Caulking & Crack Filling
Joint caulking, re-caulking, and concrete crack repair
Joint caulking & re-caulking
Concrete joints are designed to absorb the movement that happens as slabs expand and contract with temperature changes. When the caulk in those joints cracks, shrinks, or pulls away, water gets in — causing erosion, freeze-thaw damage, and eventual settlement. We remove old, failed caulk, clean out the joint, and apply fresh polyurethane or self-leveling sealant rated for concrete movement. The result is a watertight, flexible joint that moves with the slab instead of cracking against it.
Where we caulk
Driveways, garage floors, sidewalks, patios, pool decks, and commercial flatwork — including the joint where concrete meets a building foundation, one of the most common entry points for water intrusion.
Signs it's time to re-caulk
- Caulk is cracked, crumbling, or pulling away from the joint
- You can see gaps or voids in the joint
- Water is pooling near or running into the joint
- The joint has never been caulked — only filled with sand or backer rod
- You're sealing or coating the slab and want the joints done right first
Crack filling
Not every crack is a structural problem, but every crack is an entry point for water. Left open, even a hairline crack allows moisture to work its way under the slab, where freeze-thaw cycles widen it from the inside out. We fill cracks using rigid or semi-rigid polyurethane and epoxy injection materials selected for the crack type and location. Color-matched options are available so repairs blend with the surrounding surface. Filling cracks early is almost always less expensive than the resurfacing or replacement that follows if you wait.
Why choose Expert Concrete Care
- Full joint prep — old material completely removed before new caulk is applied
- Polyurethane and self-leveling sealants rated for concrete movement
- Crack filler matched to crack type — rigid epoxy or flexible polyurethane
- Color options available for a cleaner finished appearance
- Often paired with sealing or coating for a complete surface treatment