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Restore the integrity of your foundation.

Foundation Repair & Sump Pumps

Protecting and restoring the strength, safety, and integrity of your foundation shouldn’t break the bank.

At Unerstall Foundations & Flatwork Inc, we provide affordable, efficient, and results-driven foundation repair and sump pump installation. Located in Franklin County, MO, no basement foundation repair project is too far out of our reach. We proudly serve residential and commercial clients throughout the Greater St. Louis metro area!

Need foundation repair? Call us at 636-584-1052 for a free estimate.
Sump pump services by Unerstall Foundation & Flatwork

Foundation Wall Stabilization & Straightening

Foundation problems can lead to costly and dangerous structural damage to your home or commercial property. As a premier foundation builder, we provide high-quality foundation stabilization and straightening services.

One of our repair technicians is happy to provide a thorough examination of your foundation, diagnose the problem, and develop an efficient course of action.

Utilizing the Gorilla Wall Braces® system, carbon fiber straps, yard anchors, and other state-of-the-art concrete equipment, we’ll get the job done right, on-time, and within your budget. We also provide low-pressure epoxy and urethane injections for minor foundation and basement wall cracks.

We repair poured concrete and concrete block foundations. We also repair some stone foundations.

What are the warning signs of foundation problems?

Foundation issues aren’t always noticeable. However, if caught early, our repair technician can help you avoid major structural damage and costly repairs.

Here are the warning signs you may need foundation repair:

  • Cracks in the basement walls or floors
  • Uneven or sinking floors
  • Foundation upheaval (moving upward)
  • Spaces around exterior doors & windows
  • Damp crawl space

If you notice any of these signs, contact us today for an assessment and free estimate.

Interior Sump Pump Installation

Do you experience frequent water accumulation in your basement? Installing a sump pump is an effective solution to reduce moisture and prevent flooding ‒ but don’t take the DIY approach.

Our team will install a new, cast iron sump pump system that includes oil bathed gears and battery backup for an additional charge. We can also install a drain tile system in conjunction with your sump pump.

What are the signs you need a sump pump?

Basement leaks are inevitable, and while not every home needs a sump pump system, having one installed on your property can better protect your foundation from flooding and water damage.

Frequent basement flooding is the telltale warning sign your property could benefit significantly from a sump pump. If you experience peak flooding in the springtime when the snow melts or after periods of heavy precipitation, these are all the more indicative you need a sump pump.

A new sump pump may also be beneficial if you live in a low elevated area.

Have questions? For more information, call 636-584-1052 or send us a message!

Unerstall Foundations & Flatwork Inc


1673 Old Hwy 50 W
Union, MO 63084


Monday ‒ Friday
7:00 AM ‒ 5:00 PM