Leaky Basement in NE, IA, and MO, including Omaha, Lincoln & Sioux City.
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Products & Services
Basement Repair Services & Products
Waterguard Interior System
Drytrak Drainage Channel
Trenchdrain Drain Grate
Iceguard Discharge Line
Flexispan Wall Crack Repair
Polyurethane Crack Sealing
Wellduct Window Drainage
Brightwall Waterproof Panels
Thermaldry Wall Barrier
Basement To Beautiful Pre-finishing Wall Insulation Panels
Drain Tile Installation
Supersump Pump System
Triplesafe Pumping System
Ultrasump Battery Back Up
Sanidry Dehumidifier
Crawl Space Repair Services & Products
Cleanspace Encapsulation Vapor Barriers And Liners
Turtle Access Hatch
Everlast Crawl Space Doors
Sanidry Csb Dehumidifier
Smartdrain Water Drainage
Silverglo Wall Insulation
Terrablock Floor Insulation
Smartsump Sump Pump
Crawl-o-sphere Crawl Space Fan
Wallcap Block Wall Sealer
Smartvent Flood Vents
Foundation Repair Services & Products
Push Pier Underpinning For Settlement, Foundation Leveling, Sinking Foundation Repair
Geo-lock Wall Anchors
Geo-lock Helical Anchors
Powerbrace Bowed Wall Repair
Carbonarmor Fiber Wall Repair
Smartjack Crawl Space Support
Slab Pier Repair
Polylevel Concrete Lifting
Ez Post Deck Repair
Shotcrete Wall Restoration
Finishing / Remodeling
Everlast Wall Panels
Insulated Wall Panels
Premier And Linen Ceiling Tiles: No-sag Warranty
Thermal Dry Floor Tiles
Millcreek Faux Wood Flooring
Sunhouse Window Wells
Everlast Window Replacement
Rockwell Egress Window


Company Awards
The Best Of Houzz award is given in two categories: Design and Customer Satisfaction. Design award winners’ work was the... [Read more]
Voted as the peoples choice in three categories Employer - Basement Repair - Electrical Company for the Sarpy County 2015... [Read more]
Voted first place for the Best basement Waterproofing and Repair company in the Omaha metro area. Thank you Omaha for... [Read more]
More Awards

Sioux City IA's Experienced Contractor

I selected Thrasher because of high humidity levels and mold in our basement.  We also had water coming in through...
Happy Customers Surrounding Sioux City, IA
Work requests

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Reviews From Sioux City
Testimonials From Sioux City
We called Thrasher because we understand that we need to do something to keep the problem from getting worse. Charles (sales rep) did an excellent job. We...
Testimonial by Connie G. from Sioux City, IA
I'm sure other companies have similar products but I'm more likely to go with the company that is locally based and has knowledgeable and kind staff
Testimonial by Ashley P. from Sioux City, IA
I was very impressed with the representative. He knew immediately the cause of my problem and told me how to solve it. If in the future I would need the...
Testimonial by Phyllis K. from Sioux City, IA

Foundation Repair & Basement Waterproofing

Our company has been Sioux City's trusted contractor for the past 40 years. We are your expert for basement waterproofing, basement finishing, foundation repair, concrete lifting and more. Tell us the problem and we will provide the solution.

Concrete Lifting & Crawl Space Repair 

Basement Systems is a nationwide network of contractors and we are the authorized dealer of Sioux City. We receive regular training and exclusive access to 25 patented products. Give us a call today to get started. 

Why Choose Us: 
  • Completely free consultation & estimate
  • Crawl space encapsulation warranted for 25 years
  • Financing options available
  • Patented, waterproof products for basement finishing
  • 25 year warranty on foundation products
  • PolyLEVEL used for concrete lifting
  • Basement Waterproofing has lifetime transferable warranty
  • In-house team of geotechnical engineers

Get Your Free Estimate

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
Flood Prevention, How to Troubleshoot your Sump Pump.... [Read more]
Why is it Important to Hire a Professional Basement Waterproofer?... [Read more]
Work Requests From Sioux City, IA
Dupont in Sioux City
Did home testing results show high levels almost double the standard Additional information: How did you hear about us?: Other
Mayhew Ave in Sioux City
We would like to finish our basement but recently found a small area that is leaking every now and then. Additional information: How did you hear about us?: Other
Dodge Ave in Sioux City
We have a retaining wall that is starting to tilt, we are looking into buying this house and want to know what the cost is to repair it or if its even possible. thank you Additional information: How did you hear about us?: Internet
Kateri Way in Sioux City
Want to determine options for a leak in basement? Additional information: How did you hear about us?: Other
Pawnee Place in Sioux City
Would like a confirmatory test to one that was performed last week.
Serving the following Sioux City, IA zip codes
51101, 51102, 51103, 51104, 51105, 51106, 51108, 51109, 51111