbour
- Room-by-room heat gain and heat loss
- Pipe and drain routes
Nearby
Neighbouring places we cover include Tredegar (13 miles), Merthyr Tydfil (14 miles) and Ebbw Vale (14 miles). See all services in Brecon or heat load surveys and system design across Powys.