Heat load surveys and system design in Dolgellau
No two rooms in Dolgellau gain or lose heat in quite the same way, which is exactly why rooms are measured before sizing. In North Wales, an air-to-air system can be an efficient way to heat holiday homes and bungalows, with cooling as a bonus.
For self-builds and extensions in Dolgellau, a standalone design pack can go straight to your builder. Dolgellau sits around 35 miles from Bangor, Gwynedd, inside our Gwynedd area. That includes the LL40 postcode district.
Prices in Dolgellau
In North Wales, our guide range for heat load surveys and system design is £370–£1,195 for a standalone design pack, including VAT. That sits a little below the UK middle, reflecting typical North Wales labour rates. 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 £370–£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
In Wales, outdoor units of up to 1.5 m³ that meet MCS 020a noise limits are usually permitted development on houses; listed buildings need consent, and in conservation areas a unit cannot go on a wall or roof facing a road.
The survey
On a survey in Dolgellau 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. Surveys in Dolgellau cover heat gain, pipe routes, electrics, access and noise to the nearest neighbour, so surprises on the day are rare.
What is included
Included with heat load surveys and system design in Dolgellau:
- Written proposal with options
- Equipment selection and outdoor unit sizing
- Room-by-room heat gain and heat loss
- Pipe and drain routes
- Noise check to the nearest neighbour
Nearby
We also cover Porthmadog (16 miles), Aberystwyth (24 miles) and Pwllheli (24 miles). See all services in Dolgellau or heat load surveys and system design across Gwynedd.

