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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
640 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

Yes, cleaning a crawl space is worth the cost. Although it's an out-of-sight area, neglecting it can lead to significant problems like pest infestations (including termites and carpenter ants), mold, and fungal growth, which can cause structural damage. Regular cleaning helps prevent these issues. While hiring a contractor has ongoing costs, the price for cleaning—typically between $0.50 and $4 per square foot—is much lower than the cost to remediate a pest or mold problem. Additionally, a clean crawl space can lead to improved indoor air quality and more comfortable temperatures in your home.

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.  

Proper basement ventilation is very effective at reducing humidity. Without enough ventilation, your basement is prone to mold and moisture damage. Your basement should have as much natural ventilation via windows and doors as possible, and if your budget allows, you should also consider installing an ERV system to keep basement humidity levels at bay.

Preventing future basement flooding often involves installing sump pumps, improving drainage, sealing foundation cracks, and maintaining gutters. Costs vary, but preventive measures can range from a few hundred to several thousand dollars, depending on the solutions chosen. Investing in prevention can save you money on future flooded basement cleanup costs and repairs.

A walkout basement is considered to be partially below grade because at least one wall is entirely exposed. In some cases and in specific municipalities, inspectors and appraisers will still count walkout basements as below grade, which means the space can’t serve as living space or be rented out. If you intend on using the area as living space or a separate apartment, you should check with your local building department to make sure it’s legal to do so.

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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