Heat load surveys and system design in Cowbridge
No two rooms in Cowbridge gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. Humid summer spells in South Wales make dehumidifying and cooling equally welcome.
For self-builds and extensions in Cowbridge, a standalone design pack can go straight to your builder. Cowbridge sits around 11 miles from Cardiff, inside our South Glamorgan area. Coverage includes CF71.
Prices in Cowbridge
Our South and Mid Wales guide price for heat load surveys and system design is £365–£1,145 for a standalone design pack, VAT included. Labour rates in South and Mid Wales keep this slightly under the national middle. A standalone design pack is priced on the size of the home, the number of rooms and how much drawing work your builder or architect needs. 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
Surveys in Cowbridge cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. 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
Here is what is included on every job in Cowbridge:
- Electrical load for your electrician
- Noise check to the nearest neighbour
- Pipe and drain routes
- Room-by-room heat gain and heat loss
- Written proposal with options
Nearby
Close to Cowbridge, our coverage also includes Llantwit Major (4 miles), Bridgend (7 miles) and Barry (8 miles). See all services in Cowbridge or heat load surveys and system design across South Glamorgan.