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Best basement waterproofing pros near Randolph, NJ

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TRUSTED BY RANDOLPH, NJ HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon51
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Randolph - 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 Randolph, 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%
1 neighbors recently requested a quote
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 Randolph, 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
22 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Century Masonry & Waterproofing
Century Masonry & Waterproofing
4.9(
64
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Randolph, NJ and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"We had water issues in our basement. They provided great, cost effective solution and explained all the steps for the resolution. Professional, knowledgeable and clean service. We are so satisfied we would not hesitate to recommend them!!"
The beginning
WaterGuard XL
Final Product
CleanSpace around support pillars
CleanSpace on the floor

+26

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
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 Randolph, 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 Randolph, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Warranties offered

"Can't recommend them enough! Excellent work and service! Not the lowest quote I got, but felt they had the right experience and focus for my basement waterproofing job. Responded to my questions and requests immediately. Save yourself aggravation and use this company."
waterproof
basement waterproofing
basement waterproofing
basement waterproofing
water under  floor

+6

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

Serving Randolph, 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
248 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for International Water Proofing & Construction, LLC
International Water Proofing & Construction, LLC
4.9(
19
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Randolph, NJ and surrounding areas

Approved

In business since 2016

Free estimates

Small jobs welcome

We are a family company with 15 years of experience in the construction industry. We specialize in masonry work, concrete work and waterproofing. We will treat your home as we would our own. Give us a call today, we look forward to working with you!

Front Yard & Hardscape
After
Before
After
Before

+1

2 neighbors recently requested a quote
Recommended by89%of homeowners
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Basement Waterproofing FAQs, answered by experts

Yes. Water can penetrate through a concrete foundation wall. This can happen whether or not you have cracks, as concrete is a porous material. You’ll want to take steps to waterproof your basement or crawl space.

Yes, engineers assess soil load-bearing capacity and provide construction guidelines.

The most expensive foundation repair method is to install helical piers. Helical piers are a type of steel pier used to support sinking foundations in areas with poor soil conditions or deep bedrock. This foundation repair method can cost up to $3,000 per pier, including labor, because of its material and labor-intensive installation process. Total foundation repair costs can easily reach over $20,000 using this method.

Waterproofing or encapsulating protects against moisture, preventing mold growth and structural damage. These services also enhance energy efficiency and improve air quality by keeping humidity levels in check.

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

The Randolph, NJ homeowners’ guide to basement waterproofing services

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