Top-rated foundation repair specialists.

Get matched with top foundation repair specialists in Nanjemoy, MD

Enter your zip and get matched with up to 5 pros

Need a pro for your foundation repair project in Nanjemoy, MD?

Select your specific project to find the pro for you.

TRUSTED BY NANJEMOY, MD HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon104
    Verified foundation repairs reviews

Find Foundation repair specialists in Nanjemoy

Avatar for S&S Waterproofing And Foundation Repair

S&S Waterproofing And Foundation Repair

5.00(
37
)
Approved Pro

S&S Waterproofing And Foundation Repair

5.00(
37
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

At S&S Waterproofing we have over 25+ years of combined experience in Waterproofing and foundation repair. We never use sub-contractors and aren't a franchise owned company that uses high pressure sales tactics. We are a certified foundation repair specialist and install hydraulic push piers and helical piers. We offer a lifetime transferable warranty and free inspections.

"Steve was great to work with - knowledgeable, flexible with scheduling, and always available to answer questions. His crew was courteous and efficient. We are very happy with the results. Highly recommend!"

Nadine T on January 2024

At S&S Waterproofing we have over 25+ years of combined experience in Waterproofing and foundation repair. We never use sub-contractors and aren't a franchise owned company that uses high pressure sales tactics. We are a certified foundation repair specialist and install hydraulic push piers and helical piers. We offer a lifetime transferable warranty and free inspections.

"Steve was great to work with - knowledgeable, flexible with scheduling, and always available to answer questions. His crew was courteous and efficient. We are very happy with the results. Highly recommend!"

Nadine T on January 2024


Avatar for Best Buy Waterproofing

Best Buy Waterproofing

5.00(
40
)
Approved Pro

Best Buy Waterproofing

5.00(
40
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

With over 30 years experience in Basement Waterproofing and Mold Remediation services, Andrew A. Altman, Sr. Is a top rated veteran with a proven record beyond belief! In fact the certified, professional Staff has a combined experience of over 60 years. When you hire Best Buy Waterproofing, you are hiring the very best in the industry! They have the WIT attitude ( Whatever It Takes ) and customer satisfaction is their #1 priority as they are "Comitted To Excellence!" Best Buy Waterproofing is licensed, bonded, insured, and certified. They have earned the reputation of standing behind their incredible work and customer satisfaction. They offer free estimates and the very best financing available. They even have No payments & No Interest for 18 months! Best Buy Waterproofing stands behind their lifetime of the structure warranty on their systems. Also on all sump pump systems and their intelligent battery back ups! Best Buy is the ONLY company who offers this kind of warranty on those services as Strength is their Foundation! If you need a dry basement certificate, call us immediately. We are operational 24/7 365!

"Excellent job, excellent experience, highly professional workers!! What else can I say?! And the price was right and fair. They hit our basement waterproofing needs out of the park! Could not be happier!! Would highly recommend to anyone needing waterproofing!"

Joelyn M on July 2023

With over 30 years experience in Basement Waterproofing and Mold Remediation services, Andrew A. Altman, Sr. Is a top rated veteran with a proven record beyond belief! In fact the certified, professional Staff has a combined experience of over 60 years. When you hire Best Buy Waterproofing, you are hiring the very best in the industry! They have the WIT attitude ( Whatever It Takes ) and customer satisfaction is their #1 priority as they are "Comitted To Excellence!" Best Buy Waterproofing is licensed, bonded, insured, and certified. They have earned the reputation of standing behind their incredible work and customer satisfaction. They offer free estimates and the very best financing available. They even have No payments & No Interest for 18 months! Best Buy Waterproofing stands behind their lifetime of the structure warranty on their systems. Also on all sump pump systems and their intelligent battery back ups! Best Buy is the ONLY company who offers this kind of warranty on those services as Strength is their Foundation! If you need a dry basement certificate, call us immediately. We are operational 24/7 365!

"Excellent job, excellent experience, highly professional workers!! What else can I say?! And the price was right and fair. They hit our basement waterproofing needs out of the park! Could not be happier!! Would highly recommend to anyone needing waterproofing!"

