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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 January 05, 2026

Find Basement waterproofing pros in Decorah

Avatar for American Waterworks

American Waterworks

4.78(
132
)
•Approved Pro

American Waterworks

4.78(
132
)
•Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
37 years of experience

When it comes to water in your basement or a faulty foundation, you need an expert to ensure the damage is reversed and prevented from occurring in the future. American Waterworks has several decades of experience in the basement waterproofing and foundation repair industries, and we know the best tools and techniques to see your home through its troubles. Our professional installers are experienced in solving the wide variety of problems that allow water into basements and other areas below ground level. We've helped property owners with thousands of repairs and other restorations to homes in Minnesota, North Dakota, northeastern Iowa and western Wisconsin. American Waterworks is ready to serve all of your basement, crawl space, foundation, concrete leveling and radon mitigation needs. Call us today for a free estimate!

"This job was completed efficiently and professionally. A design specialist came to test and measure every detail for the project. The crew arrived with everything needed for the job. They worked very hard to install Waterguard in the concrete floors inside around the foundation to the sump pump basket. They also installed Geo-lock anchors to support a block wall that was bowed. This company has 36 years in business and provides excellent results and professional customer relations. Call Amer. Wtrwrks for a free estimate. You will not be disappointed. A wise investment of $11,270."

Donna A on September 2025

When it comes to water in your basement or a faulty foundation, you need an expert to ensure the damage is reversed and prevented from occurring in the future. American Waterworks has several decades of experience in the basement waterproofing and foundation repair industries, and we know the best tools and techniques to see your home through its troubles. Our professional installers are experienced in solving the wide variety of problems that allow water into basements and other areas below ground level. We've helped property owners with thousands of repairs and other restorations to homes in Minnesota, North Dakota, northeastern Iowa and western Wisconsin. American Waterworks is ready to serve all of your basement, crawl space, foundation, concrete leveling and radon mitigation needs. Call us today for a free estimate!

"This job was completed efficiently and professionally. A design specialist came to test and measure every detail for the project. The crew arrived with everything needed for the job. They worked very hard to install Waterguard in the concrete floors inside around the foundation to the sump pump basket. They also installed Geo-lock anchors to support a block wall that was bowed. This company has 36 years in business and provides excellent results and professional customer relations. Call Amer. Wtrwrks for a free estimate. You will not be disappointed. A wise investment of $11,270."

Donna A on September 2025

Avatar for All-Star Basements

All-Star Basements

4.67(
21
)
•Approved Pro

All-Star Basements

4.67(
21
)
•Approved Pro
Customers say: Terrific value
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
15 years of experience

All-Star Basements is based out of Rochester, Minnesota and covers Southern Minnesota including the Twin Cities area, Western Wisconsin and parts of Northeast Iowa. Our team is committed to solving our customers’ waterproofing, foundation repair, or crawl space needs and offering multiple solutions to choose from. As a proud member of the National Waterproof Members of America, we have the best products available to solve your leaky basement, seepage, or flooding issues. Our lineup also includes multiple crawl space solutions. If you have foundation problems that need any kind of repair, we can help! We feature the nationally renowned Grip-Tite Foundation Systems, which has a long history of fixing homeowners’ foundation repair issues. At All-Star Basements, we are committed to providing multiple solutions to choose from to help fix any basement problem you may have. We take great pride in caring for all of our customers’ needs, big or small - we do it all!

"Great costumer service! They were honest when giving us a consultation."

Allison J on December 2020

All-Star Basements is based out of Rochester, Minnesota and covers Southern Minnesota including the Twin Cities area, Western Wisconsin and parts of Northeast Iowa. Our team is committed to solving our customers’ waterproofing, foundation repair, or crawl space needs and offering multiple solutions to choose from. As a proud member of the National Waterproof Members of America, we have the best products available to solve your leaky basement, seepage, or flooding issues. Our lineup also includes multiple crawl space solutions. If you have foundation problems that need any kind of repair, we can help! We feature the nationally renowned Grip-Tite Foundation Systems, which has a long history of fixing homeowners’ foundation repair issues. At All-Star Basements, we are committed to providing multiple solutions to choose from to help fix any basement problem you may have. We take great pride in caring for all of our customers’ needs, big or small - we do it all!

"Great costumer service! They were honest when giving us a consultation."

