Sagging or Bouncy Floors
Soft, sloping or bouncy floors above a crawl space. Here's what causes it and how we fix it.
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Signs to Watch For
- Soft, sloping or bouncy floors above a crawl space.
- Damp or stained drywall, flooring or storage boxes
- Musty odour or noticeably higher humidity
- Problems that worsen after rain or spring melt
What Causes It
Most basement moisture comes from groundwater and surface water building up against the foundation, humid air meeting cool concrete, or drainage that can't keep up. In Calgary, clay soils that hold water and rapid freeze-thaw cycles make these issues common.
Why Not Wait?
Moisture rarely fixes itself. Left alone, it can damage finishes, stored belongings and indoor air quality — and repairs get more costly over time.

Book Your Free Inspection
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Recommended Solutions
Floor Stabilization
Firm up sagging or bouncy floors above your crawl space with adjustable floor and joist supports installed underneath.
Learn more →Crawl Space Repair & Waterproofing
Turn a damp, musty crawl space into a clean, dry, sealed area with encapsulation, drainage and moisture repair.
Learn more →How It Works

- Beam sags between supports
- Weakened or undersized posts
- Floors above feel bouncy or uneven

- Adjustable steel supports
- Solid footings under each post
- Beam brought back to level