Heat load surveys and system design in Ruislip
No two rooms in Ruislip gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. Many London homes are flats or tall terraces, where heat rises to the top floor and the bedrooms bear the brunt of a hot spell.
For self-builds and extensions in Ruislip, a standalone design pack can go straight to your builder. We cover Ruislip as part of London, roughly 14 miles from central London. We cover HA4 and the streets around them.
Prices in Ruislip
In London, our guide range for heat load surveys and system design is £495–£1,645 for a standalone design pack, including VAT. 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. 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
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
The survey
A survey in Ruislip 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. Surveys in Ruislip cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included as standard in Ruislip:
- Equipment selection and outdoor unit sizing
- Pipe and drain routes
- Noise check to the nearest neighbour
- Electrical load for your electrician
- Written proposal with options
Nearby
If you are just outside Ruislip, we also work in Northolt (3 miles), Uxbridge (3 miles) and Harrow (4 miles). See all services in Ruislip or heat load surveys and system design across London.

