Heat load surveys and system design across County Down
For self-builds and extensions in Bangor, a standalone design pack can go straight to your builder. No two rooms in Bangor gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. In Northern Ireland, cooling is mostly needed in conservatories and glazed rooms, while efficient heating benefits the whole home.
Prices in County Down
In Northern Ireland, our guide range for heat load surveys and system design is £365–£1,145 for a standalone design pack, including VAT. Labour rates in Northern Ireland 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 Northern Ireland 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
Northern Ireland has its own planning rules for outdoor units, and conservation areas and listed buildings need particular care. We confirm the position for your property before installation.
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. At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote.
What is included
Included with heat load surveys and system design across County Down:
- Noise check to the nearest neighbour
- Equipment selection and outdoor unit sizing
- Room-by-room heat gain and heat loss
- Pipe and drain routes
- Written proposal with options
- Electrical load for your electrician
Towns in County Down
Pick your town for local details, or see every service in County Down.

