Heat load surveys and system design in Salisbury
Damp South West winters make the dehumidifying side of a heat pump almost as useful as its cooling. For self-builds and extensions in Salisbury, a standalone design pack can go straight to your builder.
Every Salisbury quote starts with a room-by-room survey rather than a guess from floor area. Salisbury sits around 34 miles from Swindon, inside our Wiltshire area. We cover SP1 and the streets around them.
Prices in Salisbury
For Salisbury, expect roughly £395 to £1,250 for a standalone design pack, VAT included, adjusted for typical South West England rates. That is broadly in line with national guide prices. Larger homes, more zones and full drawing sets for a builder are what move a design pack towards the upper figure. As an example, the Design pack option (drawings and schedules for one home) would typically be £395–£795 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
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
On a survey in Salisbury 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. We book surveys in Salisbury at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Every job in Salisbury includes:
- Noise check to the nearest neighbour
- Pipe and drain routes
- Room-by-room heat gain and heat loss
- Equipment selection and outdoor unit sizing
- Written proposal with options
Nearby
Neighbouring places we cover include Amesbury (7 miles), Andover (16 miles) and Totton (17 miles). See all services in Salisbury or heat load surveys and system design across Wiltshire.