How Do You Repair Large Cracks in Concrete?

There’s no one-size-fits-all solution for “how to fix concrete” since various causes of damage exist. However, when implemented correctly, concrete lifting techniques return many uneven and cracked concrete slabs to a level position.

In a previous article, we addressed the question, “Why Does My Home Have Cracked Concrete?” This page focuses on how to fix large concrete cracks effectively for long-term results. There’s a simple answer, so let’s get started.

Concrete cracks wider than 0.3 mm—such as those in the upper corner of a foundation wall, long diagonal cracks, or those wider at one end—may signal foundation issues. These cracks can allow moisture seepage, leading to bowing walls and other significant damage.

It can be challenging to recognize when cracks are cause for concern. Contact a concrete or foundation repair expert for an inspection to determine the right course of action for your home. Early detection and repair can prevent more significant damage and costly future repairs.

• Identify the concrete areas of concern.
• Drill small holes into these problematic areas.
• Insert injection ports into the holes.
• Mix the two-part, closed-cell polyurethane foam.
• Inject the high-density foam beneath the concrete.
• The foam expands, fills voids and gaps, and lifts the slab.
• Allow the foam to cure for a quick 15 minutes.
• Remove injection ports and fill the holes for a seamless finish.
• Seal cracks and joints for long-term durability and moisture protection. 
• Perform regular maintenance to ensure optimal performance and safety.

Concrete has existed for thousands of years, and many of those structures still stand. However, concrete patios, driveways, and sidewalks eventually show signs of aging and require repair. If you need professional advice, Foundation Support Specialists can help.

Schedule a free concrete inspection today. Click the button below to get started.