Understanding how the concrete raising process works helps Illinois homeowners choose a reliable contractor and avoid costly mistakes. Polyurethane concrete lifting is a fast, clean method that restores sunken slabs without full replacement. The right company will follow a clear, step-by-step process and back their work with strong warranties.
Step 1: Inspection And Evaluation
A professional technician visits your property to inspect sinking slabs, cracks, and drainage issues. They identify what caused the settlement, check slab thickness, and assess soil stability. You should receive a written estimate explaining recommended repairs and expected results.
Step 2: Drilling Small Access Holes
Once approved, the crew drills small, strategically placed holes in the affected slab. These holes are typically about the size of a dime and are positioned to reach voids without weakening the concrete. A careful layout prevents unnecessary drilling and reduces the risk of new cracking.
Step 3: Injecting Polyurethane Foam
A two-part polyurethane material is injected through the holes beneath the slab. As the components mix, they expand into a high-density foam that fills voids and compacts loose soil. The expanding foam gently lifts the slab back toward its original elevation.
Step 4: Monitoring The Lift
Technicians monitor the slab as it rises, using straightedges or laser levels to track progress. Small, controlled injections help avoid over-lifting or tilting the slab. The goal is a smooth, even transition between panels with proper slope for drainage.
Step 5: Patching Holes And Cleanup
After the slab is level and stable, the crew patches the injection holes with a compatible material. Once cured, these patches blend in with the surrounding surface. The work area is cleaned so the driveway, sidewalk, or patio is ready for use the same day in most cases.
Step 6: Curing, Final Checks, And Warranty
Polyurethane foam cures quickly, often within minutes, allowing foot and vehicle traffic shortly after the crew leaves. A reputable company will review the results with you and explain any maintenance tips. Long-term warranties should cover future settlement in the treated areas.
What To Look For In A Reliable Concrete Raising Service
Choosing the right contractor is just as important as the process itself. Homeowners should confirm specialization in polyurethane concrete raising rather than only mudjacking or full replacement, experienced technicians performing inspections and lifts, a clear written estimate and scope of work before the job starts, proof of insurance and proper licensing in Illinois, strong online reviews and local references for similar projects, and a meaningful warranty on materials and workmanship.
Frequently Asked Questions
How can I find a reliable concrete raising service?
Look for a contractor that specializes in polyurethane lifting, has strong local reviews, provides written estimates, and offers a clear warranty. Ask for photos or references from past jobs similar to yours.
What makes polyurethane better than mudjacking?
Polyurethane is lightweight, waterproof, and cures instantly, while mudjacking uses heavy slurries that can erode over time.
How much does concrete raising typically cost?
$5-15 per square foot, depending on slab size and soil conditions; always cheaper than full replacement.
Can you raise concrete in winter weather?
Yes, polyurethane works in cold temperatures and cures quickly regardless of weather conditions.
How long does the repair last?
10-20+ years with proper installation and soil stabilization, backed by strong warranties.
Will I be able to use my driveway right away?
Most areas are walkable and drivable within 15-60 minutes after foam injection.
Do I need permits for concrete raising?
Usually, minimal or none are required since no demolition occurs; reputable companies handle any necessary approvals.
Proudly Serving Northern Illinois and Beyond
Acme Concrete Raising & Repair is trusted throughout Kane County, Lake County, and the greater Chicago area. Along with St. Charles, we also service:
📞 Call 815-264-2200 today for a free concrete raising estimate in Illinois.