Do not use AquaGuard Waterproofing. We contacted AquaGuard for a water problem in the basement. We thought the source of the leak was a foundation crack. We have lived in our home for 22 years and have only had 1 issue with water which was a foundation crack. The first foundation crack...

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There are 7 highly-rated local basement leak repair pros.
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TRUSTED BY LEWES, DE HOMEOWNERS
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Average homeowner rating99
Verified basement leak repair services reviews
Basement Leak Repair reviews from real Angi homeowners in Lewes, DE
Last update on October 14, 2025
- Kim G.
- Myriam C.
Right on on the issues. A leaked in a room was the outer hose connection and he was correct on his assessment.
- Pamela W.
We have had a number of very heavy rains since the work was done and I have had no water in the basement. So I am very pleased with the outcome.
- Thomas G.
We were new the area and found that our new house had a leaking toilet and an unrelated burst pipe when we moved in. We used Mike Leonard on a recommendation from our realtor and were impressed. Prompt repair, still working well after 16 months. He also found us a repairman to fix the ceramic...
- Erich C.
It went very well. The source of the leak was identified, and Steve also checked all the other ceilings for dampness, and found none. Within 15 minutes after he left the house, we had a detailed estimate via e-mail, and although it was intermittently rainy, the repair team arrived a couple...
- Linda C.
I expected that with a full schedule, the most Tony would be able to do would be a quick assessment and perhaps an agreement to come back the next day. However, by the time I arrived home at 6:00 pm, Tony was finishing up the job. He went way above and beyond, as he literally had to dig...
- D B.
It took several calls to their office to reach an individual to schedule an individual to evaluate our basement. Once we got the appointment scheduled everything was done in a concise professional manner. The technician showed up on time, and as requested, checked the entire basement to...
- Robin M.
I found a water line leak in my basement Wednesday evening. I immediately looked on Angie's List to determine which Plumber I should call. Based on other members posting excellent reviews for K.B.'S Plumbing, I phoned their office Thursday morning around 8:00. A live woman answered after a...
Find Basement leak repair pros in Lewes

R.A BARKER
R.A BARKER
R a Barker general contractor home remodeling. We offer everything from the ground up foundations, concrete, framing, siding, roofing, windows all interior work drywall, painting, trim, full kitchens, bathrooms additions to small handyman services. We want to provide quality services at a fair prices we sell products and services that home owners want or need nothing they dont. We have been servicing the area for more then 18 years owner operated small business
"It was completed on time and beautifully"
Danielle L on February 2023
R a Barker general contractor home remodeling. We offer everything from the ground up foundations, concrete, framing, siding, roofing, windows all interior work drywall, painting, trim, full kitchens, bathrooms additions to small handyman services. We want to provide quality services at a fair prices we sell products and services that home owners want or need nothing they dont. We have been servicing the area for more then 18 years owner operated small business
"It was completed on time and beautifully"
Danielle L on February 2023

