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    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Timonium

Avatar for JES Foundation Repair

JES Foundation Repair

3.33(
18
)
Approved Pro

JES Foundation Repair

3.33(
18
)
Approved Pro
34 local quotes requested
32 years of experience

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)

"I hired JES to install a trench and sump system into the basement of a new house I purchased. After the job was completed, I noticed the cellar stairwell was pooling water. They returned and said that they didn't think that the drain was run direct to the sump as it should have been but they needed to open the concrete to verify. I also asked why there was no water in the sumps. They ran tests with water for 2 hours and didn't see water and tried to explain to me that it was expected since the water was running out around the drainage under the foundation. They even had a supervisor try to explain to me over the phone when I questioned it. It took them several weeks to return to fix the cellar drain and sure enough, the pipe was just run to under the foundation and not directed into the trench/sump. A repair team came out and busted up the concrete to correct it. In doing so, they saw that their trench was also not connected to the sumps at all, which is why I never saw water in the sumps and not the mysterious theory they tried to convince me of weeks prior. This is terrible that there is no inspection of work prior to covering it totally with concrete. Or further, there was no physical test of running water in the system to verify the sump works. The repair team that came out were wonderful and did everything correct. After this, I called 3 times and asked for a manager to call me to discuss this and never received a response. The salesman stopped answering my calls. As a note, after spending $30K on this upgrade to my house, it was in worse risk than prior to JES so if you choose them, be careful."

Rob S 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)

"I hired JES to install a trench and sump system into the basement of a new house I purchased. After the job was completed, I noticed the cellar stairwell was pooling water. They returned and said that they didn't think that the drain was run direct to the sump as it should have been but they needed to open the concrete to verify. I also asked why there was no water in the sumps. They ran tests with water for 2 hours and didn't see water and tried to explain to me that it was expected since the water was running out around the drainage under the foundation. They even had a supervisor try to explain to me over the phone when I questioned it. It took them several weeks to return to fix the cellar drain and sure enough, the pipe was just run to under the foundation and not directed into the trench/sump. A repair team came out and busted up the concrete to correct it. In doing so, they saw that their trench was also not connected to the sumps at all, which is why I never saw water in the sumps and not the mysterious theory they tried to convince me of weeks prior. This is terrible that there is no inspection of work prior to covering it totally with concrete. Or further, there was no physical test of running water in the system to verify the sump works. The repair team that came out were wonderful and did everything correct. After this, I called 3 times and asked for a manager to call me to discuss this and never received a response. The salesman stopped answering my calls. As a note, after spending $30K on this upgrade to my house, it was in worse risk than prior to JES so if you choose them, be careful."

Rob S on October 2025


Avatar for Brother's Waterproofing, LLC

Brother's Waterproofing, LLC

4.94(
36
)
Approved Pro

Brother's Waterproofing, LLC

4.94(
36
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

Brother's Waterproofing, LLC, is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have the experience to provide innovative ideas and suggestions tailored to your projects. With over 60 years of combined Experience, our Sub Floor Water management system is customized to your foundation needs, paying close attention to the details of each project that we are involved with and always using the most technological system on the market. Please feel free to contact us today!

"Great customer service from beginning to end. The work was started and completed on time. The attention to detail is immaculate. I plan to hire for future projects."

Kia G on May 2024

Brother's Waterproofing, LLC, is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have the experience to provide innovative ideas and suggestions tailored to your projects. With over 60 years of combined Experience, our Sub Floor Water management system is customized to your foundation needs, paying close attention to the details of each project that we are involved with and always using the most technological system on the market. Please feel free to contact us today!

"Great customer service from beginning to end. The work was started and completed on time. The attention to detail is immaculate. I plan to hire for future projects."

