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Major vs. Minor Signs of Foundation Movement in Austin and San Antonio

  • Writer: The Foundation Guru
    The Foundation Guru
  • Jul 28
  • 4 min read

If you own a home or property in the Austin or San Antonio area, understanding the nuances of foundation movement is crucial. Both cities are known for their expansive clay soils, which can cause significant shifts in residential foundations. Identifying major and minor signs of foundation movement will help you address issues effectively before they escalate into costly repairs.


Expansive clay soil expands when wet and contracts when dry, leading to potential complications for any structure built upon it. Let's explore the distinctions between substantial and minor signs of foundation movement, revealing how to spot them early and take appropriate action.



Understanding Foundation Movement


Foundation movement can occur for various reasons, but when it comes to expansive clay soils, moisture levels play a pivotal role. The soil’s expansion and contraction create pressure beneath the foundation, which can lead to visible signs of distress.



Major Signs of Foundation Movement


There are several significant indicators of foundation movement that should not be ignored. These signs often point to severe issues and require immediate attention. Here are three major signs to watch for:


1. Large Cracks in Walls and Floors


One of the most alarming signs of foundation movement is the appearance of large cracks in walls and flooring. Vertical cracks, particularly those wider than 1/4 inch, can indicate significant settling or shifting. Observable cracks on the exterior of your home could signal that your foundation is experiencing distress. If you notice such cracks, it would be wise to schedule a foundation inspection.


Large drywall crack observed during foundation inspection.
Large drywall crack observed during foundation inspection.

2. Doors and Windows that Stick


Another alarming sign is when doors and windows start to stick or become misaligned. This often happens due to shifting foundations that disrupt the frames of these openings. Similarly, windows may become difficult to open or close, indicating that the frames may be under pressure from the shifting foundation. Addressing these issues promptly can help mitigate further damage.


Bedroom door out of frame due to foundation movement.
Bedroom door out of frame due to foundation movement.

3. Uneven Floors


Walking across the floor and noticing a slope or a dip can be another major warning sign of foundation movement. While some homes settle naturally over time, significant unevenness may indicate that the foundation is shifting due to moisture changes in the expansive clay soil beneath. To assess the severity of the issue, a foundation inspection is recommended.



Minor/Normal Signs of Foundation Movement


Not all signs of foundation movement are alarmingly severe. Some minor or normal signs may arise that can simply indicate routine settling or mild shifts. Here are a few minor signs to consider:


1. Cracks


Hairline cracks are common and often harmless. These cracks can appear due to normal settling and are usually less than 1/8 inch wide. While they should be monitored, they typically do not indicate significant structural issues. Keeping an eye on these minor signs allows homeowners to assess whether they escalate over time.


Exterior hairline crack in concrete slab foundation.
Exterior crack in concrete slab foundation.

2. Landscaping


You might notice slight settling or depressions in your landscaping around the foundation. While this can happen due to settling soil, it can also be a result of water pooling or erosion. Monitoring the drainage and soil is suggested on every foundation.


3. Nail Pops


Nail pops or small bumps in drywall are typically caused by thermal activity or by slight shifts in the framing of a house. This is generally considered a minor issue that many homeowners experience. In many instances, these pops won’t affect the home’s overall structural integrity but may contribute to the need for cosmetic repairs over time.



Knowing When to Seek Professional Help


Understanding the difference between major and minor signs of foundation movement is critical. While minor signs can often be managed with routine maintenance, major signs require a professional assessment.


If you observe large cracks, sticking doors, or uneven floors, consider contacting The Foundation Guru for an Independent and Unbiased Foundation Inspection before the damage worsens.


If you want to avoid future foundation problems but are unsure about proper maintenance, The Foundation Guru also provides guidance and consultations for preventative care.



We don't sell a product, we provide a service.


Navigating the challenges presented by expansive clay soil in the Austin and San Antonio areas requires diligence and an informed approach. By recognizing the signs of both major and minor foundation movement, you can protect your home and investment.


Monitoring conditions and acting quickly when observing significant changes will lead to better long-term outcomes. If you're in doubt, don't hesitate to reach out for a professional and independent evaluation and unbiased opinion. The Foundation Guru specializes solely in foundation inspections and does not provide foundation repair or leveling.


Keeping your foundation in check ensures a safe, secure, and stable living environment for years to come.


As a homeowner, being informed and proactive can make all the difference. By understanding these signs, you can safeguard your property against the adverse effects of foundation movement caused by expansive clay soil.


Search for “ foundation repair austin" or reach out to us directly:

The Foundation Guru

Office: 512-545-8387 (call or text)



For more information or to book an inspection, visit our website at The Foundation Guru.


Empower yourself with knowledge and ensure the longevity of your home by choosing The Foundation Guru for all your foundation inspection needs.

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The Foundation Guru

512-545-8387

Austin, Texas

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