Clarksville Construction Services, Inc.
Clarksville Construction Services, Inc.
With over 25 years of turn-key home remodeling experience, Clarksville Construction specializes in major additions, kitchen remodeling, bathroom remodeling, basement remodeling, roofing, storm damage, decks, patios, windows, doors, carpentry, flooring, and painting for the interior or exterior of your home. Measuring performance by the long-term happiness of their clients. Clarksville Construction fosters a culture of transparency, partnership, passion, and hard work. Since 1999, they have continued to grow while staying true to their original mission: To Provide Outstanding Work Above And Beyond Your Expectations And To Make Every Customer A Customer For Life. Serving Eastern Shores – there is no job too big or too small!
"We recently hired Clarksville Construction to handle a remodel of our master bathroom. Our sales rep, Keith, spent a great deal of time with us working through the changes we wanted made, offered helpful suggestions and worked toward arranging the specific time frame we needed to have the project done. Our project manager, Gene, made sure the project started on the day requested and kept progress moving forward so that everything would be completed timely. Madelin in the back office was very helpful in getting the specific items we wanted ordered and Patrick made daily (sometimes multiple) trips to the house delivering any materials the crew needed to get the job done – always with a smile on his face. Francesco had his crew arrive on time (if not early) every day they were scheduled to come by; and he made sure any corrections that needed to be done were taken care of. All projects have challenges, ours was no different. But the real difference was how quickly any question or concerns we raised were addressed and resolved. We have done similar projects like this in the past and have at times faced pushback and argument when problems arose. Not with the team at Clarksville. They were committed to making sure we were happy with the end result. What a refreshing attitude and much appreciated!"
Janet C on February 2024
With over 25 years of turn-key home remodeling experience, Clarksville Construction specializes in major additions, kitchen remodeling, bathroom remodeling, basement remodeling, roofing, storm damage, decks, patios, windows, doors, carpentry, flooring, and painting for the interior or exterior of your home. Measuring performance by the long-term happiness of their clients. Clarksville Construction fosters a culture of transparency, partnership, passion, and hard work. Since 1999, they have continued to grow while staying true to their original mission: To Provide Outstanding Work Above And Beyond Your Expectations And To Make Every Customer A Customer For Life. Serving Eastern Shores – there is no job too big or too small!
"We recently hired Clarksville Construction to handle a remodel of our master bathroom. Our sales rep, Keith, spent a great deal of time with us working through the changes we wanted made, offered helpful suggestions and worked toward arranging the specific time frame we needed to have the project done. Our project manager, Gene, made sure the project started on the day requested and kept progress moving forward so that everything would be completed timely. Madelin in the back office was very helpful in getting the specific items we wanted ordered and Patrick made daily (sometimes multiple) trips to the house delivering any materials the crew needed to get the job done – always with a smile on his face. Francesco had his crew arrive on time (if not early) every day they were scheduled to come by; and he made sure any corrections that needed to be done were taken care of. All projects have challenges, ours was no different. But the real difference was how quickly any question or concerns we raised were addressed and resolved. We have done similar projects like this in the past and have at times faced pushback and argument when problems arose. Not with the team at Clarksville. They were committed to making sure we were happy with the end result. What a refreshing attitude and much appreciated!"
Janet C on February 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
Diamond Contractors and Renovators
Diamond Contractors and Renovators
We are a full service remodeling contractor for over 40 years. We are fully Licensed Bonded and Insured
"Crew were professional and got the job fine on schedule. Took direction and changed in stride. Finish work good but not perfect."
Paul S on January 2024
We are a full service remodeling contractor for over 40 years. We are fully Licensed Bonded and Insured
"Crew were professional and got the job fine on schedule. Took direction and changed in stride. Finish work good but not perfect."
Paul S on January 2024

RPM Construction / Property Management, LLC
RPM Construction / Property Management, LLC
RPM Construction / Property Management, LLC is your local home renovation, Remodeling and Property Management Company servicing the greater beach areas of Southern Delaware! We proudly offer our customer's a wide range of services, from bimonthly off season house checks to extensive home renovation projects. Our company prides itself on the key connections we have made with the country's leading home product suppliers, such as James Hardie, WOLF Home Products, & AZEK Building Products, Versetta Stone and more importantly, the relationship we have built with local contractors and businesses. It is important to know that all work is invoiced to our customers on a time and materials basis. Our key staff have an ownership stake in our company’s performance and your complete satisfaction. No hidden charges. It’s that simple. Interested in the RPM Team transforming your property? Contact us today for a no cost, at home consultation and come experience the Roberts' difference today! Preferred to receive inquiries through email.
"Dave was the first one to contact me from my Angie inquiry. He heard what I needed - connected me to one of his men - and within 24 hrs my deck door was fixed. I highly recommend RPM & will absolutely use them for future home repair needs."
Kimberlee G on August 2023
RPM Construction / Property Management, LLC is your local home renovation, Remodeling and Property Management Company servicing the greater beach areas of Southern Delaware! We proudly offer our customer's a wide range of services, from bimonthly off season house checks to extensive home renovation projects. Our company prides itself on the key connections we have made with the country's leading home product suppliers, such as James Hardie, WOLF Home Products, & AZEK Building Products, Versetta Stone and more importantly, the relationship we have built with local contractors and businesses. It is important to know that all work is invoiced to our customers on a time and materials basis. Our key staff have an ownership stake in our company’s performance and your complete satisfaction. No hidden charges. It’s that simple. Interested in the RPM Team transforming your property? Contact us today for a no cost, at home consultation and come experience the Roberts' difference today! Preferred to receive inquiries through email.
"Dave was the first one to contact me from my Angie inquiry. He heard what I needed - connected me to one of his men - and within 24 hrs my deck door was fixed. I highly recommend RPM & will absolutely use them for future home repair needs."
Kimberlee G on August 2023