Allison J on December 2020

Avatar for AccuLevel, Inc. - Iowa

AccuLevel, Inc. - Iowa

4.55(
154
)
•Approved Pro

AccuLevel, Inc. - Iowa

4.55(
154
)
•Approved Pro
Customers say: Quality work
30 years of experience
Free onsite estimate

Acculevel is your foundation repair expert, serving Indiana, Illinois, Michigan, Kentucky, and Ohio with over 20 years of experience. Our repairs come with a lifetime warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- the most valuable investment you'll ever make.

"I had a great experience with him. They are busy so takes a few weeks for work to be done."

Doug C on July 2023

Acculevel is your foundation repair expert, serving Indiana, Illinois, Michigan, Kentucky, and Ohio with over 20 years of experience. Our repairs come with a lifetime warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- the most valuable investment you'll ever make.

"I had a great experience with him. They are busy so takes a few weeks for work to be done."

Doug C on July 2023

Avatar for Acculevel Inc

Acculevel Inc

4.66(
181
)

Acculevel Inc

4.66(
181
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Acculevel is your foundation repair expert, serving Indiana, Illinois, Kentucky, and Ohio and been in business since 1996. Most of our repairs come with a life of the structure warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- possibly the most valuable investment you'll ever make. A dry home is a healthy home. Acculevel is committed to providing the most technologically advanced repairs to help keep your home dry and on a safe foundation. A strong foundation protects your home's structure, lowers utility bills and maintains the value of your property. Check our pictures for the signs & symptoms of foundation & water damage, and then call Acculevel for your free visual inspection. 1-866-669-3349

"STAY AWAY FROM THIS COMPANY. They took my 1st half deposit and then vanished. I have called multiple times. Spoke with someone once and they promised a call back. Never did. Emailed and no response. This was over 4 months ago. Nothing. They stole my money. Sales guy was John Mullikin. Here's their class-act response by chat. The best response I've had yet. "Conversation closed by Erika"."

Jeff N on September 2025

Acculevel is your foundation repair expert, serving Indiana, Illinois, Kentucky, and Ohio and been in business since 1996. Most of our repairs come with a life of the structure warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- possibly the most valuable investment you'll ever make. A dry home is a healthy home. Acculevel is committed to providing the most technologically advanced repairs to help keep your home dry and on a safe foundation. A strong foundation protects your home's structure, lowers utility bills and maintains the value of your property. Check our pictures for the signs & symptoms of foundation & water damage, and then call Acculevel for your free visual inspection. 1-866-669-3349

"STAY AWAY FROM THIS COMPANY. They took my 1st half deposit and then vanished. I have called multiple times. Spoke with someone once and they promised a call back. Never did. Emailed and no response. This was over 4 months ago. Nothing. They stole my money. Sales guy was John Mullikin. Here's their class-act response by chat. The best response I've had yet. "Conversation closed by Erika"."

Jeff N on September 2025

Avatar for Affordable Drainage Systems Inc

Affordable Drainage Systems Inc

4.65(
17
)

Affordable Drainage Systems Inc

4.65(
17
)
Customers say: Terrific value
25 years of experience

NO SUBS. COST IS DETERMINED BY THE JOB. NO TRAVEL CHARGES. ADDITIONAL SERVICE AREAS: ISANTI, MCLEOD, MILLE LACS, SHERBURNE & STEARNS COUNTIES.

NO SUBS. COST IS DETERMINED BY THE JOB. NO TRAVEL CHARGES. ADDITIONAL SERVICE AREAS: ISANTI, MCLEOD, MILLE LACS, SHERBURNE & STEARNS COUNTIES.

Avatar for Kinzler Construction Services

Kinzler Construction Services

5.00(
10
)

Kinzler Construction Services

5.00(
10
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

With 30 years of experience, Kinzler Construction Services is the right contractor for the job. Call us today for a free estimate.

With 30 years of experience, Kinzler Construction Services is the right contractor for the job. Call us today for a free estimate.

Avatar for American Waterworks

American Waterworks

4.57(
37
)

American Waterworks

4.57(
37
)
Customers say: Super punctual
37 years of experience

When it comes to water in your basement or a faulty foundation, you need an expert to ensure the damage is reversed and prevented from occurring in the future. American Waterworks has several decades of experience in the basement waterproofing and foundation repair industries, and we know the best tools and techniques to see your home through its troubles. Our professional installers are experienced in solving the wide variety of problems that allow water into basements and other areas below ground level. We've helped property owners with thousands of repairs and other restorations to homes in Minnesota, North Dakota, northeastern Iowa and western Wisconsin. American Waterworks is ready to serve all of your basement, crawl space, foundation, concrete leveling and radon mitigation needs. Call us today for a free estimate!

