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Find Foundation, basement or crawlspace waterproofing / encapsulation pros in Wilmington

Avatar for Advanced Basement Professionals

Advanced Basement Professionals

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Advanced Basement Professionals

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
6 years of experience
Free onsite estimate

Advanced Basement Professionals, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Advanced Basement Professionals, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Avatar for Groundworks

Groundworks

4.39(
99
)
•Approved Pro

Groundworks

4.39(
99
)
•Approved Pro
Customers say: Super punctual
309 local quotes requested
29 years of experience

Groundworks employs patented solutions to target foundation, basement, concrete, and crawl space challenges at their source. Our customized repairs safeguard homes in Philidelphia, enhancing safety, appearance, and value.

"Great Job. Very professional."

Richard A on March 2025

Groundworks employs patented solutions to target foundation, basement, concrete, and crawl space challenges at their source. Our customized repairs safeguard homes in Philidelphia, enhancing safety, appearance, and value.

"Great Job. Very professional."

Richard A on March 2025

Avatar for DryZone, LLC

DryZone, LLC

3.88(
4
)
•Approved Pro

DryZone, LLC

3.88(
4
)
•Approved Pro
20 years of experience
Free onsite estimate

Welcome to DryZone. LLC! Here at DryZone. LLC, we pride ourselves in not only completing every project to perfection, but creating lasting client relationships in the process. Our motto is "Protect your Investment", and we firmly stand by it. With every project we are given to complete, we promise to treat your home as if it were our own! At DryZone. LLC, extraordinary is the expectation. Give DryZone. LLC a call today, we look forward to earning your business.

"They don't honor their work, and wont come back to fix the faulty system"

Pearl C on August 2020

Welcome to DryZone. LLC! Here at DryZone. LLC, we pride ourselves in not only completing every project to perfection, but creating lasting client relationships in the process. Our motto is "Protect your Investment", and we firmly stand by it. With every project we are given to complete, we promise to treat your home as if it were our own! At DryZone. LLC, extraordinary is the expectation. Give DryZone. LLC a call today, we look forward to earning your business.

"They don't honor their work, and wont come back to fix the faulty system"

Pearl C on August 2020

Avatar for AVG Waterproofing

AVG Waterproofing

4.66(
16
)
•Approved Pro

AVG Waterproofing

4.66(
16
)
•Approved Pro
Customers say: Quality work
31 local quotes requested
11 years of experience

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.

"Great experience from the inspection of the issue, the estimate and the speed the job was scheduled and completed. Would (and already have) recommend to friends and clients (I'm a realtor). We had an engineer friend look at the solution Alex proposed for the job and he said this was the correct fix for the basement unlike a solution proposed my a different company. Thanks Alex!"

Leslie T on April 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.

"Great experience from the inspection of the issue, the estimate and the speed the job was scheduled and completed. Would (and already have) recommend to friends and clients (I'm a realtor). We had an engineer friend look at the solution Alex proposed for the job and he said this was the correct fix for the basement unlike a solution proposed my a different company. Thanks Alex!"

Leslie T on April 2025

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
29 local quotes requested
35 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 Groundworks

Groundworks

4.78(
179
)
•Approved Pro

Groundworks

4.78(
179
)
•Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
16 local quotes requested

Established in 2004, Groundworks is 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 New Jersey, we bring our local expertise closer to you. Groundworks 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 Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 13VH11822900 (NJ)

"Working with DJ from Groundworks (Select Basement) has been an outstanding experience. After struggling with various contractors who either failed to resolve our water issues or were unprofessional, DJ and his team truly stood out. DJ was incredibly helpful, patient, and responsive throughout the entire process. Our home is a ranch with 225 linear feet around the perimeter, and while other contractors insisted on installing a French drain for the entire length, DJ recommended a more targeted approach. He proposed installing the French drain for just 80 linear feet, focusing only on the areas where water intrusion was likely. His thorough explanations and prompt responses to all our questions were greatly appreciated. The workers arrived on time, maintained a clean work environment, and completed the job as promised. If we could give 10 stars, we would! Groundworks is a highly professional and honest company that didn't try to inflate the scope of work to charge us more. We wholeheartedly recommend them."

