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Best basement waterproofing pros near Somerville, NJ

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  • Verified reviews icon105
    Verified basement waterproofing services reviews

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

Avatar for Absolute Waterproofing and Renovation, LLC
Absolute Waterproofing and Renovation, LLC
4.8(
190
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Somerville, 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 Blue Umbrella Waterproofing, LLC
Blue Umbrella Waterproofing, LLC
4.9(
57
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Somerville, NJ and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"3 2 1 5.0 (163) Reviews All french drain50 clean36 job34 sump pump31 +6 Sort by Most relevant Newest Highest Lowest Christian Camilo 20 reviews·11 photos 2 minutes ago NEW Positive: Professionalism, Punctuality, Quality, Responsiveness Steve the owner, Tony and Crew @ Blue Umbrella Waterproofing did excellent work. They Truly exceeded my expectation. Steve is extremely customer focused and ensures that his customers have a good understanding of why certain thing need to â ¦ More Photo 1 in review by Christian Camilo Photo 2 in review by Christian Camilo Photo 3 in review by Christian Camilo Photo 4 in review by Christian Camilo +2 David Kirsten 1 review·2 photos 3 weeks ago NEW Positive: Professionalism, Punctuality, Quality, Responsiveness, Value Steve the Owner, Tony & Crew @ Blue Umbrella Waterproofing did a fantastic job from start to finish and exceeded our expectations. â ¦ More Photo 1 in review by David Kirsten Photo 2 in review by David Kirsten Blue Umbrella Waterproofing (Owner) 3 weeks ago Thank you David for such a positive, and detailed review. It was a pleasure to serve you, and to waterproof your basement. If you or your neighbors ever need us in the future, we are always here to help. Dolly Rana 4 reviews·3 photos 4 months ago Service: Foundation repair Iâ m glad I picked Blue Umbrella out of 3 companies I consulted to address the water issue in my basement. Tony & the crew were on time. Tony reviewed with me what/how theyâ re going to do. A brand new sump pump was installed which I liked. â ¦ More Photo 1 in review by Dolly Rana Photo 2 in review by Dolly Rana Blue Umbrella Waterproofing (Owner) 4 months ago Hello Dolly. Thank you for speaking so warmly of Blue Umbrella and for recommending us. We appreciate you taking time to leave us a review and for complimenting Tony, Steve and the Crew. Rishi Athanikar 1 review a day ago NEW Positive: Professionalism, Punctuality, Quality Steve and the Blue Umbrella team did an outstanding job with our basement waterproofing project. Their professionalism was evident from start to finish, and they went above and beyond to ensure a thorough and meticulous job, and exceed our â ¦ More Blue Umbrella Waterproofing (Owner) a day ago Thank you for the review Rishi, and for recommending us. We are proud of the work we did and glad we could help you waterproof your basement. Christian Camilo 20 reviews·11 photos 2 minutes ago NEW Positive: Professionalism, Punctuality, Quality, Responsiveness Steve the owner, Tony and Crew @ Blue Umbrella Waterproofing did excellent work. They Truly exceeded my expectation. Steve is extremely customer focused and ensures that his customers have a good understanding of why certain thing need to be done and what they are going to do. The entire process was incredibly smooth, Steve was very detailed in explaining step by step what was happening, he constantly and consistently checked-in to ensure all work passed his quality check. I was impressed by the install, from the scrub down and sanitizing they gave the basement, to the quality of their materials, the additional drain by the door they provided at no extra charge, and last but not least a draining area for the dehumidifier which saves me the twice daily trip down to the basement. I looked at a few waterproofing companies, and am glad I choose Blue Umbrella Waterproofing. They were reliable, efficient, had high-quality standard, and lastly upfront and honest. I would recommend them for any waterproofing needs."
OUR WORK
CARBON FIBER STRAP
Response time2 days
Response rate100%
8 neighbors recently requested a quote
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 Somerville, NJ and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"I am not yet able to determine whether or not the expected results of the basement waterproofing work is satisfactory as I have not had a rainstorm or heavy rain since the basement waterproofing work was performed. I will, however, pay great accolades to Quality 1st customer service, especially to Kyle. I was troubled with the proposal for the job as certain aspects of the language would have left me at an unfair liability should something had gone wrong with the work. I explained this issue with Kyle who followed through until the proposal was acceptable to me. The work crew was exceptional in that they were punctual, worked quickly, neatly and were, without question, among the hardest workers ever to have done a construction project for me. The crew was headed by Wilver along with his guys - Manuel and Jose. Again, I will refrain from commenting on the expected results of the work performed until the appropriate circumstances occur. In summary, I would say that Quality 1st demonstrated A1 customer service and the crew that performed my basement work were hard workers with great attitude."
Additional Photos
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Additional Photos

