Seal Foundation Cracks From The Inside
Foundation cracks are a common problem in Michigan homes, often caused by settling, shrinkage, or hydrostatic pressure. While some cracks are cosmetic, others allow water to seep into your basement. Our crack injection service uses high-quality polyurethane or epoxy resins to permanently seal cracks from the inside out, stopping water infiltration without the need for costly exterior excavation.
Our Crack Injection Work
Before and after examples of our professional repairs








Our Crack Injection Services Include
Polyurethane Injection
Flexible polyurethane resin that expands to fill cracks completely, remaining flexible to accommodate minor foundation movement.
Epoxy Injection
Rigid epoxy repair that bonds concrete back together, restoring structural integrity for cracks that need reinforcement.
Crack Assessment
Professional evaluation to determine crack type, cause, and severity to select the most effective repair approach.
Active Leak Repair
Stop water infiltration through actively leaking cracks, even during wet conditions, with specialized injection techniques.
Floor-Wall Joint Repair
Address water seepage at the joint where basement floor meets the wall – a common source of basement water problems.
Warranty Protection
Our crack injection repairs come with warranty coverage for your peace of mind and long-term protection.
Tie Rod Hole Repair
Every poured foundation has rod holes from the forming process. These are common water entry points that we seal permanently with specialized techniques.
Snap Tie Sealing
Seal snap tie holes and form tie penetrations that are allowing water to seep into your basement. A quick, affordable fix for common foundation leaks.
Our Crack Injection Process
Crack Inspection
We thoroughly examine the crack to determine its depth, cause, and whether it’s actively leaking or has structural concerns.
Surface Preparation
The crack is cleaned and prepared. Injection ports are installed at intervals along the crack length to ensure complete filling.
Injection
Starting at the bottom, we inject polyurethane or epoxy resin under pressure, forcing material deep into the crack until it emerges at the next port.
Curing
The injected material cures and expands (polyurethane) or hardens (epoxy), creating a watertight seal through the full wall thickness.
Cleanup & Verification
Injection ports are removed, the surface is cleaned and smoothed, and the repair is verified for complete sealing.
Why Choose Mansour’s for Crack Injection?
No Excavation
Repair cracks from inside your basement without digging, landscaping disruption, or extensive costs.
Fast Repair
Most crack injections are completed in a few hours with minimal disruption to your daily routine.
Permanent Solution
When done correctly, crack injection provides a lasting repair that prevents water infiltration.
Cost-Effective
Crack injection costs significantly less than exterior excavation and waterproofing for isolated cracks.
