Top-rated basement waterproofing pros.

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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon31
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Knowlton

Avatar for Groundworks

Groundworks

4.57(
225
)
Approved Pro

Groundworks

4.57(
225
)
Approved Pro
Customers say: Super punctual
46 local quotes requested
21 years of experience

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


"We paid close to $20,000 to BQ Basements to completely waterproof our basement. We still get water and they told us we need another sump pump installed at over $2,000. They guaranteed we would not get water after installation. Be aware they do not stand behind their work or honor warranties."

Robert K on October 2025

Groundworks offers dependable foundation and crawl space repair solutions, basement waterproofing, and concrete lifting for New Jersey residents. We take pride in restoring the value and safety of homes in our local community.

"We paid close to $20,000 to BQ Basements to completely waterproof our basement. We still get water and they told us we need another sump pump installed at over $2,000. They guaranteed we would not get water after installation. Be aware they do not stand behind their work or honor warranties."

Robert K on October 2025


Avatar for WEATHER-TITE WATERPROOFING INC.

WEATHER-TITE WATERPROOFING INC.

4.93(
92
)
Approved Pro

WEATHER-TITE WATERPROOFING INC.

4.93(
92
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
55 local quotes requested

Weather-tite Waterproofing is a family owned, full service basement waterproofing company that has been serving our customers since 1992.All work is performed by our trained,professional staff,never by sub-contractors.All inspections are done by owner after which you shall receive a free, written estimate.

"Excellent service. Courteous, prompt, clean, friendly and great attention to detail."

Shari M on July 2025

Weather-tite Waterproofing is a family owned, full service basement waterproofing company that has been serving our customers since 1992.All work is performed by our trained,professional staff,never by sub-contractors.All inspections are done by owner after which you shall receive a free, written estimate.

"Excellent service. Courteous, prompt, clean, friendly and great attention to detail."

Shari M on July 2025


Avatar for Quality 1st Basement Systems

Quality 1st Basement Systems

4.58(
253
)
Approved Pro

Quality 1st Basement Systems

4.58(
253
)
Approved Pro
Customers say: Super punctual
277 local quotes requested
39 years of experience

Quality 1st Basement Systems has been helping homeowners improve their homes for over 20 years. We have currently helped over 6,000 homeowners with All Things Basementy by designing effective solutions for their home’s needs. Whether our homeowners are interested in waterproofing a wet basement, fixing cracked foundation walls, insulating their crawl spaces, finishing their basements with mold-resistant materials, and raising concrete slabs, we can help! We’re currently the largest waterproofing company serving both residential and commercial clients in the tri-state area and are continuing to grow. As a member of the internationally renowned Basement Systems, Inc. network and Foundation Supportworks, Inc. network, we have global resources, but provide local service! The Basement Systems network thoroughly trains our employees at the Basement Systems, Inc. corporate headquarters in CT. Our hard work and dedication to our customers have earned us an A+ rating with the Better Business Bureau and several Super Service Awards from Angie’s List. We service most of New Jersey, all 5 boroughs of New York City and certain parts of Pennsylvania. Thousands of homeowners have experienced the Quality 1st Basement Systems difference. We invite you to do your homework and check out our credentials and compare. Put our experience and integrity to work protecting your investment. Our reputation exceeds all others because of our culture of WOW customer service.

"Everything went smoothly"

Hector R on December 2023

Quality 1st Basement Systems has been helping homeowners improve their homes for over 20 years. We have currently helped over 6,000 homeowners with All Things Basementy by designing effective solutions for their home’s needs. Whether our homeowners are interested in waterproofing a wet basement, fixing cracked foundation walls, insulating their crawl spaces, finishing their basements with mold-resistant materials, and raising concrete slabs, we can help! We’re currently the largest waterproofing company serving both residential and commercial clients in the tri-state area and are continuing to grow. As a member of the internationally renowned Basement Systems, Inc. network and Foundation Supportworks, Inc. network, we have global resources, but provide local service! The Basement Systems network thoroughly trains our employees at the Basement Systems, Inc. corporate headquarters in CT. Our hard work and dedication to our customers have earned us an A+ rating with the Better Business Bureau and several Super Service Awards from Angie’s List. We service most of New Jersey, all 5 boroughs of New York City and certain parts of Pennsylvania. Thousands of homeowners have experienced the Quality 1st Basement Systems difference. We invite you to do your homework and check out our credentials and compare. Put our experience and integrity to work protecting your investment. Our reputation exceeds all others because of our culture of WOW customer service.

