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There are 10 highly-rated local basement waterproofing pros.

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  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon45
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in New Square

Avatar for Basement Systems Of New York

Basement Systems Of New York

2901 Rte 17K
4.29(
41
)
Approved Pro

Basement Systems Of New York

2901 Rte 17K
4.29(
41
)
Approved Pro
Customers say: True professional
96 local quotes requested
32 years of experience

We are a locally owned and operated company with over 30 employees. Many of our products have warranties. We offer service visits. We will accept credit cards and financing is also offered.

"They were excellent on all counts-knowledgeable, Available to answer questions, efficient, on time, neat workers , and they did a very good job."

Regina R on September 2024

We are a locally owned and operated company with over 30 employees. Many of our products have warranties. We offer service visits. We will accept credit cards and financing is also offered.

"They were excellent on all counts-knowledgeable, Available to answer questions, efficient, on time, neat workers , and they did a very good job."

Regina R on September 2024


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
11 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 Diggs Building Technologies Corp.

Diggs Building Technologies Corp.

160 East Searsville Road
4.92(
37
)
Approved Pro

Diggs Building Technologies Corp.

160 East Searsville Road
4.92(
37
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
18 local quotes requested

Owner operated, our company has been serving the Greater Hudson Valley area for over 25 years now. Water damage can be extensive and we are here for the challenge your water issue brings. Water damage will only get worse the longer the issue is ignored. Call us TODAY to get a quote on repairing your water issues before they become major. County of Rockland License No. H-12200-A6-00-00 County of Westchester License No. WC-28482-H16

"Very experienced and professional."

Jeffrey L on June 2024

Owner operated, our company has been serving the Greater Hudson Valley area for over 25 years now. Water damage can be extensive and we are here for the challenge your water issue brings. Water damage will only get worse the longer the issue is ignored. Call us TODAY to get a quote on repairing your water issues before they become major. County of Rockland License No. H-12200-A6-00-00 County of Westchester License No. WC-28482-H16

"Very experienced and professional."

Jeffrey L on June 2024


Cambridge masonry

322 Elm Street
No reviews yet

Cambridge masonry

322 Elm Street
No reviews yet
21 years of experience

We are a family business and have been in business twenty year now . We are very reliable and professional business with high quality work and a beautiful finish on all our jobs and we give good prices and free inspections.

We are a family business and have been in business twenty year now . We are very reliable and professional business with high quality work and a beautiful finish on all our jobs and we give good prices and free inspections.


Kingdom Masonry & Home Improvement's

16 Parker Avenue
No reviews yet

Kingdom Masonry & Home Improvement's

16 Parker Avenue
No reviews yet
Free onsite estimate

Hi Everyone Kingdom Masonry & Home Improvements We Offer All Types Of Home Improvements Always Happy To Help With Any Project No Matter How Small/Big Offer High Quality Service Same Day Call Out Service Free Quotes On All Projects Have A Good One Everyone Give Us A Call Anytime

Hi Everyone Kingdom Masonry & Home Improvements We Offer All Types Of Home Improvements Always Happy To Help With Any Project No Matter How Small/Big Offer High Quality Service Same Day Call Out Service Free Quotes On All Projects Have A Good One Everyone Give Us A Call Anytime


E. Bludaj Construction Inc

2047 Holland Avenue
5.00(
3
)

E. Bludaj Construction Inc

2047 Holland Avenue
5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"Eddie and his crew solved my flooding issues with the installation of new pumps and delivered innovation solutions for a complicated problem, in the best efficient ways. His work was clean efficient, immaculate honest and on time. his company was accountable and delivered exactly what I requested and needed. Fortunately for me he will be returning soon to continue to address a few other projects on my list. I'm confident anyone that hires this company will be extremely pleased. A number of my personal friends have hired his team and were pleased with no regrets. Terry"

Theresa L on June 2024

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"Eddie and his crew solved my flooding issues with the installation of new pumps and delivered innovation solutions for a complicated problem, in the best efficient ways. His work was clean efficient, immaculate honest and on time. his company was accountable and delivered exactly what I requested and needed. Fortunately for me he will be returning soon to continue to address a few other projects on my list. I'm confident anyone that hires this company will be extremely pleased. A number of my personal friends have hired his team and were pleased with no regrets. Terry"

Theresa L on June 2024


Bonded Waterproofing Solutions Group LLC

5.00(
1
)

Bonded Waterproofing Solutions Group LLC

5.00(
1
)
42 years of experience

Established Basement Waterproofing business with over 40 years of experience waterproofing over 50,000 homes in the Tri-state area. Quality work at a fair price that's guaranteed! Give us a call today!

Established Basement Waterproofing business with over 40 years of experience waterproofing over 50,000 homes in the Tri-state area. Quality work at a fair price that's guaranteed! Give us a call today!


