Air Conditioning Bilgola Plateau

The plateau position provides some protection from the worst salt spray but still receives coastal moisture. Marine-grade coatings are a sensible precaution. The eastern brow above the Bilgola Bends gets the nor'easter with real salt in it, while the middle of the plateau around the shops is far enough back that the coating is a preference rather than a necessity.

Bilgola Plateau is predominantly freestanding houses on good-sized blocks, providing flexibility for system design and outdoor unit placement. The 1960s and 1970s homes have pitched tile roofs that take ducted systems comfortably, and side passages wide enough that the condenser can sit at ground level away from the neighbour's bedroom window.

Flatter than the beach suburb below, with generally good vehicle access for installers. Most jobs need no crane and the pipe runs are short, so a Bilgola Plateau quote should sit well below a Bilgola Beach one for the same equipment, and an access surcharge here should come with a specific reason.

The plateau catches north-westerly summer winds carrying inland heat from the Hawkesbury. North and west-facing rooms reach peak loads later in the day, so afternoon cooling demand is sustained well past 6pm. A heat-load calculation should reflect that late peak, and an inverter that runs efficiently at part load through the evening is the right fit.

Bush gullies cut into the plateau on several sides and the tree cover is dense, so condensers collect leaf and bark and sit in shade for much of the day. Shade helps efficiency, but a top guard, clear airflow around the unit and a hose-down each season keep the coil doing its job.