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Best basement waterproofing pros near Dunellen, NJ

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    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Dunellen - Updated Nov 2026

Avatar for American A-1 Waterproofing
American A-1 Waterproofing
4.7(
148
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Dunellen, NJ and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"We recently had our basement waterproofed by the American A-1 Waterproofing Company, and I couldn't be happier with the job they did. From start to finish, the team at American A-1 Waterproofing was professional, knowledgeable, and dedicated to ensuring that my basement would be completely waterproof. First, the team came out to assess my basement and provide me with a detailed estimate of the work that needed to be done. They took the time to explain the process to me, answer my questions, and address any concerns I had. I felt like they really listened to my needs and customized their approach to fit my specific situation. Once the work began, the team was punctual, respectful, and efficient. They took great care to protect our home and belongings, and they kept us updated throughout the process. They worked quickly but thoroughly, and we were impressed by their attention to detail. The waterproofing work itself was top-notch. The team used high-quality materials and techniques to ensure that every nook and cranny of my basement was completely sealed and protected from water damage. They also installed 3 sump pump and created a French drain to further safeguard our home. A-1 did a great job waterproofing our flooded and leaking basement. They kept coming back as bigger rainstorms showed smaller leaks and waterproofed the inside and outside until stayed dry. Overall, I highly recommend American A-1 Waterproofing for anyone in need of basement waterproofing services. They are professional, knowledgeable, and dedicated to ensuring customer satisfaction. Thanks to their hard work, I now have a safe and dry basement that I can enjoy for years to come!"
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+14

Response time3 days
Response rate100%
3 neighbors recently requested a quote
Avatar for Absolute Waterproofing and Renovation, LLC
Absolute Waterproofing and Renovation, LLC
4.8(
190
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dunellen, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"Absolute waterproofing did an outstanding job installing carbon straps on a bowed basement wall. Not only did they do a great job , Lou took care of tbe township permit application and follow up . He was always available to answer any questions, supply information and warranty on carbon straps! When we decided to hzve the basement painted he got his crew together to do it immediately. He did an outstanding job. He was thorough, Always accessible and returned phone calls, explaining everything that he was doing to fix the problem! I highly recommend Absolute Waterproofing for any House that has a basement issue ! Barbara kenas remax central"
Drainage system
Structural renovations
Drainage system
Floor renovations
Drainage system

+48

Response time10 hrs
46 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for WEATHER-TITE WATERPROOFING INC.
WEATHER-TITE WATERPROOFING INC.
4.8(
100
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Dunellen, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Free estimates

Warranties offered

"Professional, reliable, honest and hardworking. Bob was wonderful to work with! We urgently needed basement waterproofing and Bob was efficient and worked in a timely manner. I have already recommended Bob to a friend and will continue to do so!"
Response time12 hrs
23 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for NATIONAL PRO WATERPROOFING LLC
NATIONAL PRO WATERPROOFING LLC
5.0(
48
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Dunellen, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"I hired National pro Waterproofing to fix my basement moisture issues, and they did an amazing job! The team was professional, explained everything clearly, and completed the work on time. My basement has stayed completely dry since. Highly recommend?great service and results!"
Finished JOB
Start Job
MID JOB
Finished JOB
AFTER TRENCHED OUT

+3

Response time4 hrs
Response rate99%
10 neighbors recently requested a quote
Avatar for Blue Umbrella Waterproofing, LLC
Blue Umbrella Waterproofing, LLC
4.9(
57
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Dunellen, NJ and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"We had French drains installed around the whole perimeter of the basement. They were very professional from start to finish. Very fair quote and to be honest the best we recieved. On the day of the project, Tony who had given the quote was there to walk us through everything and get it all going. Even Steve the owner came out and checked in with us. The crew was great. They answered any questions we had, were very hard working and left the house cleaner then they found it. Overall a great experience."
OUR WORK
CARBON FIBER STRAP
Response time2 days
Response rate100%
8 neighbors recently requested a quote
Avatar for American Eagle Waterproofing, LLC
American Eagle Waterproofing, LLC
4.8(
99
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dunellen, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Warranties offered

"Very neat with their work in a messy job. Laid down protective flooring to prevent mud from being tracked through my house. Went from a basement with ankle deep water to a waterproof basement with no water in the basement even after tropical storm rains."
waterproof
basement waterproofing
basement waterproofing
basement waterproofing
water under  floor

+6

Response time1 day
3 neighbors recently requested a quote
Recommended by94%of homeowners
Basement Waterproofing Specialists
4.0(
597
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dunellen, NJ and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I had a serious basement flooding problem. I had my basement waterproofed 2 times. it didn't work! Basement Waterproofing Specialists installed a commercial drain system and after 2 years I have never had a drop of water they are AMAZING, thank you Basement Waterproofing specialists YOU ARE THE BEST!"
Foundation Repair
 Before and After Stone Work
 Mirra Drain
 Mold Remediation
 Clean Work Areas

+67

Response time11 hrs
267 neighbors recently requested a quote
Recommended by86%of homeowners
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Basement Waterproofing FAQs, answered by experts

The most challenging part of finishing a basement is addressing moisture control. Basement waterproofing is an essential task that requires a professional’s skills and knowledge. If you don’t properly waterproof your finished basement, it’ll be vulnerable to dampness, water damage, and mold growth. Ensuring proper insulation and ventilation to combat these issues while meeting building codes adds complexity to your remodeling project.

If there is standing liquid on your concrete, remove it before attempting any of the above cleaning methods. For small amounts of water, use rags, a bucket, and a mop. For larger areas of liquid, lay down cat litter or baking soda to soak up the water first. If you have extremely large pools of water sitting on your concrete, break out the wet vac and get to work.

Yes, water coming up from the floor should be treated as an emergency. If you're unable to either identify or stop the source of the water on your own, contact an emergency plumber right away. In addition to harming your flooring, standing or pooled water can lead to water-damaged concrete.

Brick is designed to absorb moisture, but it is also designed to let it evaporate as well. So in general, the goal shouldn’t necessarily be keeping moisture out but making sure it has the room to breathe. If you have excess moisture getting through your brick wall, it’s more likely that you have a crack or other issue at play that a typical sealant won’t fix. So, instead of investing in sealant, try repairing your brick wall instead.

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

The Dunellen, NJ homeowners’ guide to basement waterproofing services

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