Foundation cracks can be worrisome for homeowners and property managers. Cracks in ceilings and walls can trigger thoughts of costly repairs and structural damage, but that’s not always the case. Learn the difference between structural and non-structural cracks in your foundation and surrounding structure before jumping to conclusions.

Non-Structural vs. Structural Cracks in Your Foundation

Foundation stress cracks are not the only type of cracks in concrete slab foundations. In some instances, you might be seeing seasonal cracks that are due to moisture and normal settling.

We are not structural engineers, but our foundation repair company in Houston has completed over a thousand successful projects to date. We understand the different signs of structural and non-structural cracks in concrete.

Non-Structural Cracks

Non-structural cracks in concrete aren’t a threat to the structural integrity of your structure, though they may appear in your foundation. Causes can include poorly constituted concrete at the time of mixing (too much water in cement mixture), an uneven sub-grade when your foundation was laid, or suboptimal concrete curing.

Seasonal conditions bring with them moisture fluctuations that can cause non-structural cracks in your foundation. Thin hairline cracks (typically less than 3mm wide) can also appear from normal foundation settling or tree and plant roots that cause minimal damage.

Continually monitor these cosmetic foundation cracks for any growth. In many cases, you can fill these with a foundation crack repair kit to improve their aesthetic.

Structural Cracks

Structural cracks can occur due to foundation soil that is too wet or dry, poor soil bearing, and expansive voids under your concrete slab. This type of soil fluctuation is common in regions where clay is the predominant soil.

The landscaping around your house foundation can cause structural cracks if your grading encourages water retention under your structure. Certain landscaping features like concrete patios can cause one side of your foundation to remain dry while the other side retains moisture, leading to uneven soil movement and structural cracks.

structural and non-structural cracks in foundation

Structural foundation cracks are generally larger than 3mm and come in different shapes and sizes. One end of the crack may be wider than the other. The concrete on either side of the crack may be flush, or it could be uneven. A common structural crack pattern is a stair-step crack in brick or cinder block walls.

One of the easiest ‘tells’ for structural damage cracks is that they grow over time. A thin, non-structural crack can quickly become a structural foundation crack if it gets wider after several weeks or months.

Solutions for Structural Cracks in Foundation

After considering whether you’ve got structural vs. non-structural cracks, you’ve noticed that your foundation crack is growing over time and moisture is coming through. You’ve concluded that you should contact a professional – what foundation repair methods will they propose?

If you need further help evaluating structural and non-structural cracks, use URETEK Gulf Coast’s DIY foundation inspection checklist or contact us for a free estimate today!

Pressed Concrete Piling

Pressed pilings foundation repair is one of the most common solutions for remediation. With this technique, concrete piles are driven into the ground far enough to reach a deeper and more consistent soil base using your home’s weight as a counter-force. Once the piles reach total resistance, your foundation can rest with limited shifting over the long term.

Foundation Foam Injection

Foam foundation repair uses The URETEK Method® to lift and stabilize interior foundations. Our long-lasting, structural-grade, hydro-insensitive and environmentally inert foam is injected, and it expands to stabilize your soil base until proper lifting and leveling are achieved.

Contact URETEK Gulf Coast for High-Quality Foundation Repairs

When you need a professional foundation repair in the Greater Houston area, trust URETEK Gulf Coast. We’ve successfully completed over 1,000 projects over the course of almost 20 years in business. We provide lasting solutions and a competitive foundation repair warranty that will put your mind at ease.

Contact us today for a free estimate!