"Everything went smoothly"

Hector R on December 2023


Avatar for Dry Tech Waterproofing Solutions

Dry Tech Waterproofing Solutions

4.79(
28
)
Approved Pro

Dry Tech Waterproofing Solutions

4.79(
28
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
39 local quotes requested

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

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


Avatar for Burke Home Services

Burke Home Services

4.98(
84
)
Approved Pro

Burke Home Services

4.98(
84
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 local quotes requested

Burke Home Services is a full service contractor who specializes in Quality craftsmanship. Building and maintaining relationships with our customers is our highest priority. From restaurants to a beautiful deck. We focus on energy saving options and implement them on every job possible.

"Actually in two parts, immediate repair and long term. First part is done."

John W on March 2025

Burke Home Services is a full service contractor who specializes in Quality craftsmanship. Building and maintaining relationships with our customers is our highest priority. From restaurants to a beautiful deck. We focus on energy saving options and implement them on every job possible.

"Actually in two parts, immediate repair and long term. First part is done."

John W on March 2025


"Very happy with the service and the concrete work provided by Sean and his crew. He was able to meet a strict schedule and was helpful answering my questions and offered smart solutions. In the end, the job was done on time, correctly and I am extremely pleased overall. Thank you, Sean and Century Masonry for making it look easy and doing a great job!!"

Mike C on November 2024

Water control, drain systems, sump pumps, battery back-up pumps, crawl space encapsulation & wall repair. Additional email - [email protected]. Additional email - [email protected]

"Very happy with the service and the concrete work provided by Sean and his crew. He was able to meet a strict schedule and was helpful answering my questions and offered smart solutions. In the end, the job was done on time, correctly and I am extremely pleased overall. Thank you, Sean and Century Masonry for making it look easy and doing a great job!!"

Mike C on November 2024



Apex Property Management

No reviews yet

Apex Property Management

No reviews yet
3 years of experience

Apex Property Management Group Specialties and Overview of Services: At Apex Property Management Group, we specialize in comprehensive property maintenance and construction services to enhance the safety, aesthetics, and functionality of residential and commercial properties. Our versatile skill set covers a wide range of areas, including plumbing, remodeling, electrical work, HVAC systems, gutter and window cleaning, and preventative maintenance. Whether you need plumbing installations, remodeling projects, or routine maintenance services, we have the expertise to handle all your property needs. Value Proposition: What sets us apart from our competitors is our commitment to delivering results-driven solutions that prioritize property value, resident satisfaction, and operational efficiency. With years of experience in plumbing, remodeling, and property maintenance, we bring a wealth of knowledge and expertise to every project. Our customer-focused approach ensures that we collaborate closely with our clients to understand their needs and exceed their expectations. We adhere to strict safety protocols and regulations to minimize risks and ensure compliance, providing peace of mind to our clients. Background and Staff: With six years of plumbing expertise and three years of remodeling experience, Apex Property Management Group has established itself as a trusted leader in the property management industry. Our team consists of skilled professionals who are dedicated to delivering top-notch service and building positive tenant relationships. As owner-operated professionals, we are deeply invested in the success of every project we undertake, personally overseeing all aspects of the process to ensure a seamless experience for our clients. Contact us today to experience the Apex Property Management Group difference.

Apex Property Management Group Specialties and Overview of Services: At Apex Property Management Group, we specialize in comprehensive property maintenance and construction services to enhance the safety, aesthetics, and functionality of residential and commercial properties. Our versatile skill set covers a wide range of areas, including plumbing, remodeling, electrical work, HVAC systems, gutter and window cleaning, and preventative maintenance. Whether you need plumbing installations, remodeling projects, or routine maintenance services, we have the expertise to handle all your property needs. Value Proposition: What sets us apart from our competitors is our commitment to delivering results-driven solutions that prioritize property value, resident satisfaction, and operational efficiency. With years of experience in plumbing, remodeling, and property maintenance, we bring a wealth of knowledge and expertise to every project. Our customer-focused approach ensures that we collaborate closely with our clients to understand their needs and exceed their expectations. We adhere to strict safety protocols and regulations to minimize risks and ensure compliance, providing peace of mind to our clients. Background and Staff: With six years of plumbing expertise and three years of remodeling experience, Apex Property Management Group has established itself as a trusted leader in the property management industry. Our team consists of skilled professionals who are dedicated to delivering top-notch service and building positive tenant relationships. As owner-operated professionals, we are deeply invested in the success of every project we undertake, personally overseeing all aspects of the process to ensure a seamless experience for our clients. Contact us today to experience the Apex Property Management Group difference.


