Heat load surveys and system design in Wrexham
Every Wrexham quote starts with a room-by-room survey rather than a guess from floor area. North Wales has mild, damp weather for much of the year, so efficient heating and dehumidifying are big benefits.
No two rooms in Wrexham gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. We cover Wrexham and the rest of Clwyd, including Buckley and Deeside. We cover LL13 and the streets around them.
Prices in Wrexham
Our North Wales guide price for heat load surveys and system design is £370–£1,195 for a standalone design pack, VAT included. That sits a little below the UK middle, reflecting typical North Wales labour rates. 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. Typical Design pack work (drawings and schedules for one home) lands around £370–£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
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
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. We book surveys in Wrexham at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Here is what is included on every job in Wrexham:
- Pipe and drain routes
- Electrical load for your electrician
- Noise check to the nearest neighbour
- Room-by-room heat gain and heat loss
- Equipment selection and outdoor unit sizing
Nearby
If you are just outside Wrexham, we also work in Brymbo (3 miles), Rhosllannerchrugog (4 miles) and Buckley (9 miles). See all services in Wrexham or heat load surveys and system design across Clwyd.