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Products & Services
Basement Waterproofing & Repair Products
WaterGuard Water Control
DryTrak Drainage Channel
TrenchDrain Drain Grate
IceGuard Discharge Line
FlexiSpan Wall Crack Repair
WellDuct Window Drainage
ThermalDry Wall Barrier
SuperSump Pump System
TripleSafe Pumping System
UltraSump Battery Back Up
SaniDry Sedona Dehumidifier
Rockwell Basement Egress Windows
EverLast Wall Panels
Crawl Space Encapsulation & Repair Products
CleanSpace Crawl Space Encapsulation
Turtle Access Hatch
EverLast Crawlspace Doors
SaniDry Sedona Dehumidifier
SmartDrain Water Drainage
SilverGlo Wall Insulation
TerraBlock Floor Insulation
SmartSump Sump Pump
Crawl-O-Sphere Fan
SmartVent Flood Vents
Foundation Repair Products & Services
Geo-lock Wall Anchors
Geo-lock Helical Anchors
PowerBrace Wall Repair
CarbonArmor Wall Repair
SmartJack Floor Supports
PolyLevel Concrete Lifting & Leveling
Mudjacking & Slab Jacking Alternatives
Concrete Sidewalk Leveling
Concrete Driveway Leveling
Pool Deck Repair
EZPost Deck Repair
ShotCrete Wall Restoration
Driveway Damage Repair
Radon Mitigation & Indoor Air Quality Products & Services
Radon Inspections
Radon Gas Mitigation Systems
Indoor Air Cleaners
Vapor Intrusion Mitigation
Dehumidifier Systems
Before and After Pictures from Sergeant Bluff
Crawl Space Encapsulation in Sioux City, IA

Crawl Space Encapsulation in Sioux City, IA

Before After
Crawl Space Encapsulation in Sioux City, IA Crawl Space Encapsulation in Sioux City, IA

This small, tight crawl space area in Sioux City, IA was prone to moisture, which leads to mold and musty smells. For this project, we used CleanSpace® Crawl Space Vapor Barrier during the encapsulation process to transform the crawl space into a dry, clean, energy-efficient part of the house.

Company Awards
Thrasher has earned the home service industry’s coveted Angie’s List Super Service Award, reflecting an exemplary year of customer service... [Read more]
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Sergeant Bluff, IA's Certified Foundation Repair & Concrete Leveling Company

Last week Thrasher Basement arrived at our home in Sergeant Bluff, Iowa and started the huge project on our house. ...
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Reviews From Sergeant Bluff
Testimonials From Sergeant Bluff
I just wanted to contact you to compliment your representative, Charles Kneifl. He has been very professional, ethical and helpful in being sure we understood...
Testimonial by Craig S. from Sergeant Bluff, IA

Are you looking for help with foundation repair, concrete leveling, radon mitigation, basement waterproofing, or crawl space encapsulation in Sergeant Bluff? Thrasher is Iowa’s largest and most trusted home repair company. We specialize in repairing foundations, concrete, wet basements, and damp crawl spaces. Our motto is “There's only one right way” and we stand behind that with our highly-experienced inspectors and crews, proven products, transferable warranties and interest-free financing. You can trust that you’re getting the best solution for your home or business, no matter what the problem.

Learn about the services we provide in Sergeant Bluff and the surrounding area, or contact us today to schedule your free inspection and estimate!

Proven Residential & Commercial Foundation Repair Solutions in Sergeant Bluff, IA

Thrasher is trained and skilled in the latest foundation repair techniques. We can effectively repair any settlement-related problem, from foundation cracks, bowing basement walls, uneven floors, settlement sinking - you name it, we can fix it. Using patented products from Foundation Supportworks, we offer a fast, cost-effective, proven solution to your foundation and structural repair needs in Sergeant Bluff, IA.

We offer a wide range of foundation, structural and concrete repair solutions, such as:

  • Helical/push pier systems
  • Wall anchors
  • Shotcrete
  • Crawl space jacks
  • Polyurethane concrete slab leveling

Most foundation repair jobs take less than a week to complete and our services include a detailed written estimate and many of our products include a written warranty. Call us today to request a free foundation inspection Sergeant Bluff or the surrounding area.

Your Responsible Basement Waterproofing & Egress Window Contractor

If you have a damp, leaky basement or issues with basement flooding, Thrasher is your expert for a proven, cost-effective basement waterproofing solution. No matter what’s causing your wet basement problem, we can fix it! We’ll inspect your home inside and out and design and install a waterproofing system to meet your needs.

Having a wet or leaky basement is not only an inconvenience, but the moisture, dampness and mold caused by the water can lead to health problems and added repair expenses. That’s why we offer a full range of basement repairs and waterproofing solutions designed to tackle the problem:

  • Basement sump pumps
  • Interior perimeter drainage systems
  • Wall and floor crack repair
  • Basement dehumidifiers
  • Radiant & vapor barriers
  • Insulated basement wall panels

Our patented WaterGuard drainage system doesn’t require excavation, can typically be installed in just two days and includes a transferable lifetime warranty! We also install and replace basement egress windows and window wells. Our RockWell™ egress window products help provide for a safer and more beautiful home while helping to keep your basement dry. Contact us to learn more and get a free basement inspection or egress window estimate.

PolyLevel Concrete Lifting & Leveling Services in Sergeant Bluff

Is your sidewalk or driveway sinking and uneven? How about your patio or front porch steps? Uneven concrete not only looks bad, but it can also be a dangerous tripping hazard. Concrete leveling is faster, less disruptive and more cost-effective than tearing out and replacing the concrete.

