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Crawl Space Foundation Repair Costs

According to, in Knoxville, TN based on surveys with homeowners, foundation repair costs range from $3,500 to well over $10,000 and even well into $30,000. The majority of foundation repair costs ranging between $4,250 and $9,300 and the average foundation repair cost in East TN is $6,775.

Crawl Space Jack Posts

Crawl Space foundation repair is common in East Tennessee because wet crawl spaces can lead to mold and termite damage. Wood rot leads to sagging floors, damaged sub-floors and weak or even broken floor joists. Wood rot fungus is very common in crawl spaces with high humidity. High humidity can come from standing water or open vents.

Many homeowners in East Tennessee are looking for solutions to their wet crawl spaces through crawl space encapsulation, crawl space dehumidifiers and proper crawl space insulation. Before addressing foundation problems having a crawl space ninja assess the crawl space is the best way to determine the proper course of action.

Crawl Space Foundation Cracks

A foundation wall crack can occur due to settling of the foundation, temperature changes, hydrostatic pressure or structural problems. Ignoring the early warning signs of a crawl space foundation repair can lead to high foundation repair costs.

Foundation cracks can be corrected easily in many cases but it is important to ensure the problem is not a major foundation issue.

Foundation piers are installed in many crawl spaces as well as scabbing new floor joists when there is mold damage or termite damage. Making sure mold is corrected before starting foundation repair is vital to keeping the foundation repair costs down.

Crawl Space Foundation Warning Signs

  • Doors that stick or do not open properly
  • Windows that are hard to open or appear uneven
  • Cracks in foundation walls
  • Separation of walls from adjoining floors
  • Cracks in Exterior walls
  • Separation of walls from adjoining walls
  • Cracks in Interior walls
  • Separation of walls from adjoining ceilings
  • Cracks in ceilings
  • Uneven floors
  • Water intrusion

Crawl Space Foundation Floor Joist Repair

Fixing sagging and rotten floor joists is needed to correct sagging floors. Sagging floor repair can be accomplished with a combination of floor joist jacks and sistering floor joists.

Making sure you correct what caused the sagging floor is vital as well. Termites and mold or wood rot fungus are typically present in sagging floors and rotten joists in a crawl space.

Getting a crawl space foundation inspection is vital to determining if cracks in the walls, bowing walls or other foundation problems are cosmetic or causing structural damage.

Crawl Space Encapsulation Videos

Check out our latest crawl space encapsulation videos by subscribing to our YouTube Channel. Arm yourself with the correct way to fix your crawl space to protect yourself, your family and your home.

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