Kia G on May 2024


Avatar for Detailz Construction Corporation, LLC

Detailz Construction Corporation, LLC

4.59(
33
)
Approved Pro

Detailz Construction Corporation, LLC

4.59(
33
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
19 years of experience

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


Avatar for AFFORDABLEBASEMENTWATERPROOFING.COM INC

AFFORDABLEBASEMENTWATERPROOFING.COM INC

4.26(
78
)
Approved Pro

AFFORDABLEBASEMENTWATERPROOFING.COM INC

4.26(
78
)
Approved Pro
Customers say: Quality work
25 years of experience
Free onsite estimate

With over 20+ years in business and a combined 100+ years in experience, we strive to be the best in our industry. We offer a variety of basement and crawlspace solutions including Interior Drain-Tile Sub-Floor Drainage Systems, Exterior Foundation Excavations, Sump Pumps, Battery Backup Systems, Crack Repairs, Landscaping Drainage Solutions, , Crawlspace waterproofing Encapsulation and much more. Call us today for a FREE ESTIMATE! "We are here to help you weather the storm". We Service all of Maryland and Delaware shore. we also specialize in foundation repair shifting walls foundation cracking house settling wall replacement carbon fiber and much more call today 1800-679-6513 inspection and estimate are free 0 down 100% financing available some of our customers have said they saved as much as 20% where here to solve big problems with simple solutions additional discounts during dry spells don't wait till heavy rains and flooding call now 1800-679-6513

"Travis and his team did an amazing job!"

Brittany F on February 2022

With over 20+ years in business and a combined 100+ years in experience, we strive to be the best in our industry. We offer a variety of basement and crawlspace solutions including Interior Drain-Tile Sub-Floor Drainage Systems, Exterior Foundation Excavations, Sump Pumps, Battery Backup Systems, Crack Repairs, Landscaping Drainage Solutions, , Crawlspace waterproofing Encapsulation and much more. Call us today for a FREE ESTIMATE! "We are here to help you weather the storm". We Service all of Maryland and Delaware shore. we also specialize in foundation repair shifting walls foundation cracking house settling wall replacement carbon fiber and much more call today 1800-679-6513 inspection and estimate are free 0 down 100% financing available some of our customers have said they saved as much as 20% where here to solve big problems with simple solutions additional discounts during dry spells don't wait till heavy rains and flooding call now 1800-679-6513

"Travis and his team did an amazing job!"

Brittany F on February 2022


Avatar for Tru Integrity, LLC

Tru Integrity, LLC

4.94(
90
)
Approved Pro

Tru Integrity, LLC

4.94(
90
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
37 local quotes requested

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.

"I had spoken to several contractors, Mr. Matthews took the time to explain the entire process of what was needed and why this option would be better than the prior. He was the ONLY contractor to show me his license and make me feel comfortable with all he explained and made sure I understood all that was needed. I appreciate all the time he gave me and the great work his crew did to get my foundation fixed and drainage issue fixed!! Thanks! Sara"

Sara S on August 2025

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.

"I had spoken to several contractors, Mr. Matthews took the time to explain the entire process of what was needed and why this option would be better than the prior. He was the ONLY contractor to show me his license and make me feel comfortable with all he explained and made sure I understood all that was needed. I appreciate all the time he gave me and the great work his crew did to get my foundation fixed and drainage issue fixed!! Thanks! Sara"

Sara S on August 2025


Avatar for Armored Basement Waterproofing, LLC

Armored Basement Waterproofing, LLC

5.00(
3
)
Approved Pro

Armored Basement Waterproofing, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Our priority is an honest, quality waterproofing solution. We begin with a transparent problem assessment followed by a superior quality installation. We will continue to be Family owned, Family operated, and we will always treat our customers as our own Family. We have zero salesmen on staff and you have zero sales pressure in your home. Call us today for a no pressure inspection at 443-949-3180.

"From the beginning of the inital contacts with Gary, Tara, Chris and their team, to the completion of the project, Armored Basement Waterproofing,LLC has shown , in our experience, to be a very reliable company. They are client and service oriented; professional; informative in identifying and explaining the problem and solution; prompt; affordable."

Michael K on April 2023

Our priority is an honest, quality waterproofing solution. We begin with a transparent problem assessment followed by a superior quality installation. We will continue to be Family owned, Family operated, and we will always treat our customers as our own Family. We have zero salesmen on staff and you have zero sales pressure in your home. Call us today for a no pressure inspection at 443-949-3180.

"From the beginning of the inital contacts with Gary, Tara, Chris and their team, to the completion of the project, Armored Basement Waterproofing,LLC has shown , in our experience, to be a very reliable company. They are client and service oriented; professional; informative in identifying and explaining the problem and solution; prompt; affordable."

