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Paving the way to quality results.


When it’s time to install a new basement floor, sidewalk, or driveway for your property, Unerstall Foundations & Flatwork Inc is ready to help.

Based in Franklin County, MO, we proudly serve as a premier concrete contractor in the Greater St. Louis metro area, providing affordable and high-quality flatwork services and concrete work for residential and commercial clients. We also provide new foundation installation, foundation repairs, and sump pump installation.

No flatwork project is too big or too small. Schedule a free estimate today!
Concrete and cement flatwork by Unerstall Foundations & Flatwork Inc.

Residential & Commercial Flatwork

Let Unerstall Foundations help you lay out an affordable, smooth, and durable concrete slab for your home or commercial property. We provide the following flatwork services:

  • Basement floors
  • Garage floors
  • Sidewalks
  • Patios
  • Porches
  • Steps
  • Driveways
Does your foundation need repairing? We can help!

What are the signs you need professional flatwork?

Despite the strength and durability of concrete, it is especially prone to degrading in a harsh winter climate like Missouri’s.

How do you know when it’s time to repair and replace your indoor or outdoor concrete work?

Telltale signs you should look out for

  • Cracking, chipping, or flaking concrete
  • Uneven surface/concrete settling
  • Broken or cracked edges
  • Dirty concrete & excessive stains

Our concrete estimators are happy to provide a free estimate and help you go over all of your options for concrete work. Contact us today!

Interested in renting concrete forms or concrete equipment? Call us today!

Unerstall Foundations & Flatwork Inc


1673 Old Hwy 50 W
Union, MO 63084


Monday ‒ Friday
7:00 AM ‒ 5:00 PM