How Can Tempe Homeowners Tell the Difference Between Structural and Non-Structural Cracks?

Cracks in concrete can be more than cosmetic—they’re often your home’s way of signaling what’s happening beneath the surface. As a foundation repair specialist at Concrete Repairman LLC, I’ve seen firsthand how many homeowners dismiss early warning signs until they become costly foundation issues. Understanding whether a crack is structural or non-structural can make all the difference in protecting your property and your peace of mind.

What Exactly Are Non-Structural Cracks in Concrete?

Non-structural cracks are typically the result of natural curing, temperature fluctuations, or minor settling that occurs as a house ages. These cracks often appear as thin, vertical hairlines on walls, slabs, or driveways. While they may not immediately compromise your foundation’s strength, they can still let in moisture and air—leading to corrosion, mold, or interior wall damage if ignored. At Concrete Repairman LLC, we use specialized foundation inspection tools to determine the depth, direction, and cause of these cracks. If they’re simply surface-level, we can seal and waterproof them to prevent further deterioration. However, if rebar oxidation or expanding moisture is detected, that small crack could soon become a more serious issue requiring structural repair.

How Can You Identify Structural Cracks?

Structural cracks indicate real movement or stress in your foundation. These cracks often form diagonally or horizontally and may widen over time. Common causes include settlement issues, soil expansion, water intrusion, or rebar corrosion (oxidation). You can usually recognize a structural crack by its pattern and behavior:

• It may be wider than 1/8 inch.
• It may run through both the interior and exterior foundation walls.
• It often accompanies other warning signs, such as doors sticking, uneven floors, or cracks in ceiling corners.

When I perform a foundation inspection, I look for these clues and use advanced diagnostic methods to confirm whether we’re dealing with a stem wall failure, slab heave, or rebar oxidation. If left untreated, structural cracks can jeopardize your home’s stability and resale value.

What Causes Foundation Cracks to Become Structural Over Time?

Even small non-structural cracks can evolve into structural ones if underlying issues go unaddressed. Arizona’s dry climate and expansive clay soils are common culprits. When moisture levels change, the soil beneath your foundation expands or contracts, placing stress on the concrete. Additionally, rebar oxidation—a process where moisture causes steel reinforcement bars to corrode—can push against the concrete, leading to spalling, crumbling, and eventually stem wall damage. At Concrete Repairman LLC, we specialize in stem wall repair, rebar replacement, and waterproofing solutions to stop this chain reaction before it worsens.

When Should You Call a Foundation Repair Expert?

If you’re not sure whether a crack is structural or cosmetic, it’s always best to schedule a professional inspection. Our foundation inspections in Tempe, AZ, are designed to pinpoint problems early and prevent future damage. We don’t just look at the cracks—we analyze the cause, surrounding soil conditions, and any visible stress on your slab or stem wall. We provide a detailed on-site assessment and can often give you a digital estimate the same day. This ensures you get a transparent, data-driven diagnosis before making any repair decisions. Remember: delaying repairs can allow cracks to spread and increase repair costs.

What Are the Best Solutions for Structural Cracks?

At Concrete Repairman LLC, we tailor every foundation repair plan based on your home’s specific needs. For structural cracks, we may recommend:

• Structural hydraulic grout patches to stabilize the foundation.
• Rebar oxidation treatment to stop corrosion and reinforce the concrete.
• Stem wall waterproofing to prevent moisture intrusion.
• Tension tie or J-bolt replacement for long-term reinforcement.

Each repair is performed by highly skilled craftsmen personally trained by James Belville, a third-generation concrete expert known for his precision and craftsmanship. Our repairs are engineered for longevity and backed by experience, not guesswork.

Can You Prevent Foundation Cracks in the Future?

Absolutely. Prevention begins with proper drainage, soil moisture control, and regular inspections. Make sure rainwater flows away from your home’s base and that your landscape grading doesn’t trap water near the stem wall. Scheduling an inspection every five years is also a smart way to stay ahead of potential foundation problems—especially in regions like Tempe, where soil shifts can be unpredictable. We do not only repair foundations—we educate homeowners on how to maintain them. Knowing how to read the early warning signs of structural cracks can save you thousands in repairs later.

Get Help Identifying Cracks at Home – Call Us Today

Don’t wait until a simple hairline crack becomes a costly foundation repair. At Concrete Repairman LLC, we’re here to inspect, diagnose, and fix the root cause of your problem using proven repair systems and high-quality materials. Call us today at (480) 725-7614 for a professional foundation inspection and personalized repair plan designed to protect your home for years to come.