Joelyn M on July 2023


Avatar for NV Waterproofing & Foundation Repair

NV Waterproofing & Foundation Repair

4.79(
112
)
Approved Pro

NV Waterproofing & Foundation Repair

4.79(
112
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
39 years of experience

Established in 1986, NV Waterproofing provides below grade solutions for moisture control and prevention to customers in the greater Washington, D.C. area. Please call our office today to schedule your appointment at 703 690-3889. We employ only highly trained and certified applicators of the industry's most effective and environmentally sound waterproofing and drainage products. One Stop Shopping for Waterproofing, Moisture Control, and Drainage Systems. Over the past few years alone, our customer base has included hundreds of homeowners, general contractors, production home builders, and custom home builders. This base has been developed primarily through word of mouth. Our technicians deliver excellent customer service and results, and our company stands behind this work. NV Waterproofing is a member of both the Supportworks and Contractor Nation networks. Both are international groups of more than 130 foundation repair and waterproofing contractors that shares information, best practices and advice, helping each other be better together than they would be alone. Our goal has always been to create very satisfied customers. Service area covered: District of Columbia Virginia Counties - Fairfax, Loudoun, Prince William, Fauquier, Arlington and Alexandria. Maryland Counties - Montgomery, Frederick, Prince George and St. Mary's.

"Mark and his crew were terrific. Professional all the way. Pleasure working with them. Will use them again."

Jack P on October 2025

Established in 1986, NV Waterproofing provides below grade solutions for moisture control and prevention to customers in the greater Washington, D.C. area. Please call our office today to schedule your appointment at 703 690-3889. We employ only highly trained and certified applicators of the industry's most effective and environmentally sound waterproofing and drainage products. One Stop Shopping for Waterproofing, Moisture Control, and Drainage Systems. Over the past few years alone, our customer base has included hundreds of homeowners, general contractors, production home builders, and custom home builders. This base has been developed primarily through word of mouth. Our technicians deliver excellent customer service and results, and our company stands behind this work. NV Waterproofing is a member of both the Supportworks and Contractor Nation networks. Both are international groups of more than 130 foundation repair and waterproofing contractors that shares information, best practices and advice, helping each other be better together than they would be alone. Our goal has always been to create very satisfied customers. Service area covered: District of Columbia Virginia Counties - Fairfax, Loudoun, Prince William, Fauquier, Arlington and Alexandria. Maryland Counties - Montgomery, Frederick, Prince George and St. Mary's.

"Mark and his crew were terrific. Professional all the way. Pleasure working with them. Will use them again."

Jack P on October 2025


Avatar for JES Foundation Repair

JES Foundation Repair

4.24(
339
)
Approved Pro

JES Foundation Repair

4.24(
339
)
Approved Pro
Customers say: Quality work
32 years of experience
Free onsite estimate

Established in 1993, JES 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 Virginia and Maryland, we bring our local expertise closer to you. JES 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 JES, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 410516000653 (DC) | 50637 (MD) | WV027473 (WV)

"JES was very professional and easy to work with from the beginning to the end of our basement project. Eric was very knowledgeable, and exceedingly helpful in answering our questions and making us feel comfortable with the choices we made. The crew that did the work were quick, clean, and extremely efficient. We were very happy with everything they did!"

Andrea M on October 2025

Established in 1993, JES 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 Virginia and Maryland, we bring our local expertise closer to you. JES 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 JES, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 410516000653 (DC) | 50637 (MD) | WV027473 (WV)

"JES was very professional and easy to work with from the beginning to the end of our basement project. Eric was very knowledgeable, and exceedingly helpful in answering our questions and making us feel comfortable with the choices we made. The crew that did the work were quick, clean, and extremely efficient. We were very happy with everything they did!"

Andrea M on October 2025


Avatar for JES Foundation Repair

JES Foundation Repair

4.54(
431
)
Approved Pro

JES Foundation Repair

4.54(
431
)
Approved Pro
Customers say: True professional
32 years of experience
Free onsite estimate

JES Foundation Repair (JES), A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Virginia and Maryland. With fully trained technicians, industry-leading products, and nationally backed warranties, JES is here to restore your foundation or crawlspace.

"After having a horrible experience with Andre and filing a complaint with the GM for the area, results still remain to be seen. So professionalism is non-existent and follow-thru still hasn't happened. The word of the GM, contractor supv as well as the actual contractors/engineers are garbage. Character by way of integrity and keeping their word is definitely not available with this company. Don't believe anything they say."

Sa B on August 2025

JES Foundation Repair (JES), A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Virginia and Maryland. With fully trained technicians, industry-leading products, and nationally backed warranties, JES is here to restore your foundation or crawlspace.

"After having a horrible experience with Andre and filing a complaint with the GM for the area, results still remain to be seen. So professionalism is non-existent and follow-thru still hasn't happened. The word of the GM, contractor supv as well as the actual contractors/engineers are garbage. Character by way of integrity and keeping their word is definitely not available with this company. Don't believe anything they say."

