Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Locust Valley, NY

There are 20 highly-rated local basement waterproofing pros.

Need a pro for your basement waterproofing project in Locust Valley, NY?
Select your specific project to find the pro for you.

TRUSTED BY LOCUST VALLEY, NY HOMEOWNERS

Average homeowner rating star icon4.3
Average homeowner rating
Verified reviews icon36
Verified basement waterproofing services reviews

Basement waterproofing pros in Locust Valley

Avatar for Diamond Masonry & Waterproofing
Diamond Masonry & Waterproofing
1378 Whittier Avenue
New on HomeAdvisorNew on Angi
Approved Pro
Diamond Masonry & Waterproofing
1378 Whittier Avenue
New on AngiNew on HomeAdvisor
Approved Pro
21 local quotes requested
25 years of experience

Diamond Masonry & Waterproofing was founded on a passion for the trade. We have been in the masonry and basement waterproofing trade since 1988 and formed diamond masonry & waterproofing in 2000.our knowledge and expertise of the industry has led us to small jobs and large scale commercial projects. No job is the same so we enjoy the challenges of all projects.

Diamond Masonry & Waterproofing was founded on a passion for the trade. We have been in the masonry and basement waterproofing trade since 1988 and formed diamond masonry & waterproofing in 2000.our knowledge and expertise of the industry has led us to small jobs and large scale commercial projects. No job is the same so we enjoy the challenges of all projects.


Avatar for Fine and Fair Construction
Fine and Fair Construction
9206 Sutter AVE
5.00(
3
)
Approved Pro
Fine and Fair Construction
9206 Sutter AVE
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

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. 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.

"I loved the experience. They were quick and easy to work with. Would recommend if anyone needs anything done."

Mazid U on June 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. 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.

"I loved the experience. They were quick and easy to work with. Would recommend if anyone needs anything done."

Mazid U on June 2023


Avatar for Zavza Seal, LLC
Zavza Seal, LLC
377 Main St. Suite 6
4.92(
43
)
Approved Pro
Zavza Seal, LLC
377 Main St. Suite 6
4.92(
43
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
4 years of experience

Zavza Seal is an experienced high end general contracting firm with a passion for delivering excellence. Serving Long Island communities including Suffolk, and Nassau counties. We are a one-stop shop construction company that specializes in the following: waterproofing basements, paving and sealing driveways and garages, waterproofing parking structure and concrete commercial roofs. Concrete Swimming pool buildout, Stone paving and tuck-pointing work. If you are considering any type of waterproofing project and concrete work we are here to help and can provide valuable, time-saving advice. We also specialize in waterproof concrete for professional and residential use called Basecrete. Call today for a free estimate!

"I hired Zavza Seal to waterproof my basement and they did an exceptional job! The team was professional, thorough and went the extra mile to ensure everything was done perfectly. I'm happy with their work and highly recommend them to anyone!"

Levan c on September 2024

Zavza Seal is an experienced high end general contracting firm with a passion for delivering excellence. Serving Long Island communities including Suffolk, and Nassau counties. We are a one-stop shop construction company that specializes in the following: waterproofing basements, paving and sealing driveways and garages, waterproofing parking structure and concrete commercial roofs. Concrete Swimming pool buildout, Stone paving and tuck-pointing work. If you are considering any type of waterproofing project and concrete work we are here to help and can provide valuable, time-saving advice. We also specialize in waterproof concrete for professional and residential use called Basecrete. Call today for a free estimate!

"I hired Zavza Seal to waterproof my basement and they did an exceptional job! The team was professional, thorough and went the extra mile to ensure everything was done perfectly. I'm happy with their work and highly recommend them to anyone!"

Levan c on September 2024


Avatar for American Elite Contractors, Inc.
American Elite Contractors, Inc.
2509 Paulding Avenue, Unit 3
5.00(
15
)
Approved Pro
American Elite Contractors, Inc.
2509 Paulding Avenue, Unit 3
5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

"I hired American Elite Contractors to build a 8 unit building for me. They made the most complex project a breeze. Their pricing was fair compared to the other prices I got. They were very professional, punctual and communicative. If I could give them 10 stars I would. I highly recommend them to anyone looking for a general contractor. These guys are the real deal!!!!"

