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Basement Waterproofing in NE, IA, and MO, including Sioux City, Council Bluffs & Omaha.
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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 Spencer, IA 51301

Happy Customers Surrounding Spencer, IA
Testimonials
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Reviews From Spencer
Testimonials From Spencer
Selected Thrasher because of the annual State of Iowa promotion to measure radon.
Testimonial by William O. from Spencer, IA
We appreciate what your company does to make a healthier living environment.
Testimonial by Ken H. from Spencer, IA
Our crawlspace was just a dark place I didn't ever want to go into. They were very polite, professional, and helpful.
Testimonial by Sandy O. from Spencer, IA

Responsible basement refinishing and remodeling company serving SpencerIA

We not only adhere to the highest industry standards, we strive to be the industry leader in the basement finishing services we provide. We also use state-of-the-art products and technology which are designed to upgrade your home with more living space in the basement. We are the authorized Basement Systems dealer inSpencerIA.

Services we offer in Spencer:

  • Remodeled basement ideas
  • Basement flooring
  • Basement ceiling tiles
  • Refinished basement services
  • Non-organic basement materials so ward off mold growth
  • Help if you need your basement waterproofed before you remodel
  • Foundation repair services and products
  • Concrete Lifting and Leveling for settled slab / mudjacking alternatives
  • Radon testing and mitigation services
  • Financing Available
  • FREE written estimates and inspections, and fast installatio
News & Events From Spencer
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]