We were blown away by the waterproofing job! His team gave 100% every single day. I will definitely recommend this company to my friends and family.

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TRUSTED BY BALTIMORE, MD HOMEOWNERS
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Average homeowner rating237
Verified basement waterproofing services reviews
Verified Reviews for Basement Waterproofing pros in Baltimore, MD
Last update on October 13, 2025
- Homeowner.
- William B.
Floodbusters did an excellent job sealing the water out of our basement. They installed a sump pump and drainage system which they check annually. We were very happy with their service. Employees were polite and knowledgable. We highly recommend them.
- Lynne F.
The person who provided the estimate was punctual, polite & professional. BUT, we did not choose to work with B-Dry. Here's why...sales tactics, pressure, upselling, price. I did feel a little verbal pressure to commit immediately, (discount for agreeing by end of day of estimate) which was...
- Drew S.
Jamie Seymour explained the work carefully to us and coordinated with the contractor we hired for the demolition and refinishing work. We compared prices and found that All Aspects Waterproofing had great attention to detail without charging the highest price (we had other bids that were 30%...
- Robert B.
We would recommend this company to family and friends, especially because Jay was so honest and didn't try to sell us anything when he determined that we did not need his services. We hope we will not ever need to contact a waterproofing company again, but if we do we would be happy to work...
- Elissa S.
He came and inspected my basement. Told me that I did not need waterproofing services, that a plexiglass shield over the window well outside would take care of the problem. He was thorough and respectful. I could not ask for better service.
- Kim B.
I can't say enough about the professionalism and appearance of the finished product. I am confident our basement will leak no more! Thanks for correcting past mistakes made from various contractors that don't understand the importance of water drainage. I have learned it is so much more...
- Forest B.
It was part of the contingency on a home that we bought that the basement was waterproofed and they came back and touched up some things. They were very helpful. We really didn't deal with them to start with the work, but they came back and fixed everything they needed to. They were on time.
- Pat D.
I would not recommend this company at all. It started first when they were taking out the concrete in the basement they decided to demolish my work bench too. Which they were not suppose to do. Then Memo the owner argued with me that it was rotted which it wasn?t. I told him the point is...
Find Basement waterproofing pros in Baltimore

Quality 1st Basement Systems, Inc
Quality 1st Basement Systems, Inc
Quality 1st Basement Systems is your local, family-owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Crack Repair, Egress Windows and Egress Stairwell, and Crawlspace Encapsulation too. 100% FINANCING AVAILABLE and free estimates. We have been in business for 25 years and have five star ratings with Google, Yelp, and the BBB. Winner of the 2021 BBB Torch Award for Market Place Ethics and finalist for the 2022 International BBB Torch award for Market Place Ethics. CONTACT US NOW BY CALLING 1-800-768-6745 OR EMAIL US AT [email protected]
"Service was great from sales, to installation, to post installation support. Very responsive, very professional. It's hard to find in this 'space'--there are a lot of shady people in basement water damage/repair, and this place exceeded expectations. We've had our repair in place for 4+ years, with only 1 small issue on a wall seam crack, and that was fixed within 24 hours of reporting the issue. Stand up place! Thank you for such great service and support."
John M on January 2024
Quality 1st Basement Systems is your local, family-owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Crack Repair, Egress Windows and Egress Stairwell, and Crawlspace Encapsulation too. 100% FINANCING AVAILABLE and free estimates. We have been in business for 25 years and have five star ratings with Google, Yelp, and the BBB. Winner of the 2021 BBB Torch Award for Market Place Ethics and finalist for the 2022 International BBB Torch award for Market Place Ethics. CONTACT US NOW BY CALLING 1-800-768-6745 OR EMAIL US AT [email protected]
"Service was great from sales, to installation, to post installation support. Very responsive, very professional. It's hard to find in this 'space'--there are a lot of shady people in basement water damage/repair, and this place exceeded expectations. We've had our repair in place for 4+ years, with only 1 small issue on a wall seam crack, and that was fixed within 24 hours of reporting the issue. Stand up place! Thank you for such great service and support."
John M on January 2024

JES Foundation Repair
JES Foundation Repair
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)
"They were recommended to me. Was honest with estimate. Told me everything that was going happen. Performed work in timely fashion. Would definitely recommend again"
Thomas S on August 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)
"They were recommended to me. Was honest with estimate. Told me everything that was going happen. Performed work in timely fashion. Would definitely recommend again"
Thomas S on August 2025

Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
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

