Washout
Water running along an edge or under a joint takes the soil with it, and the panel drops.

Concrete walkway lifting and repair
We raise sunken sidewalk panels with polyurethane injection to take out the offsets that catch toes, wheels, and water.
A lip between sidewalk panels is a trip hazard and, on a commercial property, a liability. We measure the offsets and how the walk meets steps, driveways, and curbs, then lift the low panels to close the gap. If the walk is in the public right-of-way or an HOA is involved, we’ll help you sort out who has to sign off.
Water running along an edge or under a joint takes the soil with it, and the panel drops.
Roots push panels up; a root that was cut out rots and leaves a hollow. We can lift the low neighbor, but a root-raised panel usually needs a different fix.
Walkways are often poured over loose fill that keeps settling after the concrete is in.
New landscaping, irrigation, and nearby construction send water and soil movement toward the sidewalk.
Lifting takes out the offset at a joint. It does not, by itself, make a route ADA-compliant; slopes and clearances along the whole route are a separate review.
Foam does not remove roots or fix a broken line under the walk. If those are the problem, we will say so and may bring in another trade.
Who owns the walk and whether a permit is needed varies by city and HOA. We will help you find out before anyone drills.
Schedule a site visit or send plans so we can assess the concrete and what it connects to. After the visit or plan review, we’ll explain whether lifting, replacement, or another fix makes sense and provide a free written estimate.