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Technician inspecting and maintaining a concrete expansion joint

Maintenance of Expansion Joints: Keep Your Concrete Protected

May 29, 20252 min read

Concrete structures depend on expansion joints to move safely over time. But like any other part of your property, they need upkeep. The maintenance of expansion joints is essential to prevent water infiltration, debris buildup, and cracking that can compromise your concrete surfaces.

At WMG Caulking, we provide expert joint maintenance services for residential and commercial properties in Omaha, NE, and the surrounding areas.

Why Expansion Joint Maintenance Matters

Expansion joints:

  • Absorb stress from shifting and settling

  • Prevent surface cracking

  • Keep concrete slabs working independently

Without proper maintenance, even well-installed joints can fail. Regular inspections and sealing are key to concrete longevity.

Maintenance of Expansion Joints: What to Look For

1. Inspect for Sealant Cracking or Gaps

Old or worn sealant may:

  • Crack and pull away from joint edges

  • Allow water and debris to seep in

  • Lead to rusting of reinforcing steel or sub-base erosion

Annual inspections help spot these issues early.

2. Clear Out Debris

Leaves, dirt, and small stones often collect in joints, especially in outdoor spaces. This buildup prevents expansion and contraction, increasing pressure on the slab.

Use compressed air or a vacuum to remove debris during regular expansion joint maintenance.

3. Reseal as Needed

If the sealant is cracking, brittle, or missing, it’s time to reseal. Use commercial-grade joint sealants that provide flexibility, weather resistance, and durability.

At WMG Caulking, we offer resealing solutions that extend the life of your concrete structures.

Signs That Maintenance Is Overdue

  • Water pooling near joints

  • Grass or weeds growing inside joints

  • Visible joint separation or exposed filler

  • Small cracks radiating from joint areas

These are all indicators that your joints need immediate attention.

Prevent Damage with Professional Maintenance

Regular maintenance of expansion joints is a small task that prevents significant problems. Whether it's your garage, warehouse, or sidewalk, trust WMG Caulking to keep your joints sealed and your concrete protected.

Maintenance of expansion joints
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Cracks, gaps, and surface wear weaken concrete, causing costly damage. You need a solution that lasts. That’s where we come in. Our expert team specializes in sealing and caulking, ensuring durable surfaces that withstand time and weather.

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