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Find Basement leak repair pros in Watchung

All-Star Contractors of Hunterdon County, LLC

4.73(
30
)
Approved Pro

All-Star Contractors of Hunterdon County, LLC

4.73(
30
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
55 years of experience

EXCELLENCE IN RESIDENTIAL CONSTRUCTION! ATTENTION FLIPPERS: Make us a part of your team! We will take your property from unlivable to ready to sell. **WE SPECIALIZE IN MAJOR RECONSTRUCTION FOR HOUSE FLIPS AND FOR HOMES INVOLVED IN FIRES ETC. We do it ALL. From design & permit work to construction and finish. We have served central New Jersey for over 50 years. We have all the necessary in house specialist that can provide top quality performance for any job. Call or click to schedule an estimate today!

"All-Star Contractors was a pleasure to work with on my garage project. Bill scheduled an assessment and was right on time, during which he provided a competitive estimate for the whole project. The garage included electric, cement, roofing, and custom shelves, all of which Bill and his team were able to provide. His team showed up on time every morning and got the work done on the agreed-upon timeline. Bill was easy to work with an accommodated several special requests and his team did a fantastic job on the project. I would hire him again for any construction or home improvement needs!"

Thomas H on June 2025

EXCELLENCE IN RESIDENTIAL CONSTRUCTION! ATTENTION FLIPPERS: Make us a part of your team! We will take your property from unlivable to ready to sell. **WE SPECIALIZE IN MAJOR RECONSTRUCTION FOR HOUSE FLIPS AND FOR HOMES INVOLVED IN FIRES ETC. We do it ALL. From design & permit work to construction and finish. We have served central New Jersey for over 50 years. We have all the necessary in house specialist that can provide top quality performance for any job. Call or click to schedule an estimate today!

"All-Star Contractors was a pleasure to work with on my garage project. Bill scheduled an assessment and was right on time, during which he provided a competitive estimate for the whole project. The garage included electric, cement, roofing, and custom shelves, all of which Bill and his team were able to provide. His team showed up on time every morning and got the work done on the agreed-upon timeline. Bill was easy to work with an accommodated several special requests and his team did a fantastic job on the project. I would hire him again for any construction or home improvement needs!"

Thomas H on June 2025


Avatar for Galaxy Construction

Galaxy Construction

4.92(
13
)
Approved Pro

Galaxy Construction

4.92(
13
)
Approved Pro
Super Service Award
Customers say: Quick response
57 local quotes requested
26 years of experience

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We specialize in home improvement but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Galaxy construction did a awesome job on replacing my porch. Ed listened to what I wanted done, and did it. Every one that worked on the porch were very nice and did a great job."

Helen L on September 2025

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We specialize in home improvement but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Galaxy construction did a awesome job on replacing my porch. Ed listened to what I wanted done, and did it. Every one that worked on the porch were very nice and did a great job."

Helen L on September 2025


First Class Building & Remodeling, LLC

4.56(
25
)
Approved Pro

First Class Building & Remodeling, LLC

4.56(
25
)
Approved Pro
Customers say: True professional
34 years of experience
Free onsite estimate

First Class Building & Remodeling, LLC, was established in 1991. We are a family-owned company which includes my wife and I. We have great subcontractors, many are father and son teams, and have been with our company for over 30 years. I have 38-years of remodeling experience. We can handle any project pertaining to your home from exterior to interior. We take great pride in our work and will remodel your home as if it were our own. We are committed to your complete satisfaction. We enjoy the design aspect of remodeling and you will benefit from our years of design and build experience. Our state-of-the art CAD software will help you visualize your project and begin with confidence. Our knowledge and experience in construction will assure you a well-built project that will last a lifetime! We have long-standing relationships with our subcontractors, who are dedicated and professional. We also offer a 1-year labor warranty We look forward to hearing from and working with you.

"Glenn is extremely knowledgable about what he is doing."

Susan P on September 2024

First Class Building & Remodeling, LLC, was established in 1991. We are a family-owned company which includes my wife and I. We have great subcontractors, many are father and son teams, and have been with our company for over 30 years. I have 38-years of remodeling experience. We can handle any project pertaining to your home from exterior to interior. We take great pride in our work and will remodel your home as if it were our own. We are committed to your complete satisfaction. We enjoy the design aspect of remodeling and you will benefit from our years of design and build experience. Our state-of-the art CAD software will help you visualize your project and begin with confidence. Our knowledge and experience in construction will assure you a well-built project that will last a lifetime! We have long-standing relationships with our subcontractors, who are dedicated and professional. We also offer a 1-year labor warranty We look forward to hearing from and working with you.

