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How to Spot Foundation Damage in Your Basement

2 min read
How to Spot Foundation Damage in Your Basement

Learn the early warning signs of foundation damage in your basement and when to call a professional masonry expert.

Early Warning Signs of Foundation Damage

Foundation issues can lead to serious structural problems if left unchecked. Here are key indicators that your basement foundation may be compromised:

  • Cracks in Walls or Floor: Horizontal cracks are particularly concerning as they often indicate pressure from outside soil.
  • Moisture or Water Seepage: Persistent dampness or water intrusion suggests foundation vulnerabilities.
  • Bowing or Leaning Walls: Walls that are no longer plumb may indicate significant structural issues.
  • Uneven or Sloping Floors: A floor that isn't level could signal foundation settlement.
  • Doors or Windows Sticking: When frames become misaligned due to foundation movement.

Types of Foundation Cracks and What They Mean

Not all cracks are created equal. Understanding the difference can help you assess severity:

Vertical Cracks

These are often caused by normal settling and are typically less concerning. However, they should still be sealed to prevent water infiltration.

Horizontal Cracks

These are serious warning signs that indicate lateral pressure against your foundation walls, often from soil expansion or hydrostatic pressure.

Stair-Step Cracks

Common in block or brick foundations, these follow the mortar joints and often indicate uneven settling or soil issues beneath the foundation.

When to Call a Professional

While minor hairline cracks may be monitored, contact a masonry professional immediately if you notice:

  • Cracks wider than 1/8 inch
  • Any horizontal cracks
  • Cracks that are growing or changing
  • Multiple cracks in the same area
  • Signs of water intrusion alongside cracks

Preventative Measures

Protect your foundation with these proactive steps:

  • Maintain proper drainage around your home
  • Keep gutters clean and downspouts extended away from the foundation
  • Monitor soil moisture levels around your foundation
  • Schedule regular foundation inspections

At 519 Trough & Exterior, we specialize in foundation repair and restoration throughout London, Ontario. Contact us for a professional assessment if you suspect foundation issues in your home.

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