Top-rated basement waterproofing pros.

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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon26
    Verified basement waterproofing services reviews

Verified Reviews for Basement Waterproofing pros in Nassau, NY

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

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

Last update on October 28, 2025

Find Basement waterproofing pros in Nassau

Avatar for Adirondack Basement Systems, Inc.

Adirondack Basement Systems, Inc.

80 Sheehan St
4.72(
76
)
•Approved Pro

Adirondack Basement Systems, Inc.

80 Sheehan St
4.72(
76
)
•Approved Pro
Customers say: Super punctual
27 years of experience
Free onsite estimate

With over 25 years of professional experience, Adirondack Basement Systems is an upstanding Accredited Business with the Better Business Bureau, and members of Capital Region Builders and Remodelers Association! We have a fully trained staff to help you with all of your waterproofing, foundation support, concrete repair, and crawlspace needs. We provide free estimates and lifetime transferable warranties. If your basement is in need of care and attention, we're only a phone call away! We look forward to serving you! If you are planning on finishing or refinishing your basement, call us before you begin your project. We want to help you to protect your investment by making sure that your damp basement is dry all the time. Adirondack Basement Systems is an upstanding Accredited Business of the Better Business Bureau, and members of Capital Region Builders and Remodelers Association, National Association of Home Builders, and New York State Builders Association.

"It was a complex project. They were very careful with their procedures and raised sunken concrete sections next to the house and around a pool to allow for drainage. They filled the major cracks. They were courteous and on-time over several days. After many years the water in the basement problem has been resolved."

Robert D on September 2018

With over 25 years of professional experience, Adirondack Basement Systems is an upstanding Accredited Business with the Better Business Bureau, and members of Capital Region Builders and Remodelers Association! We have a fully trained staff to help you with all of your waterproofing, foundation support, concrete repair, and crawlspace needs. We provide free estimates and lifetime transferable warranties. If your basement is in need of care and attention, we're only a phone call away! We look forward to serving you! If you are planning on finishing or refinishing your basement, call us before you begin your project. We want to help you to protect your investment by making sure that your damp basement is dry all the time. Adirondack Basement Systems is an upstanding Accredited Business of the Better Business Bureau, and members of Capital Region Builders and Remodelers Association, National Association of Home Builders, and New York State Builders Association.

"It was a complex project. They were very careful with their procedures and raised sunken concrete sections next to the house and around a pool to allow for drainage. They filled the major cracks. They were courteous and on-time over several days. After many years the water in the basement problem has been resolved."

Robert D on September 2018

Avatar for Staats Masonry

Staats Masonry

2438 RT 9W
5.00(
18
)
•Approved Pro

Staats Masonry

2438 RT 9W
5.00(
18
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 local quotes requested

Staats Masonry is a small family owned business (Howard and Serena Staats). Over 30 years experience in Masonry and Construction services, with 2 years vocational schooling. Formally trained and certified by well known industry leaders such as Increte, Colormaker and Engrave-a-crete. We repair and replace foundation walls, install drainage systems, catch basins We build retaining walls, install bluestone patios/sidewalks, we also install concrete patios/sidewalk. Rebuild/repair porches/steps. Parge foundation walls. There’s no jobs too small.

"Serena Staats was very thorough and superb customer service! Hired Staats for small re-pointing job as well as removing old paint from brick wall and applying mortar. Job was done on time with excellent results. Would definitely hire again."

Jose C on April 2023

Staats Masonry is a small family owned business (Howard and Serena Staats). Over 30 years experience in Masonry and Construction services, with 2 years vocational schooling. Formally trained and certified by well known industry leaders such as Increte, Colormaker and Engrave-a-crete. We repair and replace foundation walls, install drainage systems, catch basins We build retaining walls, install bluestone patios/sidewalks, we also install concrete patios/sidewalk. Rebuild/repair porches/steps. Parge foundation walls. There’s no jobs too small.

"Serena Staats was very thorough and superb customer service! Hired Staats for small re-pointing job as well as removing old paint from brick wall and applying mortar. Job was done on time with excellent results. Would definitely hire again."

