Floor & Tile Cracks
Tile cracks running in a straight line across multiple tiles, concrete slab cracks wider than 1/8 inch, and cracks that re-open after repair indicate the slab beneath them is moving.
What it is
Floor and tile cracks become structural when the slab beneath them moves. Because tile is rigid, slab movement transmits directly through the grout and tile, often along a line.
What causes it
- Slab settlementA section of the slab has dropped.
- Soil moisture cyclesHeave and settle cycles distort the slab.
- Plumbing leak under slabSlab leaks wash out support and cause localized settlement.
Diagnostic checklist
- Trace the crack line across multiple tiles
- Check the corresponding interior walls for drywall cracks
- Listen for hollow sounds when tapping near the crack
When to call a professional
Call when cracks span multiple tiles in a straight line, when concrete slab cracks exceed 1/8 inch.
DIY vs professional
Cosmetic tile replacement without addressing the slab is a guaranteed re-crack. Diagnose the slab condition first.
Arkansas context
Slab homes built between 1980 and 2005 across Pulaski, Saline, and Faulkner counties show this pattern most commonly.
FAQ
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Yes — slab leaks are a leading cause of localized slab settlement in Arkansas.
Foundation problems never fix themselves — they get more expensive.
Every season of Arkansas soil movement widens the cracks. Get a free, no-pressure diagnosis before the scope grows.