Heat load surveys and system design in Gelligaer
Wet South Wales winters make a heat pump's quiet, even heating and dehumidifying mode useful well beyond summer. Every Gelligaer quote starts with a room-by-room survey rather than a guess from floor area.
For self-builds and extensions in Gelligaer, a standalone design pack can go straight to your builder. Our Mid Glamorgan coverage takes in Gelligaer, about 18 miles from Bridgend. That includes the CF82 postcode district.
Prices in Gelligaer
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. Larger homes, more zones and full drawing sets for a builder are what move a design pack towards the upper figure. 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 Gelligaer 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 Gelligaer at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
What a job in Gelligaer covers:
- Equipment selection and outdoor unit sizing
- 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 Gelligaer, our coverage also includes Blackwood (2 miles), Pontypridd (6 miles) and Caerphilly (6 miles). See all services in Gelligaer or heat load surveys and system design across Mid Glamorgan.