

United Structural Systems is the go-to choice for Middle TN, Kentucky, and Northern Alabama construction companies and engineers. USS’s qualified team of experts can meet any underpinning challenge by designing and installing an underpinning system tailored to your specific situation.
Expert Underpinning & Foundation Repair in Nashville
What is underpinning?

In some ways, commercial foundation repair is similar to residential foundation repair because many of the same techniques, such as underpinning, can be used.
Underpinning is the process of extending the load bearing portions of the foundation to a deeper elevation, usually bedrock. This is accomplished by excavating to expose the foundation, attach the pier bracket to the foundation and using the reciprocal load of the structure. Piles are hydraulically driven to end bear on bedrock. After all piles have been installed, the structure can be lifted back to its original elevation or stabilized in place.
Underpinning can be used as a foundation repair method in a variety of situations, such as:
- To lift and stabilize a settled structure.
- Increase the capacity of an existing foundation or remove the surcharge load of a structure from nearby excavations.
- USS can design and install an underpinning system tailored to your specific situation.
If you have commercial, municipal, or any other type of structure, call or contact United Structural Systems to schedule an appointment with a qualified foundation repair expert to assess your needs.
Recent Projects
USS has underpinned apartments, churches, commercial properties, municipal or government buildings, plants, hospitals and more. Below are just a few examples of commercial underpinning projects we have completed:
- Brighton Valley Apartments
- Celebration Lutheran Church
- City of Franklin
- Cooks United Methodist Church
- Community Options, Inc.
- David Lipscomb University
- Hickory Glade Condos
- Montgomery County Municipal Buildings
- Nissan
- Northcrest Medical Center
- Pinnacle Heights Apartments
- Lakes of Bellevue Apartments
- LaVergne First United Methodist Church
- Steeplechase Homeowners Assoc.
- Goodpasture Christian School
- Rutherford Co. Board of Education
- Self Storage
- Tennessee Technology Center
- USAA Insurance Co.
- United Parcel Service (UPS)
- U.S. Postal Service – Brentwood
- U.S. Postal Service – Antioch
- Woodbine United Methodist Church
- YMCA
Hear from happy customers
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“I have rarely dealt with any company that comes close to USS in the quality of work they do, and in the honesty, ethics, character, and integrity of their company, staff, and repairmen.” Sandra
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“USS is my go-to vendor for everything related to foundation concerns and repairs!” M.E. Myhre - Compass Realty
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“If you need foundation repairs this company definitely has your best interest at heart and are very straight forward and honest to deal with.” JV
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“A fantastic result. When completed, this "crawl space" will become a 1500sf suite with 9'6" ceilings. Could not have done this without USS.” Rob B.
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“Very satisfied customer and I’m able to sleep better during heavy rain not worrying about my crawl space anymore!” Steven F.

We're the right choice.
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Lifetime GuaranteeAt no additional charge, we offer transferable lifetime warranties on our foundation repair and waterproofing services.
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An Experienced TeamWe’ve worked with over 25,000 customers in Tennessee, Kentucky, and Alabama. Many of our team members have been with us for 5, 10, 15 years or longer.
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Hundreds of 5-Star ReviewsOur customer reviews speak for themselves. Click here to check them out.
call for a free consultation.
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25+ Years and CountingWe’ve been serving residential and commercial customers since 1994.
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Payment & Financing OptionsWe don’t ask for payment until the repairs are completed. We offer financing plans, accept major credit cards and personal checks.
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We Won't Sell You An Unnecessary RepairIf your foundation doesn’t need a repair, we’ll let you know.
