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TRUSTED BY MAHNOMEN, MN HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon12
    Verified basement leak repair services reviews

Find Basement leak repair pros in Mahnomen

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
1989 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 Groundworks

Groundworks

4.39(
69
)
Approved Pro

Groundworks

4.39(
69
)
Approved Pro
Customers say: Super punctual
2005 years of experience
Free onsite estimate

Established in 2005, Innovative Basement Authority stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Minnesota & part of North Dakota, we bring our local expertise closer to you. Innovative Basement Authority proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At IBA, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! BC765730 (MN)

"Work crew arrived right on time, Chad and Josh were very friendly, went through the project with me, answered my questions and promptly went to work. They also went through the completed job with me. I am very happy with the results of their work."

Michelle L on November 2024

Established in 2005, Innovative Basement Authority stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Minnesota & part of North Dakota, we bring our local expertise closer to you. Innovative Basement Authority proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At IBA, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! BC765730 (MN)

"Work crew arrived right on time, Chad and Josh were very friendly, went through the project with me, answered my questions and promptly went to work. They also went through the completed job with me. I am very happy with the results of their work."

Michelle L on November 2024


"I wish I could give Innovative Basement Authority a negative rating. Run away from this company as fast as you can. Beware- they are changing their name to Ground Works. Probably because of all the negative reviews. We paid a substantial amount of money to install one of their basement systems after having water problems. The initial sales guy was a very high-pressure seller, trying to get us to sign a contract the same day he came out. Fast forward a year. They told us they needed to come out for an inspection. The sales guy ?found? $40,000 work of additional work that was ?urgent?. He used scare-tactics and tried to convince us we needed to sign on the dotted line immediately. Because of course mold is going to make my family sick. It seemed sketchy to me, but I was able to get the guy to leave without us signing that day. I immediately called our trusted home inspector, and he said the sales guy was trying to sell us things we did not need. He also said he had talked to others"

Meghan _ on October 2025

Groundworks ensures your home in North Dakota stays safe and healthy with expert foundation repair, concrete lifting, and crawl space services. Contact us for a free inspection and estimate!

"I wish I could give Innovative Basement Authority a negative rating. Run away from this company as fast as you can. Beware- they are changing their name to Ground Works. Probably because of all the negative reviews. We paid a substantial amount of money to install one of their basement systems after having water problems. The initial sales guy was a very high-pressure seller, trying to get us to sign a contract the same day he came out. Fast forward a year. They told us they needed to come out for an inspection. The sales guy ?found? $40,000 work of additional work that was ?urgent?. He used scare-tactics and tried to convince us we needed to sign on the dotted line immediately. Because of course mold is going to make my family sick. It seemed sketchy to me, but I was able to get the guy to leave without us signing that day. I immediately called our trusted home inspector, and he said the sales guy was trying to sell us things we did not need. He also said he had talked to others"

Meghan _ on October 2025


Avatar for American Waterworks

American Waterworks

5.00(
7
)
Approved Pro

American Waterworks

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1989 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!

"Great service!"

Nate E on April 2021

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!

"Great service!"

Nate E on April 2021


Avatar for Sentri Homes

Sentri Homes

New on AngiNew on Angi
Approved Pro

Sentri Homes

New on AngiNew on Angi
Approved Pro
2023 years of experience
Free onsite estimate

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.


Avatar for ST CROIX VALLEY CABINETRY

ST CROIX VALLEY CABINETRY

4.62(
21
)

ST CROIX VALLEY CABINETRY

4.62(
21
)
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

St. Croix Valley Cabinetry is a second generation, family owned business. We have a comfortable 2,500 square foot showroom with our production center next door. We specialize in tailored cabinetry. We do not stock anything, everything is custom made per project. Most components are made in house such as drawer boxes, doors, and finishing. Our services include field measurements; computer drawings; and educated, experienced interior designers working along side our skilled craftsmen. We do work for residential clients with home remodels or new construction. We also work with commercial projects.

