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As a member of the renowned Foundation Supportworks network, Thrasher Foundation Repair provides unparalleled expertise and solutions that are customizable to your unique situation. Our expert structural engineers will come to your home to examine the problem and provide you with a free, written estimate. Contact us today to schedule your free estimate!

Common Crawl Space Problems in South Sioux City

A musty, wet crawl space can affect other areas of your home. Moisture and humidity in your crawl space can cause the wood to rot. Rotting wood can create catastrophic structural damage to your home. The best way to treat wood rot is to prevent it. At Thrasher Foundation Repair, we install dehumidifiers and seal off your crawl space from excess moisture or humidity. Your crawl space will be a clean and dry place for storage. Contact us today to schedule your free estimate!

Expert Crawl Space Solutions in South Sioux City

Ensuring your crawl space is a healthy and bone-dry space is our top priotity at Thrasher Foundation Repair. We offer solutions to solve your problem and to prevent it from ever happening again. Our solutions are state-of-the-art and durable enough to last.

Vapor barriers

Vapor barriers stops the evaporating ground moisture from entering your crawl space. It also prevents the passage of air, which turns your crawl space into a semi-conditioned space. This semi-conditioned space means your crawl space will be close in temperature to the rest of your home and actually warm the floors. Your energy bills will also decrease.

Crawl space encapsulation

Encapsulating your crawl space seals it off from the harsh outside elements. It will save your money on utility bills and create a healthy space for your home. Our crawl space technicians use a heavy-duty vapor barrier to make sure your space remains clean and dry.

Structural support

Our SmartJack system is designed to support your crawl space alongside an existing column. This durable system lifts up sagging joists and beams. Since our SmartJack system was created by Foundation Supportworks, we are confident it is the best solution for your sagging floors.


Good air quality actually increases the value of your home. Ensuring you have a reliable dehumidification system is essential to regulating good air quality. At Thrasher Foundation Repair, we offer an energy-efficient crawl space dehumidification system to prevent mold, dust mites, insects and other pests.

Get a Free Estimate

Thrasher Foundation Repair has been your leading crawl space repair company for your South Sioux City home. For over 45 years, we have been providing a satisfaction guarantee, an efficiency guarantee and a property protection guarantee. Our trusted techniques and skilled specialists will leave you with a dry basement for years to come. Contact us today to schedule your free estimate!

Recent job requests in South Sioux City

Neighborhood: Wedgewood Dr, South Sioux City, 68776

I believe water is coming in from cracked driveway and also some hairline cracks on the foundation wall

Neighborhood: Le Mesa Way, South Sioux City, 68776

Cracked and sinking driveway

Neighborhood: South Sioux City, 68776

Service: Bowing Walls

Neighborhood: South Sioux City, 68776

Garage foundation is sinking and needs repaired

Neighborhood: B ST, South Sioux City, 68776

Basement wall leaks water from outside in one corner of basement

Neighborhood: South Sioux City, 68776

Bought house 4 months and previous owners didnt disclose cracks in the seem of basement wall and floor Need someone to give a look on cost the repair

Neighborhood: Fair Meadow Ln, South Sioux City, 68776

I have a vast amount of water leaking from my basement floor & wall into my lower level... To the point where it was squirting out the wall, through the seams of the bricks in the wall like a water fountain. Severity of issue: Extreme! Need to get someone over to assess & attempt to fix this issue before the basement wall collapses & we have even further problems... Please & thank you

Neighborhood: South Sioux City, 68776

Service: Water in my basement

Neighborhood: Oak Street, South Sioux City, 68776

Neighborhood: F St, South Sioux City, 68776