Top-rated basement leak repair pros.

Get matched with top basement leak repair pros in Mahwah, NJ

There are 36 highly-rated local basement leak repair pros.

Need help with a project related to basement leak repair services?
Select your specific project to find the pro for you.

TRUSTED BY HOMEOWNERS

Average homeowner rating star icon4.6
Average homeowner rating
Verified reviews icon68
Verified basement leak repair services reviews

Basement leak repair pros in Mahwah

Avatar for Proworks Interiors
Proworks Interiors
250 Route 32 Ste 104
5.00(
6
)
•
Approved Pro
Proworks Interiors
250 Route 32 Ste 104
5.00(
6
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

Transform your home with Proworks Interiors. Our expert team in the Tri-State Area specializes in finished basements, Bathrooms, Kitchens, and renovations. Experience top-notch craftsmanship and attention to detail. Contact us today for your home transformation needs.

"We highly recommend Proworks interiors ! John responded to our inquiry for a finished basement quickly and was at our house to provide an estimate within 24 hours. He is very detail oriented , and was extremely helpful in creating a plan for our space. Throughout the entire process, he was a great communicator, promptly responding to all of our questions and concerns . He made sure every detail was exactly to our liking. We would definitely use proworks interiors again !"

Morgan V on December 2024

Transform your home with Proworks Interiors. Our expert team in the Tri-State Area specializes in finished basements, Bathrooms, Kitchens, and renovations. Experience top-notch craftsmanship and attention to detail. Contact us today for your home transformation needs.

"We highly recommend Proworks interiors ! John responded to our inquiry for a finished basement quickly and was at our house to provide an estimate within 24 hours. He is very detail oriented , and was extremely helpful in creating a plan for our space. Throughout the entire process, he was a great communicator, promptly responding to all of our questions and concerns . He made sure every detail was exactly to our liking. We would definitely use proworks interiors again !"

Morgan V on December 2024


Avatar for Longo Constuction & Electrical Inc
Longo Constuction & Electrical Inc
411 Greenwood Ave.
4.92(
12
)
•
Approved Pro
Longo Constuction & Electrical Inc
411 Greenwood Ave.
4.92(
12
)
•
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 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

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


Avatar for Kremar Handyman Services LLC
Kremar Handyman Services LLC
.
5.00(
6
)
•
Approved Pro
Kremar Handyman Services LLC
.
5.00(
6
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 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.

"Perfect Miri and his team was wonderful, Im so happy with the job they did for me I definitely recommend Krermar to anyone who is interested doing general construction. Thank you Krermar."

Besmir G on November 2024

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.

"Perfect Miri and his team was wonderful, Im so happy with the job they did for me I definitely recommend Krermar to anyone who is interested doing general construction. Thank you Krermar."

Besmir G on November 2024


Avatar for WEATHER-TITE WATERPROOFING INC.
WEATHER-TITE WATERPROOFING INC.
510 Sylvan St
4.87(
92
)
•
Approved Pro
WEATHER-TITE WATERPROOFING INC.
510 Sylvan St
4.87(
92
)
•
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
68 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.

"Bob was very quick to respond and came to the house right away to provide a free estimate. The work was done quickly and his crew did a great job with installation and clean up afterwards. The system works great and I haven't had water in the basement since the installation."

James G on January 2024

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.

"Bob was very quick to respond and came to the house right away to provide a free estimate. The work was done quickly and his crew did a great job with installation and clean up afterwards. The system works great and I haven't had water in the basement since the installation."

James G on January 2024


Avatar for Traditional Remodeling LLC
Traditional Remodeling LLC
20 Memorial Ct
4.66(
29
)
•
Approved Pro
Traditional Remodeling LLC
20 Memorial Ct
4.66(
29
)
•
Approved Pro
Customers say: Quality work
47 local quotes requested
32 years of experience

For over 30 years, owner George Ellenberg, has been building high quality structures. George merged a wealth of experience and skill into a company that has earned a markable reputation as one of the leading contracting companies. George Ellenberg, and his team of professional architects, licensed plumbers and licensed electricians, combine their strengths to create an unbeatable force in construction.