Guardian Basement Waterproofing
Guardian Basement Waterproofing
Guardian Basement Waterproofing understands your basement waterproofing needs. We know how to detect the source of water intrusion and stop leaks before they happen. We help our customers reclaim their basements from water, mold and mildew by doing what we do best: finding and repairing the source of their water-related problems. Guardian uses only skilled and experienced technicians to do the job right the first time! As a basement waterproofing company with more than 40 years of waterproofing experience, Guardian stands behind its work with a Lifetime Guarantee. Additional phone number - (410) 484-9812.
"Avoid Guardian Basement – False Promises and Poor Customer Service Two years ago, I hired Guardian Basement to fix a water issue on the front wall of my basement. Joel came out, sold me on their system, and guaranteed I would have a dry basement. We also replaced two sump pumps and had the sump well dug deeper. The main selling point was their lifetime guarantee. Fast forward two years, and I have the exact same problem. Every time there is significant rain, water rushes through the same wall. I reached out to Guardian Basement, and Joel scheduled a time to check it out. His tone was completely different this time—defensive and dismissive. Within five minutes, he claimed, “Your system is clogged.” He made this assessment without any real inspection—just by looking at the cement floor and wall. Now, here’s the catch: If you look closely at their so-called lifetime warranty, clogs are not covered. So despite spending thousands of dollars, I’m back to square one. To make matters worse, Joel was incredibly condescending and unpleasant to deal with. After this experience, I looked into their licensing with the state of Maryland and found multiple complaints against them. I am now in the process of submitting my own complaint as well. I would never recommend Guardian Basement to anyone. Save your money and go with a company that truly knows what they are doing and stands behind their work. If I could give them a negative number of stars I would."
Kelly M on March 2025
Guardian Basement Waterproofing understands your basement waterproofing needs. We know how to detect the source of water intrusion and stop leaks before they happen. We help our customers reclaim their basements from water, mold and mildew by doing what we do best: finding and repairing the source of their water-related problems. Guardian uses only skilled and experienced technicians to do the job right the first time! As a basement waterproofing company with more than 40 years of waterproofing experience, Guardian stands behind its work with a Lifetime Guarantee. Additional phone number - (410) 484-9812.
"Avoid Guardian Basement – False Promises and Poor Customer Service Two years ago, I hired Guardian Basement to fix a water issue on the front wall of my basement. Joel came out, sold me on their system, and guaranteed I would have a dry basement. We also replaced two sump pumps and had the sump well dug deeper. The main selling point was their lifetime guarantee. Fast forward two years, and I have the exact same problem. Every time there is significant rain, water rushes through the same wall. I reached out to Guardian Basement, and Joel scheduled a time to check it out. His tone was completely different this time—defensive and dismissive. Within five minutes, he claimed, “Your system is clogged.” He made this assessment without any real inspection—just by looking at the cement floor and wall. Now, here’s the catch: If you look closely at their so-called lifetime warranty, clogs are not covered. So despite spending thousands of dollars, I’m back to square one. To make matters worse, Joel was incredibly condescending and unpleasant to deal with. After this experience, I looked into their licensing with the state of Maryland and found multiple complaints against them. I am now in the process of submitting my own complaint as well. I would never recommend Guardian Basement to anyone. Save your money and go with a company that truly knows what they are doing and stands behind their work. If I could give them a negative number of stars I would."
Kelly M on March 2025

Green Future Construction
Green Future Construction
Green Future Construction and Tree Specialists is the area's premier full-service company for all your outdoor needs! With experts in construction, landscape design, and tree services all under one roof, we make scheduling your project easy and ensure it’s managed seamlessly from start to finish, exceeding expectations every step of the way.
"Absolutely recommend Green Future-they removed an enormous tree from our back yard, which we were extremely anxious about. They were fantastic; fair priced, very fast turnaround from estimate to completion."
Dyana Q on April 2025
Green Future Construction and Tree Specialists is the area's premier full-service company for all your outdoor needs! With experts in construction, landscape design, and tree services all under one roof, we make scheduling your project easy and ensure it’s managed seamlessly from start to finish, exceeding expectations every step of the way.
"Absolutely recommend Green Future-they removed an enormous tree from our back yard, which we were extremely anxious about. They were fantastic; fair priced, very fast turnaround from estimate to completion."
Dyana Q on April 2025

Hed Construction llc
Hed Construction llc
20+ years of experience! Servicing basement waterproofing sump pump, battery back ups home remodeling kitchen bathrooms fence decks roofing siding and much more licensed and insurance
"Great would recommend"
Brian C on October 2025
20+ years of experience! Servicing basement waterproofing sump pump, battery back ups home remodeling kitchen bathrooms fence decks roofing siding and much more licensed and insurance
"Great would recommend"
Brian C on October 2025

