Retaining Walls St Ives Chase

Retaining Walls in St Ives Chase 2075

Our retaining walls service covers timber sleeper, concrete sleeper, masonry block and sandstone walls, from garden terracing to engineered structural walls, built right across St Ives Chase 2075. St Ives Chase is the suburb where post holes most often hit solid rock, so pricing here has to account for rock drilling and chemical-anchored base plates rather than standard concrete footings.

Retaining walls fail from water, not weight. Every wall we build gets an aggregate drainage zone, a subsoil drain to a proper outlet and geofabric to stop the drain silting up — the parts nobody sees and the parts that decide whether the wall is still straight in fifteen years. Heavy Upper North Shore clay holds water and swells, which puts far more lateral pressure on a wall than sandy ground — drainage behind the wall is what makes the difference between a wall that lasts and one that bows. Sandstone sits close to the surface across much of St Ives Chase, so posts are often drilled into rock and chemically anchored rather than concreted into a dug hole.

The ground under St Ives Chase is shallow sandy soil over continuous sandstone shelf, with frequent rock refusal on post holes, and the suburb is built out with large bushland-fringe blocks backing directly onto national park. Those two facts decide footing depth, material choice and how long the job takes, so we measure on site before we price anything in Ku-ring-gai Council's area.

Call 0492 879 796 for a free on-site measure and a fixed written quote.