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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

I am a repeat customer, Thrasher had previously installed anchors on our north wall....
Happy Customers Surrounding Grand Island, NE
Work requests

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Reviews From Grand Island
Testimonials From Grand Island
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

Get Your Free Estimate

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
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
W. LaMar Ave in Grand Island
Front porch needs to be raised. Additional information: How did you hear about us?: Other
N. Sherman Blvd in Grand Island
Would like to update my basement. The basement bedroom gets a little water in it every once in awhile in heavy rain maybe a egress window. Additional information: How did you hear about us?: Other
S. Pine St in Grand Island
We were trying to finish our basement and we notice water coming in somewhere under our cement porch. not much but some. And also when we have the water sprinklers on the North side of the house it does the same. Additional information: How did you hear about us?: Internet
Viking Ct in Grand Island
Need to enlarge one basement window into a larger egress/fire escape window. Would also like quote to install another large window in basement family room to allow natural light in.
Briarwood Blvd in Grand Island
Front walk and step have settled. This is a very small mud jacking job but could possibly done in conjunction with another job(s) in the Grand Island area. I'm flexible on timing. Additional information: How did you hear about us?: Internet
E Ashton Ave in Grand Island
My northeast and southeast corners of my basement have water on the basement floor after the rain and would like a quote to see what it would take to get this fixed.
Gold Core Dr in Grand Island
I have two large stamping presses that have settled and have sank down into the ground about 2 inches. i need to raise them back up to floor height. is this something you can do? or know who does this kind of work?
E Phoenix Ave in Grand Island
Basement walls bowing in.
South Arthur Street in Grand Island
We have a bowing block wall in our house, we need to get an estimate to get the walls repaired and somewhat water proofed. Thanks
Stoneridge Path in Grand Island
I have a storeroom in the basement that always smells musty. I run a dehumidifier in the Spring when it is wet outside. It has an opening to the crawl space that I cannot close up because of mechanicals running thru the opening. I just sent in a radon test and am presently waiting on the results. It doesn't really matter the results as I need something done to ventilate/seal the crawl space. I also have noticed mold on the return air vent. My family is gone and I need to "down-size", but I do not want to pass this problem on to the next owner. Please call to set up a time for inspection and estimate. Thanks! Janet
Iowa Ave in Grand Island
I have an existing sump pump but would like to add a second one with battery back up. The hole in the floor is ready to go, all I need is the sump pump and battery back up system. How much would this cost? Thank you.
N. Howard Ct in Grand Island
The wall above the front door of our home has a split that is slowing growing larger. I was referred to you for help.
MICHIGAN AVE in Grand Island
Basement wall on the east side of home has a crake on inside of basement & outside there is a sort of sink hole.
Orleans Drive in Grand Island
We had an at home radon test that was 4.8 pCi/L. It was recommended that we have another test and fix the problem.
Villa Mar Dee Ave in Grand Island
Our house has a full unfinished (partially finished with framing and upper drywall in areas). It has a sump pump pit with I believe a 1 hp pump and a 1/2 hp submersible pump. The smaller pump pipes into the sewer/storm drain? and the other outside. The house also has a tile drainage system? (I think that's what it's called) in the foundation. We get water in the basement during heavy rains (2-3 inches last year). The water does not come through the walls. It seems to come out of the sump pump pit (our sump pumps can't keep up). And up through a crack in the floor when it water gets so high. A few smaller cracks seep some. We would like to eventually be able to finish the basement.
Scheel Dr. in Grand Island
My basement leaks water through the floor when it rains alot. The floor is concrete and there are some big cracks that the water comes in from. The walls are block and they do not leak. The basement is partialy fineshed with studs and drywall. I was just wondering if there is something that you can do about the floor and the cracks that are letting in all the water in the spring?
S. Blaine in Grand Island
We have a dirt crawl space that smells kind of bad (especially in the summer), is very dusty, and is just unpleasant to use for storage. We'd like to investigate encapsulation. Also, we'd conducted a radon test last winter and found the radon level to be slightly elevated. Perhaps encapsulation might help with that too. Thank you
South Vine in Grand Island
Have visible cracks in the exterior of the concrete walls. Had some slight moisture inside during really wet weather.
Ingalls in Grand Island
Ground water in basement
Zola Ln. in Grand Island
We have lived in our house for about 5 yrs. (July 2005) and for the past 3 yrs. we've had a lake in our crawl space. The water level goes up and down periodically but never completely gone. We've had other professionals out but say it's ground water and to let it be but we want another opinion.