Sunken concrete lifted across Rockford and Winnebago County
Benchmark Concrete Leveling

Cherry Valley, Winnebago County

Foam Injection (Polyjacking) in Cherry Valley, IL

Cherry Valley sits on the southeast edge of the metro where the newer residential building has been concentrated, so the concrete skews younger here than almost anywhere else nearby. Young concrete still settles, and when it does it is nearly always a backfill problem rather than an age problem.

Foam injection, also called polyjacking, lifts a settled slab by injecting an expanding two-part polyurethane through penny-sized holes. It cures in minutes, adds almost no weight to the soil, and resists the washout that can undo a mudjacked slab.

Local concrete

What Cherry Valley Concrete Is Like

Newer construction, which sounds like it should mean fewer problems and often means the opposite in the first decade. Ground that was disturbed during the build has to finish compacting, and a slab poured over it comes down with it.

This page is about the method itself: foam is usually the better call wherever water is the actual cause, which on the evidence of this site's own town pages is most of the time.

Cause

Why It Drops

  • The two-part polyurethane expands as it reacts, filling the void and lifting the slab without the added weight a slurry carries.
  • It cures chemically within minutes, which is why a foam-lifted driveway can be driven on the same morning rather than waiting out the day.
  • The holes are roughly the size of a penny, smaller than mudjacking needs, because the foam does not require the same bore to flow.
  • It does not wash out, so where the original void was caused by moving water, foam stays where it was injected instead of eroding the same way the soil did.

All of it sits on the same underlying fact: Rockford requires frost footings at 42 inches because the ground here freezes that deep, and a foam injection (polyjacking) slab is poured well above that line. See why concrete sinks in Rockford.

Areas we cover

Around Cherry Valley

We take work anywhere in Cherry Valley, including:

  • The Baxter Road corridor
  • Cherry Vale area
  • The old village center on East State
  • Mill Road

Straight answer

When Not to Lift It

Foam is not worth the extra cost on a large, stable slab that settled once years ago and has not moved since, where mudjacking's lower price and comparable 5-to-10-year life cover the job just as well. Paying foam prices everywhere is not the honest answer any more than mudjacking everywhere is.

Foam Injection (Polyjacking) in Cherry Valley?

Send a photo and roughly how far it has dropped. You get a fixed quote back, not a callback to arrange a callback.