Ku-ring-gai is famous for large Federation homes on big, bush-backed blocks. The heavy tree canopy and shade keep gardens and footings damp for much of the year, subfloors stay moist with little airflow, and clay soils hold water against the walls. Add aged damp-proof courses and rising damp and persistent mould are common.
On these shaded, moisture-holding blocks the cause is often a mix of a failed course and a wet subfloor. We diagnose both, treat the walls with DPC injection where needed and improve subfloor ventilation, finishing in a breathable render.
Ku-ring-gai's grand Federation homes sit on heavily treed, shaded blocks where the ground stays damp and original damp-proof courses have aged. Moisture rises through the brick leaving salts that blister paint and blow plaster, and shaded, poorly ventilated subfloors keep the lower walls and air persistently moist.
Ku-ring-gai's bushland blocks are shaded and damp-prone underfloor. We install subfloor ventilation to move the moist air out.
Our rising damp treatment injects a fresh damp-proof course to stop moisture rising.
We strip and re-coat with salt-resistant replastering for a lasting finish.
Shaded, humid rooms grow mould here; our mould removal clears it at the cause.
We waterproof and tank retaining walls and wet areas against ingress.
Book a free damp assessment for a clear diagnosis and quote.
The Upper North Shore is full of large Federation homes on shaded, bush-backed blocks with clay soils. Heavy canopy keeps the ground damp, subfloors stay moist and damp-proof courses have aged, so rising damp and mould are common in Gordon, Pymble and Wahroonga.
All of them — including Gordon, Pymble, Wahroonga, Turramurra, St Ives, Lindfield, Killara, Roseville, Warrawee, South Turramurra. If your suburb is not listed, call us; we cover the whole area.
On shaded Ku-ring-gai blocks recurring mould is usually fed by a damp subfloor or rising damp that keeps the walls moist. Cleaning the surface never lasts because the moisture source is still there. We find and treat the source so it stops coming back.