Sa B on August 2025


Avatar for 7th State Builders, LLC

7th State Builders, LLC

4.71(
70
)
Approved Pro

7th State Builders, LLC

4.71(
70
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
6 years of experience

7th State Builders, LLC, is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. 7th State Builders, LLC, is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

"I am having a truly unpleasant experience with 7th State Builders. I paid 14,450.00$ deposit in good faith. They were contracted to rebuild my deck, place a roof structure and screen on the deck. I trusted that they would complete the work. Instead, they took my money and one year later had not even started on the project. Not only did they fail to perform the agreed-upon services for the deck, but I was forced to hire an attorney to try and recover my deposit. Which I haven?t yet (over one year). Thus, creating unnecessary expenses to an already frustrating situation. I would strongly advise against using this company. They are unprofessional, uncommunicative, unreliable and clearly not trustworthy. My experience currently has been a complete waste of time, money and emotional energy. Dr. CLARICE BROWN "

Clarice B on July 2025

7th State Builders, LLC, is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. 7th State Builders, LLC, is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

"I am having a truly unpleasant experience with 7th State Builders. I paid 14,450.00$ deposit in good faith. They were contracted to rebuild my deck, place a roof structure and screen on the deck. I trusted that they would complete the work. Instead, they took my money and one year later had not even started on the project. Not only did they fail to perform the agreed-upon services for the deck, but I was forced to hire an attorney to try and recover my deposit. Which I haven?t yet (over one year). Thus, creating unnecessary expenses to an already frustrating situation. I would strongly advise against using this company. They are unprofessional, uncommunicative, unreliable and clearly not trustworthy. My experience currently has been a complete waste of time, money and emotional energy. Dr. CLARICE BROWN "

Clarice B on July 2025


The Crack Man

4.98(
62
)

The Crack Man

4.98(
62
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Specializing in injection of cracks in poured concrete foundation walls to prevent water intrusion and protect foundation and basement. Specialize in working with Realtors, Home Inspectors and Homeowners. MHIC # 93169. Free estimates via phone. Cost effective & permanent.

"Had a 5 foot long crack in my poured-concrete basement wall. It was not leaking, but I wanted to have it sealed regardless. Alek came on a Saturday, gave me his estimate, and then repaired the wall. He was very forthcoming by explaining that the repair was not absolutely necessary if there was no leakage, but I wanted it sealed anyway. He did a top rate job and I would not hesitate to use his services again."

William R on April 2020

Specializing in injection of cracks in poured concrete foundation walls to prevent water intrusion and protect foundation and basement. Specialize in working with Realtors, Home Inspectors and Homeowners. MHIC # 93169. Free estimates via phone. Cost effective & permanent.

"Had a 5 foot long crack in my poured-concrete basement wall. It was not leaking, but I wanted to have it sealed regardless. Alek came on a Saturday, gave me his estimate, and then repaired the wall. He was very forthcoming by explaining that the repair was not absolutely necessary if there was no leakage, but I wanted it sealed anyway. He did a top rate job and I would not hesitate to use his services again."

William R on April 2020


"He handled everything, made great suggestions and is a true craftsman. Always cleaned up and was timely, a great guy!"

Sally E on February 2019

Owner operated. Occasionally uses subs for plumbing and electrical.

"He handled everything, made great suggestions and is a true craftsman. Always cleaned up and was timely, a great guy!"

Sally E on February 2019


Avatar for Basement Detective

Basement Detective

4.91(
67
)

Basement Detective

4.91(
67
)
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

As an essential service, Basement Detective is still inspecting and servicing customers. We are taking extra precautions to ensure everyone’s health and safety in serving our customers, including: ✓Cleaning our hands often with soap and/or using hand sanitizer. ✓Wearing gloves during our inspections. ✓Ensuring we are covering any cough or sneeze. ✓Keeping a safe distance from people. ✓Wiping down equipment that is used during our inspections. We are a full service waterproofing and remodeling contractor. We pride ourselves on having honest technicians give honest evaluations. We offer solutions and options that are affordable and practical. Our waterproofing solutions carry a fully transferable lifetime warranty. We also offer many flexible financing options. Additional service areas: King George, Warren, Arlington, Clarke, Fairfax, Fauquier, Frederick, Loudoun, Montgomery, Prince George’s & Prince William Counties

"Had a great experience with Chris Kuper at Basement Detective! My basement flooded from non-stop storms and I needed a sump pump installed along with complete renovation of my basement. They were very competitive in pricing and outstanding in results. Chris even helped coordinate with the contractor doing my basement renovation after the sump was installed to make sure none of the drainage was disturbed by the new work being done. I have since weathered at least 3 large storms and can hear the sump working as needed. Very happy with the results!"

