How much does basement waterproofing cost?

<div>The <a href="https://www.angi.com/articles/how-much-does-basement-waterproofing-cost.htm">cost of basement waterproofing</a> is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement. </div>

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Verified Reviews for Basement Leak Repair pros in Allendale, NJ

*The Angi rating for Basement Leak Repair companies in Allendale, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Leak Repair needs.

*The HomeAdvisor rating for Basement Leak Repair companies in Allendale, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Leak Repair needs.

Last update on August 27, 2025

Reviewed in December 2012
Searched for over an hour and eventually traced the leak to my dehumidifier which had a clogged drain and was leaking onto the floor. Did this for free. No charge.
Groundworks
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Reviewed in October 2024
I Hired This company to repair cracks in my brick facade which was causing leaks. They gave me an estimate and started the project right away. The leaks stopped. We haven’t had any problems since. the work was great. Definitely recommend!
Gotham Restoration Group
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Reviewed in July 2020
After literally years of chasing leaks in my flat roofs, John and his team got rid of all of them and they weren't even in my roof. He is the leak whisperer! His crew was great and on time, clean and professional. I couldn't recommend them enough!
Leak Stoppers Inc
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Reviewed in December 2020
I had a leak in my foundation in my crawl space and found General Brick Designs on Angie’s list. I had other contractors look at the problem but found Ed to be more thorough and knowledgable when he came to evaluate the problem. He came in with his crew, was on site the entire time and was able...
GENERAL BRICK DESIGNS
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Reviewed in September 2016
Great. Eddie the owner was fantastic. Identified the problem and advised what the solution would be. The crew that performed the work were excellent. They explained exactly what they were doing and were professional and courteous. Left the backyard cleaner than the way they found it.
E & M Waterproofing Inc
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Reviewed in December 2014
The job was done in a timely very professional manner. My wife was at home while they were doing the work and she felt very comfortable and respected. The concrete around the house was cut and new concrete was put in to fix the leaking problem. It now looks very neat and water is no longer...
Nunez Construction and Painting
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Reviewed in November 2012
When they came over to do the estimate they said we needed a masonry and not basement water proofing. They were very helpful. Very very professional. When we needed them they came out on time and were very good.
Just Right Painting & Contracting LLC
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Reviewed in March 2016
Had a little flood in the basement while doing laundry. Called at 8:15 AM on Saturday morning, and someone came by 9:30 AM. Turned out it was just a clog, but they are always so quick to respond and very helpful. We called them a few weeks ago when it was freezing cold out, and we had no...
Advanced Professional Plumbing Heating & Cooling
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Reviewed in October 2014
The provider thoroughly inspected our basement for leaks and recommended a french drain system. Fortunately, the need is not immediate.
Sundahl Restoration LLC
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Reviewed in July 2020
I can’t say enough positive things about them! The team was just wonderful. They were thorough, conscientious, professional, and dedicated to getting the job done right. They uncovered the source of the leak (which took removing bricks and stone), fixed it, waterproofed the roof, and put...
A.M. Shield Waterproofing Corp
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Basement leak repair pros in Allendale

Green Gable Contracting LLC

Green Gable Contracting LLC

Customers say: Quality work

Recommended by 96% of Angi customers

190 local quotes requested

We offer total home remodeling, bathroom, kitchen, attic and basement renovations and new additions. Green Gable Contracting is offering finance options.

"The bathroom renovation went very well. Price was very reasonable and the quality of work was excellent. Nick had answered any questions I had very quickly. Overall very satisfied."

Tommy Y on July 2025

We offer total home remodeling, bathroom, kitchen, attic and basement renovations and new additions. Green Gable Contracting is offering finance options.

"The bathroom renovation went very well. Price was very reasonable and the quality of work was excellent. Nick had answered any questions I had very quickly. Overall very satisfied."

