Heat load surveys and system design in Woodford Green
Every Woodford Green quote starts with a room-by-room survey rather than a guess from floor area. In London, heat soaks into brick and concrete during the day and comes back out at night, which is when it is hardest to sleep.
For self-builds and extensions in Woodford Green, a standalone design pack can go straight to your builder. Woodford Green sits around 10 miles from central London, inside our London area. Homes in IG8 are all within our coverage.
Prices in Woodford Green
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. 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. 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
A survey in Woodford Green 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. 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 Woodford Green includes:
- Pipe and drain routes
- Electrical load for your electrician
- Room-by-room heat gain and heat loss
- Noise check to the nearest neighbour
- Equipment selection and outdoor unit sizing
Nearby
If you are just outside Woodford Green, we also work in Chingford (2 miles), Walthamstow (2 miles) and Leytonstone (3 miles). See all services in Woodford Green or heat load surveys and system design across London.