Thrasher uses a process called PolyLevel to permanently lift and stabilize sinking concrete slabs with a high-density polyurethane formula. PolyLevel concrete repair offers many advantages:

  • Lightweight - Won’t add weight to existing soil
  • Waterproof - Won’t wash out
  • High-capacity - Lifts heavy loads
  • Minimal disruption to your slab and property
  • Environmentally friendly
  • Great for leveling sidewalks, driveways, pool decks

If you have a slab foundation or concrete outside your home that you need re-leveled, Thrasher is your expert contractor. Call today to schedule your free, no-obligation inspection and estimate!

Trusted Crawl Space Encapsulation & Repair

Do you have a damp, nasty crawl space below your home? How about musty odors inside your home or cold floors over your crawl space? Thrasher solves these problems with our state-of-the-art CleanSpace crawl space encapsulation system.

We install the moisture barrier on the crawl space floor to eliminate excess moisture and musty smells. Crawl space insulation is added to the walls for added comfort and energy efficiency. What you get is a dry, usable crawl space and improved comfort and healthier air inside your home.

We offer a full range of crawl space repair & encapsulation solutions in Sergeant Bluff, including:

  • Crawl space dehumidifiers
  • Crawl space sump pumps
  • Vapor barriers
  • Access doors and access wells
  • Crawl space structural supports

Radon Mitigation & Indoor Air Quality Systems in Sergeant Bluff

If you think you might have radon gas seeping into your home, it's time to take action. We help homeowners in Sergeant Bluff, IA with radon testing, and can even provide a FREE quote for the cost of a radon mitigation system for your home. Our radon gas mitigation systems are from the trusted National Radon Defense network and are scientifically proven for radon abatement.

We also provide indoor air quality systems and services for your home or business including the installation of indoor air cleaners and dehumidifiers. We also offer vapor intrusion mitigation to remove other hazardous vapors from your soil beyond radon gas.

Our inspectors have a minimum of 10 years of industry experience and their focus is to understand the cause of your specific problem and recommend the best solution for your home. Contact us today to schedule a free inspection of your foundation, basement, crawl space, or radon levels in Sergeant Bluff or the surrounding area.

Job Stories From Sergeant Bluff, IA
The SuperSump Saves The Day

Tom of Sergeant Bluff, IA wanted a better way to have his sump pump direct water out of his house. As well, he needed a new sump pump to do the job better than his old one. He chose Thrasher to help him solve his problem.

Thrasher came in and installed a SuperSump sump pump to replace the old one that had previously not been a good job pumping water efficiently out of the house. WaterGuard draining panels and IceGuards were installed to guide the water out of the house and away from its foundations. After some repairs to the yard that had been damaged by the previous poor draining system, the project was done.

They complete the project in one day and now Tom does not have to worry about his sump pump draining out of his house properly. 

Geo-Lock Stabilizes Leaning Walls

Richard of Sergeant Bluff, IA noticed that his basement walls seemed to be tilted and leaning in. He knew that this could cause further problems if he left this problem unaddressed. So, he began to search for a contractor that could help him solve his problem and he found Thrasher.

His leaning walls needed some help to stay upright and straight, so they installed Geo-Lock wall anchors and covers. The Geo-Lock technology allows for the wall to be straightened effectively over time so that it will not become susceptible to leaning or bowing again. As well, they removed the old drywall that was there.

The project only took one day to complete in its entirety. Richard’s walls will keep his house stable for years to come. 

Water Damaged Basement Floor Gets Drained

Donna of Sergeant Bluff, IA was worried about some wet areas in her basement that she suspected were caused by water leaking from her walls. Eager to get the problem resolved professionally, she began searching for contractors. She eventually choose Thrasher.

Thrasher installed a TrenchDrain system in her basement to help keep the area free from water in the future and to drain the water efficiently and effectively. Later, they had Thrasher come back to service their TrenchDrains and to install a SaniDry XP. The SaniDry system works to dry areas affected by water damage and to keep the area free from unwanted moisture.

The project only took one day to install and then a few days later, they came back to service the products installed. Donna can sleep well knowing that doesn’t have to worry about her basement having water damage. 

Shaky Foundations Are Restored in Sergeant Bluff

Mark of Sergeant Bluff, IA noticed that one of their exterior walls was leaning and was at risk for causing permanent damage to the house and the foundations. He knew that he needed to have the problem fixed quickly, so he called Thrasher who gave him a list of options on how to proceed.

He needed to get his walls straightened again, and so Thrasher installed Geo-Lock wall anchors in his walls. The Geo-Lock wall anchors will ensure that the walls still correct themselves from leaning over time. As well, a 6’ extension rod was installed to help the Geo-Lock anchors in straightening the walls.

The project only took one day to complete start to finish. Mark can be satisfied that his walls are on their way to being as straight as ever.  

House At Risk For The Damaging Effects Of Radon

Aaron and Tami of Sergeant Bluff, IA were worried when their house tested for radon level 7. They knew that they needed to get the problem fixed and fast. They looked for a professional to help them find a solution and they found Thrasher.

Thrasher came in and installed a basic radon mitigation system with a 10 year warranty. As well, they had a soffit penetration installed, meaning that they used the soffit of the roofs to attach the outlet for the mitigation system. Finally, they also had a PlexiGlass sump pump cover installed so that they wouldn’t have to worry about it becoming damaged in harsh weather.

The products only took one day to install and now Aaron and Tami do not need to be concerned about their health in their own home.