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Over Spanned Floor Joists

Dealing with floors that sag, dip, or feel unstable underfoot can be more than just an irritation—it’s a possible safety risk, stemming from over spanned floor joists beneath your home. 

JES Foundation Repair, serving the mid-Atlantic region, including Virginia, Washington, DC, Maryland, Northeast NC, and West Virginia, specializes in rectifying crawl space issues like over spanned floor joists. Utilizing the innovative SettleStop™ IntelliJack™ Crawl Space Jacks, we provide your home with the necessary reinforcement to ensure a secure and level foundation. 

In this comprehensive guide, we’ll explore the ins and outs of over spanned floor joists—their causes, effects, and the professional solutions offered by JES Foundation Repair, your trusted partner in foundation and crawl space repair

Understanding Over Spanned Floor Joists 

Over spanned floor joists happen when the joists supporting your main floor are too widely spaced or lack the strength to support your home’s weight. This oversight can lead to various problems, including: 

To ensure your floors are flat, stable, and robust, addressing over spanned joists is critical. It prevents further structural damage and maintains the safety and value of your home. 

Factors Leading to Over Spanned Floor Joists 

Over spanned floor joists can result from a variety of factors: 

  • Moisture: Excessive dampness or humidity in crawl spaces can deform and weaken joists. 
  • Pests: Insects like termites can severely compromise joist strength. 
  • Foundation Shifts: Changes in the foundation can unevenly distribute stress, affecting joists. 
  • Building Flaws: Incorrect initial joist spacing can result in a lack of support. 
  • Time: With age, floor joists can lose strength without proper support. 

Early detection and intervention are key to preventing extensive damage and maintaining the integrity of your home’s structure. Regular check-ups can catch issues before they become critical, ultimately saving you from more substantial repairs. 

Repairing Over Spanned Floor Joists 

Over spanned floor joists are indeed fixable, and prompt action is vital to prevent escalating damage and maintain the safety and stability of your dwelling. 

Simple fixes or makeshift solutions often don’t provide the long-term stability needed. Moreover, do-it-yourself repairs can be risky and end up being costly if not done correctly. 

JES Foundation Repair approaches floor joist issues with a thorough, professional strategy, ensuring your floor’s entire support system is properly reinforced. Our solutions are designed to bring permanent stability to your home’s structure. 

JES Foundation Repair’s Method for Joist Repair 

Our professional team at JES Foundation Repair handles over spanned joist issues with the following steps: 

  • Complete crawl space inspection to identify damage and determine the best course of action. 
  • Customization of the IntelliJack™ support system to fit your crawl space’s specific needs. 
  • Installation of a solid concrete base for the IntelliJack™ supports. 
  • Assembly of the IntelliJack™ system, securing them to the base and the joist. 
  • Precise adjustments to the support system to stabilize and lift the floors. 
  • Implementation of waterproofing solutions like drainage and sump pumps
  • Sealing vents, replacing doors, and insulating crawl space walls
  • Crawl space encapsulation with a vapor barrier
  • Controlling humidity with a dehumidifier
  • Offering ongoing maintenance to ensure the effectiveness of the repair solutions. 

JES Foundation Repair brings customized, superior solutions to the table, ensuring that your home receives the most effective support against over spanned joists. 

The Importance of Addressing Over Spanned Floor Joists

There are several compelling reasons to repair over spanned floor joists promptly: 

  • To halt further structural damage and extend the life of your home’s architecture. 
  • To guarantee the safety of your family and the structural integrity of your home. 
  • To preserve and potentially increase your home’s market value. 
  • To avoid the necessity and additional expense of future, more extensive repairs. 

With JES Foundation Repair, you gain access to our proprietary products designed to provide a comprehensive solution for over spanned floor joists, ensuring your home’s long-term stability and safety.

Choose JES Foundation Repair for Your Crawl Space Repair Needs 

Facing problems with sagging or unlevel floors? JES Foundation Repair is your professional ally in the mid-Atlantic region. 

Contact us for a no-cost inspection and to discuss your crawl space repair needs. Our team is ready to develop a robust floor support plan that will stand the test of time. Start on the path to a secure and stable home today. 


DIY repair of over spanned floor joists is not advisable. Incorrect handling could lead to more severe problems, risking your home’s stability and your safety. For efficient, professional-quality repairs and peace of mind, it’s best to consult with JES Foundation Repair. We offer free inspections and estimates to assess and address your needs effectively.

Costs can vary widely, depending on the damage extent and the repair solutions needed. JES Foundation Repair provides complimentary inspections and estimates, transparent pricing, and flexible financing options tailored to your situation.

The duration of the repair work can fluctuate based on the damage’s severity, the size of the area requiring repair, and the repair approach chosen. JES Foundation Repair’s skilled teams work meticulously to reduce disruption and complete the job efficiently. A detailed timeline will be offered during your free inspection

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JES Foundation Repair service area map of the Mid-Atlantic region.

Our Locations


8361 Town Center Ct
Nottingham, MD 21236


311 Central Rd.
Suite 2-02
Fredericksburg, VA 22401

Hampton Roads & NE NC

2569 Quality Ct
Virginia Beach, VA 23454

Northern VA & DC

7940 Gainsford Ct.
Bristow, VA 20136


309 Quarles Rd
Ashland, VA 23005

Southwest Virginia / Roanoke

2033 Cook Dr.
Salem, VA 24153

Western Virginia

456 Old Courthouse Rd
Appomattox, VA 24522


45 W Boscawen St,
Winchester, VA 22601