Underfloor Ventilation Sydney Fixed price, done first visit

Sydney's older suspended timber-floor homes were designed for natural cross-ventilation under the floor — but decades of concrete paths, landscaping and additions have blocked most of those vents. The result is damp subfloor air, timber that swells and rots, insulation that stops working, and a musty smell that never quite leaves. A properly-designed underfloor ventilation system solves it by pulling the humid air out and drawing dry air in through the remaining vents.

We inspect the subfloor first — measure the humidity, check for standing water, note the direction of airflow and the state of the bearers and joists. A single well-placed extraction fan is often enough for a small cottage; larger homes need 2-3 fans and sometimes short ducts to reach dead corners. Humidity-sensor controllers run the fans only when the air is damp, which keeps power use tiny and stops noise complaints.

For heritage terraces we can install the fans on brick-line vents so nothing is visible from the street. Solar-DC fans are an option where there's no easy power source under the floor.