St. Croix Valley Cabinetry is a second generation, family owned business. We have a comfortable 2,500 square foot showroom with our production center next door. We specialize in tailored cabinetry. We do not stock anything, everything is custom made per project. Most components are made in house such as drawer boxes, doors, and finishing. Our services include field measurements; computer drawings; and educated, experienced interior designers working along side our skilled craftsmen. We do work for residential clients with home remodels or new construction. We also work with commercial projects.



Dan Richter Construction LLC

5.00(
4
)

Dan Richter Construction LLC

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a full service General Contractor building new custom homes and garages, and remodels. We also build to your plans or ours. We will also do small jobs and subcontracting to other contractors for the do-it-yourself homeowner/contractor.

We are a full service General Contractor building new custom homes and garages, and remodels. We also build to your plans or ours. We will also do small jobs and subcontracting to other contractors for the do-it-yourself homeowner/contractor.



Expert Building Services

4.35(
17
)

Expert Building Services

4.35(
17
)
Customers say: Super punctual
1976 years of experience

Expert Building Services provides free estimates for remodeling homes and buildings in the Itasca County area. John Schirber returns calls promptly and sets up house calls at the convenience of our customers. Once we discover the priorities, we collaborate with the owner to complete their wish list. We specialize in handicapped accessible homes. Are you looking for a bathroom or kitchen remodel? Maybe you need a new roof, siding or windows? John and Linda strive to give 110% to every customer. We are eager to meet you on your building site and begin to prepare a proposal for your approval. Additional contact name - Cassidy Hammer. Additional email - [email protected].

"This is the second job, John, Daryll, and company have done for us. I like the way they respect our home and take extra steps to keep the job as clean and neat as possible. They have skills that make them perfect for remodel jobs on older homes as well as newer homes. They provide the best "bang for the buck" if you wish to hire pros. And since I myself do not possess the necessary talents to do such fine work, I'm glad they're nearby."

DANIEL D on August 2020

Expert Building Services provides free estimates for remodeling homes and buildings in the Itasca County area. John Schirber returns calls promptly and sets up house calls at the convenience of our customers. Once we discover the priorities, we collaborate with the owner to complete their wish list. We specialize in handicapped accessible homes. Are you looking for a bathroom or kitchen remodel? Maybe you need a new roof, siding or windows? John and Linda strive to give 110% to every customer. We are eager to meet you on your building site and begin to prepare a proposal for your approval. Additional contact name - Cassidy Hammer. Additional email - [email protected].

"This is the second job, John, Daryll, and company have done for us. I like the way they respect our home and take extra steps to keep the job as clean and neat as possible. They have skills that make them perfect for remodel jobs on older homes as well as newer homes. They provide the best "bang for the buck" if you wish to hire pros. And since I myself do not possess the necessary talents to do such fine work, I'm glad they're nearby."

DANIEL D on August 2020

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Basement Leak Repair questions, answered by experts

Typically, a French drain can last 30 to 40 years if it is maintained properly. The life span of a French drain depends on factors such as the quality of installation and the types of materials used. However, climate and natural disasters can affect the life span of a French drain. Regular maintenance and inspections can help prolong the drain's life span.

To ensure your basement walls are waterproof, it's crucial to address any existing moisture issues before finishing. Inspect for signs of water seepage, such as dampness or discoloration, and repair any leaks or cracks. Install a vapor barrier to prevent moisture from penetrating the walls, and consider waterproofing paints or coatings.

Proper drainage systems, such as interior or exterior waterproofing, can also be beneficial.

Signs include persistent dampness, mold or mildew presence, musty odors, and visible water stains. If any of these occur, it is advisable to contact a professional for an inspection.

Inspect regularly for clogs, clean drain lines, and ensure grading directs water away from the foundation.

The need for permits in drainage improvement projects depends on your location and the extent of the project. Generally, projects involving significant excavation, alterations to existing drainage systems, or those impacting public drainage systems may require permits. Check with your local building department or authorities to determine the specific permit requirements in your area before starting any drainage improvement work to ensure compliance with local regulations.

The Mahnomen, MN homeowners’ guide to basement leak repair services

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