Skip to Main Content

Over Spanned Floor Joists

Floors that dip, sag, or bounce can indicate underlying issues with over spanned floor joists, compromising the comfort and safety of your home. 

Mount Valley Foundation Services, serving South Carolina and Western North Carolina, offers expert repair for over spanned floor joists. Our use of the advanced SettleStop™ IntelliJack™ Crawl Space Jacks ensures that your home stands on a firm and level foundation, providing peace of mind and structural integrity. 

This guide will outline the signs and causes of over spanned floor joists and detail the professional crawl space repair solutions that Mount Valley Foundation Services provides to address and prevent future issues. 

Identifying Over Spanned Floor Joists 

When floor joists are spaced too far apart or lack the necessary strength, you encounter over spanned floor joists, which can manifest as: 

Correctly spanned joists are vital for maintaining flat, firm, and structurally sound floors. Proactively addressing any signs of over spanned joists is key to preventing further damage and ensuring the safety and stability of your home. 

Exploring the Causes of Over Spanned Floor Joists 

Over spanned floor joists can be due to a number of reasons: 

  • Moisture: High humidity and wet conditions can cause wooden joists to warp, leading to floor sagging. 
  • Pest Infestation: Termites and other pests can eat away at the joists, weakening the structural support. 
  • Foundation Shifts: Settling or movement in the foundation can distribute stress unevenly, impacting joist performance. 
  • Construction Oversights: Joists may have been initially spaced too far apart, resulting in inadequate support. 
  • Wear and Tear: As a home ages, the joists can degrade if they aren’t sufficiently reinforced. 

Early intervention based on a thorough inspection can stave off major repairs, ensuring your home’s infrastructure remains secure. Regular maintenance is critical for early detection of these issues. 

How to Repair Over Spanned Floor Joists 

Fixing over spanned floor joists is critical to avoid progressive damage and to maintain the safety and stability of your home. 

While temporary fixes or DIY solutions may seem convenient, they often fail to provide a long-term solution. Professional repairs are necessary for a comprehensive and safe approach. 

Mount Valley Foundation Services addresses these issues with a full range of professional solutions, ensuring that the entire floor structure receives proper, lasting support. 

Mount Valley Foundation Services’ Repair Strategy 

Our team at Mount Valley Foundation Services corrects over spanned floor joists using the following approach: 

  • Comprehensive inspection to assess the extent of crawl space damage and plan the repair. 
  • Custom-fit the IntelliJack™ support system to the specific requirements of your crawl space. 
  • Install a solid concrete base to anchor the IntelliJack™ supports. 
  • Erect the IntelliJack™ system, securing it to both the base and the joist. 
  • Fine-tune the support system for optimal stabilization and lifting of the floor. 
  • Implement waterproofing solutions to prevent future moisture-related issues. 
  • Seal off crawl space vents, update doors, and insulate walls
  • Encapsulate the crawl space with a vapor barrier to control moisture. 
  • Install a dehumidifier to manage crawl space humidity levels. 
  • Provide routine maintenance to ensure the repair system remains effective. 

Mount Valley Foundation Services offers a suite of tailored solutions that surpass generic market options, providing your home with the best defense against over spanned joists. 

Why Immediate Repair of Over Spanned Floor Joists Is Crucial 

Promptly addressing over spanned floor joists is necessary for several reasons: 

  • To halt further structural damage and ensure the integrity of your home’s architecture. 
  • To provide a safe living environment for your family. 
  • To maintain, and possibly enhance, your property’s value. 
  • To prevent the need for more extensive, costly repairs in the future. 

Rely on Mount Valley Foundation Services and our specialized, custom-designed products for a complete and reliable fix for over spanned floor joists, ensuring the long-term stability and safety of your home. 

Contact Mount Valley Foundation Services for Skilled Crawl Space Repairs 

If you’re grappling with the effects of over spanned floor joists, such as sagging or unlevel floors, turn to Mount Valley Foundation Services for expert assistance. 

Schedule a free inspection with us to discuss your crawl space repair needs. Our seasoned professionals are prepared to develop a comprehensive floor stabilization strategy that will stand the test of time. Take the next step towards securing a stable and safe home environment. 


The time required for repairs will depend on the severity of damage, the area needing repair, and the repair methods used. Mount Valley Foundation Services’ teams work with efficiency and precision to minimize inconvenience and complete repairs promptly. You will receive a detailed timeline during your free inspection. 

The cost of repairs varies based on the scope of damage and the required interventions. Mount Valley Foundation Services provides free inspections and estimates, along with transparent pricing and flexible financing options to suit your budget. 

We strongly advise against attempting to fix over spanned floor joists on your own. Improper repairs can exacerbate problems, compromise your home’s stability, and put your safety at risk. Mount Valley Foundation Services offers free inspections and estimates, ensuring that repairs are conducted professionally and effectively.

Mount Valley Service Map

Our Locations

Asheville Location

53 N Market St, Suite 5
Asheville, NC 28801

Augusta Location

630 Ellis Street, Suite 2-B
Augusta, GA 30901

Charleston Location

1850 Ashley River Rd
Charleston, SC 29407

Columbia Location

2110 Commerce Drive
Cayce, SC 29033

Greenville Location

300 South Ave
Spartanburg, SC 29306

Myrtle Beach Location

1704 N. Oak Street, Suite 3
Myrtle Beach, SC 29577

Savannah Location

6606 Abercorn St., Suite 211
Savannah, GA 31405