The Blue Mountains sit high and cool with some of the highest rainfall around Sydney, plus mist, fog and deep shaded valleys. Older weatherboard and brick homes on these damp, shaded blocks stay cold and moist, subfloors rarely dry out, and aged damp-proof courses let moisture rise. The cool, wet climate also makes mould one of the most persistent problems in the mountains.
In a cold, wet climate the cause is often a mix of rising damp, a chronically damp subfloor and condensation. We diagnose all three, treat the walls and subfloor at the source, and finish in a breathable render so homes can finally dry out and stay mould-free.
Up in the Blue Mountains, cold winters, high rainfall and heavy shade keep the ground and walls damp for long stretches. Moisture rises through aged stone and brick leaving salts that blister paint and blow plaster, and the cold, damp air feeds persistent mould in homes that struggle to dry out.
The Mountains' cool, wet climate keeps subfloors damp for much of the year. We install subfloor ventilation to dry the underfloor and cut condensation.
Older brick and stone homes here hold ground moisture. Our rising damp repair injects a new damp course to stop the rise.
We re-coat with a breathable salt-resistant plaster system that copes with the cold-climate damp.
Cold, damp winters drive heavy mould up here; our mould remediation clears it and fixes the moisture and airflow behind it.
For high-rainfall exposure we waterproof and tank below-ground walls and wet areas.
Book a free on-site inspection with a clear diagnosis.
The Blue Mountains sit high and cool with very high rainfall, mist and shaded valleys. Older weatherboard and brick homes on damp, shaded blocks stay moist, subfloors rarely dry, and aged damp-proof courses let moisture rise, so rising damp and mould are common in Katoomba, Leura and Springwood.
All of them — including Katoomba, Leura, Springwood, Blackheath, Wentworth Falls, Glenbrook, Lawson, Hazelbrook, Faulconbridge, Mount Victoria, Winmalee. If your suburb is not listed, call us; we cover the whole area.
In the cool, wet Blue Mountains climate, recurring mould is usually fed by a damp subfloor, rising damp or condensation that keeps surfaces moist. Wiping it off never lasts because the moisture source remains. We find and treat the source so it stops returning.