Heat load surveys and system design in Dorchester
No two rooms in Dorchester gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. South West summers are milder on the coast, but sheltered towns and south-facing rooms still overheat, and efficient winter heating matters just as much.
For self-builds and extensions in Dorchester, a standalone design pack can go straight to your builder. Dorchester is about 24 miles from Bournemouth and falls within our Dorset coverage. Postcode districts we cover here include DT1.
Prices in Dorchester
In South West England, our guide range for heat load surveys and system design is £395–£1,250 for a standalone design pack, including VAT. That is close to the UK middle for this kind of work. 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 £395–£795 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
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
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. On a survey in Dorchester 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
What a job in Dorchester covers:
- Noise check to the nearest neighbour
- Written proposal with options
- Pipe and drain routes
- Room-by-room heat gain and heat loss
- Electrical load for your electrician
Nearby
Close to Dorchester, our coverage also includes Weymouth (7 miles), Wareham (14 miles) and Bridport (14 miles). See all services in Dorchester or heat load surveys and system design across Dorset.

