Heat load surveys and system design across West Sussex
Every Crawley quote starts with a room-by-room survey rather than a guess from floor area. For self-builds and extensions in Crawley, a standalone design pack can go straight to your builder. The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first.
Prices in West Sussex
Our South East England guide price for heat load surveys and system design is £495–£1,495 for a standalone design pack, VAT included. South East England is one of the dearer parts of the UK for trades, which shows in the range. Larger homes, more zones and full drawing sets for a builder are what move a design pack towards the upper figure. On our South East England figures, the Design pack option (drawings and schedules for one home) is about £495–£945.
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
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
The survey
Surveys in West Sussex cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. 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.
What is included
Included with heat load surveys and system design across West Sussex:
- Pipe and drain routes
- Electrical load for your electrician
- Equipment selection and outdoor unit sizing
- Noise check to the nearest neighbour
- Written proposal with options
- Room-by-room heat gain and heat loss
Towns in West Sussex
Pick your town for local details, or see every service in West Sussex.