Water and retaining walls don’t mix well. When drainage behind a retaining wall fails, hydrostatic pressure builds, soil erodes and the wall itself begins to crack, lean or blow out. It’s one of the most preventable forms of structural damage on a property, and one of the most costly when left too long.
At Aqua Solutions, we specialise in retaining wall drainage for residential and commercial properties across New South Wales.
Subsoil drainage is a system designed to intercept and redirect excess groundwater and soil moisture away from structures, foundations and landscaped areas before it causes damage.
When soil becomes saturated and water has nowhere to go, the consequences build quickly:
Perforated pipe installed in a gravel bed behind the wall intercepts groundwater before it builds pressure.
Trenched gravel and pipe systems that redirect water away from the wall and off the site entirely.
Openings at the base of the wall that allow trapped water to escape, relieving hydrostatic pressure.
Aggregate and geotextile systems built into or behind the wall to encourage free water movement through the soil.
Graded drainage paths that encourage water to flow away from the wall naturally.
The right solution depends on your wall type, soil conditions and site layout.
We assess all of these before recommending anything
Based in Allambie Heights, we work with residential and commercial clients across Sydney and New South Wales including Manly, Balgowlah Heights, Dee Why, Frenchs Forest, Seaforth, North Sydney and surrounding areas.
If you’re seeing the early signs of a retaining wall drainage problem, get it assessed now before it becomes a structural repair.
