Cracks in your floor can lead to serious problems like water damage and foundation issues. We at Minneapolis Flooring Company fix these issues fast with our expert floor crack repair and sealing service. Our professional team uses award-winning techniques and industry-tested methods to seal floor cracks, starting at $220 for basic repairs.
We serve homes across the Twin Cities area with over 30 years of experience in floor repair. From basement floor cracks to hardwood floor damage, our skilled technicians handle every type of repair job with precision and care.
You can trust us to stop water leaks, prevent flooding, and protect your home's foundation. We use high-quality materials and proven repair systems that come with a warranty for your peace of mind.
Understanding Floor Cracks
Floor cracks can range from minor cosmetic issues to serious structural problems. We inspect and repair all types of floor damage to protect your home's value and safety.
Types of Floor Cracks
Hairline cracks measure less than 1/8 inch wide and often appear in concrete floors. These thin cracks rarely cause structural issues but should be sealed to prevent water damage.
Structural cracks span wider than 1/4 inch and may show signs of movement. These cracks need immediate professional attention to prevent further damage.
Spider web cracks form interconnected patterns across floor surfaces. We commonly see these in concrete and tile installations due to settlement or impact damage.

Tile cracks typically occur along grout lines or through the tile itself. Cracked tiles can be replaced individually while preserving the surrounding flooring.
Causes of Floor Cracks
Settlement creates cracks when the ground beneath your floor shifts or compresses. This natural process affects both new and old buildings.
Temperature changes make floors expand and contract. This movement puts stress on materials and leads to cracking, especially in concrete and tile.
Heavy loads and impacts damage floors beyond their weight capacity. Watch for cracks near appliances or in high-traffic areas.
Poor installation practices cause premature cracking. Improper concrete curing, insufficient subflooring, or incorrect tile spacing create weak points in your floors.

Moisture problems lead to cracks by weakening floor materials. We find many basement floor cracks start from water damage or high humidity levels.
Our Concrete Crack Repair Methods
Professional concrete crack repair requires specific techniques and materials to ensure long-lasting results. Each method serves a distinct purpose based on crack size, location, and severity.
Epoxy repair provides exceptional strength and durability for concrete cracks. We inject a two-part epoxy solution deep into the crack to create a permanent bond.
This method works best for cracks wider than 1/8 inch in foundations and floors. The epoxy fills the entire depth of the crack, preventing water infiltration. Benefits of Epoxy Repair:
Polyurethane foam is ideal for active leaks and cracks exposed to moisture. The foam expands to fill gaps and voids completely. We use this method for:
The foam's flexibility allows it to move with the concrete, reducing the chance of new cracks forming.
This fast-setting repair method stops active water leaks quickly. The cement expands as it cures, creating a watertight seal. Perfect for:
The patch typically sets within 3-5 minutes, making it effective for immediate repairs.
Mortar repairs work well for surface-level cracks and cosmetic fixes. We mix special repair mortar to match your existing concrete color and texture. Application Steps:
The repair blends seamlessly with surrounding concrete, restoring both function and appearance.
Specialized Crack Repair Techniques
We use advanced repair methods to fix floor cracks permanently and prevent future damage. Each technique targets specific types of cracks and damage patterns for the best results.
Crack Injection
We inject high-strength epoxy or polyurethane materials deep into floor cracks using professional-grade equipment. This creates a powerful bond that stabilizes the damaged area.

The injection process fills the entire depth of the crack, not just the surface. This stops water seepage and prevents the crack from growing larger.
Our specialized injection equipment maintains precise pressure control for optimal material distribution. The cured material is stronger than the original concrete, creating a lasting repair.
Crack Stitching
We install metal stitching staples across cracks to restore structural integrity. These staples are embedded perpendicular to the crack at regular intervals.

The metal stitches transfer stress away from the cracked area. This prevents the crack from widening or spreading further.
We combine stitching with surface patching for complete crack control. The dual approach provides both structural reinforcement and cosmetic improvement.
Concrete Patching
We apply professional-grade patching compounds matched to your existing floor color and texture. The patching material bonds permanently to the concrete surface.
Our patch preparation includes cleaning, profiling, and priming the repair area. This ensures maximum adhesion and durability.
The finished patch is level with surrounding concrete and resists wear. We carefully blend the edges to create a seamless appearance.
Preventive Measures and Maintenance
Regular care and protection of your floors prevents damage and extends their lifespan. A proactive approach saves money and keeps floors looking great.
Moisture Control
We recommend installing moisture vapor barriers during floor installation to block dampness from the subfloor. These barriers protect against warping, mold, and structural damage.

A self-leveling compound helps create an even surface and adds an extra moisture barrier. We apply this compound before installing new flooring to prevent uneven wear.
Watch for signs of moisture like dark spots or musty odors. Clean spills right away and use dehumidifiers in damp areas.
Regular Inspection and Maintenance
We suggest checking your floors every 3-4 months for cracks, gaps, or wear patterns. Early detection helps prevent small issues from becoming major problems.
Clean floors weekly with appropriate products for your floor type. Avoid harsh chemicals that can damage protective seals.
Place mats at entrances to catch dirt and moisture. Use furniture pads to prevent scratches and dents.
Professional deep cleaning twice per year removes embedded dirt and refreshes protective seals. We can assess your floors' condition during these visits.