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Foundation Repair in NE, IA, and MO, including Omaha, Lincoln & Sioux City.
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Products & Services
  • Wet and flooded basement waterproofing solutions.
  • Foundation and structural repair solutions.
  • Basement finishing and remodeling services.
  • Crawl space sealing with CleanSpace vapor barrier.
  • Concrete Leveling & Lifting
  • Radon gas testing and radon mitigation.
  • Expert egress window installation.
  • French drain or drain tile installation
  • Lifetime warranty on all perimeter waterproofing systems.
  • 25-year warranty against foundation product manufacturing defects.
  • 25-year warranty on crawl space encapsulation systems.
Company Awards
Our sister company Foundation Supportworks was honored May 2014 by the Greater Omaha Chamber of Commerce as the recipient of... [Read more]
We have earned the service industry’s coveted Angie’s List Super Service Award, reflecting an exemplary year of service provided to... [Read more]
Thrasher Basement Systems is proud to be voted, first place for the Best basement Waterproofing and Repair company in the... [Read more]
More Awards

Thrasher Basement Systems serving Sioux City, IA

Happy Customers Surrounding Sioux City, IA
Testimonials
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Reviews From Sioux City
Testimonials From Sioux City
I am very thankful to have a company who does this type of work, it is their area of expertise.
Testimonial by Nila H. from Sioux City, IA
...I just want to say that between the booklet and the time Mike spent with me answering my concerns I received excellent service...
Testimonial by Roberto R. from Sioux City, IA
I selected Thrasher because of high humidity levels and mold in our basement. We also had water coming in through the walls and ground.
Testimonial by Kari W. from Sioux City, IA

Responsible basement waterproofing, foundation repair, remodeling, radon mitigation, crawl space repair contractor serving Sioux City, Iowa 

We adhere to the highest industry standards and  strive to be the industry leader in the services we provide you.

Thrasher Basement Systems uses state-of-the-art products and technologies, which are designed to fix your home. We are the authorized Basement Systems and Foundation Supportworks dealer in Sioux City, IA.

Services we offer in Sioux City:

  • Radon gas testing and radon mitigation.
  • Wet and flooded basement waterproofing solutions.
  • Expert egress window installation.
  • Lifetime warranty on all perimeter waterproofing systems.
  • Foundation and structural repair solutions.
  • Concrete Lifting and Leveling for settled slab / mudjacking alternatives
  • 25-year warranty against foundation product manufacturing defects.
  • Basement finishing and remodeling services.
  • Crawl space sealing
  • French drain or drain tile installation
  • 25-year warranty on crawl space encapsulation systems.
  • Financing Available
  • FREE written estimates and inspections, and quick installation
Press Releases From Sioux City
Ashley Stansifer, Marketing Assistant for Thrasher Basement Systems was a guest on Sioux City's KTIV Siouxland Business Spotlight. During her interview they discussed options for sidewalks, patios, driveways, and concrete shifting due to soil conditions....[Read more]
News & Events From Sioux City
Nebraska and Iowa have been receiving large amounts of rainfall and more is coming. Although the rain is needed in... [Read more]
When it comes to home improvement projects, choosing the right contractor is the first step. Whatever the project, slow down... [Read more]
Spring is finally here! The days are growing longer and the temperatures are getting warmer and as winter loosens its... [Read more]
Serving the following Sioux City, IA zip codes
51101, 51102, 51103, 51104, 51105, 51106, 51108, 51109, 51111