Foamco/Dr.EnergySaver

No reviews yet

Foamco/Dr.EnergySaver

No reviews yet

Insulation Consultant My Expertise in Cost-Effective and Efficient Project Management, Through eight years of dedicated research and hands on approach I have gained a comprehensive understanding of how to make your home, business, or any project as efficient as possible while maintaining a budget-friendly approach. My experience includes extensive training and certification in spray foam and other insulation solutions. I have also developed a strong understanding of the importance of communication and collaboration throughout a project. I make it a priority to keep my clients informed and involved every step of the way. By doing so, we can ensure that the final product meets all expectations, both in terms of functionality and cost. Additionally, I have a keen eye for detail and a passion for finding creative solutions to complex problems. This allows me to identify potential issues early on in a project and quickly develop effective solutions. Whether you are looking to improve the energy efficiency of your home or need a project manager for a larger construction project, I am confident in my ability to deliver exceptional results. Contact me today to learn more about my services and how I can help you achieve your goals.

Insulation Consultant My Expertise in Cost-Effective and Efficient Project Management, Through eight years of dedicated research and hands on approach I have gained a comprehensive understanding of how to make your home, business, or any project as efficient as possible while maintaining a budget-friendly approach. My experience includes extensive training and certification in spray foam and other insulation solutions. I have also developed a strong understanding of the importance of communication and collaboration throughout a project. I make it a priority to keep my clients informed and involved every step of the way. By doing so, we can ensure that the final product meets all expectations, both in terms of functionality and cost. Additionally, I have a keen eye for detail and a passion for finding creative solutions to complex problems. This allows me to identify potential issues early on in a project and quickly develop effective solutions. Whether you are looking to improve the energy efficiency of your home or need a project manager for a larger construction project, I am confident in my ability to deliver exceptional results. Contact me today to learn more about my services and how I can help you achieve your goals.


Steadfast Carpentry LLC

Salisbury Point
5.00(
8
)

Steadfast Carpentry LLC

Salisbury Point
5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Here at Steadfast Carpentry, we take pride in building things right the first time so that our home improvements last a lifetime. From staircases, to windows and doors; custom furniture to full home additions and remodels, we approach residential construction with an eye for modern style, but an old-time attention to detail that you just don’t see anymore. We are fully insured, licensed, and happy to collaborate on any custom designs you may be thinking up.

"Simply stated, the best possible carpentry service you can hire. In building a large deck off of the back of my house (project with a countless variables), Pat at Steadfast Carpentry worked to complete a design to my exact wants that will continue to impress everyone who sees it for decades. Pat demonstrated a deep knowledge and care for well-built and beautiful woodworking, and was able to exceed any expectations of build quality, cost, and aesthetics, whilst working safely and within the constraints of our town codes. I cannot overstate how friendly, helpful, knowledgeable, and diligent he has been throughout the entire process. I am overjoyed with the final product, and can personally assure anyone looking for a carpenter that you have found the gold standard with Steadfast Carpentry. It is a true rarity to find the affordability, knowledge, and quality at this level."

Jimmy D on September 2024

Here at Steadfast Carpentry, we take pride in building things right the first time so that our home improvements last a lifetime. From staircases, to windows and doors; custom furniture to full home additions and remodels, we approach residential construction with an eye for modern style, but an old-time attention to detail that you just don’t see anymore. We are fully insured, licensed, and happy to collaborate on any custom designs you may be thinking up.

"Simply stated, the best possible carpentry service you can hire. In building a large deck off of the back of my house (project with a countless variables), Pat at Steadfast Carpentry worked to complete a design to my exact wants that will continue to impress everyone who sees it for decades. Pat demonstrated a deep knowledge and care for well-built and beautiful woodworking, and was able to exceed any expectations of build quality, cost, and aesthetics, whilst working safely and within the constraints of our town codes. I cannot overstate how friendly, helpful, knowledgeable, and diligent he has been throughout the entire process. I am overjoyed with the final product, and can personally assure anyone looking for a carpenter that you have found the gold standard with Steadfast Carpentry. It is a true rarity to find the affordability, knowledge, and quality at this level."

Jimmy D on September 2024


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Basement Waterproofing questions, answered by experts

Living in a finished basement is acceptable, but only if the space has the proper points of egress and includes smoke and carbon monoxide (CO) detectors to ensure the safety of the occupants. A good way to ensure your finished basement is suitable for use as living space is to get the basement finishing project properly permitted.

If not properly maintained, an underground downspout may damage your home's foundation. A clogged downspout can back up, causing water to pool around the base of your home and seep into the foundation. Regular inspections and maintenance keep your downspout in good working order, preventing damage and protecting your home.

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.

If your basement often leaks after heavy rain, it’s probably caused by hydrostatic pressure. When the ground is saturated with water, it can put pressure on the exterior of your home’s foundation, causing cracks in the basement wall and pushing water through any existing weak spots. Over time, hydrostatic pressure can cause structural damage to your home.

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

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The New Square, NY homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.