Void Filling & Joint Caulking in St. Joseph, MO
Sometimes the slab hasn't sunk — yet. If water has carved a void underneath, filling it before the concrete drops saves the slab and the bigger repair bill.
Get My Free Leveling EstimateSigns you need this
- Hollow sound when you walk on part of a slab
- Washout visible at slab edges after storms
- Open or failed caulk joints between panels
- Erosion channels along downspouts and slab edges
How the lift works
- Free on-site estimate — we measure settlement and probe the void
- Small ports drilled through the slab (patched at the end)
- Slurry pumped until the void is full and the slab floats level
- Joints caulked so water stays out — most jobs usable the same day
Void Filling & Joint Caulking in St. Joseph
In St. Joseph, the usual culprit is St. Joseph's deep Missouri River loess, which washes out from under slabs the moment water finds a joint. That's why void filling calls here are so common — and why the fix has to include filling the void completely, not just jacking the slab. We lift, fill, and seal so the same water problem doesn't undo the work.
Questions about void filling
How do you know there's a void?
Hollow sounds underfoot, washout at the edges, and settlement next door are the tells — and we confirm with test drilling before quoting.
What caulk do you use?
Self-leveling polyurethane joint sealant made for exterior concrete — flexible through freeze-thaw and waterproof.
Get My Free Leveling Estimate
Tell us about the job — we'll get back to you fast with straight answers and an up-front price.