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  • Verified reviews icon155
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Find Foundation repair specialists in Potomac

Avatar for Basement Gurus, LLC

Basement Gurus, LLC

4.85(
156
)
Approved Pro

Basement Gurus, LLC

4.85(
156
)
Approved Pro
Customers say: Quality work
15 years of experience
Free onsite estimate

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025


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(
41
)
Approved Pro

Best Buy Waterproofing

5.00(
41
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% 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!

"Ed fixed the problem 2 thumbs up!"

Pete H on December 2025

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!

"Ed fixed the problem 2 thumbs up!"

Pete H on December 2025


Avatar for Basement Waterproofing Nationwide Inc

Basement Waterproofing Nationwide Inc

4.81(
141
)
Approved Pro

Basement Waterproofing Nationwide Inc

4.81(
141
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
38 years of experience

Founded in 1987, Steve Taylor was passionate about providing homeowners with an honest approach to basement waterproofing and delivering exceptional customer service for every job. BWN swiftly built a reputable, trusted brand spanning across Maryland and Delaware. Today, as we look back over 35 years of business, our employee dedication and steadfast customer loyalty continue to fuel BWN’s success. This is best demonstrated by BWN’s abundant referral business and 55,000+ customers.

"Quick, efficient, super communication, great cleanup. Highly recommend."

Ellen H on October 2022

Founded in 1987, Steve Taylor was passionate about providing homeowners with an honest approach to basement waterproofing and delivering exceptional customer service for every job. BWN swiftly built a reputable, trusted brand spanning across Maryland and Delaware. Today, as we look back over 35 years of business, our employee dedication and steadfast customer loyalty continue to fuel BWN’s success. This is best demonstrated by BWN’s abundant referral business and 55,000+ customers.

"Quick, efficient, super communication, great cleanup. Highly recommend."

Ellen H on October 2022


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 expert solutions for below-grade moisture control, prevention, concrete repair, and foundation repair in the greater Washington, D.C. area. Call us at (703)690-3889 to schedule your appointment. Our certified applicators use the industry's most effective and eco-friendly waterproofing, drainage, concrete, and foundation repair products, offering a one-stop solution for your needs. Trusted by hundreds of homeowners, contractors, and builders, our reputation is built on word-of-mouth referrals. We pride ourselves on excellent customer service and stand behind our work. As members of Supportworks and Contractor Nation, our goal is to create satisfied customers. Service areas include D.C., Virginia (Fairfax, Loudoun, Prince William, Fauquier, Arlington, Alexandria, Stafford, Spotsylvania), and Maryland (Montgomery, Frederick, Prince George, Howard, 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 expert solutions for below-grade moisture control, prevention, concrete repair, and foundation repair in the greater Washington, D.C. area. Call us at (703)690-3889 to schedule your appointment. Our certified applicators use the industry's most effective and eco-friendly waterproofing, drainage, concrete, and foundation repair products, offering a one-stop solution for your needs. Trusted by hundreds of homeowners, contractors, and builders, our reputation is built on word-of-mouth referrals. We pride ourselves on excellent customer service and stand behind our work. As members of Supportworks and Contractor Nation, our goal is to create satisfied customers. Service areas include D.C., Virginia (Fairfax, Loudoun, Prince William, Fauquier, Arlington, Alexandria, Stafford, Spotsylvania), and Maryland (Montgomery, Frederick, Prince George, Howard, 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

4.50(
275
)
Approved Pro

JES Foundation Repair

4.50(
275
)
Approved Pro
Customers say: Super punctual
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 Allmaster Home Services

Allmaster Home Services

4.85(
31
)
Approved Pro

Allmaster Home Services

4.85(
31
)
Approved Pro
Customers say: Quality work
15 years of experience
Free onsite estimate

John has been in the home improvement industry for more than 40 years. He has spent more than 16 years training and consulting in the waterproofing and structural repair industry. He has also testified as an expert witness in both Maryland and Virginia. His honest approach and competitive pricing has gained many satisfied customers over the years.

"Have used allmaster on multiple projects and will continue to do so. Excellent work"

Adam M on April 2024

John has been in the home improvement industry for more than 40 years. He has spent more than 16 years training and consulting in the waterproofing and structural repair industry. He has also testified as an expert witness in both Maryland and Virginia. His honest approach and competitive pricing has gained many satisfied customers over the years.

"Have used allmaster on multiple projects and will continue to do so. Excellent work"

Adam M on April 2024


Archer Contractors RPD Corp.

4.94(
23
)
Approved Pro

Archer Contractors RPD Corp.

4.94(
23
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
37 years of experience

Drainage and foundation issues are common yet so often misdiagnosed. Typical warning signs are damp, leaky basements, yard flooding, erosion, foundation cracks, settling, moldy smells. Unchecked, these issues can lead to structural damage, mold, and resulting property devaluation. With so many differing methods out there, how do you know which one is actually viable? Proposals can seem conceptually similar, but design details and specs are crucial. Every problem requires a unique combination of corrective measures to achieve an effective result. The approach should never be one size fits all. Our consultants have the expertise to provide you an effective solution to your unique case. Whether it's storm water flooding and eroding your land, a stressed leaking foundation, a wet basement, you can count on our team's vast experience to apply proper design with high attention to detail. Call Archer Contractors today for your friendly consultation.

"This company solved the problem of rain water flooding our garage. They regraded the grass and dirt around our backyard and the garage is bone dry even after a weekend of pouring rain. They were excellent. Their bid was thousands of dollars less than 2 other companies. I would highly recommend them. Professional and responsive."

