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TRUSTED BY THIELLS, NY HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon36
    Verified basement waterproofing services reviews

Verified Reviews for Basement Waterproofing pros in Thiells, NY

*The Angi rating for Basement Waterproofing companies in Thiells, 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 Thiells, 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 December 16, 2025

Find Basement waterproofing pros in Thiells

Avatar for Arid Basement Waterproofing

Arid Basement Waterproofing

4.91(
76
)
•Approved Pro

Arid Basement Waterproofing

4.91(
76
)
•Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
62 years of experience

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 custom devised the best 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 custom devised the best 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.

4.92(
37
)
•Approved Pro

Diggs Building Technologies Corp.

4.92(
37
)
•Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
5 years of experience

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

Avatar for Quality 1st Basement Systems, Inc

Quality 1st Basement Systems, Inc

4.62(
201
)
•Approved Pro

Quality 1st Basement Systems, Inc

4.62(
201
)
•Approved Pro
Customers say: Quality work
27 years of experience
Free onsite estimate

Quality 1st Basement Systems is your local, family-owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Crack Repair, Egress Windows and Egress Stairwell, and Crawlspace Encapsulation too. 100% FINANCING AVAILABLE and free estimates. We have been in business for 25 years and have five star ratings with Google, Yelp, and the BBB. Winner of the 2021 BBB Torch Award for Market Place Ethics and finalist for the 2022 International BBB Torch award for Market Place Ethics. CONTACT US NOW BY CALLING 1-800-768-6745 OR EMAIL US AT [email protected]

"Service was great from sales, to installation, to post installation support. Very responsive, very professional. It's hard to find in this 'space'--there are a lot of shady people in basement water damage/repair, and this place exceeded expectations. We've had our repair in place for 4+ years, with only 1 small issue on a wall seam crack, and that was fixed within 24 hours of reporting the issue. Stand up place! Thank you for such great service and support."

john m on January 2024

Quality 1st Basement Systems is your local, family-owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Crack Repair, Egress Windows and Egress Stairwell, and Crawlspace Encapsulation too. 100% FINANCING AVAILABLE and free estimates. We have been in business for 25 years and have five star ratings with Google, Yelp, and the BBB. Winner of the 2021 BBB Torch Award for Market Place Ethics and finalist for the 2022 International BBB Torch award for Market Place Ethics. CONTACT US NOW BY CALLING 1-800-768-6745 OR EMAIL US AT [email protected]

"Service was great from sales, to installation, to post installation support. Very responsive, very professional. It's hard to find in this 'space'--there are a lot of shady people in basement water damage/repair, and this place exceeded expectations. We've had our repair in place for 4+ years, with only 1 small issue on a wall seam crack, and that was fixed within 24 hours of reporting the issue. Stand up place! Thank you for such great service and support."

john m on January 2024

Avatar for G & R Landscaping & Construction

G & R Landscaping & Construction

4.96(
13
)
•Approved Pro

G & R Landscaping & Construction

4.96(
13
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

We're dedicated to providing our clients with the very best in landscaping installation and repair for driveways, sidewalks, patios, steps, and a variety of other projects. With years of industry experience, we take an enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business.

"Hired G&R to fix up my deck, stain it, and paint a shed. The work involved replacing all of the horizontal hand rails, and tightening the floor boards. G&R stained the entire deck by hand (including the lattice work). Gave me a good price and stayed with that price. The deck was 35 years old, but you couldn't tell by looking at it now. My neighbor hired them to do some landscaping work after seeing them work on my property. Willie was easy to work with. Would definitely hired them again."

Desmond W on May 2021

We're dedicated to providing our clients with the very best in landscaping installation and repair for driveways, sidewalks, patios, steps, and a variety of other projects. With years of industry experience, we take an enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business.

"Hired G&R to fix up my deck, stain it, and paint a shed. The work involved replacing all of the horizontal hand rails, and tightening the floor boards. G&R stained the entire deck by hand (including the lattice work). Gave me a good price and stayed with that price. The deck was 35 years old, but you couldn't tell by looking at it now. My neighbor hired them to do some landscaping work after seeing them work on my property. Willie was easy to work with. Would definitely hired them again."

