Richmond’s clay soil expands when wet and contracts during dry spells, which stresses any surface laid over an inadequate sub-base. The on-site evaluation measures existing grade, identifies low spots where water collects, and determines the minimum sub-base depth needed to handle freeze-thaw movement. No phone estimate can replace that visit.
Design decisions, court orientation, drainage outlet location, surface slope direction, are confirmed during the evaluation and documented in the written scope. That scope becomes the basis for the itemised written estimate, so every cost category ties back to a specific site condition rather than a generic allowance.
Excavation and sub-base compaction are carried out to the specified depth and density before any concrete or asphalt is poured. We arrange local builders who follow the compaction standard set in the scope, and the sub-base is inspected before the pour phase begins to confirm it meets the agreed specification.