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Top 10 Most Common Foundation Problems (and What’s Causing Them)

cracks in basement wall

Do you know in your bones that something is wrong with your home, but you can’t quite put your finger on it? More than likely, the issue is a house foundation problem, such as wall cracks or sloping floors.

These symptoms may be common, but they are not normal nuisances that you have to tolerate. It may be tempting to sweep them under the rug, but foundation issues in home areas only worsen and become more expensive to repair over time. Tackling them at the source is the key to creating a safe and stable living environment.

Learn the causes of foundation problems, what to look for, and how to repair and protect your home.

Table of Contents

What Are Foundation Problems (and Why Do They Matter)?

The foundation bears the responsibility of supporting the entire structure of your home, including all its contents and occupants, which is no small feat. Over time, this constant load can lead to gradual deterioration.

House foundation problems encompass a range of structural issues that affect the base support system of your home. These issues, including cracks and unevenness, happen when the foundation shifts, weakens, or becomes compromised by forces, like soil and weather conditions.

Foundation issues matter significantly because they directly impact your home’s structural integrity, safety, and value. What starts as a small crack can escalate into major structural damage, costly repairs, and potential safety hazards if left unaddressed. Beyond the immediate structural concerns, foundation problems can lead to secondary issues, like moisture intrusion and mold growth, affecting your daily comfort and the long-term habitability of your home.

Top 10 Most Common Foundation Problems

Let’s get right to it. Be sure to check for the following foundation issues in your home:

Problem What it Looks Like What to Look For
Cracks in Basement or Foundation Walls
Interior bowing cinderblock wall.
Look for horizontal, vertical, or stair-step cracks in concrete or block walls, which develop when hydrostatic pressure from saturated soil pushes against the foundation or when the structure settles unevenly.
Drywall Cracks and Drywall Nail Pops
crack in drywall near door frame
Watch for hairline cracks along drywall and wall seams or nail heads protruding from the wall surface, as these indicate that foundation movement is causing the house frame to shift and stress interior finishes.
Slab Floor Cracks
Interior cracked concrete slab.
Notice jagged or straight cracks running across concrete floors, which form when the soil beneath the slab settles, expands, or contracts due to moisture changes or inadequate ground preparation.
Uneven or Sloping Floors
Uneven floor
Feel for floors that dip, rise, or feel bouncy underfoot, signaling that foundation settlement or damaged floor joists are causing structural support failure.
Gaps Between Walls and Floors or Ceilings
gap between wall and floor
Observe visible spaces where walls pull away from floors or ceilings, revealing that differential foundation settlement is causing the house frame to separate at connection points.
Bowing Basement Walls
Cinderblock bowing wall with gap.
See walls that curve inward or show horizontal cracks, indicating that excessive soil pressure or hydrostatic pressure is overwhelming the wall’s structural capacity.
Sticking Windows and Doors
woman opening a window
Test door and window operation; if they jam, won’t latch properly, or show gaps around frames, foundation movement has distorted the openings out of square.
Chimney Cracking or Leaning
Chimney separating from the brick exterior foundation wall.
Notice a chimney tilting away from the house or cracks where it meets the roofline, showing that the chimney’s separate foundation is settling at a different rate than the main structure.
Cracked Bricks
Stair-step crack in brick under window
Spot zigzag or stair-step cracks in brick walls or mortar joints, indicating that foundation movement is creating stress fractures in the rigid masonry materials.
Foundation Water Damage
water on basement floor and mold on walls
Find white mineral deposits (efflorescence), damp spots, musty odors, mold, or actual water on basement walls and floors, showing that water is penetrating the foundation and potentially weakening its structural integrity.

These foundation issues in your home can be complex and, oftentimes, difficult to detect. If you’re unsure what your home is trying to tell you, talk to local foundation repair professionals for advice, a complete evaluation of your home, and peace of mind.

What Causes Foundation Issues?

Now that you know what to look for, you might wonder why they happened in the first place. The top causes of foundation problems include:

water collecting around a house
  • Soil Composition and Movement: Different soil types, including clay-based soil, expand and contract at varying rates in response to moisture changes, creating uneven pressure that can crack or shift foundations.
  • Precipitation and Weather: Heavy rains, droughts, and freeze-thaw cycles cause soil to swell, shrink, and shift around the foundation, leading to structural stress.
  • Poor Drainage: Inadequate water management allows moisture to accumulate around the foundation, creating hydrostatic pressure and soil instability.
tree roots
  • Tree Roots: Large tree roots can grow under foundations and extract moisture from surrounding soil, causing settlement and structural damage.
  • Overloading: Adding excessive weight to a structure through renovations or heavy equipment use can exceed the foundation’s original load-bearing capacity.
  • Improper or Aging Materials: Substandard construction materials or deteriorating components lose their structural integrity over time, making foundations more vulnerable to damage.

