Heat load surveys and system design in Barnes
No two rooms in Barnes gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights.
For self-builds and extensions in Barnes, a standalone design pack can go straight to your builder. We cover Barnes as part of London, roughly 6 miles from central London. Postcode districts we cover here include SW13.
Prices in Barnes
Guide prices around Barnes run from £495 to £1,645 for a standalone design pack including VAT. London is one of the dearer parts of the UK for trades, which shows in the range. A standalone design pack is priced on the size of the home, the number of rooms and how much drawing work your builder or architect needs. As an example, the Design pack option (drawings and schedules for one home) would typically be £495–£1,045 here.
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
England's rules let most houses fit an outdoor unit without a planning application, as long as the size, number and MCS 020(a) noise conditions are met. Flats, listed buildings and roof-mounted units are treated differently.
The survey
At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote. Surveys in Barnes cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
What a job in Barnes covers:
- Room-by-room heat gain and heat loss
- Written proposal with options
- Equipment selection and outdoor unit sizing
- Pipe and drain routes
- Noise check to the nearest neighbour
Nearby
Close to Barnes, our coverage also includes Chiswick (1 mile), Putney (2 miles) and Fulham (2 miles). See all services in Barnes or heat load surveys and system design across London.

