Home Inspector Bloomington MN
Structure defect

Efflorescence on Foundation Walls

White crystalline mineral deposits left where water has migrated through masonry.

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What it is: White crystalline mineral deposits left where water has migrated through masonry.

Why it matters

Efflorescence itself is harmless but is a reliable marker of past or present moisture intrusion.

Efflorescence on Foundation Walls during a Bloomington MN home inspection

Why it's common in Bloomington

Common in Bloomington basements with grading or downspout-discharge problems.

Signs to watch for

  • white powdery residue on block/concrete
  • damp odor
  • staining

What we check during the inspection

We note efflorescence and trace likely moisture sources (grading, gutters, drain tile).

How it's typically corrected

Correct exterior drainage first; address the source, not just the symptom.

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