+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 Somerville, 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
280 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 Somerville, 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
Avatar for Quality 1st Basement Systems, Inc.
Quality 1st Basement Systems, Inc.
4.2(
214
)
Basement Drainage Channels - InstallFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Somerville, NJ and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"My crew were highly skilled and hard working. They were also very polite and cooperative when I asked them to cover what my tenant needed to leave in the basement during the waterproofing operation. All the work was completed in the 2 days they promised. They cleaned up all the debris when the job was finished."
Driveway Restored With PolyLevel
NJ Basement Remodeled
Dark Basement Transformed
Basement Transformation
Unfinished Bedroom

+251

Recommended by84%of homeowners
Avatar for Groundworks
Groundworks
4.6(
308
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Somerville, NJ and surrounding areas

Approved (Corporate)

In business since 1999

Free estimates

Emergency services offered

"Full waterproofing of the basement in our 95 year old house, including demolition of walls and shelves/cabinets/sinks and plumbing. Additional service of adding a footing to the basement walls. All the work took three days. Excellent work and looks great, though a bit costly."
Basement
Basement
Basement
Basement
Foundation

+15

Response time1 day
183 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for AJT Complete Construction LLC
AJT Complete Construction LLC
4.8(
346
)
Basement Drainage Channels - Install

Serving Somerville, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Emergency services offered

"Work was done to code (which was not by previous company prior to my purchase of home). In addition to chimney repairs they did some work to boiler and hot water connects in basement that were not done to code. I am very satisfied with the work done. I highly recommend them and would hire them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+55

Response time11 hrs
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for HENDRICKSON EXCAVATING
HENDRICKSON EXCAVATING
5.0(
42
)
Basement Drainage Channels - Install

Serving Somerville, NJ and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

4-TIME Super Service Award Winner!! Hendrickson Excavating has been in business for more than 30 years. We are a family owned and operated excavating company with a committment to our client to provide honest and reliable service combined with excellent workmanship. SPECIALIZING IN: -SEPTIC SYSTEMS - NEW AND REPAIRS -EQUINE ARENA'S -WATER GARDENS -GRAVEL DRIVEWAYS - NEW AND REPAIR -DRAINAGE -GRADING -FOUNDATIONS -PROPANE TANK REMOVAL -GENERAL EXCAVATING SERVICES

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

Yes, it’s worth it to repair a crawl space foundation, even if the issue seems relatively minor. Foundation problems often get worse and more expensive to fix if you leave them untreated. Additionally, your entire home, from the framing and flooring to the roof system, relies on the foundation for even and level support. Issues with your foundation will almost always manifest as problems in and above your living space, so it’s important to find a solution.

Mold and mildew are the things in basements that actually cause the musty odors, but moisture is the underlying issue that causes mold and mildew growth. Addressing moisture and water problems and then removing materials that are moldy are some of the best ways to get rid of the musty odors. Preventive measures after that—like installing air fresheners and a dehumidifier—can help keep musty odors from returning.

Some disadvantages of crawl spaces are mostly regarding the air itself—moisture build-up and poor ventilation, which can cause problems both in the house and underneath it, even damaging the foundation itself. Crawl spaces are difficult to access and often invite unwanted pests during the hot summer months and the cold winter ones. These hard-to-seal spaces are also susceptible to water damage during periods of heavy rain or melting snow.

Permits may be required for major repairs, structural work, or electrical and plumbing restoration after a flood. Check with your local building department to determine permit requirements and associated fees for your flooded basement cleanup project. Obtaining the correct permits helps ensure work is done safely and up to code.

Several types of insulation are effective for crawl spaces, with spray foam and rigid foam boards being two of the best options. Closed-cell spray foam insulation is a strong choice because it effectively repels moisture, resists biological growth, seals the air, and provides excellent thermal protection, especially in hard-to-reach areas. Rigid foam insulation boards are another excellent material as they insulate well, resist water damage, and will not settle over time like fiberglass or cellulose.

The Somerville, NJ homeowners’ guide to basement waterproofing services

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