Heat load surveys and system design in Castlereagh
Northern Ireland's mild, damp climate makes efficient heating and dehumidifying the main benefits for most homes. For self-builds and extensions in Castlereagh, a standalone design pack can go straight to your builder.
No two rooms in Castlereagh gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. We cover Castlereagh as part of County Antrim, roughly 2 miles from Belfast. Coverage includes BT5 and BT6.
Prices in Castlereagh
Heat load surveys and system design in Castlereagh typically come in at £365–£1,145 for a standalone design pack including VAT, based on Northern Ireland rates. 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. For reference, the Design pack option in Castlereagh (drawings and schedules for one home) usually comes to 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
Planning rules for outdoor units in Northern Ireland differ from Great Britain's, so we check your property with you and the council where needed.
The survey
Surveys in Castlereagh cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. We book surveys in Castlereagh at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Every job in Castlereagh includes:
- Room-by-room heat gain and heat loss
- Written proposal with options
- Noise check to the nearest neighbour
- Pipe and drain routes
- Electrical load for your electrician
Nearby
Nearby, we also cover Belfast (2 miles), Holywood (5 miles) and Newtownabbey (6 miles). See all services in Castlereagh or heat load surveys and system design across County Antrim.

