Sinking Foundation

What Causes a Foundation to Sink?

Your house’s foundation rests on soil. If that soil moves or changes—from drying out, collecting too much water, by tree roots, or poor soil packing—your foundation can shift or settle unevenly. That’s when you get a sinking foundation.

Early Warning Signs

  • Sloping floors inside your home
  • Step cracks in walls or above grade brick cracks
  • Doors and windows that jam or aren’t square
  • Gaps at window sills or doors
Sinking Foundation damage in a Western Pennsylvania basement

Common Soil Issues That Lead to Sinking

  • Evaporation: Hot and dry conditions cause soil to shrink
  • Transpiration: Tree roots dehydrate soil, causing soil shrinkage and settlement of your home’s footing/slab.
  • Drainage problems: Improper drainage causes increased hydraulic pressure in basement walls.
  • Poor building site prep: Improperly compacted fill soil causes construction problems.
  • Poor soil conditions: Expansive clay soil and organic debris cause contraction and expansion of the soil. The conditions contribute to structural failure.

How We Fix It

  • Stabil Loc foundation piers to lift and support foundation
  • Drainage systems to divert water than can cause undermining
  • Seal existing cracks in foundation
Stabil-Loc Sinking Foundation image

Did You Know?

Fixing sinking foundations early helps avoid huge repair jobs later—like replacing walls, floors, detached above-grade blocks or major structural elements.

Why It Matters

  • Keeps your home safe, secure and squared up
  • Protects finishes, floors, and walls above from cracking or shifting
  • Maintains resale value
  • Prevents costly, dangerous damage

Why Choose Us?

lifetime warranty badge

Guarantee You Can Trust

We back our work with a transferrable lifetime warranty. That means, if you sell your home, the warranty goes with it. You get peace of mind for years to come.

  • Over 30 years servicing Western Pennsylvania homes
  • Thousands of satisfied customers who say we’re prompt, thorough, clean, and trustworthy
  • Solutions backed by lifetime warranties or guarantees
  • Certified experts who use high‑quality materials

CONTACT US FOR A
FREE INSPECTION

Please call us for your free, honest inspection at
724-523-6800 or complete the form.

Thank you.