Inspect Garage Floor for Cracks
Why It Matters
Garage floor cracks let moisture, radon, and pests into your garage and potentially your home. Sealing them is quick prevention.
Quick Guide
- 1
Gather your tools and materials
You'll need: basic tools. Materials required: Concrete crack filler.
- 2
Perform the inspect garage floor for cracks
Check garage floor for cracks, stains, and settling. Fill small cracks before they grow.
- 3
Verify and clean up
Check that the work was completed correctly and clean up your workspace. If significant settling or cracks wider than 1/4 inch, consider calling a professional.
Tools & Materials
Materials
- Concrete crack filler
Community Tips
Hairline cracks under 1/8 inch wide typically indicate normal concrete settling and don't require immediate repair, but cracks wider than 1/4 inch should be filled to prevent water infiltration and further deterioration. Sikaflex Self-Leveling Polyurethane ($12-18) works better than standard concrete caulk in garage floors because it accommodates the slight movement common in slabs subject to temperature changes.
Avoid filling cracks before identifying the root cause—actively spreading cracks signal foundation issues or unstable soil beneath the slab that filling alone won't solve. If cracks are growing visibly or accompanied by floor heaving, consult a structural engineer before applying any filler product.
A standard 10-ounce cartridge of concrete crack filler like Red Devil Concrete Crack Filler ($6-10) covers approximately 50-75 linear feet of hairline cracks, making it an economical first line of defense for most residential garage floors before considering costlier resurfacing solutions. ---