"George and his team did a fantastic job with remodeling our bathroom. Unbelievably smooth process from start to finish. Would and will hire again!!"

Jim R on April 2024

For over 30 years, owner George Ellenberg, has been building high quality structures. George merged a wealth of experience and skill into a company that has earned a markable reputation as one of the leading contracting companies. George Ellenberg, and his team of professional architects, licensed plumbers and licensed electricians, combine their strengths to create an unbeatable force in construction.

"George and his team did a fantastic job with remodeling our bathroom. Unbelievably smooth process from start to finish. Would and will hire again!!"

Jim R on April 2024


Avatar for Picasso Construction LLC
Picasso Construction LLC
26-10 Southern Drive
5.00(
6
)
•
Approved Pro
Picasso Construction LLC
26-10 Southern Drive
5.00(
6
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

We are 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. We are experts in bathroom renovation, kitchen renovation, finished basement renovations and complete home renovations. Accurate knowledge of our trade, experience, 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. Please give us a call today!

"Sergio and his crew were fantastic to work with. The best compliment is hearing my wife say,time and again: I just love my bathroom!"

Gustavo V on October 2023

We are 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. We are experts in bathroom renovation, kitchen renovation, finished basement renovations and complete home renovations. Accurate knowledge of our trade, experience, 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. Please give us a call today!

"Sergio and his crew were fantastic to work with. The best compliment is hearing my wife say,time and again: I just love my bathroom!"

Gustavo V on October 2023


Avatar for Dynamic Design & Remodeling
Dynamic Design & Remodeling
500 Post Road East
5.00(
8
)
•
Approved Pro
Dynamic Design & Remodeling
500 Post Road East
5.00(
8
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
52 local quotes requested

From start to finish let us help you with your home renovation and home remodeling project. Whether you need your kitchen remodeled, your bathroom remodeled, a roofing project or any other home improvement project completed, our licensed home renovation contractors will be with you every step of the way. We are happy to provide design work for your kitchen, bathroom, bedrooms, basements or any other home project you are seeking. We will provide you with multiple photo realistic renderings and 360 degree views as well as complete floor plans and elevation maps so you can see your vision brought to life before the project begins. We take a comprehensive approach to your home renovation project, guiding you along the way, so that we come in on time and on budget. We pride ourselves on three things that set our work apart from all the rest. Communication. We will provide a detailed estimate and keep you updated throughout the entire project so you are confident in our process and are never left wondering where we are on the timeline. Highly skilled craftsmanship. Our licensed, experienced, and insured home remodeling contractors with direct references will ensure you get the highest quality of work for your project. Competitive pricing. With detailed and transparent pricing estimates we will deliver quality results at competitive prices. We are excited to work with you to bring your home remodeling vision to life. Contact us today for your estimate and to make your vision a reality.

"The team at Dynamic Design & Remodeling were superb. I hired them to do our basement and could not be happier with the result. Great craftsmanship, on budget, and on time. I'll definitely be using Justin and team for our next renovation."

Gabe R on March 2025

From start to finish let us help you with your home renovation and home remodeling project. Whether you need your kitchen remodeled, your bathroom remodeled, a roofing project or any other home improvement project completed, our licensed home renovation contractors will be with you every step of the way. We are happy to provide design work for your kitchen, bathroom, bedrooms, basements or any other home project you are seeking. We will provide you with multiple photo realistic renderings and 360 degree views as well as complete floor plans and elevation maps so you can see your vision brought to life before the project begins. We take a comprehensive approach to your home renovation project, guiding you along the way, so that we come in on time and on budget. We pride ourselves on three things that set our work apart from all the rest. Communication. We will provide a detailed estimate and keep you updated throughout the entire project so you are confident in our process and are never left wondering where we are on the timeline. Highly skilled craftsmanship. Our licensed, experienced, and insured home remodeling contractors with direct references will ensure you get the highest quality of work for your project. Competitive pricing. With detailed and transparent pricing estimates we will deliver quality results at competitive prices. We are excited to work with you to bring your home remodeling vision to life. Contact us today for your estimate and to make your vision a reality.

