Heat load surveys and system design in Putney
The urban heat island effect means London bedrooms can stay uncomfortably warm on summer nights. For self-builds and extensions in Putney, a standalone design pack can go straight to your builder.
No two rooms in Putney gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. Our London coverage takes in Putney, about 5 miles from central London. Homes in SW15 are all within our coverage.
Prices in Putney
Our London guide price for heat load surveys and system design is £495–£1,645 for a standalone design pack, VAT included. London is one of the dearer parts of the UK for trades, which shows in the range. The design pack price depends mainly on the number of rooms and whether full drawings and equipment schedules are needed. On our London figures, the Design pack option (drawings and schedules for one home) is about £495–£1,045.
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
On a survey in Putney 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. A survey in Putney usually takes one to two hours. We measure the rooms, check the walls and the consumer unit, agree the outdoor unit position with you and photograph the pipe routes.
What is included
Every job in Putney includes:
- Noise check to the nearest neighbour
- Equipment selection and outdoor unit sizing
- Pipe and drain routes
- Electrical load for your electrician
- Written proposal with options
Nearby
Neighbouring places we cover include Barnes (2 miles), Fulham (2 miles) and Wimbledon (3 miles). See all services in Putney or heat load surveys and system design across London.