Block Paving Installation: What to Expect Step by Step

Block paving is made of small concrete units that carry load by locking against one another. A car wheel pushes down on a few blocks, and friction through the sanded joints spreads that force across many more. That is why the pattern, the joint sand and the edges matter so much: they are what makes loose blocks behave like one surface.

Herringbone patterns lock best under turning vehicles, which is why they are the usual choice for driveways. Stretcher bond and basketweave look good on paths and patios where loads are lighter.

The existing surface and soft ground are removed to a depth that suits the use and the soil. Clay, made ground and old soakaways all change how deep we go. Levels are set so water falls away from the house, the finished surface stays below the damp proof course, and it meets the pavement, garage and doors cleanly.

This is also when drainage is planned. A driveway that slopes toward the house needs a channel drain or a permeable design, and those decisions are made before any stone goes in.

Crushed stone is spread in layers and compacted with a plate or roller after each one. Compaction in thin layers is the whole point. Thick layers compacted once leave soft pockets that show up later as dips in the wheel tracks. Our driveway sub-base guide explains depths and materials in more detail.

Before any main blocks go down, the perimeter is fixed. Kerbs or a soldier course of blocks are bedded on concrete and haunched on the outside face. The edge holds the whole field of paving in, so it has to be solid and fully set before the rest is laid against it.

A layer of sharp sand is screeded to an even depth over the sub-base. The blocks are laid on top from a fixed starting edge, drawing from several packs at once so colour is blended across the drive rather than in patches. Lines are checked as the work progresses to keep the pattern straight.

Blocks are then cut to fit against edges, drains, manhole covers and walls. Small slivers of block break out easily, so good installers plan the pattern to avoid tiny cuts wherever possible.

Kiln-dried sand is brushed across the surface and a plate compactor with a protective pad is run over the blocks. That settles them into the bed and drives sand down into the joints. It is repeated until the joints are full. Joints that are left half empty are the most common reason block paving loosens and grows weeds.

The time depends on the area, access, how much digging and removal is needed, and the weather. We give you a timetable with the written quote after measuring on a free site visit. The concrete behind the edges needs time to harden, so we will tell you when the drive is ready for cars.