What Causes Foundation Cracks?

Cracks form when stress exceeds the strength of your foundation materials. Common causes of foundation cracks include:

• Hydrostatic pressure from wet or poorly drained soil

• Foundation settlement due to unstable or compacting soil

• Seasonal freeze-thaw cycles expanding and contracting concrete

• Improper grading or water runoff near the foundation

• Poor construction or weak footings

• Tree roots or nearby excavation shifting the soil

Types of Foundation Cracks

Identifying the type of crack can help determine the severity and root cause:

• Vertical cracks – typically caused by concrete shrinkage or minor settling; may allow water intrusion

• Diagonal cracks – usually signal uneven settlement and require further evaluation

• Horizontal cracks – often caused by lateral pressure and a red flag for structural movement

• Stair-step cracks – common in block foundations and may indicate soil pressure or settlement

• Cracks wider than 1/8 inch or growing over time – usually a sign of worsening conditions

How Force Basements Fixes Foundation Cracks

We offer tailored repair solutions based on the type, size, and cause of the crack. Options may include:

• Epoxy or Polyurethane Injection – For sealing leaking or structural cracks

• Carbon Fiber Reinforcement – For walls under pressure or showing early bowing

• Exterior or Interior Waterproofing – To prevent future water entry

• Push Piers or Helical Piers – If cracks are due to foundation settlement