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TRUSTED BY MENDHAM, NJ HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon108
    Verified basement leak repair services reviews

Find Basement leak repair pros in Mendham

"This was the 4th or 5th project that we have done with Monk’s and as always we were very pleased with the outcome. Our Project Manger Ward, was very professional and attentive, making sure every last detail was addressed. The painting team, led by Gustavo, was extremely professional and courteous. Their attention to detail was impressive - All in all, we were quite pleased with the project and will not hesitate to hire Monk’s again."

Mike F on October 2025

Along with the Monk's Kitchen & Bath Design Studio, we are a full-service home improvement provider. Monk's will help you plan, design, and purchase everything you need for a remodel. Then our expert craftsmen will install everything and our painters will come and complete the job.

"This was the 4th or 5th project that we have done with Monk’s and as always we were very pleased with the outcome. Our Project Manger Ward, was very professional and attentive, making sure every last detail was addressed. The painting team, led by Gustavo, was extremely professional and courteous. Their attention to detail was impressive - All in all, we were quite pleased with the project and will not hesitate to hire Monk’s again."

Mike F on October 2025


Avatar for Quality 1st Basement Systems

Quality 1st Basement Systems

359 RT-35
4.51(
289
)
Approved Pro

Quality 1st Basement Systems

359 RT-35
4.51(
289
)
Approved Pro
Customers say: Super punctual
293 local quotes requested
39 years of experience

Quality 1st Basement Systems has been helping homeowners improve their homes for over 20 years. We have currently helped over 6,000 homeowners with All Things Basementy by designing effective solutions for their home’s needs. Whether our homeowners are interested in waterproofing a wet basement, fixing cracked foundation walls, insulating their crawl spaces, finishing their basements with mold-resistant materials, and raising concrete slabs, we can help! We’re currently the largest waterproofing company serving both residential and commercial clients in the tri-state area and are continuing to grow. As a member of the internationally renowned Basement Systems, Inc. network and Foundation Supportworks, Inc. network, we have global resources, but provide local service! The Basement Systems network thoroughly trains our employees at the Basement Systems, Inc. corporate headquarters in CT. Our hard work and dedication to our customers have earned us an A+ rating with the Better Business Bureau and several Super Service Awards from Angie’s List. We service most of New Jersey, all 5 boroughs of New York City and certain parts of Pennsylvania. Thousands of homeowners have experienced the Quality 1st Basement Systems difference. We invite you to do your homework and check out our credentials and compare. Put our experience and integrity to work protecting your investment. Our reputation exceeds all others because of our culture of WOW customer service.

"Everything went smoothly"

Hector R on December 2023

Quality 1st Basement Systems has been helping homeowners improve their homes for over 20 years. We have currently helped over 6,000 homeowners with All Things Basementy by designing effective solutions for their home’s needs. Whether our homeowners are interested in waterproofing a wet basement, fixing cracked foundation walls, insulating their crawl spaces, finishing their basements with mold-resistant materials, and raising concrete slabs, we can help! We’re currently the largest waterproofing company serving both residential and commercial clients in the tri-state area and are continuing to grow. As a member of the internationally renowned Basement Systems, Inc. network and Foundation Supportworks, Inc. network, we have global resources, but provide local service! The Basement Systems network thoroughly trains our employees at the Basement Systems, Inc. corporate headquarters in CT. Our hard work and dedication to our customers have earned us an A+ rating with the Better Business Bureau and several Super Service Awards from Angie’s List. We service most of New Jersey, all 5 boroughs of New York City and certain parts of Pennsylvania. Thousands of homeowners have experienced the Quality 1st Basement Systems difference. We invite you to do your homework and check out our credentials and compare. Put our experience and integrity to work protecting your investment. Our reputation exceeds all others because of our culture of WOW customer service.

"Everything went smoothly"

Hector R on December 2023


Avatar for Groundworks

Groundworks

2624 Hamilton Blvd
4.57(
225
)
Approved Pro

Groundworks

2624 Hamilton Blvd
4.57(
225
)
Approved Pro
Customers say: Super punctual
51 local quotes requested
21 years of experience

Established in 2004, Groundworks is a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across New Jersey, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 13VH11822900 (NJ)

"Working with DJ from Groundworks (Select Basement) has been an outstanding experience. After struggling with various contractors who either failed to resolve our water issues or were unprofessional, DJ and his team truly stood out. DJ was incredibly helpful, patient, and responsive throughout the entire process. Our home is a ranch with 225 linear feet around the perimeter, and while other contractors insisted on installing a French drain for the entire length, DJ recommended a more targeted approach. He proposed installing the French drain for just 80 linear feet, focusing only on the areas where water intrusion was likely. His thorough explanations and prompt responses to all our questions were greatly appreciated. The workers arrived on time, maintained a clean work environment, and completed the job as promised. If we could give 10 stars, we would! Groundworks is a highly professional and honest company that didn't try to inflate the scope of work to charge us more. We wholeheartedly recommend them."

