Sunken Foundation Repair Services

A sunken foundation is a form of settling, where the weight of the structure shifts on its underpinnings.

Stairstep Crack on Exterior Block BuildingThis can happen when a foundation is laid upon unstable soil or installed incorrectly. Unstable soil expands, contracts and erodes over time due to moisture content, creating uneven pressures and gaps under floors. This can cause cracked, buckling or heaving floors or sinking foundation walls, creating openings for moisture and infestations and threatening the structural integrity of your home. Minor symptoms include windows or doors becoming jammed or misaligned, cracks forming in basement walls or a chimney starting to lean. Cracks that are wider towards the top can be a telltale sign that your foundation has begun to sink. 

Solutions for sunken foundations can vary but generally begin with pier slab support to stabilize and restore the structure’s weight on the pier’s brackets and to fill gaps underneath the basement floor. The two most common pier solutions are helical piers and push piers. Helical piers are screwed into the ground to reach more stable, load-bearing soil, while push piers are pushed into the ground, the supporting bracket under the foundation footings helping to drive them deeper.

Our Approach to Sunken Foundation Repair

Trust Thrasher’s team of experts — backed by structural engineers — for long-lasting repairs for your sunken foundation. For almost five decades, we’ve worked to test and refine our foundation repair services. And when it comes to a sunken (or a sinking) foundation, we’ve seen it all. 

After a thorough evaluation of your foundation issues and site, we may recommend a foundation piering solution. Once your foundation is stabilized, we can then repair any remaining issues like foundation cracks or bowing walls.

With Thrasher, you receive a 25-year transferable warranty as well as guarantees on satisfaction, efficiency, and property protection. Your satisfaction matters to us here, and we want to make sure you are happy with our sunken foundation repair services.

When you’re ready for Thrasher to take a closer look at your foundation issues, set up an appointment that works with your schedule. And we will deliver a same-day, no-obligation estimate with transparent pricing.

Thrasher Service Areas

Proudly Serving Sioux City, Omaha, Wichita, Grand Island, Kansas City and more.

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Need financing? We've got you covered.

Cracked foundations, leaky basements and mildewy crawlspaces are often serious problems that shouldn't be ignored. If you feel you've put your repair project off long enough, financing can help you get it done now instead of later. It's not worth gambling with the investment you've made in your home!

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Frequently Asked Questions

  • Drywall cracks on interior walls are not uncommon as your house settles in its foundation. Cracks that are thin and straight, especially on a seam, could be the result of a lack of drywall mud underneath, allowing the tape to lift. Cracks that have discoloration are likely due to a water leak. Diagonal, large or jagged cracks likely indicate a foundation problem or other structural issues.

  • A foundation repair project generally takes less than a day to complete with the proper
    assessment, trained experts and the right equipment. For repairs that require some yard
    disturbance – wall anchors or pier solutions -- a small surrounding area must be excavated,
    although disturbance is kept to a minimum, allowing for working in tight areas. The more
    widespread foundation problems are, the larger the repair system required, taking extra time.
    Once the project is completed, all signs of work will be covered as dirt is put back into place and
    landscaping restored.

  • Many minor cracks are simply visual, and not indicative of serious structural damage. However, to distinguish this from cracks that might show larger problems, you must look at the size and
    number of cracks. If cracks are more than 1/8 inch or spanning a large surface area, that's probably serious. If the cracks are growing over time, it likely signals the foundation starting to give way under pressure,which could become a very serious issue.

  • There are several precautions to take when preparing your basement for finishing. First, make sure there are no moisture issues, including leaks, pooling water or condensation or dampness gathering on walls or other surfaces. Second, make sure all of the basement walls are plumb (straight vertical) and the floor is flat horizontally. If either of these things are off, that could indicate deeper structural issues that need to be remedied. Third, get your basement checked for radon and take appropriate steps to have any radon mitigated.

  • Thrasher Foundation Repair guarantees customer satisfaction and offers a fully transferable warranty. Basement waterproofing, crawl space and most foundation repairs are backed by 25-year warranties, while concrete repairs have a 5-year warranty and egress windows have a10-year warranty. The warranty is attached to the property, so not only does the warranty transfer to the new owner if you sell your home, it will also transfer to any future owners that buy your home! In addition, free basement inspections are offered, regardless of whether anything's been installed up to that point. We want the best work done with the best value for you.

  • A push pier is a series of sectioned hollow, galvanized steel pipes, which can fit together into a longer shaft and can be installed on the exterior or interior of your home. Normally installed on the exterior, a small area will be excavated to create access for the push pier’s bracket to sit completely underneath the foundation’s footing. Installed inside, a section of the floor will be cut out to achieve this access. In the process of installation, the sections of pipe are driven down through unstable dirt until they can be firmly footed in load-bearing soil. After adjustments to restore the foundation are complete, exterior installations are covered by dirt and restored landscaping. Interior installations are covered when the floor section is repaired with concrete.

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