"Glenn is extremely knowledgable about what he is doing."

Susan P on September 2024


LJL General Contracting, LLC

5.00(
3
)
Approved Pro

LJL General Contracting, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. We pay close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"My contractor went above and beyond to create a beautiful basement. I would highly recommend him. He kept us abreast of every move. Did extra touches throughout. We definitely will hire him again. "

Charleen A on May 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. We pay close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"My contractor went above and beyond to create a beautiful basement. I would highly recommend him. He kept us abreast of every move. Did extra touches throughout. We definitely will hire him again. "

Charleen A on May 2025


Avatar for Innozign Contracting, LLC

Innozign Contracting, LLC

4.88(
8
)
Approved Pro

Innozign Contracting, LLC

4.88(
8
)
Approved Pro
Customers say: Quick response
19 years of experience
Free onsite estimate

Innozign (In-no-zign) Contracting, LLC has been doing business for our clients in New Jersey since 2006. We are a licensed and insured design construction company specializing in remodeling, major renovations, additions and new construction in both residential and commercial applications. While delivering personalized service and making the experience seamless, we take our commitments very seriously in making sure everything to the smallest detail is done right.

"Exceptional Work and Professionalism Justin from Innozign Contracting did an outstanding job building a bathroom in my mother’s home. He is professional, detail-oriented, and committed to high-quality work. From the start, he listened carefully, created a solid schedule, and stuck to it while ensuring everything was done to perfection. His kindness, patience, and adaptability shined through as he worked with my mom to complete the job, making the process smooth and stress-free. The finished bathroom looks fantastic, and I highly recommend Innozign Contracting to anyone looking for a skilled and reliable contractor! "

Eric M on February 2025

Innozign (In-no-zign) Contracting, LLC has been doing business for our clients in New Jersey since 2006. We are a licensed and insured design construction company specializing in remodeling, major renovations, additions and new construction in both residential and commercial applications. While delivering personalized service and making the experience seamless, we take our commitments very seriously in making sure everything to the smallest detail is done right.

"Exceptional Work and Professionalism Justin from Innozign Contracting did an outstanding job building a bathroom in my mother’s home. He is professional, detail-oriented, and committed to high-quality work. From the start, he listened carefully, created a solid schedule, and stuck to it while ensuring everything was done to perfection. His kindness, patience, and adaptability shined through as he worked with my mom to complete the job, making the process smooth and stress-free. The finished bathroom looks fantastic, and I highly recommend Innozign Contracting to anyone looking for a skilled and reliable contractor! "

Eric M on February 2025


Avatar for Blue Umbrella Waterproofing, LLC

Blue Umbrella Waterproofing, LLC

4.99(
50
)
Approved Pro

Blue Umbrella Waterproofing, LLC

4.99(
50
)
Approved Pro
Customers say: Quick response
27 local quotes requested
8 years of experience

NJ's trusted basement, crawl space, and foundation experts, we guarantee a drier, safer healthier home. Licensed, bonded & insured (HIC 13VH09834500) with thousand of satisfied customers, we provide top-quality waterproofing and repair systems with lifetime warranties. For basement leaks, damp crawl spaces, or bowing walls. As a family-owned business, not a franchise, we deliver superior personalized service with experienced professionals who provide higher quality work and attention to detail that franchise operations cannot match. Call us today. Free consultations - Lifetime warranties available - Award winning company

"Lovely company. Very personable. I worked with Tony who was easy to communicate with and readily available for any questions. The owner, Steve, came to my home and looked over the completed worked and helped me with questions about my dehumidifier. Blue Umbrella was able to troubleshoot and tailor the job to fit my specific basement needs. I also feel comfortable that if there is ever an issue - they will continue to support the work they did for me. My job consisted of : 1930's brick basement and dirt crawl space/ french drain, sump pump, encapsulation, dehumidifier, masonry repair, and crawl space door. Asbury Park , NJ."

