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Best basement waterproofing pros near Williamstown, NJ

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TRUSTED BY WILLIAMSTOWN, NJ HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon46
    Verified basement waterproofing services reviews

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

Avatar for Basement Gurus, LLC
Basement Gurus, LLC
4.8(
217
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Warranties offered

"The team arrived on time to do extensive work on my basement floor and walls and outside underground drainage issues. They worked tirelessly all day to remove old concrete, lay a new pipe system, pour new concrete, install sump pump, and seals. They prepped the walls and sealed and painted with Loxon paint. Radon seals were included in the redone areas. The outside work included installation of a new underground drainage pipe with pop up exit drain. A rubber membrane was installed behind the house siding. We?ve had several days of heavy rain since the waterproofing work was completed and the basement floor and walls have remained dry. We recommend Basement Gurus to other homeowners experiencing waterproofing problems for dependable and satisfying solutions."
100 Ft 4 inch HDPE to drywell
Concrete Replacement
Egress Installation
Walls After Wall Pin Installation
After Concrete has been removed

+339

Response time1 day
491 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Dry Tech Waterproofing Solutions
Dry Tech Waterproofing Solutions
4.4(
276
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Every phase of the basement waterproofing project was first-rate. Through sketches, the inspector/technician took the time to explain how a sub-floor pressure relief system works. In a knowledgeable and professional manner, he designed the system for our basement and presented a detailed project proposal with drawings. An affordable cost estimate was reached. Also, financing guidance was given to obtain a deferred interest loan. Three days later, the construction crew arrived to begin installation of the system. They were attentive to specific concerns and answered all questions completely and politely. Through discipline and hard work, they completed the job in two days, one day ahead of schedule. Upon completion, including a thorough clean-up, a tour was given of the newly installed system. Dry Tech Waterproofing Systems is a high quality and efficient company that I will highly recommend to family, friends, neighbors, and others."
Digging out the area
Filling in the crack
During
Insulation board is placed over the Water Shield
Water Shield

+24

Response time8 hrs
Response rate99%
129 neighbors recently requested a quote
Avatar for Enviropro Basement, LLC
Enviropro Basement, LLC
4.1(
69
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Williamstown, NJ and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"I was very pleased with the work that the Enviropro team completed in my basement with the installation of the drainage system. Mike took the time to really walk thru project details and answer any questions prior to the project. The team arrived onsite the first day of the job and walked thru to explain the work they would start. They communicated any questions throughout the project and I was highly pleased once the job was completed. I would definitely recommend Enviropro for basement waterproofing needs."
11 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Quality 1st Basement Systems
Quality 1st Basement Systems
4.4(
313
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Williamstown, NJ and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"I used this company first to install a dehumidifier and then a sump pump. Prices were reasonable and payment plan option available. My basement is now fully waterproof. The excellent customer service is polite and responds in a reasonable time. Awesome company!!!"
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+181

Response time10 hrs
Response rate100%
35 neighbors recently requested a quote
Basement Waterproofing Specialists
4.0(
597
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Williamstown, 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
249 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Desert Dry Waterproofing & Remodeling, LLC
Desert Dry Waterproofing & Remodeling, LLC
4.7(
53
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Williamstown, NJ and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"What an incredible experience from start to finish. Ted the owner came out for a free estimate and explained everything very well. He knew what would work best for the issue I was having in the basement and showed me other problems that could be repaired as well. Not knowing how much Waterproofing a basement cost I got a second estimate and Desert Dry was close to $2,000 cheaper. Desert Dry also, disconnects, moves and covers everything in the basement before working. Ted and crew worked very hard to waterproof the entire basement in a timely matter. They also reconnect everything and did a great job cleaning up once finished. Very satisfied with the work performed and I highly recommend Desert Dry."
Response time8 hrs
Recommended by97%of homeowners
Avatar for Elite Basement Solutions Co
Elite Basement Solutions Co
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Williamstown, NJ and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"I had my basement waterproofed and couldn’t be happier with the results. They were knowledgeable, professional, and very easy to work with. They showed up on time, kept everything clean, and made sure the job was done right. I would absolutely recommend them to anyone needing waterproofing work!!"
Gallery
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Gallery
24 neighbors recently requested a quote
Avatar for Just Dry Basements
Just Dry Basements
5.0(
2
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Williamstown, NJ and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Working with Just Dry Basements was best described as no-nonsense, fast, and high-quality. In a highly-charged emotional situation like a basement flooding - it is easy to just pick someone to do the work out of desperation. I was lucky enough to work with JDB, who not only rapidly assessed, made a plan together on how we would approach the job, and accommodated a difficult situation where the basement was mostly finished, and they had to carefully deconstruct some of the walls to put in the proper mitigation. A year plus later and a LOT of rain past, the work truly stands the test of time and whatever the elements can throw at it. I have since worked with JDB on other projects, and not just because of the quality of work, but also their fair pricing, friendly and predictable communication, as well as standing behind their work 100%."
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+26

Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Laury Heating Cooling & Plumbing
Laury Heating Cooling & Plumbing
4.8(
185
)
Basement Drainage Channels - Install

Serving Williamstown, NJ and surrounding areas

Approved

In business since 1945

Free estimates

Emergency services offered

"Jeff J. Dug up my septic tank and cleared the inlet baffle. Thankfully the sewer was not backed up, it was clogged from the line in the basement. He knew exactly what to do and how to get my system back on line. The professionalism was very much appreciated and Jeff was very helpful and explained to me what was happening. I will do as Jeff suggested to have my sewer cleaned, to be on the safe side. Thank you so much for sending Jeff, and I always recommend that men like him should get a raise, also my Laury Heater guy, he was excellent, this winter,. Give them both a raise, thank you for employing honest men, like Jeff."
High efficiency Carrier condenser.
High efficiency Carrier Infinity gas furnace with variable speed blower.
High efficiency Carrier gas furnace and Trion Air Bear filter.
High efficiency Carrier heat pump installation.
Ductwork installation.

+13

Response time10 mins
Response rate100%
22 neighbors recently requested a quote
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Showing 1-10 of 129
Basement Waterproofing FAQs, answered by experts

French drains and yard grading systems are two highly effective ways to fix standing water around the foundation. Since the French drain uses a perforated pipe covered by gravel, you won’t have to worry about water taking the soil away from your foundation. Meanwhile, yard grading levels out the ground to prevent water from gathering around your foundation.

No, you don’t want your crawl space to be wet because water and even moisture in the air under your home can attract insects and rodents, decrease your indoor air quality, increase your energy bills, promote mold growth, and even lead to structural damage. If you notice any signs of water or humidity in your crawl space, you should get the issues addressed immediately by contacting a professional. They can remove moisture and will know how to waterproof your basement to prevent ongoing problems.

Egress windows or doors are required in finished basements to meet safety and building codes. If your basement is unfinished and used as a storage space, egress windows are not required, but anything considered a habitable space must have an additional point of egress in addition to the stairs.

You’ll need to reseal the foundation every five to 10 years, depending on the sealant you’ve used, the moisture conditions present in and around your home, and the condition of your foundation. Having a foundation inspection conducted before reapplication can help you catch any problems before you begin resealing. Of course, if you notice any new leaks or other moisture problems at any time, it may be necessary to reseal the foundation sooner.

The most flood-resistant materials you can count on in a flood scenario are concrete, closed-cell insulation, foam insulation (also known as expandable foam), pressure-treated wood, marine-grade plywood, and ceramic tile. When a material is flood-resistant, it can withstand direct contact with floodwater for at least 72 hours without being significantly damaged.

The Williamstown, NJ homeowners’ guide to basement waterproofing services

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