Heat load surveys and system design in Garston
Damp North West weather makes the dehumidifying mode of a modern split system genuinely useful for much of the year. Every Garston quote starts with a room-by-room survey rather than a guess from floor area.
For self-builds and extensions in Garston, a standalone design pack can go straight to your builder. Garston sits around 6 miles from Liverpool, inside our Merseyside area. Homes in L19 are all within our coverage.
Prices in Garston
Budget around £375–£1,195 for a standalone design pack including VAT for heat load surveys and system design in and around Garston. That sits a little below the UK middle, reflecting typical North West England labour rates. Larger homes, more zones and full drawing sets for a builder are what move a design pack towards the upper figure. Typical Design pack work (drawings and schedules for one home) lands around £375–£745 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
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
A survey in Garston 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. 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.
What is included
Included as standard in Garston:
- Electrical load for your electrician
- Noise check to the nearest neighbour
- Room-by-room heat gain and heat loss
- Pipe and drain routes
- Equipment selection and outdoor unit sizing
Nearby
Neighbouring places we cover include Speke (2 miles), Ellesmere Port (4 miles) and Bebington (5 miles). See all services in Garston or heat load surveys and system design across Merseyside.