Heat load surveys and system design in Hanworth
For self-builds and extensions in Hanworth, a standalone design pack can go straight to your builder. The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights.
Every Hanworth quote starts with a room-by-room survey rather than a guess from floor area. We cover Hanworth as part of London, roughly 12 miles from central London. Coverage includes TW13.
Prices in Hanworth
In London, our guide range for heat load surveys and system design is £495–£1,645 for a standalone design pack, including VAT. That is above the UK middle, mainly because labour and access cost more in London. The design pack price depends mainly on the number of rooms and whether full drawings and equipment schedules are needed. Typical Design pack work (drawings and schedules for one home) lands around £495–£1,045 in this area.
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
We book surveys in Hanworth at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. 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
Every job in Hanworth includes:
- Equipment selection and outdoor unit sizing
- Written proposal with options
- Room-by-room heat gain and heat loss
- Electrical load for your electrician
- Pipe and drain routes
Nearby
Nearby, we also cover Feltham (2 miles), Sunbury-on-Thames (2 miles) and Hounslow (3 miles). See all services in Hanworth or heat load surveys and system design across London.