Alfresco/Entertaining Spaces | Pergolas & Deckings | Pavements | Feature Fencing & Screens | Retaining Walls | Outdoor Spas & Pools | Driveways | Turf & Plantings | Lighting & Irrigation Installations From raising a garden bed to building a retaining wall for a hillside, retaining walls are one of our specialties. Our retaining wall construction services include (but are not limited to) the following: Timber sleepers Precast concrete Brick or Block Slate