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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 Cornerstone Remodeling, LLC

Cornerstone Remodeling, LLC

4.97(
34
)
Approved Pro

Cornerstone Remodeling, LLC

4.97(
34
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
2017 years of experience

Cornerstone Remodeling LLC is in existence to provide exceptional service to every client. We use our years of experience and expertise to complete your project with perfection. Integrity is the cornerstone on which we build our foundation of service and quality. Please call us today for an estimate. We look forward to working with you.

"Eric was great to work with. Communication was great! Super happy with completed work"

Laura D on October 2024

Cornerstone Remodeling LLC is in existence to provide exceptional service to every client. We use our years of experience and expertise to complete your project with perfection. Integrity is the cornerstone on which we build our foundation of service and quality. Please call us today for an estimate. We look forward to working with you.

"Eric was great to work with. Communication was great! Super happy with completed work"

Laura D on October 2024


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 I Have a Guy LLC

I Have a Guy LLC

4.92(
6
)
Approved Pro

I Have a Guy LLC

4.92(
6
)
Approved Pro
Customers say: Quick response
2019 years of experience
Free onsite estimate

With over 20 years of experience in the construction industry, we are the service professionals you need to take care of your home or business. We handle all types of remodeling projects. We will treat your home as we would treat our own. Give I Have a Guy LLC a call today, we look forward to working with you!

"I had I have a guy construction build me a new garage they did a fantastic job in a timely matter at a fair price I couldn't be happier with the job they performed I would highly recommend them to anybody very honest very straightforward and we'll work with you when things come up best experience ever if I have another project I definitely will be having them do it"

Dan Z on June 2025

With over 20 years of experience in the construction industry, we are the service professionals you need to take care of your home or business. We handle all types of remodeling projects. We will treat your home as we would treat our own. Give I Have a Guy LLC a call today, we look forward to working with you!

"I had I have a guy construction build me a new garage they did a fantastic job in a timely matter at a fair price I couldn't be happier with the job they performed I would highly recommend them to anybody very honest very straightforward and we'll work with you when things come up best experience ever if I have another project I definitely will be having them do it"

Dan Z on June 2025


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 M & J Construction of Moorhead Inc

M & J Construction of Moorhead Inc

4.99(
78
)

M & J Construction of Moorhead Inc

4.99(
78
)
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

M & J Construction was founded in 1966. With over 40 years specializing in roofing, siding and remodeling M & J Construction of Moorhead, Inc. has seen many changes to it's industry. One thing that has remained constant is their commitment to their customers. They also install windows, doors and skylights, metal wraps around windows and doors, fascia & soffit. In the fall and winter months they provide roof maintenance, roof snow removal, ice dam melting and gutter cleaning. They are licensed and insured in both Minnesota and North Dakota. Currently they are members of National Association of Home Builders, Home Builders of Fargo-Moorhead, North Dakota Association of Builders and the owner has earned the (CGR) Certified Graduate Remodeler designation in 2013, (CAPS) Certified Aging in Place Specialist in 2014, (CGP) Certified Green Professional in 2015, (CGB) Certified Graduate Builder in 2015, certified as an "Elite" roofing company with CertainTeed as a SELECT ShingleMaster which is the highest designation of roofers. In 2011 M & J earned an Honorable Mention with the 2nd Annual Quality Asphalt Roofing Case Study Awards Program sponsored by the Asphalt Roofing Manufacturers Association (ARMA) There was some tough competition nationwide from a Federal bldg. to a Comfort Suites. In 2012 CertainTeed sent out a professional architectural photographer to photograph a roof they did using CertainTeed's Presidential TL shingles for their marketing and website. Look for them on CertainTeed's website. In 2013 they received an award from CertainTeed Corporation for Remoderler Project of the Quarter on a single family home they remodeled using Cedar Impressions Shake siding, Landmark Limited Lifetime AR shingles and added an addition onto their garage. The employees of M & J Construction completed the OSHA Safety Training which they now are First Aid and Safety certified. M & J stays on top of the changes and learns new ideas from attending the International Builder's Show and International Roofing Expo yearly so that they are able to pass these changes on to their customers. mjconstructionfm.com.

"The made sure my vents were clear as requested."