Meghan D on June 2024

"I hired American Elite Contractors to build a 8 unit building for me. They made the most complex project a breeze. Their pricing was fair compared to the other prices I got. They were very professional, punctual and communicative. If I could give them 10 stars I would. I highly recommend them to anyone looking for a general contractor. These guys are the real deal!!!!"

Meghan D on June 2024


Charlie Lopez Barillas
710 23rd Street Apt 1
New on HomeAdvisorNew on Angi
Approved Pro
Charlie Lopez Barillas
710 23rd Street Apt 1
New on AngiNew on HomeAdvisor
Approved Pro
54 local quotes requested
10 years of experience

Charlie Lopez Barillas is a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"-"

Oona C on April 2025

Charlie Lopez Barillas is a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"-"

Oona C on April 2025


Avatar for New Horizon Homes, Inc.
New Horizon Homes, Inc.
1430 Hallock Avenue
4.83(
12
)
Approved Pro
New Horizon Homes, Inc.
1430 Hallock Avenue
4.83(
12
)
Approved Pro
Customers say: Quality work
26 local quotes requested
23 years of experience

New Horizon Homes, Inc. is locally owned and operated. We pride ourselves on providing quality work and great customer service. Our customer's complete satisfaction is our top priority! Please call today for your free estimates.

"I dealt with the owner Paul from start to finish. We had purchased all of the materials for the renovation of our bathroom as well as our master bedroom, halls and entire first floor ceiling. Paul and his crew made our entire plan come alive and completed the project in the time span they had promised. We are thrilled with how well every thing went. We had them do an additional project on the exterior of our house after completion of the interior work and this was handled as well. the few minor problems that occurred were rectified with no delay, and to our complete satisfaction."

tom s on December 2017

New Horizon Homes, Inc. is locally owned and operated. We pride ourselves on providing quality work and great customer service. Our customer's complete satisfaction is our top priority! Please call today for your free estimates.

"I dealt with the owner Paul from start to finish. We had purchased all of the materials for the renovation of our bathroom as well as our master bedroom, halls and entire first floor ceiling. Paul and his crew made our entire plan come alive and completed the project in the time span they had promised. We are thrilled with how well every thing went. We had them do an additional project on the exterior of our house after completion of the interior work and this was handled as well. the few minor problems that occurred were rectified with no delay, and to our complete satisfaction."

tom s on December 2017


Ruben's Masonry
Yalta Drive
No reviews
Ruben's Masonry
Yalta Drive
No reviews
5 years of experience

Specializing in masonry including: concrete, cement, driveways, patios, stairs, egress windows, entrance to basements, chimneys, stucco, etc.

Specializing in masonry including: concrete, cement, driveways, patios, stairs, egress windows, entrance to basements, chimneys, stucco, etc.


Best Cut Woodworks
1 The Mastics
5.00(
1
)
Best Cut Woodworks
1 The Mastics
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Colors have the incredible ability to transform spaces, evoke emotions, and create a unique atmosphere. At Best Cut Woodworks, we specialize in providing expert interior painting services that breathe new life into your home, reflecting your personal style and aspirations.  Our Approach to Interior Painting Painting is an art, and we approach it with creativity, precision, and a dedication to perfection. Our skilled painters understand the nuances of color, texture, and technique, ensuring that every brushstroke contributes to the overall aesthetic of your space. Why Choose Our Interior Painting Services? Expertise: Our team of experienced painters brings years of expertise to the table, ensuring a flawless finish and attention to detail. Customization: We believe that your home should be a reflection of you. That's why we work closely with you to choose the perfect colors that align with your style and preferences. Quality Materials: We use high-quality paints and materials to guarantee long-lasting and beautiful results. Efficiency: We understand the importance of time, and we work efficiently to complete projects within agreed-upon timelines. Attention to Detail: From preparing the surfaces to the final coat, we meticulously execute each step to achieve a smooth and even finish. we are currently looking to take on more painting, interior and exterior! we also offer all phases of home construction and remodeling , and outdoor services to! such as; lawn maintenance and fence installs and creation. find us on Facebook for builds and projects for sale on ebay! (amazon coming soon)

"Alex Understood the project I wanted with my deck and it came out better than expected! Since then I also had him back for my fencing, flooring, Painting and other jobs like he made me a custom made door. He always out does himself and gets the job done effectively. I highly recommend Alex to complete any project you have in mind. He will get it done to your expectations!"