Elina B on October 2024

Established in 2004, Groundworks is 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 New Jersey, we bring our local expertise closer to you. Groundworks 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 Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 13VH11822900 (NJ)

"Working with DJ from Groundworks (Select Basement) has been an outstanding experience. After struggling with various contractors who either failed to resolve our water issues or were unprofessional, DJ and his team truly stood out. DJ was incredibly helpful, patient, and responsive throughout the entire process. Our home is a ranch with 225 linear feet around the perimeter, and while other contractors insisted on installing a French drain for the entire length, DJ recommended a more targeted approach. He proposed installing the French drain for just 80 linear feet, focusing only on the areas where water intrusion was likely. His thorough explanations and prompt responses to all our questions were greatly appreciated. The workers arrived on time, maintained a clean work environment, and completed the job as promised. If we could give 10 stars, we would! Groundworks is a highly professional and honest company that didn't try to inflate the scope of work to charge us more. We wholeheartedly recommend them."

Elina B on October 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
27 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

Avatar for Dry Tech Waterproofing Solutions

Dry Tech Waterproofing Solutions

4.66(
29
)
•Approved Pro

Dry Tech Waterproofing Solutions

4.66(
29
)
•Approved Pro
Customers say: Quality work
25 local quotes requested
19 years of experience

Our company was built on the foundation of trust, friendship and years of experience. We strive to maintain those same principles in all that we do. Whether it’s a damp basement, foundation issue or an unhealthy, moldy environment; we are here to help. We promise to lessen the stress of your basement or crawlspace troubles with our comprehensive water management, mold remediation and foundation repair solutions. We take great pride in our ability to transform your needs and expectations into a customized solution. With our quality workmanship being guaranteed, you’ll have one less thing to worry about. Call today for your free estimate!

"Dry Tech Waterproofing Solutions Not a stand up company. So much promise. The people were friendly, they got it done fast. At the time of write up, i told them the basement gets feet of water per day. I need a GOD level solution. Two sump wells were put in with a battery backup. The pumps ultimately failed due to a breaker tripping because they put two 10 amp pumps on a single circuit. The basement flooded since no one is actively living there to hear the backup pump kick on. This in turn fried the battery backup and the electrical components that were installed knee high. I try to leverage their warranty, and they wanted 300 dollars to replace a marine grade battery that got destroyed because the basement flooded and the backup wasn't waterproof. It isn't even water resistant. Its a plastic box that doesn't seal. Absolute garbage materials. The story changed from its the cost of the battery, to its the cost of the labor to fix what their warranty should have covered: A sub par in"

Google _ on January 2026

Our company was built on the foundation of trust, friendship and years of experience. We strive to maintain those same principles in all that we do. Whether it’s a damp basement, foundation issue or an unhealthy, moldy environment; we are here to help. We promise to lessen the stress of your basement or crawlspace troubles with our comprehensive water management, mold remediation and foundation repair solutions. We take great pride in our ability to transform your needs and expectations into a customized solution. With our quality workmanship being guaranteed, you’ll have one less thing to worry about. Call today for your free estimate!

"Dry Tech Waterproofing Solutions Not a stand up company. So much promise. The people were friendly, they got it done fast. At the time of write up, i told them the basement gets feet of water per day. I need a GOD level solution. Two sump wells were put in with a battery backup. The pumps ultimately failed due to a breaker tripping because they put two 10 amp pumps on a single circuit. The basement flooded since no one is actively living there to hear the backup pump kick on. This in turn fried the battery backup and the electrical components that were installed knee high. I try to leverage their warranty, and they wanted 300 dollars to replace a marine grade battery that got destroyed because the basement flooded and the backup wasn't waterproof. It isn't even water resistant. Its a plastic box that doesn't seal. Absolute garbage materials. The story changed from its the cost of the battery, to its the cost of the labor to fix what their warranty should have covered: A sub par in"

Google _ on January 2026

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
26 local quotes requested

Best Buy Waterproofing specializes in basement waterproofing, foundation repair, crawl space encapsulation, and mold remediation with over 30 years of proven expertise. Our certified team brings more than 60 years of combined experience and is committed to excellence with a “Whatever It Takes” approach. We’re licensed, bonded, insured, and certified—providing top-tier waterproofing backed by a comprehensive warranty on systems, pumps, and cutting-edge battery backups We offer free estimates and flexible financing options—ask about our financing plans today!

