Heat load surveys and system design in Surbiton
London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset. Every Surbiton quote starts with a room-by-room survey rather than a guess from floor area.
For self-builds and extensions in Surbiton, a standalone design pack can go straight to your builder. We cover Surbiton as part of London, roughly 11 miles from central London. Postcode districts we cover here include KT5 and KT6.
Prices in Surbiton
Budget around £495–£1,645 for a standalone design pack including VAT for heat load surveys and system design in and around Surbiton. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. Larger homes, more zones and full drawing sets for a builder are what move a design pack towards the upper figure. 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
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
We book surveys in Surbiton at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. On a survey in Surbiton 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.
What is included
Included with heat load surveys and system design in Surbiton:
- Room-by-room heat gain and heat loss
- Noise check to the nearest neighbour
- Electrical load for your electrician
- Equipment selection and outdoor unit sizing
- Pipe and drain routes
Nearby
Neighbouring places we cover include New Malden (2 miles), Esher (3 miles) and Ewell (4 miles). See all services in Surbiton or heat load surveys and system design across London.