Rockford, Winnebago County
Foam Injection (Polyjacking) in Rockford, IL
Rockford has the oldest and the widest range of concrete in the county, from pre-war sidewalks poured straight onto grade to post-war subdivisions where the driveway and the garage floor went in the same week as the house. Both ends of that range settle, for different reasons, and they do not get fixed the same way.
Local concrete
What Rockford Concrete Is Like
A lot of the west side and the older near-north streets have public walk and private drive meeting at a joint that has moved, which is the single most common trip hazard we get called about. The post-war subdivisions out toward Alpine and Spring Creek tend to have wider driveway slabs that sink as one piece rather than tilting at a joint.
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 Rockford
We take work anywhere in Rockford, including:
- North Town Heights
- Mulford Ridge and Mulford Crest
- Spring Creek Hills
- Spring Lake Estates
- Western Hills
- Auburn Manor
- Beverly Park
- Andrews Park
- Boylan Terrace
- Briar Crest
- Colonial Gardens
- Emerson Estates
- LeaLand Place
- North Ridge
- Samuelson Corners
- Skandia Hills
- The Arbors
- Alpine Crest
- Edgebrook
- Woodcroft
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 Rockford?
Send a photo and roughly how far it has dropped. You get a fixed quote back, not a callback to arrange a callback.
Other slabs in Rockford