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Floor Crack

Are floor cracks disrupting the harmony of your beautiful North Carolina home? You’re far from alone in this. Floor cracks are a common concern for homeowners, but understanding the causes and solutions can certainly help ease anxiety. In this article we’ll explore everything you need to know about floor cracks with Tar Heel Basement Systems! 

What Are Floor Cracks? 

Floor cracks refer to fractures, splits, or breaks that appear on the surface of a floor, potentially signaling underlying issues with a home or building’s foundation. These cracks can vary in size, shape, and severity, ranging from hairline fractures that are barely noticeable to wider gaps that pose significant concern.  

Keep an eye out for signs accompanying floor cracks, together they help confirm that your foundation may be failing.  

6 Signs of Foundation Failure 

1. Cracks in the Foundation Walls 

Often, these are a red flag indicating serious foundational issues. These foundation wall cracks can appear as hairline fractures, gradually widening over time. They often reveal a deeper problem with the stability of your home, potentially stemming from soil settlement or fluctuations in soil moisture levels. Monitoring the size and width of these cracks can provide crucial information on the urgency of required repairs. 

2. Foundation Settling 

As homes age, it is natural for foundations to settle. However, excessive or uneven settling can lead to uneven floors and foster the development of cracks. This is frequently due to changes in the soil beneath the foundation, such as soil erosion or compaction, which can create voids and lead to settling. It is vital to address these issues promptly to maintain the structural integrity of your home. 

3. Gaps in the Floor 

Emerging gaps, especially those appearing between the floor and the wall or between floor tiles or planks, can be a harbinger of more serious problems. They might indicate that the house is undergoing significant foundational shifts, posing threats to its overall stability. Addressing this promptly with the help of a professional can prevent more significant damage down the line. 

4. Cracked Chimneys 

A cracked chimney isn’t just a structural concern but can also be a safety hazard. Cracked chimneys can be a manifestation of foundational problems, indicating that the ground beneath the foundation is shifting. In such cases, a comprehensive inspection of the foundation is typically required to diagnose and remedy the underlying issue. 

5. Water Infiltration 

Floor cracks can serve as an entry point for water, especially during heavy rains or floods, leading to further damage. Water seeping through these cracks can weaken the foundation over time, exacerbating existing issues and potentially leading to mold growth, wood rot, and a host of other problems. Waterproofing measures can be a lifesaver in such scenarios, protecting your home from the damaging effects of water infiltration. 

6. Mold Growth 

The intrusion of water through cracks not only affects the structural components of your home but also creates a damp environment conducive to mold growth. Mold poses a serious health hazard, potentially leading to respiratory issues and other health problems. It is also a nuisance, producing a musty odor and deteriorating indoor air quality. Addressing the source of moisture and implementing effective moisture control strategies are vital in preventing mold growth and maintaining a healthy living environment. 

What Causes Floor Cracks 

Understanding the causes behind floor cracks is the first step toward finding enduring solutions. Let’s explore potential triggers: 

Material Contraction 

Numerous materials can serve as the base for flooring, with concrete standing as a top choice due to its renowned durability. Despite its toughness, concrete has a tendency to contract while it sets, a process known as curing. Uneven contraction during this phase can result in the formation of cracks. While not always a structural concern, these fissures can become pathways for water to seep in, necessitating prompt attention to prevent potential damage. 

Overload Issues 

Excess weight on the floors can overwhelm the foundation, initiating cracks. Before placing heavy furniture items, appliances, or heavy flooring, it’s a good idea to make sure your floors are equipped to withstand the weight.  

Soil Movements 

Shifting soils beneath the home can destabilize the foundation, encouraging crack development. Soils can shift for many reasons, including erosion, earthquakes, and drought.  

Soil Characteristics 

Different soil types, such as clay rich soil, can respond variably to moisture changes, a phenomenon that can spur foundation problems after especially wet or dry periods.  

Foundation Uplift 

Occasionally, soil expansion can uplift the foundation, creating gaps and cracks in the floor. These cracks and gaps can serve as an entry point for moisture, so it’s important to resolve these issues quickly.  

Can Floor Cracks Be Effectively Repaired? 

Absolutely, with Tar Heel Basement Systems at your service, floor cracks can be efficiently addressed and repaired. We specialize in adopting strategies that target the core issues, promising long-lasting solutions. 

Tar Heel Basement Systems’ Approach to Fixing Floor Cracks 

A one-size-fits-all solution doesn’t work for floor cracks. Our approach is tailored to the specific foundational challenges your home faces. It all starts with a complimentary inspection and a detailed quote. 

Comprehensive Inspection 

Our seasoned team scrutinizes the foundation and flooring to pinpoint the root issues, factoring in the soil properties and the material of your home’s foundation. 

Load Redistribution Techniques 

To thwart future cracks, we adopt a series of load redistribution strategies, including: 

  • Push Piers: Stabilize structures by transferring the home’s weight to more stable soil layers. 
  • Helical Piers: These offer stability and prevent further settlement, especially in lighter structures. 
  • Slab Piers: Restore sunken or cracked concrete slabs to their initial position. 

Strengthening Wall Structures 

Our team leverages various techniques to reinforce your home’s walls, including: 

  • Carbon Fiber Wall Straps: Employed to bolster weakened walls, holding them together and preventing further cracking. 
  • I-Beams: Halt further movement and stabilize the structure by providing additional support to cracking or bowing walls. 
  • Wall Anchors: These work by anchoring walls to the stable soil outside, offering a permanent solution to wall issues. 

Waterproofing Measures 

Waterproofing is a pivotal step in ensuring the durability of the repairs undertaken. This involves: 

  • Basement Waterproofing: Basement waterproofing measures can include sump pump installation, French drains, gutter repairs, and insulation to stop water intrusion.  

Why to Address Floor Cracks Promptly 

Acting swiftly can prevent a small crack from morphing into a substantial problem, saving you time, effort, and resources while safeguarding your home. 

Contact Tar Heel Basement Systems for Expert Solutions 

Don’t let floor cracks dictate the aesthetics and safety of your home. Trust in Tar Heel Basement Systems for tailored solutions that address the unique needs of your home. Contact us today for a free, no-obligation consultation and quote. 


Most can be repaired, with strategies varying based on the severity and underlying cause of the crack. 

It is recommended to consult a specialist promptly upon noticing a floor crack to avert further damage. 

Cracks wider than 1/8 inch, those expanding over time, and cracks near windows or doors warrant immediate inspection. 


TarHeel Basement Systems Service Map

Our Locations

Fayetteville Location

3400 Walsh Pky, Suite 220
Fayetteville, NC 28311

Greensboro Location

611 Summit Ave, Suite 5
Greensboro, NC 27405

North Raleigh

208 Millbrook Rd. Suite C
Raleigh, NC 27609

Raleigh / Durham / Chapel Hill Location

3333 Air Park Road
Fuquay-Varina, NC 27526

Wilmington Location

2155 Enterprise Dr. NE
Leland, NC 28451

Winston-salem / High Point Location

2910 Griffith Rd
Winston-Salem, NC 27103