Understanding what causes foundation issues helps you identify potential risks early and take preventive measures before minor problems become major structural damage.

How to Spot Early Problem Signs

As we described in our problem sign list, the best thing you can do is rely on your senses. Look around your home and use these simple tools:

  • Walk inside and outside your home, looking for visual symptoms
  • Feel the walls and floors for cracks and gaps
  • Pay attention to how floors feel when you walk over them
  • Check surfaces with a level and measure cracks with a tape measure
  • Listen for noises, such as creaking floorboards
  • Note any musty smells you detect

Your account of what’s going on in your home is critical and sets the stage for a successful and thorough Groundworks inspection.

What to Expect During a Professional Foundation Inspection

Your home and your time are important to us, and we want to make the process as easy as possible for you.

After you schedule a free inspection for a day and time that works best for you, you’ll receive an email confirmation, and your inspector will also call in advance.

Groundworks inspector talking to homeowners

The inspector will introduce themselves when they arrive, discuss our company, and learn more about you and your house foundation problem and findings.

Now it’s time for the comprehensive assessment. Your inspector will thoroughly inspect your home, both inside and out, for structural issues, moisture presence, and other potential damage to identify the causes of foundation problems on your property.

After completing the assessment, the inspector will explain their findings and provide a tailored solution strategy. You maintain complete control over which services you choose. With immediate estimates available, you’ll have clear insight into repair expenses and payment options from day one.

Once you approve the recommended approach, we’ll quickly coordinate the project timeline and set up work dates that fit your availability. Our crew handles all necessary permit applications and performs a complete review of the planned repairs.

Solutions to Foundation Issues in Your Home

Some of the repair systems we may recommend to correct your house foundation problem include:

crew member installing basement wall braces
  • Foundation Piers: Pier systems (helical, push, or slab) are installed deep into the ground, relying on stable soil to reinforce and help lift settling foundations.
  • Crawl Space Jacks: Robust adjustable crawl space support posts provide permanent reinforcement for sagging floor joists beneath your home, with the potential to lift and level uneven floors over time.
  • Wall Repairs: Structural wall solutions, such as carbon fiber reinforcement, wall braces, and wall anchor systems, provide lasting stabilization and halt continued inward bowing.
  • Water Mitigation: Moisture control via basement waterproofing or crawl space encapsulation is essential for preventing moisture infiltration that leads to wood decay and structural deterioration.

Our systems are tailored to meet your home’s repair needs and your budget. We only suggest essential methods to repair and protect your home, nothing more.

Choose Groundworks When You Have Foundation Issues

Foundation issues in your home may seem daunting, but overlooking warning signs isn’t an option. Taking swift action on structural problems is essential for safeguarding your property and loved ones.

You don’t have to navigate a house foundation problem alone or feel stressed about the process. The skilled professionals at Groundworks are ready to guide you through every phase of the solution. We understand the unique challenges that property owners encounter and have proven repair techniques to resolve them.

Contact us today to schedule a free inspection and discover how to preserve your home’s stability and your family’s safety for many years.

Foundation Problems FAQs

Not all foundation problems are an immediate concern. Usually, they don’t pose an immediate risk, but they can become problematic over time. As foundation issues worsen, the associated risks increase. If you’ve been dealing with foundation problems for a while, your home might be unsafe. Contact a professional for expert advice.

Ignoring foundation problems can have severe consequences for your home and your wallet. Foundation issues typically worsen over time, leading to increased repair costs and potentially causing additional costly secondary repairs. Plus, ignoring foundation problems can lower your home’s resale value and make it more challenging to sell.

Regular maintenance, proper drainage, and monitoring for early signs of trouble can help prevent many common foundation issues.

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Holly Richards-Purpura

Holly Richards-Purpura

Content Writer

Holly is a Content Writer for Groundworks who has written and edited web content for the foundation services industry for over 10 years. With a background in journalism, her passion for the written word runs deep. Holly lives in Columbus, OH, with her husband. Along with educating homeowners, she also has a big heart for the Big Apple.