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

Biosphere Remediation LLC
Biosphere Remediation LLC
Contact us at 302-841-5661 Biosphere Remediation provides complete Water Intrusion evaluations, Water/Fire Mitigation & Restoration. We are a full service Mold Remediation company and provide testing via independent labs. We specialize in structural and crawlspace mold issues as well as crawlspace encapsulations. We have a full line of contractors and offer restoration services ranging from roofs, siding, windows and doors, framing, drywall, paint, trim and flooring, including tile work. We provide emergency Crime Scene cleaning, including murders, suicides and unattended deaths along with biohazard disposal. We offer a variety of realtor focused services including contents clean outs, hoarding situations, sanitizing, odor abatement, storm damage and other services to prep a property for sale. Emergency and off hours services are provided based upon availability. We also work with Insurance companies to help with coverage where needed.
"Chris and his team were excellent. Reliable, knowledgeable, courteous, clean, cost efficient, timely. I would highly recommend them to anyone in need of mold removal. Absolutely fantastic company!"
Anthony G on February 2024
Contact us at 302-841-5661 Biosphere Remediation provides complete Water Intrusion evaluations, Water/Fire Mitigation & Restoration. We are a full service Mold Remediation company and provide testing via independent labs. We specialize in structural and crawlspace mold issues as well as crawlspace encapsulations. We have a full line of contractors and offer restoration services ranging from roofs, siding, windows and doors, framing, drywall, paint, trim and flooring, including tile work. We provide emergency Crime Scene cleaning, including murders, suicides and unattended deaths along with biohazard disposal. We offer a variety of realtor focused services including contents clean outs, hoarding situations, sanitizing, odor abatement, storm damage and other services to prep a property for sale. Emergency and off hours services are provided based upon availability. We also work with Insurance companies to help with coverage where needed.
"Chris and his team were excellent. Reliable, knowledgeable, courteous, clean, cost efficient, timely. I would highly recommend them to anyone in need of mold removal. Absolutely fantastic company!"
Anthony G on February 2024

AVG Waterproofing
AVG Waterproofing
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
Coastal Home Improvements
Coastal Home Improvements
we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers 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.
we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers 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.

DryZone, LLC
DryZone, LLC
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
FAQs for basement leak repair projects in Lewes, DE
The cost to finish a basement is $18,400 for the average homeowner. However, this cost could be as little as $2,800 or as much as $34,500, depending on the basement size and the materials needed. If your basement is already outfitted with electrical and plumbing, expect the cost to fall on the lower end.
For example, the drywall cost for this project averages around $1,750, but other features, like hiring a plumber, cost between $45 and $200 per hour.
The cost to remodel a basement is between $12,100 and $33,400 for the average homeowner. The price you pay can be as little as $3,500 or as much as $50,200, depending on the size and condition of your basement and the type of remodel you're doing.
If you're doing a simple project like adding a home office to your basement, you can expect to pay anywhere from $500 to $3,000. However, if you're adding a bathroom, which is an extensive project, you can expect to pay between $6,600 to $16,500.
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.
Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms.
Finishing a basement is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.
Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.
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 Lewes, DE homeowners’ guide to basement leak repair services
From average costs to expert advice, get all the answers you need to get your job done.
A basement bar can add value to your home and serve as a great place to entertain. Use this guide on the cost to build a bar in your basement to get started.
Sump pump battery backup costs depend on the type and the design of the system purchased. Follow this guide to learn how to budget for your backup battery.
When storm season is approaching, ensure you’re ready to go in case of an emergency. Explore our guide to budgeting for bulkhead replacement costs.
A basement offers additional living or storage space, but if it leaks, it can become a significant headache. Learn how to fix a leaky basement and prevent water damage.
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