Heat load surveys and system design in St Austell
For self-builds and extensions in St Austell, a standalone design pack can go straight to your builder. Coastal breezes help, but inland South West towns and glazed rooms still see uncomfortable peaks.
No two rooms in St Austell gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. St Austell sits around 13 miles from Truro, inside our Cornwall area. Postcode districts we cover here include PL25.
Prices in St Austell
Guide prices around St Austell run from £395 to £1,250 for a standalone design pack including VAT. It sits near the middle of UK prices. 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 South West England figures, the Design pack option (drawings and schedules for one home) is about £395–£795.
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
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. On a survey in St Austell 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 as standard in St Austell:
- Equipment selection and outdoor unit sizing
- Written proposal with options
- Pipe and drain routes
- Room-by-room heat gain and heat loss
- Electrical load for your electrician
Nearby
Neighbouring places we cover include Bodmin (9 miles), Truro (13 miles) and Liskeard (16 miles). See all services in St Austell or heat load surveys and system design across Cornwall.