A resin overlay is a viable option when the existing base is stable, level, and draining correctly. A specialist assesses the sub-base condition first, checking for movement, cracking, and drainage falls. If the base has shifted or drainage is pooling, excavation is the safer route. That decision is made before any work is agreed, not discovered mid-job.
Where the base passes inspection, surface preparation begins: cracks are filled, loose material is removed, and any patches are repaired and allowed to cure. This stage determines how well the resin bonds and how long the finished surface holds. Skipping or rushing preparation is the most common reason overlays fail early.
The resin bound layer is then trowelled over the prepared surface, using UV-stable polyurethane resin mixed with natural aggregate. The permeable finish meets UK surface water drainage rules, so most front driveway resurfacing jobs do not require planning permission. Costs for inspection, preparation, and overlay are quoted as separate line items.