Ian P on April 2020

As an essential service, Basement Detective is still inspecting and servicing customers. We are taking extra precautions to ensure everyone’s health and safety in serving our customers, including: ✓Cleaning our hands often with soap and/or using hand sanitizer. ✓Wearing gloves during our inspections. ✓Ensuring we are covering any cough or sneeze. ✓Keeping a safe distance from people. ✓Wiping down equipment that is used during our inspections. We are a full service waterproofing and remodeling contractor. We pride ourselves on having honest technicians give honest evaluations. We offer solutions and options that are affordable and practical. Our waterproofing solutions carry a fully transferable lifetime warranty. We also offer many flexible financing options. Additional service areas: King George, Warren, Arlington, Clarke, Fairfax, Fauquier, Frederick, Loudoun, Montgomery, Prince George’s & Prince William Counties

"Had a great experience with Chris Kuper at Basement Detective! My basement flooded from non-stop storms and I needed a sump pump installed along with complete renovation of my basement. They were very competitive in pricing and outstanding in results. Chris even helped coordinate with the contractor doing my basement renovation after the sump was installed to make sure none of the drainage was disturbed by the new work being done. I have since weathered at least 3 large storms and can hear the sump working as needed. Very happy with the results!"

Ian P on April 2020


Avatar for On the Level Contracting & Trucking, Inc.

On the Level Contracting & Trucking, Inc.

5.00(
19
)

On the Level Contracting & Trucking, Inc.

5.00(
19
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Established in 1995, our local, family owned and operated business strives to provide exceptional remodeling services. Turn to On The Level Contracting in Chantilly, VA for plumbing and electrical, kitchen and bathroom remodeling, deck services, and more. Depend on our team to take care of all your needs efficiently! You can give us a call at 571-375-1700 for more information!

"We had a very complex front door to install and On the Level did a superior job -- the quality of the work was superb, the price was more than fair, and all of the work was completed in a timely manner. Peter did a great job communicating through out the process --we would hire them again."

jeffrey s on April 2020

Established in 1995, our local, family owned and operated business strives to provide exceptional remodeling services. Turn to On The Level Contracting in Chantilly, VA for plumbing and electrical, kitchen and bathroom remodeling, deck services, and more. Depend on our team to take care of all your needs efficiently! You can give us a call at 571-375-1700 for more information!

"We had a very complex front door to install and On the Level did a superior job -- the quality of the work was superb, the price was more than fair, and all of the work was completed in a timely manner. Peter did a great job communicating through out the process --we would hire them again."

jeffrey s on April 2020

...
Showing 1-10 of 164
Foundation Repair questions, answered by experts

Most homeowner’s insurance policies will cover the cost of slab leak repair that results from a natural disaster, like an earthquake or a severe flood, or from a tree falling on your home. Damage from frozen pipes in your slab is also typically covered. However, your policy is unlikely to cover the repair if an invading tree root causes the damage or if it’s a pinhole leak that results from corrosion. You should contact your insurance provider for a full run-down of what they cover.

If your foundation is unfinished, has surface damage, or is just plain unappealing, foundation refacing can be another great way to increase your curb appeal and give your foundation a fresh look. Used in conjunction with foundation planting, refacing can completely change the look of your foundation and your home. 

If your foundation repair claim gets denied, the first step is to carefully read over your policy and denial letter so you understand the reason for the denial. Then, gather evidence and documents that can support your case and appeal the denial with your insurance company. If your insurer does not eventually honor your claim, you may want to file a complaint with the insurance department in your state. In some cases, it may make sense to work with an attorney and file a lawsuit.

Trenchless sewer replacements are actually a great solution for sewer lines located under concrete. A professional can still sleeve and burst old piping to make room for a new one without having to dig up your slab.

Although it is possible for a house to collapse from a sinking foundation, it will likely take many years, and signs of major issues will be apparent for a while. Homes on hillsides or in areas that experience frequent washouts are at a higher risk of collapse. Still, barring a natural disaster or extreme circumstances, houses are unlikely to fully collapse from foundation damage.

The Nanjemoy, MD homeowners’ guide to foundation repairs

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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"