A driveway that cracks within months of being laid is never the material's fault. Plex Group explains the real installation failures that cause new driveways to crack, and what a proper job looks like.
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The sub-base is the compacted hardcore layer that sits beneath your driveway surface. It's what carries the load of vehicles and prevents the surface from moving. When contractors skip this stage, cut corners on depth, or fail to compact it properly, the surface above has no stable foundation. Cracks appear quickly — usually along lines of weakness like edges, joints, or areas of heaviest traffic.
Not all driveway materials are equal, and not all installations are specified correctly for the ground conditions. Resin bonded driveways need a sound concrete or tarmac base — if that base flexes, the resin cracks. Block paving needs a consistent sand bed at the correct depth. If the installer used the wrong materials or skipped the primer on a resin surface, failure is likely within months.
Across Worcestershire, Gloucestershire, and the Vale of Evesham, clay soil is the underlying cause of many driveway failures. Clay expands in wet weather and contracts in dry spells — and a sub-base that isn't deep enough to sit below the frost line and active clay layer will move with the ground. Properly engineered driveways account for this. Cheap installations don't.
Concrete and resin surfaces need adequate curing time before heavy vehicles are driven across them. Driving on a surface too soon permanently weakens it and causes cracking that looks identical to a sub-base failure. If your contractor didn't advise you to keep vehicles off the new surface for at least 72 hours — and ideally longer in cold weather — that's a warning sign about the quality of the installation overall.

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We assess whether the cracking is surface-level or structural. If the sub-base has failed, we excavate, relay with correctly specified MOT Type 1 hardcore, and reinstate the surface to the correct specification. For resin driveways, we identify whether the cracking is in the resin layer or the concrete base beneath. Plex Group carries out driveway repairs and full installations across Worcestershire, Gloucestershire, Oxfordshire, and Warwickshire.
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A driveway that cracks within months of being laid is never the material's fault. Plex Group explains the real installation failures that cause new driveways to crack, and what a proper job looks like.
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