Elina B on October 2024

Established in 2004, Groundworks is a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across New Jersey, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 13VH11822900 (NJ)

"Working with DJ from Groundworks (Select Basement) has been an outstanding experience. After struggling with various contractors who either failed to resolve our water issues or were unprofessional, DJ and his team truly stood out. DJ was incredibly helpful, patient, and responsive throughout the entire process. Our home is a ranch with 225 linear feet around the perimeter, and while other contractors insisted on installing a French drain for the entire length, DJ recommended a more targeted approach. He proposed installing the French drain for just 80 linear feet, focusing only on the areas where water intrusion was likely. His thorough explanations and prompt responses to all our questions were greatly appreciated. The workers arrived on time, maintained a clean work environment, and completed the job as promised. If we could give 10 stars, we would! Groundworks is a highly professional and honest company that didn't try to inflate the scope of work to charge us more. We wholeheartedly recommend them."

Elina B on October 2024


Avatar for Wall Masters Group LLC

Wall Masters Group LLC

Based In
5.00(
3
)
Approved Pro

Wall Masters Group LLC

Based In
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 local quotes requested

At Wall Masters Group (WMG), we’ve been redefining spaces with innovative textures, depth, and color for over 10 years. Founded by artist Luis Prendes, WMG brings a unique artistic vision to custom and creative painting, remodeling and construction projects. From intricate finishes to bold architectural enhancements, we specialize in transforming ordinary spaces into extraordinary works of art. Whether it's a new custom kitchen, bathroom or basement remodel we strive to satisfy all of our customers and will go the extra mile to make sure you're completely satisfied. Our team of skilled technicians is passionate about their craft, blending artistry with precision to deliver unparalleled results. We pride ourselves on a collaborative approach, partnering with clients every step of the way—from the initial consultation to the final brushstroke or beam installation. With meticulous attention to detail and a commitment to excellence, we ensure every project exceeds expectations. Bring your vision to life with WMG. Call or click for your personalized quote today!

"Very creative ideas. The walls came out better than expected. They are artist!!!"

Luisa C on October 2025

At Wall Masters Group (WMG), we’ve been redefining spaces with innovative textures, depth, and color for over 10 years. Founded by artist Luis Prendes, WMG brings a unique artistic vision to custom and creative painting, remodeling and construction projects. From intricate finishes to bold architectural enhancements, we specialize in transforming ordinary spaces into extraordinary works of art. Whether it's a new custom kitchen, bathroom or basement remodel we strive to satisfy all of our customers and will go the extra mile to make sure you're completely satisfied. Our team of skilled technicians is passionate about their craft, blending artistry with precision to deliver unparalleled results. We pride ourselves on a collaborative approach, partnering with clients every step of the way—from the initial consultation to the final brushstroke or beam installation. With meticulous attention to detail and a commitment to excellence, we ensure every project exceeds expectations. Bring your vision to life with WMG. Call or click for your personalized quote today!

"Very creative ideas. The walls came out better than expected. They are artist!!!"

Luisa C on October 2025


Avatar for Arid Basement Waterproofing

Arid Basement Waterproofing

315 Shea Drive
4.86(
85
)
Approved Pro

Arid Basement Waterproofing

315 Shea Drive
4.86(
85
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor 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

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


Avatar for American A-1 Waterproofing

American A-1 Waterproofing

198 Belmont Ave
4.74(
141
)
Approved Pro

American A-1 Waterproofing

198 Belmont Ave
4.74(
141
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
21 local quotes requested

American A-1 Waterproofing has an A+ Rating with the BBB and has never had a complaint in our 33 years of business. American A-1 Waterproofing is certified as a "Certified Waterproofing Specialist" (CWS) by the National Association of Waterproofing and Structural Repair Contractors. American A-1 Waterproofing is the only basement waterproofing company in New Jersey that is certified by the NAWSRC. Other companies in NJ may be "members", however we are the only company actually "certified" by the NAWSRC. We are listed as Water Plus, Inc. / American A-1 Waterproofing on the NAWSRC website. We are licensed, bonded and insured. We do not use subcontractors, we do all the work ourselves. American A-1 Waterproofing is family owned and operated. Same owner and same business name for 25 years. All work is guaranteed with a 25 year tranferrable warranty against water seepage except in the event of a prolonged power outage or a natural disaster. A natural disaster is an earthquake, cyclone,hurricane or any act of God beyond American A-1's control.