AA Action Waterproofing Inc
AA Action Waterproofing Inc
We strive to exceed your expectations in waterproofing, mold remediation and foundation repair. We take pride in our work, that’s why we don’t employ subcontractors. We understand there are a lot of choices out there when choosing a certified installer – we hope you choose us! Protect your home and health from mold and mildew invaders. In our 28 years of experience, we have never encountered a wet basement, crawlspace encapsulation or mold removal condition that we couldn’t handle. Give us a call today for a free, no obligation inspection and professional basement waterproofing system tailored for your home or commercial project. AA Action Waterproofing is licensed, insured and bonded with a A+ Rating with the BBB. Please call us and we’ll happily supply you with references.
"Our 25+ year-old French drain system in our 100-year-old basement was showing signs of failure, so we contacted several companies to get advice on what to do. Jason of AA Action was very professional and helpful when he performed his initial inspection of our basement, and had very good ideas on what needed to be done. The price he quoted for the work was also, based on what we had read, reasonable. We ended up going with another company recommended by Angi, but only because it brought up a couple of options that we had not thought of, and we felt comfortable with them doing the extra work. We were not at all unhappy with AA Action's suggestions or pricing - it's just that the other company's additional ideas made sense for our circumstances."
John A on June 2024
We strive to exceed your expectations in waterproofing, mold remediation and foundation repair. We take pride in our work, that’s why we don’t employ subcontractors. We understand there are a lot of choices out there when choosing a certified installer – we hope you choose us! Protect your home and health from mold and mildew invaders. In our 28 years of experience, we have never encountered a wet basement, crawlspace encapsulation or mold removal condition that we couldn’t handle. Give us a call today for a free, no obligation inspection and professional basement waterproofing system tailored for your home or commercial project. AA Action Waterproofing is licensed, insured and bonded with a A+ Rating with the BBB. Please call us and we’ll happily supply you with references.
"Our 25+ year-old French drain system in our 100-year-old basement was showing signs of failure, so we contacted several companies to get advice on what to do. Jason of AA Action was very professional and helpful when he performed his initial inspection of our basement, and had very good ideas on what needed to be done. The price he quoted for the work was also, based on what we had read, reasonable. We ended up going with another company recommended by Angi, but only because it brought up a couple of options that we had not thought of, and we felt comfortable with them doing the extra work. We were not at all unhappy with AA Action's suggestions or pricing - it's just that the other company's additional ideas made sense for our circumstances."
John A on June 2024

Best Buy Waterproofing, LLC
Best Buy Waterproofing, LLC
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!
"Dan was highly professional and offered an excellent evaluation of my needs. He actually went into the crawl space to better understand my needs. A good neighbor and a person to know. Thank you."
Arsalan S on November 2024
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!
"Dan was highly professional and offered an excellent evaluation of my needs. He actually went into the crawl space to better understand my needs. A good neighbor and a person to know. Thank you."
Arsalan S on November 2024

HED Construction LLC
HED Construction LLC
. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"He was great to work with. He gave a reasonable offer for the work and completed it timely while addressing all of my concerns. I would definitely hire him again."
Donna L on August 2024
. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"He was great to work with. He gave a reasonable offer for the work and completed it timely while addressing all of my concerns. I would definitely hire him again."
Donna L on August 2024

Detailz Construction Corporation, LLC
Detailz Construction Corporation, LLC
Detailz Construction Corporation is a full service, licensed and insured MHIC & EPA certified Residential & Commercial construction company which has been serving Maryland since 2004. Detailz has gained a fantastic reputation as one of the best construction companies in the Baltimore Metro area. Our team walks all of our customers through every phase of a project from start to finish. Detailz Construction provides a multitude of services including patios, pavers, basement site work, masonry, concrete, hardscapes, foundations, retaining walls, insurance restorations and so much more. Our dedicated teams help our customers design or create a space thats comfortable, relaxing and proud to call home. Why Choose Us: Established " Highly trained staff " Aggressive pricing " 1000 + satisfied customers " Licensed and insurance MHIC holder " Passionate about what we do " Reliable, we do what we say we'll do
"Very responsive"
David M on June 2019
Detailz Construction Corporation is a full service, licensed and insured MHIC & EPA certified Residential & Commercial construction company which has been serving Maryland since 2004. Detailz has gained a fantastic reputation as one of the best construction companies in the Baltimore Metro area. Our team walks all of our customers through every phase of a project from start to finish. Detailz Construction provides a multitude of services including patios, pavers, basement site work, masonry, concrete, hardscapes, foundations, retaining walls, insurance restorations and so much more. Our dedicated teams help our customers design or create a space thats comfortable, relaxing and proud to call home. Why Choose Us: Established " Highly trained staff " Aggressive pricing " 1000 + satisfied customers " Licensed and insurance MHIC holder " Passionate about what we do " Reliable, we do what we say we'll do
"Very responsive"
David M on June 2019
FAQs for basement waterproofing projects in Baltimore, MD
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
You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home.
However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.
Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.
Several factors dictate if you should waterproof the interior or exterior of your basement. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor.
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.
The Baltimore, MD homeowners’ guide to basement waterproofing services
From average costs to expert advice, get all the answers you need to get your job done.
Sump pump replacement costs depend on the type of unit you have and the cost of labor, which varies by region. Read on to find out more about what to expect.
Sump pumps are a must for homeowners who live in flood zones. Find out how much sump pump installation costs based on type, location, and features.
Need to fix basement water problems or safeguard your home from damage in the future? Use this basement waterproofing cost guide to budget appropriately.
Waterproofing your basement is important to protect your home. Follow these tips to ensure that you hire the right waterproofing contractor for the job.
Crawl space encapsulation can make a big difference if you’re experiencing issues with mold, mildew, and pests. Here’s what you need to know.
Wondering how you can make a flood-proof house? We’ve got 10 essential tips to prepare and protect you in case of flooding following severe weather.
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- 🌱 "Mow a small front yard"
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