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Cracks in Basement Floor 

If your basement floor resembles the effects of seismic activity, it’s a clear sign of trouble. Neglecting basement floor cracks compromises structural integrity and invites water infiltration. 

BQ Basements & Concrete holds time-honored expertise and innovative tools to effectively manage these cracks. We’ve been repairing and protecting homes throughout Greater Philadelphia, New Jersey, and Delaware for more than 25 years. Homeowners know they can count on our quality basement repair, foundation repair, and basement waterproofing solutions. 

By reading this page, you’ll understand the root causes of basement floor cracks and how to address them for good. 

Understanding Basement Floor Cracks 

Basement floor cracks are defined as gaps, fractures, or fissures in the concrete floor. These cracks often form and grow due to different pressures and forces that challenge the concrete’s strength. 

Not all cracks signify an immediate threat to your foundation. However, prompt attention is essential to prevent water intrusion and further wear and tear. 

Common Causes of Basement Floor Cracks 

Numerous factors contribute to the emergence and spread of basement floor cracks. Our experienced team can help you identify these factors during a comprehensive inspection: 

dry and cracking soil
  • Concrete Shrinkage: Freshly poured concrete can shrink as it cures. Uneven shrinkage can lead to cracks. These cracks are typically less than ¼” and may not impact structural integrity, but they can cause water leakage if they penetrate the entire depth of the slab. 
  • Soil Movement: Fluctuations in moisture beneath your home can lead to soil movement over time, causing cracks. For instance, heavy rainfall can trigger soil erosion beneath your foundation. As the soil erodes, your basement may settle, causing the concrete floor to crack as it moves with the shifting ground. 
  • Expansive Soils: Certain soil types—especially clay-based soils—expand when wet and contract when dry, as seen here. If your home is situated on clay soil, the resulting expansion and contraction cycles may cause your basement floor to crack. 
  • Hydrostatic Pressure: Water buildup beneath the basement floor can exert upward pressure, leading to cracks. These gaps may widen over time, especially if water pressure remains consistent. Simultaneously, water infiltration can aggravate the situation by further eroding the concrete. 
  • Excessive Loads: Storing heavy items in the basement can exert undue stress on the floor, potentially leading to cracks—especially if the floor wasn’t designed to bear such weight. 

Understanding the root causes of basement floor cracks is vital for selecting appropriate repair techniques. At BQ Basements & Concrete, we offer solutions tailored to address these underlying issues

Can BQ Basements & Concrete Repair Basement Floor Cracks? 

Absolutely! Thanks to ongoing advancements in basement and foundation repair methods, replacing the entire basement floor isn’t always necessary when cracks appear. 

Remember that the severity of floor cracks varies based on factors such as size, pattern, nature, and location. Our comprehensive inspection process ensures we provide customized solutions for each crack. 

Our Approach to Addressing Basement Floor Cracks 

Our proven approach has earned the trust of countless homeowners in Greater Philadelphia, New Jersey, and Delaware. Here’s how we tackle basement floor cracks: 

Thorough Inspection 

We conduct a complete assessment of each crack, documenting its dimensions, location, pattern, and width. This helps us determine whether factors like soil movement, hydrostatic pressure, or heavy loads contribute to the problem. We also examine the soil conditions around your home and assess the overall state of the foundation. 

Weight Redistribution with Foundation Pier Systems 

If your basement floor sinks or becomes uneven due to shifting soil, we strategically install foundation piers deep into stable soil. 

These piers shift the burden of the unstable floor onto themselves, successfully realigning the basement floor and guaranteeing long-term stability. 

Addressing Basement Wall Cracks 

The pressure that leads to floor cracks may also result in wall cracks. If your basement has both, addressing wall cracks is a wise step. 

BQ Basements & Concrete offers various wall repair solutions, ranging from carbon fiber straps and steel I-beam systems to channel anchors and wall anchors. Each solution is engineered to withstand heavy loads and prevent basement water infiltration and structural stress. 

Installing Interior Basement Water Management 

We install an interior drainage system and a sump pump to counteract hydrostatic pressure and redirect incoming moisture. These solutions work in tandem to intercept leaking water and divert it away from the basement. 

Our toolkit includes top-quality solutions tailored to the unique needs of your basement. Leveraging our professional experience, we ensure the lasting integrity of your basement floor. 

The Importance of Promptly Addressing Floor Cracks 

Delaying the repair of basement floor cracks can escalate minor issues into major foundation problems. Here’s what may happen: 

  • Cracks can proliferate due to ongoing pressures. 
  • Widening cracks increase the risk of water leakage, potentially leading to interior mold growth and exterior soil erosion. 
  • Neglected cracks can contribute to sinking floors and structural damage. 
  • Postponing repairs can result in higher costs, particularly if water damage occurs. 

Your home’s stability relies on the health of its foundation. Don’t brush off signs like floor cracks. With BQ Basements & Concrete, you can access timely and effective solutions beyond surface-level fixes, fortifying your basement. 

Contact BQ Basements & Concrete for Trusted Basement Floor Crack Solutions 

If you’ve noticed cracks in your basement floor, take proactive steps to prevent structural instability and water damage. BQ Basements & Concrete employs advanced techniques to repair existing cracks and strengthen your entire basement. 

Contact us to book your free inspection. Address your basement and foundation issues once and for all with comprehensive solutions from BQ Basements & Concrete. 


We don’t recommend DIY repairs for basement floor cracks, as these fixes are temporary and lead to higher costs. The cracks may signal more complex issues. Accurately diagnosing the causes and applying effective repairs requires professional knowledge and tools. 

Yes, visible problems like basement floor cracks can negatively impact the resale value of your home. Potential buyers may be less willing to invest in a property with basement and foundation issues. Addressing cracks promptly and professionally helps maintain and enhance your home’s value. 

While some factors that contribute to basement floor cracks are beyond your control, there are preventive measures you can take. Proper grading, foundation maintenance, and water drainage management help minimize the likelihood of crack development. 

BQ Service Area Map

Our Locations


1227 Liberty St., Suite 206
Allentown, PA 18102

New Jersey

535 Route 38 East, 149E
Cherry Hill, NJ 08002


106 Park Drive
Montgomeryville, PA 18936

West Chester

1503 Mcdaniel Dr., Suite 4
West Chester, PA 19380