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

Grand Island NE's Responsible Contractor

Grand Island, NE homeowner is very pleased with the 'WOW' service he received from Thrasher Basement Systems. Listen to his...
Happy Customers Surrounding Grand Island, NE
Work requests

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Reviews From Grand Island
Testimonials From Grand Island
I am a repeat customer, Thrasher had previously installed anchors on our north wall.
Testimonial by Joyce B. from Grand Island, NE
We had mildew in our crawl space.
Testimonial by David M. from Grand Island, NE
Thrasher has the type of system I needed to stop my walls from falling in.
Testimonial by Russell J. from Grand Island, NE

Foundation Repair & Basement Waterproofing

For the past 40 years we have been providing quality work to homeowners in Grand Island. This work has included: basement waterproofing, basement finishing, concrete leveling, foundation repair and more. We know how to the get the job done and make sure that it is done right. 

Concrete Lifting & Crawl Space Repair 

We are the authorized contractors in Grand Island of the basement systems network. Our crews receive regular training to make sure that they are up to date with the latest techniques and code requirements. We also have exclusive access to over 25 patented products which we install in your home. Give us a call today so we can talk about the solution to the problem you are facing. 

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

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Job Stories From Grand Island, NE
PolyLevel Makes a Safe Driveway For Grand Island Homeowner

Dean E., a policeman in Grand Island had a driveway made up of six concrete panels.  One of the panels closest to the garage had a large crack in it and was starting to settle causing a 2 inch ledge.  Being a policeman he knew of the legal actions that would be taken against him if someone fell and got injured due to the gap.  He knew something had to be done ASAP to fix it. After a quick search online he knew who to call, the professionals at Thrasher Basement Systems. 

Not too long after the call, specialist Brian Marron was out to Dean's home to inspect the driveway.  The solution he close was quick and simple.  This was to have foreman Collin Crouch come out and to lift the slab back up with the PolyLevel system.  This is done by drilling small (penny sized) holes in the slab using specially designed equipment to inject a structural grade polymer into the void. After the void is filled, the expanding properties of the polyurethane allows for an accurate lift and leveling of the slab.

Dean no longer has the worry of others or himself falling and getting hurt all thanks to this simple system by Thrasher Basement Systems!

Work Requests From Grand Island, NE
Shanna St in Grand Island
Egress window leaks and floods bedroom everytime it rains. Additional information: How did you hear about us?: Other
W. Charles St. in Grand Island
We are purchasing a home at the listed address above and had a reading of 5.3 on the radon test we had conducted. The basement of our house is approximately 1,062 sq. ft. and the upper level is exactly the same size. We are looking for an estimate to have a mitigation system installed. Please email me any time or call after 4:00pm to help us out. Thank you!
Allen Ave. in Grand Island
I have an outside concrete slab that has settled. It has my air conditioner condenser on it. The slab has settled and water slopes toward the house foundation. Additional information: How did you hear about us?: Internet
Indianhead Dr. in Grand Island
I have water coming in through egress windows and mold in basement that was finished off in 2010.
N Kruse Avenue in Grand Island
Leaking block wall in basement Additional information: How did you hear about us?: Other