"Ed fixed the problem 2 thumbs up!"

Pete H on December 2025

Best Buy Waterproofing specializes in basement waterproofing, foundation repair, crawl space encapsulation, and mold remediation with over 30 years of proven expertise. Our certified team brings more than 60 years of combined experience and is committed to excellence with a “Whatever It Takes” approach. We’re licensed, bonded, insured, and certified—providing top-tier waterproofing backed by a comprehensive warranty on systems, pumps, and cutting-edge battery backups We offer free estimates and flexible financing options—ask about our financing plans today!

"Ed fixed the problem 2 thumbs up!"

Pete H on December 2025

Avatar for Groundworks

Groundworks

4.67(
258
)
•Approved Pro

Groundworks

4.67(
258
)
•Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
11 local quotes requested

Established in 1997, Groundworks is 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 Philadelphia & New Jersey, we bring our local expertise closer to you. Groundworks 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 Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! PA158514 (PA)

"JES Foundation Repair (A Groundworks Company) proposed a solution for my basement wall reinforcement, and waterproofing. I accepted, and a date was set. They did not show up and it took 8 phone calls and 24 hours to find out that they weren't confident in their proposal. They increased the scope and added 50% to the cost. Stupidly, I signed again as time was wasting and I didn't want to start over with new vendors. JES completed the work while I was out of town. When I got back, there had been heavy rain and there was more water in my basement then I had ever experienced. I contacted my rep via text (impossible to get through by phone as he always was in "Training" when I called). His response was " That doesn't look good, I'll make some calls". I had to make the calls. JES sent several new employees out and they proposed additional work at ADDITIONAL cost. Unable to get satisfaction from mgmt. Had another foundation company finish the job. Do not use!"

Jay R on January 2026

Established in 1997, Groundworks is 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 Philadelphia & New Jersey, we bring our local expertise closer to you. Groundworks 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 Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! PA158514 (PA)

"JES Foundation Repair (A Groundworks Company) proposed a solution for my basement wall reinforcement, and waterproofing. I accepted, and a date was set. They did not show up and it took 8 phone calls and 24 hours to find out that they weren't confident in their proposal. They increased the scope and added 50% to the cost. Stupidly, I signed again as time was wasting and I didn't want to start over with new vendors. JES completed the work while I was out of town. When I got back, there had been heavy rain and there was more water in my basement then I had ever experienced. I contacted my rep via text (impossible to get through by phone as he always was in "Training" when I called). His response was " That doesn't look good, I'll make some calls". I had to make the calls. JES sent several new employees out and they proposed additional work at ADDITIONAL cost. Unable to get satisfaction from mgmt. Had another foundation company finish the job. Do not use!"

Jay R on January 2026

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FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Wilmington, DE

The most affordable way to waterproof your basement is with interior methods like waterproof paint, costing between $1 and $8 per square foot, or silicate concrete sealers priced at $4 to $6 per square foot. However, these solutions are only suitable for certain issues. If your basement moisture is due to more serious problems like a cracked foundation, you'll need more extensive (and costly) repairs.

Absolutely! Waterproofing your basement is a smart investment that can increase your home's value. By keeping your basement dry and free of moisture problems, you protect your home's structural integrity and make it more appealing to potential buyers. Plus, taking proactive measures now can prevent costly water damage repairs down the line.

The time required to waterproof a basement depends on the selected method. Some approaches to interior waterproofing, like paint or sealant, can be completed within a day. Installing new drains or weeping tiles will need at least two to three days of labor. Any forms of exterior waterproofing that require you to excavate land will require an additional three days of work to prepare the ground.

Yes, basement waterproofing can significantly increase your home's value. A dry, leak-free basement is a strong selling point for potential buyers, enhancing your property's desirability and market price. Investing in professional waterproofing not only protects your home's structural integrity but also ensures a healthier living environment by preventing mold and mildew growth.

Waterproofing both the interior and exterior of your basement offers the best protection against moisture. Exterior waterproofing stops water from penetrating your foundation, while interior methods manage any moisture that does enter. If you must choose one, exterior waterproofing is generally more effective, as it prevents water from reaching your home's interior in the first place.

The Wilmington, DE homeowners’ guide to foundation, basement or crawlspace waterproofing / encapsulations

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

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