Heat load surveys and system design in Nelson
For self-builds and extensions in Nelson, a standalone design pack can go straight to your builder. Damp North West weather makes the dehumidifying mode of a modern split system genuinely useful for much of the year.
No two rooms in Nelson gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. We cover Nelson as part of Lancashire, roughly 21 miles from Preston. Coverage includes BB9.
Prices in Nelson
Our North West England guide price for heat load surveys and system design is £375–£1,195 for a standalone design pack, VAT included. It is a touch below the UK middle, as trade rates in North West England tend to be. Larger homes, more zones and full drawing sets for a builder are what move a design pack towards the upper figure. On our North West England figures, the Design pack option (drawings and schedules for one home) is about £375–£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 29 May 2025, England's permitted development rules allow larger outdoor units (up to 1.5 m³) and no longer require a 1 m gap to the boundary, provided the MCS 020(a) noise check is met. Listed buildings and pitched-roof installs still need permission.
The survey
We book surveys in Nelson at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. Surveys in Nelson cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included with heat load surveys and system design in Nelson:
- Pipe and drain routes
- Equipment selection and outdoor unit sizing
- Written proposal with options
- Room-by-room heat gain and heat loss
- Electrical load for your electrician
Nearby
If you are just outside Nelson, we also work in Burnley (3 miles), Clitheroe (8 miles) and Accrington (9 miles). See all services in Nelson or heat load surveys and system design across Lancashire.