Heat load surveys and system design in Blackwood
South Wales summers can be warm and humid, and winters damp, so a reversible system earns its keep all year. Every Blackwood quote starts with a room-by-room survey rather than a guess from floor area.
For self-builds and extensions in Blackwood, a standalone design pack can go straight to your builder. Blackwood is about 19 miles from Bridgend and falls within our Mid Glamorgan coverage. Homes in NP12 are all within our coverage.
Prices in Blackwood
For Blackwood, expect roughly £365 to £1,145 for a standalone design pack, VAT included, adjusted for typical South and Mid Wales rates. 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. Typical Design pack work (drawings and schedules for one home) lands around £365–£745 in this area.
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 Wales, outdoor units of up to 1.5 m³ that meet MCS 020a noise limits are usually permitted development on houses; listed buildings need consent, and in conservation areas a unit cannot go on a wall or roof facing a road.
The survey
Surveys in Blackwood cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. A survey in Blackwood 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.
What is included
Here is what is included on every job in Blackwood:
- Room-by-room heat gain and heat loss
- Pipe and drain routes
- Equipment selection and outdoor unit sizing
- Written proposal with options
- Noise check to the nearest neighbour
Nearby
Nearby, we also cover Gelligaer (2 miles), Risca (6 miles) and Caerphilly (6 miles). See all services in Blackwood or heat load surveys and system design across Mid Glamorgan.

