The Hawkesbury holds some of the country's oldest colonial buildings, set on Hawkesbury River flats. Early brick and stone homes were built with no damp-proof course on alluvial, flood-prone ground with a high water table. Constant ground moisture and river salts make rising damp and salt damp very common and often severe.
On river-flat ground the water table is the driver, so the finish must breathe. We diagnose the source, install a damp-proof course suited to old brick or stone, and finish with a lime or salt-resistant render so the walls dry rather than trapping salt.
The Hawkesbury's historic homes sit on river flats and floodplain near the river, on damp, low-lying ground with a high water table and little damp-proofing. Moisture rises readily through old brick and stone leaving salts that blister paint and blow plaster, and flood-prone ground keeps the walls and subfloors persistently wet.
On the Hawkesbury's river flats, ground moisture and flood-prone soils keep subfloors wet. We fit an underfloor ventilation system to dry the space.
Colonial-era brick and stone homes here rarely have a working damp course. Our damp-proof course injection stops the rise.
We re-coat with a breathable salt-resistant plaster system suited to heritage walls.
River-flat humidity drives mould; our mould remediation clears it and fixes the cause.
For flood-exposed and below-ground walls we apply tanking and waterproofing.
A free on-site inspection gives a clear cause and fixed price.
The Hawkesbury has some of Australia's oldest colonial homes on Hawkesbury River flats — early brick and stone with no damp-proof course, on alluvial ground with a high water table. Constant ground moisture and river salts make rising and salt damp common in Windsor and Richmond.
All of them — including Windsor, Richmond, Pitt Town, McGraths Hill, South Windsor, Bligh Park, Wilberforce, North Richmond. If your suburb is not listed, call us; we cover the whole area.
Yes. Early Hawkesbury homes need a damp-proof method suited to old brick or stone and a breathable lime render rather than cement, so the historic walls keep drying. We match the treatment to the building and its high-water-table setting.