Expansion Joint Caulking
Concrete Joint Protection
Seal Cracks, Stop Damage Before It Spreads
Concrete is strong, but it isn’t indestructible. Over time, water can enter joints and small cracks, softening or eroding the soil beneath slabs. As the ground shifts or settles, unsupported concrete begins to crack, sink, or become uneven. Weather exposure, freeze-thaw cycles, poor drainage, and natural soil movement all contribute to concrete damage. Left unaddressed, small cracks can allow more moisture below the surface, accelerating deterioration and leading to larger structural issues.
Does your concrete need caulking?
Common Signs
There are a few signs that tell you your concrete joint sealant may be failing, which include:
- Gaps between the sealant and joint
- Cracking or Splitting
- Caulk pulling away from sides
- Bubbling or degradation
- Concrete is unsealed
What is NexusPro®?
NexusPro® is a silicone-based sealant used to protect concrete cracks and joints where water commonly enters. As concrete expands and contracts, unsealed joints can allow moisture below the surface, leading to erosion and further damage. NexusPro® is designed to remain flexible over time, helping maintain a tight seal even as conditions change.
By sealing these vulnerable areas, NexusPro® helps slow deterioration and extend the life of both new and existing concrete surfaces, including driveways, sidewalks, patios, and pool decks. The result is cleaner-looking concrete and added protection against future cracking and settlement.
The Power of NexusPro®
Before & Afters
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After
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After
Expansion Joint Restored
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After
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After
Porch Stoop Cracks Repaired
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After
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After
Cracks in Driveway Sealed
Common Questions
Frequently Asked Questions
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An expansion joint is a planned gap in a concrete slab that allows the concrete to expand and contract with temperature changes. By relieving built-up stress, expansion joints help prevent uncontrolled cracking and damage over time.
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Yes, concrete can crack without proper expansion joints. As concrete expands and contracts with temperature changes, stress builds up inside the slab. Without joints to absorb that movement, the concrete can crack and worsen over time. Properly installed expansion joints help prevent damage and extend the life of concrete surfaces.
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After lifting and leveling concrete with PolyLevel®, we seal cracks and control joints using NexusPro® silicone-based sealant. This helps protect the concrete from moisture and movement that can lead to future damage. NexusPro® holds up to sun exposure, cures quickly, and provides long-lasting protection that helps keep concrete looking and performing better over time.
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Yes. Sealing cracks and joints in your driveway, including expansion joints, helps prevent water from seeping beneath the concrete. Keeping moisture out reduces soil erosion below the slab, which can lead to cracking, settling, and long-term damage.