"The team at Dynamic Design & Remodeling were superb. I hired them to do our basement and could not be happier with the result. Great craftsmanship, on budget, and on time. I'll definitely be using Justin and team for our next renovation."

Gabe R on March 2025


Smart Design By Alex Contracting
Based In
5.00(
1
)
•
Approved Pro
Smart Design By Alex Contracting
Based In
5.00(
1
)
•
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
153 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

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


Avatar for star22home
star22home
22 Plainfield Ave
4.64(
74
)
•
Approved Pro
star22home
22 Plainfield Ave
4.64(
74
)
•
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
34 local quotes requested

Our mission is to service our customers in a prompt and professional manner. We do not consider a home improvement or remodeling project complete until the work is finished, the job site is clean, and the customer is completely satisfied. Licensed & Insured since 1997

"This is an overdue review. I hired Bernie and his team for a kitchen remodel in June 2021, after he did an excellent job with my three bathrooms in 2020. The kitchen remodel was also excellent. His works are efficient, hardworking and clean. My remodel took two weeks, as he had quoted and for the exact price he had quoted. I would hire him and his team again and I referred them to a coworker for her bathroom project. She was also very pleased with their work."

Maria C on January 2025

Our mission is to service our customers in a prompt and professional manner. We do not consider a home improvement or remodeling project complete until the work is finished, the job site is clean, and the customer is completely satisfied. Licensed & Insured since 1997

"This is an overdue review. I hired Bernie and his team for a kitchen remodel in June 2021, after he did an excellent job with my three bathrooms in 2020. The kitchen remodel was also excellent. His works are efficient, hardworking and clean. My remodel took two weeks, as he had quoted and for the exact price he had quoted. I would hire him and his team again and I referred them to a coworker for her bathroom project. She was also very pleased with their work."

Maria C on January 2025


Avatar for KFD General Construction, LLC
KFD General Construction, LLC
5.00(
2
)
•
Approved Pro
KFD General Construction, LLC
5.00(
2
)
•
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 local quotes requested

Family owned business with over 13 years experience - Builders - Garages/Barns/Sheds, Remodeling - Basements, Remodeling - General, Remodeling - Modular & Mobile Home - Decks -

"Great service and greta team . They respond quickly and with a very reasonable pricing. Higly recommended"

Meti t on January 2025

Family owned business with over 13 years experience - Builders - Garages/Barns/Sheds, Remodeling - Basements, Remodeling - General, Remodeling - Modular & Mobile Home - Decks -

"Great service and greta team . They respond quickly and with a very reasonable pricing. Higly recommended"

Meti t on January 2025

...
Showing 1-10 of 242

Basement leak repair services FAQs

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 homeowners guide to basement leak repair services
From average costs to expert advice, get all the answers you need to get your job done.
large white house on a rainy autumn day
•
Feb 5, 2025
Feb 5, 2025
Sump pump replacement costs depend on the type of unit you have and the cost of labor, which varies by region. Read on to find out more about what to expect.
cellar doors on the side of the house
•
Jan 20, 2025
Jan 20, 2025
When storm season is approaching, ensure you’re ready to go in case of an emergency. Explore our guide to budgeting for bulkhead replacement costs.
Basement living room with wet bar
•
Jan 14, 2025
Jan 14, 2025
An unfinished basement has a lot of potential for a family room or guest suite. So how much does it cost to finish a basement? Read on for all cost factors.
Basement living room with wet bar
•
Feb 27, 2025
Feb 27, 2025
These questions for professional contractors can help address your basement remodeling needs, design, and the best time to start the project.
mother and kids walking down stairs in home
•
Oct 22, 2024
Oct 22, 2024
Thinking of refinishing your basement and looking for basement remodel ideas? Check out 25 ways to transform your subterranean space.
A white house in the suburbs
•
Apr 24, 2025
Apr 24, 2025
There are a few different things that make a crawl space smell like sewage. This guide will help you find the issue and learn how to fix it.
Share project details to get started.