"Extremely knowledgeable and highly professional. Would never even think of using/hiring another waterproofing company. Elaborate waterproofing system put in by this company that has allowed us to breathe easier during flooding rains. They fully understand water flow, slope, and all aspects of keeping the inside of our house “dry”. Lou and the group are tremendous and care about the product they produce."

Andre E on May 2025

American A-1 Waterproofing has an A+ Rating with the BBB and has never had a complaint in our 33 years of business. American A-1 Waterproofing is certified as a "Certified Waterproofing Specialist" (CWS) by the National Association of Waterproofing and Structural Repair Contractors. American A-1 Waterproofing is the only basement waterproofing company in New Jersey that is certified by the NAWSRC. Other companies in NJ may be "members", however we are the only company actually "certified" by the NAWSRC. We are listed as Water Plus, Inc. / American A-1 Waterproofing on the NAWSRC website. We are licensed, bonded and insured. We do not use subcontractors, we do all the work ourselves. American A-1 Waterproofing is family owned and operated. Same owner and same business name for 25 years. All work is guaranteed with a 25 year tranferrable warranty against water seepage except in the event of a prolonged power outage or a natural disaster. A natural disaster is an earthquake, cyclone,hurricane or any act of God beyond American A-1's control.

"Extremely knowledgeable and highly professional. Would never even think of using/hiring another waterproofing company. Elaborate waterproofing system put in by this company that has allowed us to breathe easier during flooding rains. They fully understand water flow, slope, and all aspects of keeping the inside of our house “dry”. Lou and the group are tremendous and care about the product they produce."

Andre E on May 2025


Avatar for All Around Renovations LLC

All Around Renovations LLC

96 Mountain Avenue
4.77(
75
)
Approved Pro

All Around Renovations LLC

96 Mountain Avenue
4.77(
75
)
Approved Pro
Customers say: Quality work
32 local quotes requested
20 years of experience

We are a Home Improvement Contractor you can count on to get the job done, with quality services at affordable prices. All sub-contractors are licensed and fully insured. We are also a 203k construction loan approved contractor. To set up a free home or business estimate, please call Michael at 973-233-8162 (M-F 7AM-5PM) or email me at [email protected]. Check out our website - www.allaroundrenovationsnj.com

"We hired Michael to renovate our 100-year-old farmhouse-style colonial, and the results were outstanding. He managed a full kitchen overhaul, including an addition that expanded the space and added a hallway—dramatically improving the home's flow. He also built a beautiful new deck, refinished the original oak floors, painted every room, and updated two bathrooms, including a custom shower with French stone tile. Michael’s communication was excellent—clear, timely, and always professional. His attention to detail and high-quality craftsmanship showed in every phase of the project. Most importantly, he took a truly consultative approach, offering thoughtful guidance while always respecting our vision. Highly recommend!"

Shawn R on July 2025

We are a Home Improvement Contractor you can count on to get the job done, with quality services at affordable prices. All sub-contractors are licensed and fully insured. We are also a 203k construction loan approved contractor. To set up a free home or business estimate, please call Michael at 973-233-8162 (M-F 7AM-5PM) or email me at [email protected]. Check out our website - www.allaroundrenovationsnj.com

"We hired Michael to renovate our 100-year-old farmhouse-style colonial, and the results were outstanding. He managed a full kitchen overhaul, including an addition that expanded the space and added a hallway—dramatically improving the home's flow. He also built a beautiful new deck, refinished the original oak floors, painted every room, and updated two bathrooms, including a custom shower with French stone tile. Michael’s communication was excellent—clear, timely, and always professional. His attention to detail and high-quality craftsmanship showed in every phase of the project. Most importantly, he took a truly consultative approach, offering thoughtful guidance while always respecting our vision. Highly recommend!"

Shawn R on July 2025


Avatar for RR Building and Remodeling

RR Building and Remodeling

New on AngiNew on Angi
Approved Pro

RR Building and Remodeling

New on AngiNew on Angi
Approved Pro
134 local quotes requested
1 years of experience

RR Building and remodeling is a family owned and operated business committed to helping turn our customer's visions into reality. What sets us apart is our personalized approach and unwavering commitment to quality. Our team of skilled in house craftsmen bring decades of combined experience to every project, ensuring meticulous attention to detail and superior craftsmanship. Our services include: New home construction, renovations and additions, foundation work, bathroom remodels, custom carpentry, masonry, decorative concrete, and overall project management. By blending innovative trends with timeless craftsmanship, RR Building and Remodeling aims to create spaces that not only impress but also stand the test of time, ensuring your home remains both stylish and functional for years to come.

