4.2 
208 The team at Louise August was all around great. The workers were efficient and produced a high quality of work. The customer service was fantastic. Within 5 days of first reaching out the entire work which included roof work, gutter repairs and basement waterproofing were all complete and...
Louise AugustThey were, to the person, very professional and easy to work with. I had always been very suspicious of waterproofers, but All Aspects made us a very clear proposal, told us what we needed to do and, most importantly, what we didn't need to do. They worked with us on the best price for what...
All Aspects WaterproofingLofft made the basement and garage of our 1920s townhouse go from a dank, dreary place worthy of only storing junk into a lovely, sophisticated living and entertainment suite that we are happy to show off to friends and family. The project included replacing old low-hanging pipes and moving...
Lofft Construction IncIt went great! Could not be more pleased with this small business! Jay came out and gave me a quote for getting a sump pump installed to deal with a leak coming into the basement down an old, no longer used (addition built on top of it) staircase. He gave me a fair quote for the work...
Armored Basement WaterproofingWas not impressed. I contacted the company to have someone come out and provide me an estimate for waterproofing my basement/repairing my wall from recent water leaking into the basement. The whole point was that water was coming in - it's usually helpful to be able to show someone while...
Renaissance Development LLCI ended up getting a refund because they were not able to provide the design for my basement because of the way it was set up.
Premier HomeProDespite some early problems, the project went very well. JHI came in, dug out and waterproofed my front wall, and replaced the dirt in a single day. I inspected the work afterwards and I couldn't even tell the ground had been disturbed. It was incredible. DC experienced some very heavy...
The experience went very well. I called the company fairly late in the day (I think it was a Monday) after being stood up by another company that I had an appointment with. I really needed to get my basement cleaned out before the weekend. Because it was so late, I expected to have to leave...
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.
"Great job, professional all the way, terrific crew that paid attention to detail. Will use again."
Jack P on August 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.
"Great job, professional all the way, terrific crew that paid attention to detail. Will use again."
Jack P on August 2025
Drainage & Erosion Solutions (DES) is an award-winning design-build firm specializing in diagnosing and resolving drainage and erosion issues for residential and commercial properties. With both engineering and contracting divisions, we deliver professionally engineered solutions that are as functional as they are aesthetically pleasing. Our team is composed of dedicated, full-time professionals known for their technical expertise, attention to detail, and commitment to exceptional customer service. All consultations, assessments, and installations are performed by licensed experts—including soils engineers and landscape and drainage system designers—who bring decades of combined experience in design and construction. Clients trust DES for our reliability and results, leading to a strong referral-based business and consistently high rankings on contractor-rating platforms.
"I highly recommend DES! I arranged a consultation after a home inspection report indicated that there was moisture in our basement walls. I was worried that costly mitigation efforts would be required. A friend who had previously used DES for a basement water problem highly recommend them, telling us that they were an honest company that only does what is necessary to solve a problem. Happily, Mark Fine from DES inspected both our basement and our exterior grounds and reported that there was no indication of cracks in the foundation or water intrusion, and that no work needed to be done. It is so refreshing to have a company that doesn't try to sell expensive services when they are not necessary!"
Brian E on October 2025
Drainage & Erosion Solutions (DES) is an award-winning design-build firm specializing in diagnosing and resolving drainage and erosion issues for residential and commercial properties. With both engineering and contracting divisions, we deliver professionally engineered solutions that are as functional as they are aesthetically pleasing. Our team is composed of dedicated, full-time professionals known for their technical expertise, attention to detail, and commitment to exceptional customer service. All consultations, assessments, and installations are performed by licensed experts—including soils engineers and landscape and drainage system designers—who bring decades of combined experience in design and construction. Clients trust DES for our reliability and results, leading to a strong referral-based business and consistently high rankings on contractor-rating platforms.
"I highly recommend DES! I arranged a consultation after a home inspection report indicated that there was moisture in our basement walls. I was worried that costly mitigation efforts would be required. A friend who had previously used DES for a basement water problem highly recommend them, telling us that they were an honest company that only does what is necessary to solve a problem. Happily, Mark Fine from DES inspected both our basement and our exterior grounds and reported that there was no indication of cracks in the foundation or water intrusion, and that no work needed to be done. It is so refreshing to have a company that doesn't try to sell expensive services when they are not necessary!"
Brian E on October 2025
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
Right Stone Masonry takes pride in helping residential, commercial, and industrial property owners maintain safety, preserve character, and repair masonry structures, whether You want to keep Your building in great condition or achieve a new vision entirely.
"James and his team showed an interest in protecting my home. They provided prompt and courteous service while producing results of the highest quality."
Sean C on July 2025
Right Stone Masonry takes pride in helping residential, commercial, and industrial property owners maintain safety, preserve character, and repair masonry structures, whether You want to keep Your building in great condition or achieve a new vision entirely.
"James and his team showed an interest in protecting my home. They provided prompt and courteous service while producing results of the highest quality."
Sean C on July 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
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
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
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)
"The contractors from JES Foundation Repair did outstanding work on my project. The worked that was to be performed .was explained step by step. It was explained so I understood what was to be done. I was also given instructions as to what to do if a problem occurred after job completion. I was very proud of their work ethics and great attitude."
Kathleen B 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)
"The contractors from JES Foundation Repair did outstanding work on my project. The worked that was to be performed .was explained step by step. It was explained so I understood what was to be done. I was also given instructions as to what to do if a problem occurred after job completion. I was very proud of their work ethics and great attitude."
Kathleen B on August 2025
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
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
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!
"They have two owners. The first one handled the business aspect, the 2nd owner handled the communication aspect and he handled it perfectly. Overall the team work of the company was excellent. The patio which they did turned out wonderful and we have envious neighbors who want to use the same company. "
Jackie C on September 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!
"They have two owners. The first one handled the business aspect, the 2nd owner handled the communication aspect and he handled it perfectly. Overall the team work of the company was excellent. The patio which they did turned out wonderful and we have envious neighbors who want to use the same company. "
Jackie C on September 2025
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.
Need to fix basement water problems or safeguard your home from damage in the future? Use this basement waterproofing cost guide to budget appropriately.
A variety of factors can affect your total crawl space encapsulation cost. Here’s a breakdown of the cost of this project, whether you hire a pro or DIY.
If your home's crawlspace has water issues, here are the crawlspace encapsulation questions you should be asking a contractor about the project.
Is basement waterproofing worth it even if you’re experiencing some or no water-related issues? Find out more about this preventive measure here.
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.
