What Do Cracks in Your Foundation Mean? When to Worry and What to Do

Discovering cracks in your foundation can be unsettling. Whether it’s a thin line on a basement wall or a jagged fracture running along your home’s brick exterior, these signs often raise a big question: Is this something I should worry about?

At Cornerstone Foundation Repair & Waterproofing, we’re here to help you understand what these cracks mean, which ones require immediate attention, and how our team of experienced foundation repair professionals can provide lasting solutions. As a locally owned and operated company with over a decade of experience serving homeowners in the Raleigh, Durham & Chapel Hill areas, we know exactly how to handle foundation problems caused by North Carolina’s challenging soil conditions.

Understanding Foundation Wall Cracks

Foundation cracks are a common issue for homeowners and can result from a variety of causes, including soil movement, temperature changes, hydrostatic pressure, and aging concrete. While not all cracks indicate serious damage, it’s important to recognize the warning signs of potential structural problems.

Let’s break down the most common types of foundation cracks:

Horizontal Cracks vs Vertical Cracks

• Vertical Cracks: Often form as a natural result of foundation settling or concrete curing and are typically the least concerning. However, if they widen over time or are accompanied by water seepage, they should be evaluated by a foundation repair expert.
• Horizontal Cracks: These are more serious and can be a red flag for structural stress caused by hydrostatic pressure (the force of water in the soil pressing against your foundation). Horizontal cracks are often found in basement or crawl space walls and can lead to bowing or even collapse if left untreated.

Stair-Step Cracks in Brick

If you see stair-step cracks forming in your home’s brick exterior, especially around windows and corners, it may signal that the foundation is shifting or settling unevenly. These cracks typically follow the mortar lines in a diagonal or “stair-step” pattern and are a telltale sign of foundation settlement or heaving.

Stair-step cracks in brick can quickly worsen if not addressed and may lead to significant structural damage over time.

When Should You Be Concerned?

Here are a few signs that your foundation cracks may require professional repair:

• The crack is wider than 1/8 inch or is growing.
• You notice moisture, mold, or musty odors near the crack.
• Cracks are horizontal or stair-step shaped.
• Windows and doors are sticking or out of alignment.
• You see bowing or leaning walls in your basement or crawl space.

If you’re unsure, it’s always better to have an expert assess the situation. At Cornerstone Foundation Repair & Waterproofing, we offer free, no-obligation inspections to help you get clarity without pressure.

What You Can Do About Foundation Cracks

The right solution depends on the cause and severity of the cracking. Here are some of the professional services we offer:

• Epoxy or Polyurethane Injections to seal smaller cracks and prevent water intrusion.
• Wall Anchors or Carbon Fiber Straps to stabilize and reinforce bowing basement walls.
• Foundation Piering using helical or push piers to correct foundation settlement.
• Drainage Improvements and Waterproofing to relieve hydrostatic pressure and prevent future issues.

Our team will recommend a customized plan based on your home’s unique needs and budget.

Trust the Experts at Cornerstone Foundation Repair & Waterproofing

Foundation cracks might seem small, but they can signal much larger problems. With our extensive local experience, top-tier technology, and commitment to customer satisfaction, Cornerstone Foundation Repair & Waterproofing is the trusted choice for homeowners throughout Raleigh, Durham, and surrounding communities.

As a fully licensed North Carolina general contractor, we don’t just fix the symptoms—we solve the root problem.

Concerned about cracks in your foundation?

Contact us today by phone at (844) 926-7637 or through our online contact form to schedule your free inspection and let us help you protect what matters most—your home.