Heat load surveys and system design in Washington
Cooler North East summers mean cooling is mostly needed in lofts, conservatories and rooms with large windows. Every Washington quote starts with a room-by-room survey rather than a guess from floor area.
No two rooms in Washington gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. Washington lies roughly 6 miles from Newcastle upon Tyne, and we cover it as part of Tyne and Wear. Postcode districts we cover here include NE37 and NE38.
Prices in Washington
For Washington, expect roughly £365 to £1,145 for a standalone design pack, VAT included, adjusted for typical North East England rates. Labour rates in North East England keep this slightly under the national middle. The design pack price depends mainly on the number of rooms and whether full drawings and equipment schedules are needed. As an example, the Design pack option (drawings and schedules for one home) would typically be £365–£745 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 Washington 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 Washington at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.
What is included
Included as standard in Washington:
- Room-by-room heat gain and heat loss
- Pipe and drain routes
- Written proposal with options
- Electrical load for your electrician
- Noise check to the nearest neighbour
Nearby
If you are just outside Washington, we also work in Chester-le-Street (4 miles), Felling (4 miles) and Houghton-Le-Spring (5 miles). See all services in Washington or heat load surveys and system design across Tyne and Wear.

