Heat load surveys and system design across Surrey
For self-builds and extensions in Woking, a standalone design pack can go straight to your builder. Every Woking quote starts with a room-by-room survey rather than a guess from floor area. The South East sees some of the UK's warmest summer days, and south-facing rooms and conservatories feel it first.
Prices in Surrey
Guide prices around Surrey run from £495 to £1,495 for a standalone design pack including VAT. 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
For most houses in Surrey, the outdoor unit is permitted development if it passes the MCS 020(a) noise check (37 dB(A) or less at the nearest neighbouring window) and stays within the size and number limits. We run that check on survey.
The survey
We book surveys in Surrey at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. On a survey in Surrey the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows.
What is included
Included with heat load surveys and system design across Surrey:
- Equipment selection and outdoor unit sizing
- Electrical load for your electrician
- Written proposal with options
- Noise check to the nearest neighbour
- Room-by-room heat gain and heat loss
- Pipe and drain routes
Towns in Surrey
Pick your town for local details, or see every service in Surrey.