Jose C on April 2023

Avatar for LaBello's Masonry and Waterproofing, LLC

LaBello's Masonry and Waterproofing, LLC

696 5th Avenue
3.98(
143
)
•Approved Pro

LaBello's Masonry and Waterproofing, LLC

696 5th Avenue
3.98(
143
)
•Approved Pro
Customers say: Quality work
57 local quotes requested
24 years of experience

When it comes to waterproofing, LaBello's Masonry & Waterproofing prides itself on its philosophy of first determining the root cause for water seepage in the building before taking action. Only after that determination has been made can design on an appropriate and lasting waterproofing solution be created. LaBello's Masonry & Waterproofing services to numerous clients including building owners, property managers and architects. We do quality masonry restoration work and waterproofing and we always do it at competitive rates.

"After i paid. there was 0 communication and im not even sure if the job is complete. i don?t receive any invoices that Chad promised "

Jamel N on August 2025

When it comes to waterproofing, LaBello's Masonry & Waterproofing prides itself on its philosophy of first determining the root cause for water seepage in the building before taking action. Only after that determination has been made can design on an appropriate and lasting waterproofing solution be created. LaBello's Masonry & Waterproofing services to numerous clients including building owners, property managers and architects. We do quality masonry restoration work and waterproofing and we always do it at competitive rates.

"After i paid. there was 0 communication and im not even sure if the job is complete. i don?t receive any invoices that Chad promised "

Jamel N on August 2025

Paramount Home Solutions

290 Mineral Springs Rd
4.91(
80
)
•Approved Pro

Paramount Home Solutions

290 Mineral Springs Rd
4.91(
80
)
•Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
42 local quotes requested

With years experience, we are committed to providing quality workmanship and superior customer service on all our applications. Here at Paramount Home Solutions., we strive to maintain our reputation as THEE high quality, service oriented company with our main focus being customer satisfaction.

"We trust Jason completely, and would definitely work with him again. He repaired the cracks in our basement wall. Not only that, he provided us with the name of another trustworthy contractor that replaced the drywall for us. We are definitely grateful to find Paramount through the Angi app."

Josh S on August 2024

With years experience, we are committed to providing quality workmanship and superior customer service on all our applications. Here at Paramount Home Solutions., we strive to maintain our reputation as THEE high quality, service oriented company with our main focus being customer satisfaction.

"We trust Jason completely, and would definitely work with him again. He repaired the cracks in our basement wall. Not only that, he provided us with the name of another trustworthy contractor that replaced the drywall for us. We are definitely grateful to find Paramount through the Angi app."

Josh S on August 2024

Avatar for Pure home enviromental construction

Pure home enviromental construction

Based Out Of
5.00(
6
)

Pure home enviromental construction

Based Out Of
5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

General contractor specializing in and and all in home and property needs. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Their work was top-notch. The crew worked quickly to remediate the damage. They were professional, showed up when they said they would, and their attention to detail was amazing. Todd was great at explaining my options and guiding me through the insurance maze during a stressful time. I am so happy with the work they did and highly recommend them. I wouldn’t hesitate for a second about hiring them for any future projects."

Lisa L on April 2024

General contractor specializing in and and all in home and property needs. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Their work was top-notch. The crew worked quickly to remediate the damage. They were professional, showed up when they said they would, and their attention to detail was amazing. Todd was great at explaining my options and guiding me through the insurance maze during a stressful time. I am so happy with the work they did and highly recommend them. I wouldn’t hesitate for a second about hiring them for any future projects."

Lisa L on April 2024

Avatar for SK Contracting of NY Inc.

SK Contracting of NY Inc.

384 South St
No reviews yet

SK Contracting of NY Inc.

384 South St
No reviews yet

We are a one stop shop and can accommodate projects from the ground up. Owner operator business with very professional employees that are personable and respectful. Our goal is customer satisfaction and quality work.

We are a one stop shop and can accommodate projects from the ground up. Owner operator business with very professional employees that are personable and respectful. Our goal is customer satisfaction and quality work.