RR Building and remodeling is a family owned and operated business committed to helping turn our customer's visions into reality. What sets us apart is our personalized approach and unwavering commitment to quality. Our team of skilled in house craftsmen bring decades of combined experience to every project, ensuring meticulous attention to detail and superior craftsmanship. Our services include: New home construction, renovations and additions, foundation work, bathroom remodels, custom carpentry, masonry, decorative concrete, and overall project management. By blending innovative trends with timeless craftsmanship, RR Building and Remodeling aims to create spaces that not only impress but also stand the test of time, ensuring your home remains both stylish and functional for years to come.


"Perfect. No other words needed. On time. Polite. Professional. Worked like dogs all day. Knew exactly what they were getting themselves and how to get it done. I will definitely hire them again for my next project."

Scott H on October 2025

With over 9 years of handyman work experience. - Handymen - Remodeling Kitchens - Bathrooms - Flooring - Pressure Washing - and much more. licensed,Bonded and insured!!

"Perfect. No other words needed. On time. Polite. Professional. Worked like dogs all day. Knew exactly what they were getting themselves and how to get it done. I will definitely hire them again for my next project."

Scott H on October 2025


Avatar for Mr. Handyman of S. Orange/Westfield/Scotch Plains & Metuchen

Mr. Handyman of S. Orange/Westfield/Scotch Plains & Metuchen

499 MORRIS AVE
4.61(
476
)
Approved Pro

Mr. Handyman of S. Orange/Westfield/Scotch Plains & Metuchen

499 MORRIS AVE
4.61(
476
)
Approved Pro
Customers say: Super punctual
1058 local quotes requested
17 years of experience

Winner of the 2020 Angie's List Super Service Award, a winner nine out of the past 10 years. We are a locally owned family business supported by a national franchise company which is North America's most trusted handyman company. For more than 15 years we've consistently hired experienced, reliable craftsmen​ (not sub-contractors) who are licensed, insured, bonded and background checked. That means you'll receive consistently high quality work that is 100% guaranteed. What sets us apart​: Mr. Handyman's professionals arrive in branded uniforms and vans that are stocked with every tool they'll need for your job. Our on-time record is second to none, and we arrive ready to work. One phone call to Mr. Handyman hires professionals who complete your entire "To Do" list. Every task whether major or minor home repair is prioritized according to your needs. Rather than calling a specialist for drywall repair and another contractor for rain gutter repair, your neighbors consistently choose us for all their home improvement needs. Mr. Handyman can complete a variety of projects for you, from installing doors, to tiling your bathroom, repairing your deck and much more.

"Had to reschedule my original appointment due to their late arrival for the first scheduled time. The office admin was helpful in taking care of that. Once they did arrive on a later date, the work was done quickly, efficiently and of high-quality. I will consider them for an additional project in the future."

Joe M on February 2024

Winner of the 2020 Angie's List Super Service Award, a winner nine out of the past 10 years. We are a locally owned family business supported by a national franchise company which is North America's most trusted handyman company. For more than 15 years we've consistently hired experienced, reliable craftsmen​ (not sub-contractors) who are licensed, insured, bonded and background checked. That means you'll receive consistently high quality work that is 100% guaranteed. What sets us apart​: Mr. Handyman's professionals arrive in branded uniforms and vans that are stocked with every tool they'll need for your job. Our on-time record is second to none, and we arrive ready to work. One phone call to Mr. Handyman hires professionals who complete your entire "To Do" list. Every task whether major or minor home repair is prioritized according to your needs. Rather than calling a specialist for drywall repair and another contractor for rain gutter repair, your neighbors consistently choose us for all their home improvement needs. Mr. Handyman can complete a variety of projects for you, from installing doors, to tiling your bathroom, repairing your deck and much more.

"Had to reschedule my original appointment due to their late arrival for the first scheduled time. The office admin was helpful in taking care of that. Once they did arrive on a later date, the work was done quickly, efficiently and of high-quality. I will consider them for an additional project in the future."

Joe M on February 2024

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Basement Leak Repair questions, answered by experts

Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.

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.

Many prevention methods can be used individually or in combination to waterproof your basement. Some of the most common waterproofing methods include:

  • Using dehumidifiers 

  • Silicate concrete sealers

  • Vapor barriers 

  • Baseboard channels 

  • Drain tile systems

  • Waterproofing paint

  • Drainage systems

  • Epoxy injection

  • Interior French drains

  • Exterior excavation and waterproofing

  • Cement waterproofing

  • Weep tiles

  • Liquid membrane

  • Sheet membrane 

  • Yard grading

  • Gutters and downspouts

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.

If you’ll be digging up your floor to get access to your pipes when putting in a sewer backflow preventer, this would also be a good time to take care of any other plumbing issues or renovations. For example, you could install additional pipes for a basement bathroom. Since the floor will be sealed over with concrete when you’re done, now’s a good time to take care of those bigger tasks.

The Mendham, 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.