"They were very good at selling the solution, but there was a big gap on the execution of the project, and took multiple iterations to get everything right, I even had to get into the solutioning with the team myself. It is too bad because the technology seems to work fairly well, and that’s why they are getting 3 stars, but I would not use them again."

Darwin P on August 2024

When it comes to water in your basement or a faulty foundation, you need an expert to ensure the damage is reversed and prevented from occurring in the future. American Waterworks has several decades of experience in the basement waterproofing and foundation repair industries, and we know the best tools and techniques to see your home through its troubles. Our professional installers are experienced in solving the wide variety of problems that allow water into basements and other areas below ground level. We've helped property owners with thousands of repairs and other restorations to homes in Minnesota, North Dakota, northeastern Iowa and western Wisconsin. American Waterworks is ready to serve all of your basement, crawl space, foundation, concrete leveling and radon mitigation needs. Call us today for a free estimate!

"They were very good at selling the solution, but there was a big gap on the execution of the project, and took multiple iterations to get everything right, I even had to get into the solutioning with the team myself. It is too bad because the technology seems to work fairly well, and that’s why they are getting 3 stars, but I would not use them again."

Darwin P on August 2024

Avatar for Behncke Construction Inc.

Behncke Construction Inc.

4.63(
16
)

Behncke Construction Inc.

4.63(
16
)
Customers say: Terrific value
78 years of experience

Behncke construction has been serving the Quad Cities for over 60 years.

"BEHNCKE REVIEW- Recently, Behncke Constructed built an egress window for our home. From the initial scheduling through the conclusion of the project everything was precise and the craftsmanship was perfect. We would highly recommend Behncke for your every need."

Scott S on December 2025

Behncke construction has been serving the Quad Cities for over 60 years.

"BEHNCKE REVIEW- Recently, Behncke Constructed built an egress window for our home. From the initial scheduling through the conclusion of the project everything was precise and the craftsmanship was perfect. We would highly recommend Behncke for your every need."

Scott S on December 2025

Avatar for Bix Basement Systems

Bix Basement Systems

4.02(
42
)

Bix Basement Systems

4.02(
42
)
Customers say: Quality work
66 years of experience

Bix Services is a full service basement, foundation and crawl space repair company with access to more than 28 patented products by Basement Systems, Inc. and Foundation Supportworks, Inc.

Bix Services is a full service basement, foundation and crawl space repair company with access to more than 28 patented products by Basement Systems, Inc. and Foundation Supportworks, Inc.

Avatar for Dorian Visionheart Dyer

Dorian Visionheart Dyer

4.80(
5
)

Dorian Visionheart Dyer

4.80(
5
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

I am a self-taught artist, initially drawn to experiment with pastels and colored pencil, and now working with acrylic on canvas. My art speaks for itself.

I am a self-taught artist, initially drawn to experiment with pastels and colored pencil, and now working with acrylic on canvas. My art speaks for itself.

Showing 1-10 of 19
Basement Waterproofing questions, answered by experts

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

If your basement often leaks after heavy rain, it’s probably caused by hydrostatic pressure. When the ground is saturated with water, it can put pressure on the exterior of your home’s foundation, causing cracks in the basement wall and pushing water through any existing weak spots. Over time, hydrostatic pressure can cause structural damage to your home.

The most flood-resistant materials you can count on in a flood scenario are concrete, closed-cell insulation, foam insulation (also known as expandable foam), pressure-treated wood, marine-grade plywood, and ceramic tile. When a material is flood-resistant, it can withstand direct contact with floodwater for at least 72 hours without being significantly damaged.

Yes, you can over dehumidify your house. While you may prefer a dryer climate inside, the elimination of too much moisture in the air can lead to an extremely dry environment that can affect those with respiratory and skin issues. Strike a balance between eliminating excess moisture without making your home feel like a desert. Most modern thermostats show the humidity levels for guidance.

Yes, you can technically make a crawl space liveable, but the only way to do so is by converting it into a basement. While some crawl spaces are big enough to walk through and store large items, they lack appropriate insulation and space to be liveable.

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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