Tommy Y on July 2025

Longo Constuction & Electrical Inc

Longo Constuction & Electrical Inc

Customers say: Quality work

Recommended by 100% of Angi customers

13 local quotes requested

Longo Construction Electrical Company my name is ALEX LONGO and I am the Owner I started the business 34 years ago .We are a full service company we are license for construction we are license for electrical and we are license for building we take care of designing We also have architects for bigger project I work closely with all my clients I gave my clients my cell number so they can reach me anytime of the day day or evening I also gave him my 24 hour number in case of an emergency I'm always available from start to finish on projects if you want a free estimate please give me a call I do estimates During the day or evenings and on Saturdays . We take care of small medium and large jobs I have my guys that work for me over 20 years you're free to leave the house with my care . We are fully insured.

"It went well. They did take a while to start because he was down workers."

Lisa T on April 2023

"It went well. They did take a while to start because he was down workers."

Lisa T on April 2023

Rockledge Remodeling NJ, LLC

99 Grand Street

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Approved Pro

Rockledge Remodeling NJ, LLC

99 Grand Street

New on AngiNew on Angi•

Approved Pro

71 local quotes requested

Free onsite estimate

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

WEATHER-TITE WATERPROOFING INC.

WEATHER-TITE WATERPROOFING INC.

Customers say: Quality work

Recommended by 93% of Angi customers

82 local quotes requested

Weather-tite Waterproofing is a family owned, full service basement waterproofing company that has been serving our customers since 1992.All work is performed by our trained,professional staff,never by sub-contractors.All inspections are done by owner after which you shall receive a free, written estimate.

"Excellent service. Courteous, prompt, clean, friendly and great attention to detail."

Shari M on July 2025

"Excellent service. Courteous, prompt, clean, friendly and great attention to detail."

Shari M on July 2025

Smart Design By Alex Contracting

Smart Design By Alex Contracting

Recommended by 100% of Angi customers

233 local quotes requested

We have the experience and dedication to get the job done right! Specializing in remodeling services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"I went with Alex and team to install a new roof. He was super easy to work with, had great prices and his install team did a phenomenal job. If you are debating what company to choose for your project, choose Alex. You will not be disappointed!"

Danielle S on March 2025

Customers say: Quick response

Recommended by 100% of Angi customers

43 local quotes requested

Properly licensed & insured construction company located in Northern New Jersey.

"Work was completed as promised. A few issues to address after completion were taken care of promptly. No one else in my experience comes back once they’ve been paid."

Chris L on June 2025

Properly licensed & insured construction company located in Northern New Jersey.

"Work was completed as promised. A few issues to address after completion were taken care of promptly. No one else in my experience comes back once they’ve been paid."

Chris L on June 2025

Kremar Handyman Services LLC

Kremar Handyman Services LLC

Customers say: Quick response

Recommended by 100% of Angi customers

23 local quotes requested

KRERMAR Handyman Services LLC is proud to offer diversity of services to ours customers like interior and exterior painting, masonry works, carpentry, general construction inside and outside the building and many more. We have a an 8 hour minimum on every project. We are proud to offer our customers premium quality work with an out standing service. We have more then 20 years experience and are proud in delivering the work in time and good quality. Choose KRERMAR Handyman services for any project you may have for small projects to complete home renovation. We promise best possible service with a fair competitive price. Contact Miri AGARAJ owner of the business at 2017027743 and schedule an appointment with free estimate. Keep your house in good condition with KRERMAR Handyman services LLC.

"Kremar Handyman Service does it again! Miri’s work is meticulous and he works though every project with his customers and truly listens to what they want and need. He is timely and he and his team are very professional. This time Kremar worked on the front walkway and stairs in the front of the house. The stairs were too steep and short and the walkway was charming but not practical or functional at any time of the year. Miri and his team created a lovely walkway that keeps the overall charm of the house but is now fully functional year-round and while I don’t look forward to shoveling, I am ready for it this year! I won’t look any further when it comes to home projects and highly recommend Kremar and the team for any project inside and out!"

