28 June 2026

Sunken paving? When re-laying is enough — and when it isn't

Dips in the patio, water running towards the facade: how to spot subsidence, what causes it, and when re-laying suffices or renewing is smarter.

You recognise sunken paving by dips and loose stones, puddles that linger after rain, or — the most important signal — water running towards the facade instead of away from it. That last one is more than a cosmetic flaw: moisture standing against the facade eventually causes damp problems indoors. Raising the paving is many times cheaper than repairing damp damage.

The cause almost always sits below the stones: washed-out or poorly compacted paving sand, tree roots, an old cable or sewer trench that keeps settling, or ground that settles as a whole — on clay and peat soil that is the rule rather than the exception. As long as the stones themselves are still good, re-laying and raising suffices: stones out, ground raised and levelled, the same stones back in tightly. That costs € 15 to € 35 per m² — an average job comes to € 400 to € 1,800.

Re-laying is not always enough. If the stones are broken, porous or badly worn, or you want a different size or material anyway, renewing makes more sense: € 40 to € 100 per m² all-in. For a sunken driveway there is an extra consideration: if the subsidence comes from too light a foundation, re-laying only fixes the symptom and a heavier foundation layer belongs underneath.

In doubt? Have a contractor assess the spot and ask for a quote for both routes — re-laying and renewing — with the cause of the subsidence named. Set the amounts against the price index to see immediately whether the price fits the market.