Heat load surveys and system design in Croydon
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. Every Croydon quote starts with a room-by-room survey rather than a guess from floor area.
No two rooms in Croydon gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. Our London coverage takes in Croydon, about 8 miles from central London. That includes the CR0, CR7 and CR9 postcode districts.
Prices in Croydon
Heat load surveys and system design in Croydon typically come in at £495–£1,645 for a standalone design pack including VAT, based on London rates. 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. 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
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
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. 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
Included as standard in Croydon:
- Room-by-room heat gain and heat loss
- Noise check to the nearest neighbour
- Equipment selection and outdoor unit sizing
- Written proposal with options
- Electrical load for your electrician
Nearby
Neighbouring places we cover include South Croydon (1 mile), Carshalton (3 miles) and Mitcham (3 miles). See all services in Croydon or heat load surveys and system design across London.