Justine R on July 2025

Gold Eagle Construction LLC

Gold Eagle Construction LLC

Customers say: Quick response

Recommended by 100% of Angi customers

18 local quotes requested

We specialize in Basement French Drains and Sump pumps. We feel constant communication is key. Being able to fully understand each others views through out the project, will allow us to determine the best solution so that you can have piece of mind and focus on the ones that you love. we have over 35 years of combined experience. We are family operated. We Have a long line of perfectionism in our work.

"Edgar did an outstanding job. Everything was done in one day. Great price"

Kathleen D on August 2024

"Edgar did an outstanding job. Everything was done in one day. Great price"

Kathleen D on August 2024

BUILT-WELL BUILDERS, LLC

BUILT-WELL BUILDERS, LLC

Customers say: Terrific value

Recommended by 93% of Angi customers

27 local quotes requested

Built-Well Builders offers services in construction, remodeling, architectural design and interior design to both residential and commercial customers in Northern New Jersey. As a fully licensed and insured company with over 30 years of experience, we have garnered the respect of our clients and homeowners as well as industry professionals. Home buyers today want more out of their home than ever before. They want a creative and innovative home with a unique floor plan. At Built-Well, we understand the needs and desires of today’s home owners and buyers. Our homes, additions, and renovations are designed to suit your individual needs while incorporating style, luxury and convenience. Whether you are thinking of a custom home design, a whole house renovation, or a second story addition, Built-Well is uniquely positioned and qualified to provide attentive, expert service by an experienced, talented team from initial concept through construction.

"Our bathroom remodel went so much better than expected. Spring/Summer 2025…full gut down to the joists. By no means did it go perfectly as planned…if you expect it to, you probably shouldn’t do any remodeling. What made this project special was we faced numerous challenges and Grant @ BuiltWell was always available to talk it through and figure out how to fix it, providing options and alternatives. BW’s prices are fair especially for the quality of work. Grant partners with the best specialists…the demo, tile and painter stood out as outstanding. Grant 100% stands by his work, comes when he says, is communicative, and works with his family members who are local and help in a jam! I have numerous projects in my house that need to be done and I will just call Grant…no need to seek other bids…even if they’re lower, the comfort of working with Grant is worth it. You don’t need to hire Built Well, but not considering them will be your mistake!!"

Mitch S on August 2025

Arid Basement Waterproofing

Arid Basement Waterproofing

Customers say: Super punctual

Recommended by 90% of Angi customers

10 local quotes requested

Dira Associates, INC. d/b/a Arid Basement Waterproofing is a family owned & operated business. We are the oldest waterproofing company in New Jersey and one of the oldest in the tri-state area. We specialize in French drains and sump pumps and gladly give referrals in your neighborhood. We also are distributors for the best dehumidifier and battery backup pump system on the market. We DO NOT subcontract our work and our French drains come with a lifetime transferable guarantee.

"Arid was professional, helpful and did a great job waterproofing our basement!"

Briana A on May 2025

"Arid was professional, helpful and did a great job waterproofing our basement!"

Briana A on May 2025

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FAQs for basement leak repair projects in Allendale, NJ

The cost to finish a basement is $18,400 for the average homeowner. However, this cost could be as little as $2,800 or as much as $34,500, depending on the basement size and the materials needed. If your basement is already outfitted with electrical and plumbing, expect the cost to fall on the lower end.

For example, the drywall cost for this project averages around $1,750, but other features, like hiring a plumber, cost between $45 and $200 per hour.

The cost to remodel a basement is between $12,100 and $33,400 for the average homeowner. The price you pay can be as little as $3,500 or as much as $50,200, depending on the size and condition of your basement and the type of remodel you're doing.

If you're doing a simple project like adding a home office to your basement, you can expect to pay anywhere from $500 to $3,000. However, if you're adding a bathroom, which is an extensive project, you can expect to pay between $6,600 to $16,500.

Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.

Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms.

Finishing a basement is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.

Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in.

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

The Allendale, 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.

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