Expert Crack
Repair in St. Louis
Foundation and basement cracks can lead to water damage, structural issues, and costly repairs. Our proven crack repair methods stop leaks and restore structural integrity — permanently.
Types of Foundation Cracks
Not all cracks are the same. Understanding what type of crack you have helps determine the best repair method and urgency level.
- Vertical Cracks
Common in poured concrete walls, often caused by settling. Usually less serious but can allow water intrusion.
- Horizontal Cracks
Indicate significant lateral pressure from soil. These are the most serious and require immediate attention.
- Diagonal Cracks
Caused by differential settling — one side of the foundation settles more than the other.
- Stair-Step Cracks
Found in block or brick foundations, following the mortar joints. Indicates settlement or lateral pressure.
- Shrinkage Cracks
Hairline cracks that form as concrete cures. Usually cosmetic but can allow moisture penetration over time.
- Floor Cracks
Cracks in basement floor slabs can indicate hydrostatic pressure or foundation movement below grade.
Our Crack Repair Solutions
Epoxy Crack Injection
A structural repair method that bonds cracked concrete back together with a strength that exceeds the original concrete. Ideal for poured foundation walls.
- Restores structural integrity
- Permanent waterproof seal
- Stronger than original concrete
Polyurethane Foam Injection
Flexible foam that expands to fill the entire crack from front to back. Perfect for actively leaking cracks and cracks that may continue to move slightly.
- Stops active water leaks
- Flexible — accommodates minor movement
- Quick cure time
Carbon Fiber Reinforcement
High-strength carbon fiber strips bonded over cracks to prevent further spreading and add structural reinforcement to compromised walls.
- 10x stronger than steel
- Prevents crack from widening
- Low-profile, paintable finish
Exterior Crack Repair
Excavation-based repair addressing cracks from the outside with waterproof membranes and drainage solutions for a comprehensive fix.
- Addresses root cause
- Full waterproof membrane applied
- Includes drainage improvements
Signs You Need Crack Repair
Don’t ignore these warning signs. Early repair prevents small cracks from becoming major structural problems.
- Visible cracks in basement walls or floor
- Water seeping through wall cracks
- White mineral deposits (efflorescence) near cracks
- Cracks that are growing wider over time
- Musty odors or mold near crack areas
- Damp or wet spots on basement walls
- Cracks wider than 1/4 inch
- Horizontal cracks in block walls
- Cracks near windows or door frames
Our Repair Process
Step 1
Free Inspection
We examine every crack and assess the severity and underlying cause.
Step 2
Diagnosis & Plan
We recommend the right repair method based on crack type and conditions.
Step 3
Professional Repair
Our technicians perform the repair with precision and care.
Step 4
Guaranteed Results
Every repair comes with a warranty for your lasting peace of mind.
Why Choose Crack Wizard
20+ Years Experience
Thousands of cracks repaired across the St. Louis metro area.
Free Inspections
We diagnose your crack issues at no cost or obligation to you.
Lifetime Warranties
Our crack repairs are backed by transferable lifetime warranties.
Licensed & Insured
Fast response times so you can get your repair scheduled quickly.
Local Experts
We don't patch — we fix the problem at its source, permanently.
Financing Available
Flexible payment plans to make repairs affordable for every homeowner.
Cracks Only Get Worse With Time
A small crack today can become a major structural issue tomorrow. Don’t wait — schedule your free crack inspection now and protect your home.