Michael K on April 2023


Avatar for MD Waterproofing & Radon Reduction, Inc.

MD Waterproofing & Radon Reduction, Inc.

4.26(
94
)
Approved Pro

MD Waterproofing & Radon Reduction, Inc.

4.26(
94
)
Approved Pro
Customers say: True professional
47 local quotes requested
34 years of experience

We proudly present to you MD Waterproofing & Radon Reduction, Inc. We have experience providing basement waterproof systems and foundation waterproofing solutions for homeowners, realtors and commercial property management teams for over 20 years. Our team of experts at MD Waterproofing have never encountered a wet basement or crawl space condition that wasn't capable of being solved. We're committed to providing quality workmanship and we work hard to give you affordable solutions. Call us today!

"Very satisfied with work done Angie too pricey for me."

Patricia P on July 2024

We proudly present to you MD Waterproofing & Radon Reduction, Inc. We have experience providing basement waterproof systems and foundation waterproofing solutions for homeowners, realtors and commercial property management teams for over 20 years. Our team of experts at MD Waterproofing have never encountered a wet basement or crawl space condition that wasn't capable of being solved. We're committed to providing quality workmanship and we work hard to give you affordable solutions. Call us today!

"Very satisfied with work done Angie too pricey for me."

Patricia P on July 2024


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
79 local quotes requested

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


"Excellent customer service. Quick response. Friendly provider. Knowledgeable staff. Helped with our issue quickly and did not try to sell us something that wasn’t needed. Didn’t charge a fee since our issue required a simple fix, that we could do ourselves. Told us the supplies to buy and how to fix. I would highly recommend. And will contact again for any related issues. Thank you Always Waterproofing. "

Kari R on November 2025

Always Waterproofing has 35 years of experience in the industry. We are locally owned and operated. If you want the job right the first time, call James today!

"Excellent customer service. Quick response. Friendly provider. Knowledgeable staff. Helped with our issue quickly and did not try to sell us something that wasn’t needed. Didn’t charge a fee since our issue required a simple fix, that we could do ourselves. Told us the supplies to buy and how to fix. I would highly recommend. And will contact again for any related issues. Thank you Always Waterproofing. "

Kari R on November 2025


Avatar for Basement Gurus, LLC

Basement Gurus, LLC

4.84(
150
)
Approved Pro

Basement Gurus, LLC

4.84(
150
)
Approved Pro
Super Service Award
Customers say: Quality work
949 local quotes requested
15 years of experience

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!

"Steven was very nice and easy to do business with very honest and gave me all kinds of options. Hard to find people like that nowadays just overall great quality people"

Derek K on October 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!

"Steven was very nice and easy to do business with very honest and gave me all kinds of options. Hard to find people like that nowadays just overall great quality people"

Derek K on October 2025

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Basement Waterproofing questions, answered by experts

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

The first step to preventing foundation cracks is to repair any current ones. When one crack forms, it becomes more likely that a second crack will follow. A few other tips include performing regular foundation checks, cleaning spouts and gutters, and installing exterior drains if needed. For those living in a hot and arid area, you should water your foundation every other day.

The most challenging part of finishing a basement is addressing moisture control. Basement waterproofing is an essential task that requires a professional’s skills and knowledge. If you don’t properly waterproof your finished basement, it’ll be vulnerable to dampness, water damage, and mold growth. Ensuring proper insulation and ventilation to combat these issues while meeting building codes adds complexity to your remodeling project.

No, everything doesn’t get wet if the bathroom is well-designed and the fixtures are properly installed. It’s important that the floor of a wet room drains correctly, and proper waterproofing and slip-resistant flooring are used to avoid creating slipping hazards. Since the shower isn’t housed in an enclosed space, you’ll need to make sure the towel rack and toilet paper holder are placed in areas where they won’t get wet.

While it’s possible to seal a foundation yourself, it’s not recommended, as it’s a tricky and labor-intensive job. Foundation sealing is best left to the pros to save yourself time, remove the risk of doing it wrong, and keeping yourself safe. Call a foundation repair professional near you to see what the job will cost.

The Timonium, MD homeowners’ guide to basement waterproofing services

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.
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