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

Spencer IA's Established Specialist

Selected Thrasher because of the annual State of Iowa promotion to measure radon....
Happy Customers Surrounding Spencer, IA
Testimonials
Reviews
Work requests

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Reviews From Spencer
Testimonials From Spencer
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
Thrasher Basement Systems were recommended to me by my contractor who found the moisture problem in my basement when some flooring was removed. He had a family...
Testimonial by Roxy M. from Spencer, IA

Foundation Repair & Basement Waterproofing

For the past 40 years we have been providing quality work to homeowners in Spencer. 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 Spencer 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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News & Events From Spencer
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 Spencer, IA
14th Ave W in Spencer
New construction and would like a radon test.
12th Avenue SE in Spencer
Getting cracks in wall in a basement room. One is leaking in from rains. Additional information: How did you hear about us?: Other
5th ST SW in Spencer
I recently completed a short term radon test with results showing a 5.6 level. Would like to know how to proceed from here and what it will cost.
210th Ave in Spencer
Have water coming up through the concrete getting the basement floor wet. Have 3 sump pumps but the area the house is in, when there is a lot of rain, the ground stays really wet. Wondering if a waterproofing system would work in the basement and would like to get a estimate. Additional information: How did you hear about us?: Other
West 2nd St in Spencer
Basement wall busted open.