Avatar for Drake's Excavating LLC

Drake's Excavating LLC

5.00(
1
)

Drake's Excavating LLC

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Drake's Excavating is a full-service excavation and site contracting company serving New Jersey and the surrounding areas. Our company is focused on providing our clients with the highest level of customer service, honesty, and integrity; Based on our strong morals and ethics. Not only relying on our years of experience but utilizing the latest technology to bring projects in on time and on budget. Whether the homeowner, general contractor, or developer we are ready to bring you a value-added service as a trusted partner. Recognized as specialists in commercial and residential site development, land clearing, demolition, wastewater management, septic system design, install and repair, stormwater management, grading, lawn installation, manufactured and natural stone walls and underground utilities. If the project is outside of your home we have a solution for you!

"I was extremally satisfied with the septic installation. It was a great pleasure to have someone like Frank from Drake's Excavating LLC to install the septic system on the property that I was in the process of selling. He handled every aspects of the project and also the permits that were needed. He was very professional about explaining the process of the instillation of the septic system every step of the way. I can not say enough great things about this company and there professionalism while working to get the job done in a timely manner. I will indeed be recommending Drake's Excavating LLC to anyone who asks if they are looking for a contractor to install a septic system."

Dave W on October 2023

Drake's Excavating is a full-service excavation and site contracting company serving New Jersey and the surrounding areas. Our company is focused on providing our clients with the highest level of customer service, honesty, and integrity; Based on our strong morals and ethics. Not only relying on our years of experience but utilizing the latest technology to bring projects in on time and on budget. Whether the homeowner, general contractor, or developer we are ready to bring you a value-added service as a trusted partner. Recognized as specialists in commercial and residential site development, land clearing, demolition, wastewater management, septic system design, install and repair, stormwater management, grading, lawn installation, manufactured and natural stone walls and underground utilities. If the project is outside of your home we have a solution for you!

"I was extremally satisfied with the septic installation. It was a great pleasure to have someone like Frank from Drake's Excavating LLC to install the septic system on the property that I was in the process of selling. He handled every aspects of the project and also the permits that were needed. He was very professional about explaining the process of the instillation of the septic system every step of the way. I can not say enough great things about this company and there professionalism while working to get the job done in a timely manner. I will indeed be recommending Drake's Excavating LLC to anyone who asks if they are looking for a contractor to install a septic system."

Dave W on October 2023

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Basement Waterproofing questions, answered by experts

Mold and other fungi love moisture, so the best way to prevent mold growth after water damage is to remove as much moisture as possible. First, find the source of the water or moisture, such as a leak or clogged gutters, and correct the problem. Next, remove standing water, vacuum up puddles with a shop vacuum, and run blower fans and dehumidifiers for 24 to 72 hours. Once you've removed all traces of moisture, disinfect the area using either vinegar or bleach to kill any remaining mold spores.

A crawl space can be as little as 42 inches below the grade of your house, but this is not always recommended in flood-prone areas. At a minimum, there must be at least 16 inches of clearance between the ground and the floor joists to access the space in an emergency.

The least expensive basement waterproofing methods include grading soil away from your home, installing downspout extenders on your gutter system, and applying a waterproof paint on the interior of the foundation walls. Installing a French drain is a relatively inexpensive method if you do the work yourself, although it’s labor-intensive and can be challenging to install properly.

Preventing future basement flooding often involves installing sump pumps, improving drainage, sealing foundation cracks, and maintaining gutters. Costs vary, but preventive measures can range from a few hundred to several thousand dollars, depending on the solutions chosen. Investing in prevention can save you money on future flooded basement cleanup costs and repairs.

Living in a finished basement is acceptable, but only if the space has the proper points of egress and includes smoke and carbon monoxide (CO) detectors to ensure the safety of the occupants. A good way to ensure your finished basement is suitable for use as living space is to get the basement finishing project properly permitted.

The Knowlton, NJ homeowners’ guide to basement waterproofing services

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