What is block paving?

Block paving comprises individual units, typically concrete or clay, arranged in geometric patterns across a prepared base. The blocks interlock or rest side by side on a layer of sand and compacted sub-base, allowing movement and drainage rather than forming a rigid single surface. This construction method is common for driveways, patios, and garden paths in and around Cheltenham.

The key distinction from flags (large individual paving slabs) lies in scale and flexibility. Flags are typically much larger, thicker units set individually on mortar or sand. Block paving uses smaller units that work as a system, allowing the surface to settle or shift slightly without cracking, and making individual block replacement straightforward if damage occurs.

Block paving differs from poured concrete, which is mixed and laid wet, forming a monolithic surface that can crack and is harder to repair partially. Blocks also offer better water drainage through their joints, reducing standing water and flooding risk. The surface is popular because blocks come in varied colours and bond patterns (herringbone, stretcher, basket weave), giving homeowners and designers flexibility in appearance.

Durability depends on proper base preparation and installation. A block paving contractor will ensure the sub-base is compacted correctly and the sand layer is level, preventing settlement and ensuring long-term performance.