Topsoil is the uppermost layer of soil that is teeming with nutrients and organic matter. It's where your plants' roots find their sustenance. Choosing the right topsoil and building stone is the foundation of a successful garden: Assess Your Soil Needs, Quality Check, Test Your Soil, Quantity Calculation, Purchase Top-Quality Topsoil, Delivery and Placement, Mixing and Planting. Earthworks UK Ltd. is a premier provider of recycled aggregates, building stones, topsoil, and waste removal services.