Get matched with top basement waterproofing pros in Clayton, DE

16 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!

"Josh, the representative from Basement Gurus was outstanding! We had experienced a water issue in our finished basement. Josh thoroughly examined the interior and exterior of the home and determined that the leak might be plumbing related. Josh could have very easily exploited our ignorance and suggested a solution purely beneficial to his company that may not have addressed the underlying cause of the problem. Instead, he demonstrated his integrity by realistically assessing the situation even if it would jeopardize the sale. This is commendable particularly in this era where cutthroat business practices are commonplace. I highly recommend Basement Gurus. They are fortunate to have an employee like Josh who exhibits concern for the customer at such a high level. "

Don I on January 2026

"Josh, the representative from Basement Gurus was outstanding! We had experienced a water issue in our finished basement. Josh thoroughly examined the interior and exterior of the home and determined that the leak might be plumbing related. Josh could have very easily exploited our ignorance and suggested a solution purely beneficial to his company that may not have addressed the underlying cause of the problem. Instead, he demonstrated his integrity by realistically assessing the situation even if it would jeopardize the sale. This is commendable particularly in this era where cutthroat business practices are commonplace. I highly recommend Basement Gurus. They are fortunate to have an employee like Josh who exhibits concern for the customer at such a high level. "

Don I on January 2026

Quality 1st Basement Systems, Inc.

4.87(

Quality 1st Basement Systems, Inc.

4.87(

Customers say: Quick response

27 years of experience

Quality 1st Basement Systems is your local, family owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Mold Remediation, Crack Repair, Radon Testing and Radon Mitigation, Egress Windows and Egress Stairwell, and Crawlspace Encapsulation too. 100% FINANCING AVAILABLE and free estimates. We have been in business for 25 years and have five star ratings with Google, Yelp, and the BBB. Winner of the 2021 BBB Torch Award for Market Place Ethics and finalist for the 2022 International BBB Torch award for Market Place Ethics. CONTACT US NOW BY CALLING 1-800-768-6745 OR EMAIL US AT [email protected]

"Installed radon filter without any issues or hassle."

Jonathan M on May 2023

"Installed radon filter without any issues or hassle."

Jonathan M on May 2023

Best Buy Waterproofing

5.00(

Best Buy Waterproofing

5.00(

Customers say: Quick response

Recommended by 97% of Angi customers

9 years of experience

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

"Ed fixed the problem 2 thumbs up!"

Pete H on December 2025

Quality 1st Basement Systems, Inc

Quality 1st Basement Systems, Inc

Customers say: Super punctual

Recommended by 90% of Angi customers

28 years of experience

Quality 1st Basement Systems is your local, family-owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Crack Repair, Egress Windows and Egress Stairwell, and Crawlspace Encapsulation too. 100% FINANCING AVAILABLE and free estimates. We have been in business for 25 years and have five star ratings with Google, Yelp, and the BBB. Winner of the 2021 BBB Torch Award for Market Place Ethics and finalist for the 2022 International BBB Torch award for Market Place Ethics. CONTACT US NOW BY CALLING 1-800-768-6745 OR EMAIL US AT [email protected]

"Service was great from sales, to installation, to post installation support. Very responsive, very professional. It's hard to find in this 'space'--there are a lot of shady people in basement water damage/repair, and this place exceeded expectations. We've had our repair in place for 4+ years, with only 1 small issue on a wall seam crack, and that was fixed within 24 hours of reporting the issue. Stand up place! Thank you for such great service and support."

john m on January 2024

"Service was great from sales, to installation, to post installation support. Very responsive, very professional. It's hard to find in this 'space'--there are a lot of shady people in basement water damage/repair, and this place exceeded expectations. We've had our repair in place for 4+ years, with only 1 small issue on a wall seam crack, and that was fixed within 24 hours of reporting the issue. Stand up place! Thank you for such great service and support."

john m on January 2024

Groundworks

Groundworks

Customers say: Super punctual

Recommended by 91% of Angi customers

29 years of experience

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)

"I got my basement waterproofed in January 2023 paid $16K for it & I had to call them twice already because still getting water in the basement not only that but this machine has been beeping consistently every 2-3 seconds because it needs service I called them to come out to resolve the matter but have to wait a whole month for someone to come out! For me to pay $16K to get horrible service & still go through the water issue is not good at all!!!"

SAKINA T on August 2023

"I got my basement waterproofed in January 2023 paid $16K for it & I had to call them twice already because still getting water in the basement not only that but this machine has been beeping consistently every 2-3 seconds because it needs service I called them to come out to resolve the matter but have to wait a whole month for someone to come out! For me to pay $16K to get horrible service & still go through the water issue is not good at all!!!"

SAKINA T on August 2023

Dry Tech Waterproofing Solutions

4.79(

Dry Tech Waterproofing Solutions

4.79(

Recommended by 92% of Angi customers

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!

"Great! Not going to lie, they are expensive. But they were quick, professional, and efficient. Completed the repairs and clean-up immaculately. Great job!"

Edward B on May 2023

"Great! Not going to lie, they are expensive. But they were quick, professional, and efficient. Completed the repairs and clean-up immaculately. Great job!"

Edward B on May 2023

H&Y Contracting LLC

4.90(

H&Y Contracting LLC

4.90(

Recommended by 93% of Angi customers

4 years of experience

H&Y Contracting LLC take great pride in our experience, expertise, quality and customer service that we provide to meet your 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 a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"We recently worked with H&Y LLC for an addition they built on the back of our home. Yokayra and Heber are definitely a power couple! From their expertise and professionalism to their workmanship and quality products, everything is always 100%. The crew is exceptional, and everyone works very well together. They also renovated our kitchen in the main house and it's absolutely gorgeous! Their customer service is superb. They are always available to answer any questions, address any concerns, and work with you and your budget to execute your vision. We are very pleased with their work and will definitely be using them for future projects. If you need quality work, seriously just give them a call. I promise you will not be disappointed! Thank you all so much!! "

Vanessa F on September 2025

"We recently worked with H&Y LLC for an addition they built on the back of our home. Yokayra and Heber are definitely a power couple! From their expertise and professionalism to their workmanship and quality products, everything is always 100%. The crew is exceptional, and everyone works very well together. They also renovated our kitchen in the main house and it's absolutely gorgeous! Their customer service is superb. They are always available to answer any questions, address any concerns, and work with you and your budget to execute your vision. We are very pleased with their work and will definitely be using them for future projects. If you need quality work, seriously just give them a call. I promise you will not be disappointed! Thank you all so much!! "

Vanessa F on September 2025

AVG Waterproofing

4.66(

AVG Waterproofing

4.66(

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

"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

Groundworks

4.39(

Groundworks

4.39(

Customers say: Super punctual

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

"Great Job. Very professional."

Richard A on March 2025

'58 Foundations

3.75(

'58 Foundations

3.75(

68 years of experience