
What Is Concrete Caulking?
Concrete caulking seals joints, cracks and gaps using a flexible material that moves as the slab expands and contracts. Closing off these gaps helps stop water and deicing salts from washing into and eroding the supporting soil below.
Caulking counts as preventative maintenance, not just a cosmetic fix. When your concrete is still level, joint sealing may be all that’s necessary. If the slabs have already settled or become uneven, they should be lifted first and sealed afterward for longer-lasting protection.

Why NexusPro® Outlasts Hardware-Store Caulk
NexusPro® is a self-leveling polyurethane sealant engineered to stay flexible through seasonal expansion and contraction. It also stands up to UV exposure, water and deicing salts, making it better suited to the conditions concrete faces in Sioux Falls.
Unlike store-bought caulk, NexusPro® is professionally installed by Blackburn Foundation Repair-trained crews who remove failed material, prepare the joint and apply the correct amount of sealant for a clean, durable result.

Our Concrete Caulking & Joint Sealing Solution
For sealing concrete joints, cracks and gaps
NexusPro®
NexusPro® is our proprietary, self-leveling polyurethane concrete joint sealer. Professionally applied to prepared joints, it creates a clean, flexible waterproof seal that helps keep water and deicing salts from reaching the soil under driveways, sidewalks, patios, pool decks, garage floors and other concrete surfaces.

Don’t Wait To Seal Your Concrete Joints
Open joints allow water and deicing salts to reach the soil beneath your concrete. If the slabs are still level, sealing now can help reduce erosion and future settlement. If PolyLevel® lifting is needed, NexusPro® seals the restored joints afterward to help protect the repair.
Common Applications
- Driveway expansion joints
- Sidewalk joints and cracks
- Patio joints
- Pool deck edge joints
- Garage floor joints and cracks
- Front steps and stoop joints

What To Expect
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