The surface moved
Dips, trip points and movement usually require a look at support, grade and edges.
Start with the symptom
These are service guides—not generic articles—so you can move directly from the visible issue to causes, process and common questions.
Dips, trip points and movement usually require a look at support, grade and edges.
Standing water, washout and foundation-directed runoff should be corrected before finishing work.
Isolate damaged units and stabilize the surface before renewing joints.
Clean and evaluate first, then choose joint renewal, treatment or a protective finish.
A useful first message
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