Heat load surveys and system design in Mitcham
No two rooms in Mitcham gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. 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 Mitcham, a standalone design pack can go straight to your builder. Mitcham sits around 7 miles from central London, inside our London area. That includes the CR4 postcode district.
Prices in Mitcham
Budget around £495–£1,645 for a standalone design pack including VAT for heat load surveys and system design in and around Mitcham. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. 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. For reference, the Design pack option in Mitcham (drawings and schedules for one home) usually comes to 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
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
Surveys in Mitcham cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare. We book surveys in Mitcham at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Here is what is included on every job in Mitcham:
- Room-by-room heat gain and heat loss
- Noise check to the nearest neighbour
- Equipment selection and outdoor unit sizing
- Pipe and drain routes
- Electrical load for your electrician
Nearby
Close to Mitcham, our coverage also includes Morden (1 mile), Wimbledon (2 miles) and Streatham (2 miles). See all services in Mitcham or heat load surveys and system design across London.