Jeff S on July 2018

Drainage and foundation issues are common yet so often misdiagnosed. Typical warning signs are damp, leaky basements, yard flooding, erosion, foundation cracks, settling, moldy smells. Unchecked, these issues can lead to structural damage, mold, and resulting property devaluation. With so many differing methods out there, how do you know which one is actually viable? Proposals can seem conceptually similar, but design details and specs are crucial. Every problem requires a unique combination of corrective measures to achieve an effective result. The approach should never be one size fits all. Our consultants have the expertise to provide you an effective solution to your unique case. Whether it's storm water flooding and eroding your land, a stressed leaking foundation, a wet basement, you can count on our team's vast experience to apply proper design with high attention to detail. Call Archer Contractors today for your friendly consultation.

"This company solved the problem of rain water flooding our garage. They regraded the grass and dirt around our backyard and the garage is bone dry even after a weekend of pouring rain. They were excellent. Their bid was thousands of dollars less than 2 other companies. I would highly recommend them. Professional and responsive."

Jeff S on July 2018


Avatar for NV Waterproofing, LLC

NV Waterproofing, LLC

4.86(
7
)
Approved Pro

NV Waterproofing, LLC

4.86(
7
)
Approved Pro
Customers say: True professional
21 years of experience
Free onsite estimate

With over 900 5-star Google reviews, NV Waterproofing & Foundation Repair has been locally owned and operated since 1986, proudly solving underlying water problems for thousands of homeowners. We specialize in turning wet, stinky spaces into dry, healthy basements. From basement waterproofing, foundation repair concrete leveling and crack repair, we'll ensure your home stays safe, dry, and protected. To find out more about our services, contact the basement waterproofing experts at NV Waterproofing & Foundation Repair today. We offer free, no-obligation cost estimates in Washington D.C., Northern VA and Southern MD.

"I highly recommend NV Waterproofing & Foundation Repair! The work crew, Alfredo, David, and Javier were excellent! Alfredo Hernandez, the Foreman, kept me updated every step of the process, thoroughly answered every question I had, and addressed all concerns with expert problem solving and skill. These three men were in my home for a couple weeks doing extensive foundation and waterproofing work. They were always professional, courteous, and kept the work space clean. I was able to leave home for appointments with full confidence and trust in this crew. The sales manger, Brendan Feehan, was incredibly knowledgeable as well, and was able to solve every problem with my complex foundation and waterproofing issues. He was accessible to answer any questions I had throughout the process, and available to stop by as needed. Brendan is professional, helpful, and an expert in this profession. He's not just selling products. He understands the complexities of old and new construction"

Emily T on September 2025

With over 900 5-star Google reviews, NV Waterproofing & Foundation Repair has been locally owned and operated since 1986, proudly solving underlying water problems for thousands of homeowners. We specialize in turning wet, stinky spaces into dry, healthy basements. From basement waterproofing, foundation repair concrete leveling and crack repair, we'll ensure your home stays safe, dry, and protected. To find out more about our services, contact the basement waterproofing experts at NV Waterproofing & Foundation Repair today. We offer free, no-obligation cost estimates in Washington D.C., Northern VA and Southern MD.

"I highly recommend NV Waterproofing & Foundation Repair! The work crew, Alfredo, David, and Javier were excellent! Alfredo Hernandez, the Foreman, kept me updated every step of the process, thoroughly answered every question I had, and addressed all concerns with expert problem solving and skill. These three men were in my home for a couple weeks doing extensive foundation and waterproofing work. They were always professional, courteous, and kept the work space clean. I was able to leave home for appointments with full confidence and trust in this crew. The sales manger, Brendan Feehan, was incredibly knowledgeable as well, and was able to solve every problem with my complex foundation and waterproofing issues. He was accessible to answer any questions I had throughout the process, and available to stop by as needed. Brendan is professional, helpful, and an expert in this profession. He's not just selling products. He understands the complexities of old and new construction"

Emily T on September 2025

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Foundation Repair questions, answered by experts

Not all cracks in the basement floor signal foundation problems. As the house settles, you’ll notice very thin hairline cracks, which you don’t need to worry about. Cracks that are 1/8 inch or wider should require sealing, while ones that are 1/2 inch or wider require leveling. However, if you have cracks in your basement floor with heaving, you should call a pro to assess the situation. Heaving can lead to uneven flooring, structural issues, and foundation problems.

Crumbling concrete steps will affect your ability to drill into the material and affix a sturdy railing. If the damage is primarily cosmetic, you might be able to DIY the repair with a patch kit. If the concrete is badly crumbling, hire a professional who specializes in pouring concrete. The average concrete step repair cost is $500 from a professional, but the extent of the damage will determine your actual cost. The professional may recommend a replacement if the damage is extensive.

Yes. Water can penetrate through a concrete foundation wall. This can happen whether or not you have cracks, as concrete is a porous material. You’ll want to take steps to waterproof your basement or crawl space.

Signs of structural damage include foundation cracks, roof leaks, bouncy floors, crumbling concrete, and cracked or leaning chimneys. Structural damage can make itself apparent in various ways, and sometimes, there may not be obvious signs. Inspect your foundation and roof annually to stay ahead of potentially serious structural problems. 

You may want to hire a concrete floor contractor to check out your home’s concrete surfaces or inspect your home’s foundation for minor damages that they can fix while on site. They may be able to fix cracks in your driveway or garage floor the same day they fix your concrete steps, as well. General concrete repair experts usually won’t be able to handle larger jobs, like leveling a sunken foundation, so you’ll need to hire a structural engineer for bigger projects.

The Potomac, MD homeowners’ guide to foundation repairs

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