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Learn · Maintenance

Spring Concrete Checklist After a Wisconsin Winter

The short answer

After the thaw, walk your concrete and look for new lips at joints, water standing after rain, slabs tipping toward the house, gaps at the stoop, open or cracked joints, and salt damage on the garage floor. Problems that let water under a slab get worse every freeze-thaw cycle, so spring is the time to fix them.

By Rob Diederich, owner · Updated
4 min read

Walk it with this list

  • New lips at joints. Anything you can catch a toe on is a trip hazard and a sign a slab moved.
  • Standing water a few hours after rain, especially near the garage door or the foundation.
  • Slabs tipping toward the house. Put a level on the patio and walks next to the foundation.
  • A gap at the stoop where it meets the house, or a stoop leaning outward.
  • Open joints with dirt or weeds growing in them, and failed old sealant.
  • Garage floor damage from salt and brine: flaking, pitting or dust.
  • Downspouts that end on or next to a slab.

Fix now vs. watch

What you seeWhat to do
Trip lip over 1/4 inchFix now; it's a fall risk and usually still growing
Patio or walk tipping toward the houseFix now; it sends water at the foundation
Open or failed jointsSeal this season, before the next winter
Hairline cracks with no height changeSeal and watch
Salt-damaged garage floorPlan a coating before the next winter

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