Neve M on August 2025

NJ's trusted basement, crawl space, and foundation experts, we guarantee a drier, safer healthier home. Licensed, bonded & insured (HIC 13VH09834500) with thousand of satisfied customers, we provide top-quality waterproofing and repair systems with lifetime warranties. For basement leaks, damp crawl spaces, or bowing walls. As a family-owned business, not a franchise, we deliver superior personalized service with experienced professionals who provide higher quality work and attention to detail that franchise operations cannot match. Call us today. Free consultations - Lifetime warranties available - Award winning company

"Lovely company. Very personable. I worked with Tony who was easy to communicate with and readily available for any questions. The owner, Steve, came to my home and looked over the completed worked and helped me with questions about my dehumidifier. Blue Umbrella was able to troubleshoot and tailor the job to fit my specific basement needs. I also feel comfortable that if there is ever an issue - they will continue to support the work they did for me. My job consisted of : 1930's brick basement and dirt crawl space/ french drain, sump pump, encapsulation, dehumidifier, masonry repair, and crawl space door. Asbury Park , NJ."

Neve M on August 2025


"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 First Choice Waterproofing, LLC

First Choice Waterproofing, LLC

4.67(
99
)
Approved Pro

First Choice Waterproofing, LLC

4.67(
99
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
109 local quotes requested

At First Choice Waterproofing, LLC, we take great pride in our experience, expertise, quality, and customer service that we provide. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

" First Choice did a great job, easy to work with, Mike addressed all questions, project completed on time, work area left clean and everyone great to work with. They offered great financing as well."

Rory T on November 2025

At First Choice Waterproofing, LLC, we take great pride in our experience, expertise, quality, and customer service that we provide. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

" First Choice did a great job, easy to work with, Mike addressed all questions, project completed on time, work area left clean and everyone great to work with. They offered great financing as well."

Rory T on November 2025


Avatar for Basement Gurus, LLC

Basement Gurus, LLC

4.84(
151
)
Approved Pro

Basement Gurus, LLC

4.84(
151
)
Approved Pro
Customers say: Quality work
882 local quotes requested
15 years of experience

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025


Avatar for Gilligan Home Development Group, LLC

Gilligan Home Development Group, LLC

4.64(
51
)
Approved Pro

Gilligan Home Development Group, LLC

4.64(
51
)
Approved Pro
Super Service Award
Customers say: True professional
38 local quotes requested
7 years of experience

With over 40 years of experience, Gilligan Home Development Group LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today!

"Jason and his team were amazing. We had some masonry work done and a new deck built. From the masonry work to the decking to the railing,..it was flawless. They also showed up on time and finished on time. . The end results exceeded our expectations. Soo happy we chose them!"

Suzanne B on September 2025

With over 40 years of experience, Gilligan Home Development Group LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today!

"Jason and his team were amazing. We had some masonry work done and a new deck built. From the masonry work to the decking to the railing,..it was flawless. They also showed up on time and finished on time. . The end results exceeded our expectations. Soo happy we chose them!"

Suzanne B on September 2025

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Basement Leak Repair questions, answered by experts

In many cases, yes, a damp basement can be bad for your health. Not only can damp air affect your lungs, but it can promote mold growth and pest infestation. Mold spores can be dangerous to breathe in, as can waste particles from insects and rodents attracted to the moisture. Damp, moldy air can also move up into your living area. As such, it’s crucial to fix any basement moisture problems as soon as they crop up.

When a backflow valve fails, wastewater will flow back into your system, contaminating your drinking water. You’ll immediately notice backflow valve failure from a rotten smell and brown water coming from faucets. Get in contact with a septic pro or a plumber immediately if you suspect this has happened to you.

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.

To determine if your basement walls are suitable for finishing, assess their structural integrity and moisture conditions. Look for any signs of damage, such as cracks, bowing, or excessive moisture. Ensure proper drainage and address any underlying issues before proceeding. 

Consult with a professional if you're uncertain about the structural stability or potential risks associated with finishing your basement walls.

Yes, you can finish a basement that leaks, as long as you address the leak first. Before finishing a basement, you’ll need to repair any cracks in the walls and waterproof the basement to prevent future leaks. It’s much harder to clean up a water leak from a finished basement than an unfinished one, so preemptively addressing any leaking areas prevents expensive repairs in the future.

The Watchung, NJ homeowners’ guide to basement leak repair services

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