Void filling & slab stabilization in Eastlake & Lake County
A hollow sounding slab has not sunk yet. Fill the void now with polyurethane foam and it never will. This is the cheapest concrete fix you will ever buy, because you buy it before the damage.
The slab is fine. The dirt under it is gone.
Water is always moving under your concrete. Downspouts, sump lines, and grade washout carry soil away a little at a time. The slab bridges the empty space for a while, then it cracks or drops all at once.
You can hear it coming. A slab with a void under it sounds hollow when you tap it, and it may flex or rock underfoot. Steps and stoops pull away from the house the same way.
We pump polyurethane foam into the void until the slab is fully supported again. If the slab has already started to settle, the same injection lifts it back to level. Done before the crack, it costs a fraction of any repair after it.
Get a free quoteWhen a slab needs stabilizing
Hollow sound
Tap the slab with a broom handle. A drum sound means empty space underneath.
Slab flexes or rocks
The concrete moves under your weight. It is bridging a void.
Washout at the edges
You can see soil eroding out from under the slab edge after storms.
Downspout dumping at a slab
A downspout that discharges next to concrete is digging a void under it.
Steps pulling away
The stoop or steps are separating from the house as the fill under them washes out.
New cracks
Hairline cracks appearing across a slab often mean it has started to bridge empty space.
Level again in four steps
Free quote
We sound the slab, map the void, and price the fill before anything sinks.
Small holes
A few penny sized holes through the slab. No demolition.
Inject & lift
Polyurethane foam expands under the slab and raises it back to level.
Seal & done
We patch the holes and seal the joints so water stops carving new voids.
Water digs, the slab bridges, then it drops
Frequently asked
How do I know if there is a void under my concrete?
Why fill a void if the slab has not sunk?
Does void filling also lift the slab?
What causes voids under concrete?
Get the void checked before it sinks
If your slab sounds hollow, send us a message. We will sound it, map it, and quote the fill. Serving Eastlake, Willoughby, Mentor and all of Greater Cleveland.