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Verified Reviews for Basement Waterproofing pros in Decorah, IA

*The Angi rating for Basement Waterproofing companies in Decorah, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Decorah, IA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on May 20, 2026

Find Basement waterproofing pros in Decorah

Avatar for American Waterworks
American Waterworks
4.5(
171
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Decorah, IA and surrounding areas

Approved

In business since 1989

Free estimates

Warranties offered

"Everything went well and the basement has no more water intrusion."
Another Sinking Floor
Dirt Crawlspace in Elk Mound, WI
Concrete stoop had sunk over 6 inches
Foundation Failure Signs
Increased Efficiency of Crawlspace in Elk Mound

+156

Response time4 hrs
613 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for All-Star Basements
All-Star Basements
4.3(
29
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Decorah, IA and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"Very friendly, very knowledgeable, and great price. I would recommend All-Star Basements to anyone in Rochester. They know there stuff and get the job done in a timely fashion at a great price."
Drain Main System
Response time1 day
Recommended by90%of homeowners
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Avatar for ANCHORED WALLS
ANCHORED WALLS
4.7(
19
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Decorah, IA and surrounding areas

In business since 1978

Credit card accepted

"Anchored Walls made it easy to get the work completed. Estimate was done quickly and professionally. I spoke with 2 other companies who were impossible to chase down for estimates. Anchored Walls always answered their phones and made the entire process stress free. Would recommend and use again, need be.
"
Additional Photos
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+2

Recommended by87%of homeowners
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Dave Navarro Construction
5.0(
2
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Decorah, IA and surrounding areas

In business since 2010

Free estimates

We are a General contracting company. We perform all services involved in the completion of unfinished space. We do hire sub contractors when needed. We also stand by their work as well. Though we have only been in buisness for a short time. we have a combined 37 years construction experience.

Recommended by100%of homeowners
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Avatar for Midwest Basements, LLC
Midwest Basements, LLC
4.0(
4
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Decorah, IA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

Midwest Basements LLC should be your first choice when it comes to any of your foundation needs. We take the same pride in our work as you do in your own home. Please call and ask about our in house financing and our emergency response service. Thank You!

Crawl Space
Ramp & Door
Digging out
Recommended by100%of homeowners
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Avatar for Hampton Enterprise LLC
Hampton Enterprise LLC
3.7(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Decorah, IA and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"They were good. They were pretty fast and came on time. My overall experience with them has been good."
Additional Photos
Additional Photos
Recommended by60%of homeowners
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Basement Waterproofing questions, answered by experts

Plan on cleaning your crawl space at least once a year, though twice a year is ideal. During the cleaning, remove any debris or dust and check for potential issues like pest infestations or water damage. The sooner you catch these issues, the easier (and cheaper) it will be to fix them.

The best type of basement ventilation system depends on your budget, the moisture in your basement’s air, and the types of windows you have down there. You should consider all of these factors when choosing a ventilation system. However, the most effective method for basement ventilation is an energy recovery ventilator (ERV) or a whole-house ventilation system, which preheats or precools incoming air from the outside while also managing water vapor.

Preventative measures, such as maintaining drainage systems, installing sump pumps, inspecting roofs regularly, and crafting comprehensive emergency plans, can help mitigate future risks.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. The chances of mold developing depend on several factors, including the severity of the damage and how quickly the area is cleaned and dried. To prevent mold, you must act quickly—ideally within the first 24 hours. Clean up all water and thoroughly dry the affected area. If the damage is extensive, you were unable to address it immediately, or you suspect mold has already started to grow, it is best to assume it is present and hire a professional mold inspector or removal expert to assess the situation.

Crawl space foundation problems can stem from a few different issues, but the most common are moisture and water problems and soil instability. Moisture and water issues are often a result of poor drainage, which can lead to water intrusion and soil expansion and contraction, leaving your foundation under added stress. A few things can cause soil instability, including poor drainage, karst landscapes and resulting sinkholes, and poorly compacted soil during construction.

The Decorah, IA homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.

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