The best foundation, basement, and concrete repair services in Sioux City

Award-winning home repair

Protect your Sioux City home with Thrasher

In 1975, Thrasher Foundation Repair was founded with a clear purpose: to redefine our industry and provide the best foundation, concrete, basement, and crawl space repairs to Midwest homeowners. Originally based in Omaha, we extended our services to Sioux City in 2019, aiming to help even more homeowners in need.

We aren't just in the business of repairs; we're here to protect your home, your family, and your peace of mind. We understand the stress that comes with major home repairs, which is why we approach our services with both empathy and expertise. The bottom line? We're here to connect, to understand, and to provide solutions that matter.

From addressing foundation issues to dealing with basement leaks, Thrasher Foundation Repair is your dependable contractor in Sioux City. Our dedication to delivering exceptional service and proven solutions makes us your trusted source for all your home repair needs in Sioux City.

How can we help you?

Foundation repair

Ensure the stability and strength of your home's foundation with foundation repair. Our expert team is here to assess and address any foundation issues you may have.

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Concrete repair

Lift, level, and protect your cracked or uneven concrete. We offer professional poly leveling, caulking, and sealing services.

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Basement waterproofing

Get rid of water in the basement with basement waterproofing. Our expert team will identify the water source and offer professional solutions to keep your basement dry.

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Gutter solutions

Protect your home from water damage with our gutter solutions. We offer a seamless all-in-one gutter system and professional gutter guard installation.

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Crawl space repair

Prevent structural damage, mold, and humidity problems with our crawl space repair services. Our repair solutions include crawl space encapsulation and structural support.

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Get a Free Estimate

Give us a call at 1-800-827-0702 or complete this form and we'll contact you shortly to schedule a Free Inspection, and you'll get a no-obligation written quote during our initial visit.

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Why choose Thrasher?

Because we're experts. We've been there and done it. For nearly 50 years. We answer every question you have, quickly identify the root of the problem, and give you the solution, all in the same day.

Because we're easy to work with. Unlike other contractors, we make a stressful home repair super easy. We call you before we arrive, show up on time, clean up thoroughly, and walk through the job with you at the end to make sure you're 100% satisfied.

Because we're transparent. We're set out to break the contractor stereotype. Educating homeowners is the goal. Being shady and overselling is not.

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Before and after pictures from Sioux City

Driveway Protection in Sioux City, IA This homeowner had many cracks in his concrete and was worried that his driveway would cave while driving on it....

Replacing old gutter covers in Sioux City, IA. This customer was told that the old gutter covers she had would not clog but they still did. She was...

Gutter Guard Installation in Sioux City, IA This homeowner was concerned that their gutters weren't getting the best protection possible so they wanted to try something new. ...

Waterproofing Basement in Sioux City, IA The customer was experiencing waterproofing problems in the basement of this house. Water would get into the basement when there...

Pool Deck Leveled in Sioux City, IA Adam is a homeowner in Sioux City, IA, and he had a growing concern about the amount of water collecting...

Crawl Space Encapsulation in Sioux City, IA Linda and Louie E. are homeowners in Sioux City, IA and have felt the negative effects of a poor crawl...

Basement in Sioux City, IA Waterproofed Marcy A. is looking to remodel the basement but has been dealing with water coming in throughout the last couple...

Two Part Concrete System Levels Driveway in Sioux City, IA Homeowner Tonya H. had plans to replace her concrete after major settlement and cracking had happened. She was concerned about...

Settling Foundation in Sioux City, IA Saved with Push Piers Evan G.’s home was settling, and he was having trouble with doors shutting properly and cracking in the drywall. Looking...

See all Before & After

The customer was remodeling this home to sell to some people he knows. He wanted to make sure the basement would stay dry and that the water issues he experienced with the home doesn't cause future problems for them. Water would get into the basement when we got heavy rain. He would have to push the water over to the drain to get it out of the basement.

We used our WaterGaurd system all the way around the basement to ensure the whole thing would stay dry all the time. We put in full height clean space to limit the amount of water vapor getting into the home. We also used our triple safe pump to make sure they won't have to deal with the stress of a sump system failure.

He enjoyed that our system would guarantee the basement space to be dry. He knows the quality work we put into homes and know we will make sure the new homeowners will have no problems. The new homeowners and he also liked that the 25-year warranty would transfer over to them.

We were able to meet with the current and future homeowners and they worked so well together to design a system that would fully take care of their needs. They were so happy that we can make sure the basement always stays dry and it won't be a problem for them. The future homeowner was worried the moisture would cause health concerns for their family.