Brenda S on September 2024

Colors have the incredible ability to transform spaces, evoke emotions, and create a unique atmosphere. At Best Cut Woodworks, we specialize in providing expert interior painting services that breathe new life into your home, reflecting your personal style and aspirations.  Our Approach to Interior Painting Painting is an art, and we approach it with creativity, precision, and a dedication to perfection. Our skilled painters understand the nuances of color, texture, and technique, ensuring that every brushstroke contributes to the overall aesthetic of your space. Why Choose Our Interior Painting Services? Expertise: Our team of experienced painters brings years of expertise to the table, ensuring a flawless finish and attention to detail. Customization: We believe that your home should be a reflection of you. That's why we work closely with you to choose the perfect colors that align with your style and preferences. Quality Materials: We use high-quality paints and materials to guarantee long-lasting and beautiful results. Efficiency: We understand the importance of time, and we work efficiently to complete projects within agreed-upon timelines. Attention to Detail: From preparing the surfaces to the final coat, we meticulously execute each step to achieve a smooth and even finish. we are currently looking to take on more painting, interior and exterior! we also offer all phases of home construction and remodeling , and outdoor services to! such as; lawn maintenance and fence installs and creation. find us on Facebook for builds and projects for sale on ebay! (amazon coming soon)

"Alex Understood the project I wanted with my deck and it came out better than expected! Since then I also had him back for my fencing, flooring, Painting and other jobs like he made me a custom made door. He always out does himself and gets the job done effectively. I highly recommend Alex to complete any project you have in mind. He will get it done to your expectations!"

Brenda S on September 2024


K&J Home improvement
124 Morris Avenue
No reviews
K&J Home improvement
124 Morris Avenue
No reviews
7 years of experience

We specialize in general home improvements from paint to other ends like accent walls and built-in’s. for almost a decade K&J Home Improvement has been the go to for home owners.

We specialize in general home improvements from paint to other ends like accent walls and built-in’s. for almost a decade K&J Home Improvement has been the go to for home owners.


Empera Home Improvement
No reviews
Empera Home Improvement
No reviews
2 years of experience

Because we have the experience, expertise, and equipment to meet and surpass customer expectations. Our motto is just solutions

Because we have the experience, expertise, and equipment to meet and surpass customer expectations. Our motto is just solutions

...
Showing 1-10 of 205

FAQs for basement waterproofing projects in Locust Valley, NY

Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:

  • Water in your basement, including damp walls or puddles on the floor

  • Mold spots in your basement

  • Musty smells or odors

  • Warped doors or walls

  • Cracks in walls

  • Insect issues, such as cockroaches and termites

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.

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.

Several factors dictate if you should waterproof the interior or exterior of your basement. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor.

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 Locust Valley, NY homeowners’ guide to basement waterproofing services
From average costs to expert advice, get all the answers you need to get your job done.
Pastel blue walls in a basement living room
May 22, 2025
May 22, 2025
Sump pumps are a must for homeowners who live in flood zones. Find out how much sump pump installation costs based on type, location, and features.
farmhouse bathroom with a wood cabinet
Nov 13, 2024
Nov 13, 2024
Sump pump battery backup costs depend on the type and the design of the system purchased. Follow this guide to learn how to budget for your backup battery.
Basement living room interior
May 16, 2025
May 16, 2025
Need to fix basement water problems or safeguard your home from damage in the future? Use this basement waterproofing cost guide to budget appropriately.
An open-space living room in a house’s basement
Jun 6, 2025
Jun 6, 2025
A basement offers additional living or storage space, but if it leaks, it can become a significant headache. Learn how to fix a leaky basement and prevent water damage.
An encapsulated crawl space
Jul 8, 2024
Jul 8, 2024
Crawl space inspections should be as commonplace as roof and chimney checkups. Here's who to hire to inspect your crawl space.
Close-up of woman standing in backyard during rainy season
Nov 13, 2024
Nov 13, 2024
Your sump pump is designed to remove water and prevent flooding. Find out which common causes may be responsible if your sump pump is constantly running.
Share project details to get started.