Builderdome Construction

115 East 23rd Street 3rd Floor
No reviews yet

Builderdome Construction

115 East 23rd Street 3rd Floor
No reviews yet
8 years of experience

Founded by tech & construction industry professionals, Builderdome is a construction technology company that is building out a home improvement platform for homeowners and contractors to eliminate current inefficiencies in the residential construction process. For more information please visit www.builderdome.com We also started Builderdome Construction - a construction services company that provides a full range of home improvement, new construction, general contracting and commercial construction services in New York Metro Area. Our goal is not to be a regular construction company but to lead by example and show homeowners how to save time, money, and effort in the process of improving their homes, achieved through technology, education, efficient planning, and execution. Our Residential Construction Services: * Kitchen Remodeling * Bathroom Remodeling * Basement Remodeling * Gut Renovations * Additions * Restorations * Exterior Renovations For more information on construction services, please visit www.builderdomeconstruction.com.

Founded by tech & construction industry professionals, Builderdome is a construction technology company that is building out a home improvement platform for homeowners and contractors to eliminate current inefficiencies in the residential construction process. For more information please visit www.builderdome.com We also started Builderdome Construction - a construction services company that provides a full range of home improvement, new construction, general contracting and commercial construction services in New York Metro Area. Our goal is not to be a regular construction company but to lead by example and show homeowners how to save time, money, and effort in the process of improving their homes, achieved through technology, education, efficient planning, and execution. Our Residential Construction Services: * Kitchen Remodeling * Bathroom Remodeling * Basement Remodeling * Gut Renovations * Additions * Restorations * Exterior Renovations For more information on construction services, please visit www.builderdomeconstruction.com.

Dan The Handyman

1071 Sunny Hill Rd
3.00(
2
)

Dan The Handyman

1071 Sunny Hill Rd
3.00(
2
)
10 years of experience

We Do Interior Remodeling Including Drywall, Painting Siding Roofing Window and Door Installation Tree Removal & Full Land Cleaning Services As Well & more

"DO NOT hire Dan Ford aka Dan the Handyman. I hired him to install a stone walkway and it is a complete disaster. The workmanship is terrible. The walkway is falling apart, breaking and lifting and is a trip hazard. I had to take him to court to get my payment refunded. I was awarded the judgment, but Dan Ford has NOT paid. I ended up having to file a transcript of judgment with the County Court and have a lien placed on him and his business. He still has NOT paid. Do NOT hire Dan Ford aka Dan the Handyman."

Jessica B on August 2018

We Do Interior Remodeling Including Drywall, Painting Siding Roofing Window and Door Installation Tree Removal & Full Land Cleaning Services As Well & more

"DO NOT hire Dan Ford aka Dan the Handyman. I hired him to install a stone walkway and it is a complete disaster. The workmanship is terrible. The walkway is falling apart, breaking and lifting and is a trip hazard. I had to take him to court to get my payment refunded. I was awarded the judgment, but Dan Ford has NOT paid. I ended up having to file a transcript of judgment with the County Court and have a lien placed on him and his business. He still has NOT paid. Do NOT hire Dan Ford aka Dan the Handyman."

Jessica B on August 2018

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Basement Waterproofing questions, answered by experts

Yes, water and water vapor can seep through cracks in your basement floor, which means you should address all basement floor cracks, even if they don’t indicate structural issues. Sealing settling cracks and shrinkage cracks is a good idea to keep water and moisture outside where it belongs. Doing so can improve your indoor air quality, reduce the risk of mold growth, make your home more comfortable, and help prevent pest infestation.

The purpose of crawl space encapsulation is to prevent mold and moisture from entering your space. If your vapor barrier is properly installed and intact, it will dramatically reduce the chance that your crawl space develops mold. That said, moisture can condense in the area. If you notice excess humidity, you may need to install a dehumidifier to stave off mold and mildew growth.

Depending on the severity, a slab leak can go undetected for months or even years, especially if you don’t carry out routine foundation inspections to find foundation leaks early. However, minor leaks are likely to turn into more severe leaks over time, so you might notice increases in water bills and issues with yard drainage, even if the problem is minor.

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.

Ductwork sweats for the same reason you might find beading on your windows or why cold drinks drip in the heat—temperature difference. When you see your ductwork and you notice sweating, that's a sure sign that your system is not operating anywhere close to peak efficiency. The best way to keep ductwork from sweating is to wrap it in inadequate insulation.

The Nassau, NY homeowners’ guide to basement waterproofing services

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