Retaining & Sandstone Walls, Earth Moving, Site Drainage & Trenching. Excavating & Earth Moving Contractors - Toowoomba, QLD . Type: Demolition. Service: Footings, Retaining Walls, Shed Pads, Site Clean-ups, Site Cuts. Place: Driveways, Septic Tanks. Specialty: Bulk Earthworks, Detailed Earthworks. Brand: ASV Posi-Track. Material: Road Base, Sand, Sandstone, Top Soil. Payment Method: Bpay, Cash, Direct Debit, Money Order. Equipment: Laser Levels, Levelling Bars, Rippers, Skid Steer Loaders, Spreader Bars. Assurance: Quality Assurance Systems. Ownership: Owner Operated