Amanda R on January 2020

M & J Construction was founded in 1966. With over 40 years specializing in roofing, siding and remodeling M & J Construction of Moorhead, Inc. has seen many changes to it's industry. One thing that has remained constant is their commitment to their customers. They also install windows, doors and skylights, metal wraps around windows and doors, fascia & soffit. In the fall and winter months they provide roof maintenance, roof snow removal, ice dam melting and gutter cleaning. They are licensed and insured in both Minnesota and North Dakota. Currently they are members of National Association of Home Builders, Home Builders of Fargo-Moorhead, North Dakota Association of Builders and the owner has earned the (CGR) Certified Graduate Remodeler designation in 2013, (CAPS) Certified Aging in Place Specialist in 2014, (CGP) Certified Green Professional in 2015, (CGB) Certified Graduate Builder in 2015, certified as an "Elite" roofing company with CertainTeed as a SELECT ShingleMaster which is the highest designation of roofers. In 2011 M & J earned an Honorable Mention with the 2nd Annual Quality Asphalt Roofing Case Study Awards Program sponsored by the Asphalt Roofing Manufacturers Association (ARMA) There was some tough competition nationwide from a Federal bldg. to a Comfort Suites. In 2012 CertainTeed sent out a professional architectural photographer to photograph a roof they did using CertainTeed's Presidential TL shingles for their marketing and website. Look for them on CertainTeed's website. In 2013 they received an award from CertainTeed Corporation for Remoderler Project of the Quarter on a single family home they remodeled using Cedar Impressions Shake siding, Landmark Limited Lifetime AR shingles and added an addition onto their garage. The employees of M & J Construction completed the OSHA Safety Training which they now are First Aid and Safety certified. M & J stays on top of the changes and learns new ideas from attending the International Builder's Show and International Roofing Expo yearly so that they are able to pass these changes on to their customers. mjconstructionfm.com.

"The made sure my vents were clear as requested."

Amanda R on January 2020


Avatar for Basement Repair Specialties

Basement Repair Specialties

5.00(
7
)

Basement Repair Specialties

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

Locally owned and operated for 25 years. Our owner is always on site and oversees all work.We do not use subcontractors.We offer waterproofing, sump pumps,inside or outside drain tile.Wall re-enforcement,wall straightening and basement floors.We specialize in foundation repair, concrete work,basement windows and basement egress windows.Free estimates

Locally owned and operated for 25 years. Our owner is always on site and oversees all work.We do not use subcontractors.We offer waterproofing, sump pumps,inside or outside drain tile.Wall re-enforcement,wall straightening and basement floors.We specialize in foundation repair, concrete work,basement windows and basement egress windows.Free estimates


Nordick Construction Inc

5.00(
6
)

Nordick Construction Inc

5.00(
6
)
Customers say: Quick response
2004 years of experience

Interior remodeling and rennovation, exterior and interior painting, tape, mud, texture, painting, tile, laminate, etc.

"Andy performed quality work, was dependable, picked up his tools and debris prior to leaving for the day, and ensured that our expectations were met. He enlisted extra help in order to complete the job in a timely manner. Andy effectively communicated with us prior to beginning the job, as well as, throughout the process. We intend to continue hiring him for future projects."

Jerry L on March 2018

Interior remodeling and rennovation, exterior and interior painting, tape, mud, texture, painting, tile, laminate, etc.

"Andy performed quality work, was dependable, picked up his tools and debris prior to leaving for the day, and ensured that our expectations were met. He enlisted extra help in order to complete the job in a timely manner. Andy effectively communicated with us prior to beginning the job, as well as, throughout the process. We intend to continue hiring him for future projects."

Jerry L on March 2018

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Basement Leak Repair questions, answered by experts

When a backflow valve fails, wastewater will flow back into your system, contaminating your drinking water. You’ll immediately notice backflow valve failure from a rotten smell and brown water coming from faucets. Get in contact with a septic pro or a plumber immediately if you suspect this has happened to you.

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:

  • Water in your basement, including damp walls or puddles on the floor

  • Mold spots in your basement

  • Musty smells or odors

  • Warped doors or walls

  • Cracks in walls

  • Insect issues, such as cockroaches and termites

Waterproofing or encapsulating protects against moisture, preventing mold growth and structural damage. These services also enhance energy efficiency and improve air quality by keeping humidity levels in check.

The best basement waterproofing method depends on the issue you’re trying to solve. For example, if you have standing water on your basement floor, a floor drain or sump pump might be your best solution. Or, if you have standing water around your foundation, installing a drainage system that protects your basement and foundation might be better.

The Barnesville, 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.