Desmond W on May 2021

Avatar for Basement Systems Of New York

Basement Systems Of New York

4.29(
41
)
•Approved Pro

Basement Systems Of New York

4.29(
41
)
•Approved Pro
Customers say: True professional
32 years of experience
Free onsite estimate

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 Expediant Environmental Solutions, LLC

Expediant Environmental Solutions, LLC

4.35(
362
)
•Approved Pro

Expediant Environmental Solutions, LLC

4.35(
362
)
•Approved Pro
Customers say: True professional
30 years of experience
Free onsite estimate

Expediant Environmental is committed to excellence and continues to be an outstanding business with over 25 years of experience. Our company prides itself on an outstanding record of quality service. We specialize in your whole home as a system approach. So when it comes to mold removal, insulation, or waterproofing we never forget to make sure it does not have a negative effect on another function of your home. Wet Crawl Space? Expediant offers CleanSpace encapsulation system to control moisture and dampness in the crawl space. We are an authorized Contractor Nation installer. Radon problem? That's no problem for us. Got bed bugs or rodents? We can make them disappear! Expediant offers a wide variety of services to meet all your pest control needs from preventative maintenance to treatment of active problems. See our website! www.Expedianthomesolutions.com

"Highly recommend, great work! "

Bill P on October 2025

Expediant Environmental is committed to excellence and continues to be an outstanding business with over 25 years of experience. Our company prides itself on an outstanding record of quality service. We specialize in your whole home as a system approach. So when it comes to mold removal, insulation, or waterproofing we never forget to make sure it does not have a negative effect on another function of your home. Wet Crawl Space? Expediant offers CleanSpace encapsulation system to control moisture and dampness in the crawl space. We are an authorized Contractor Nation installer. Radon problem? That's no problem for us. Got bed bugs or rodents? We can make them disappear! Expediant offers a wide variety of services to meet all your pest control needs from preventative maintenance to treatment of active problems. See our website! www.Expedianthomesolutions.com

"Highly recommend, great work! "

Bill P on October 2025

Avatar for Valley Roofing and Construction, LLC

Valley Roofing and Construction, LLC

5.00(
1
)
•Approved Pro

Valley Roofing and Construction, LLC

5.00(
1
)
•Approved Pro
13 years of experience
Free onsite estimate

Valley Roofing and Construction, LLC is 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.

"excellent experience working with valley roofing and construction to replace our old roof! and their customer service was responsive and personal. on-site crew was efficient and thorough with clean up! after the roof was installed we didn't find a speck of construction debris leftover.definitely recommend using valley roofing and construction"

patrick r on October 2025

Valley Roofing and Construction, LLC is 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.

"excellent experience working with valley roofing and construction to replace our old roof! and their customer service was responsive and personal. on-site crew was efficient and thorough with clean up! after the roof was installed we didn't find a speck of construction debris leftover.definitely recommend using valley roofing and construction"

patrick r on October 2025

Marinko Radakovic

5.00(
1
)
•Approved Pro

Marinko Radakovic

5.00(
1
)
•Approved Pro
25 years of experience
Free onsite estimate

With over 25 years of experience, Marinko Radakovic is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!

"Chimney tuck pointing and minor repairs carried out, I am so impressed with how it turned out it looks like a new chimney now. 5 star. "

Mary W on October 2025

With over 25 years of experience, Marinko Radakovic is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!

"Chimney tuck pointing and minor repairs carried out, I am so impressed with how it turned out it looks like a new chimney now. 5 star. "

Mary W on October 2025

Avatar for Pacific Lawn Sprinklers

Pacific Lawn Sprinklers

4.84(
556
)

Pacific Lawn Sprinklers

4.84(
556
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Since 1980, Pacific has been committed to providing 100% Customer Satisfaction, backed by our exclusive “On Time or On Us Guarantee”. Pacific provides neighborhood service with convenient appointment times from our local branches throughout the Tristate area. The Pacific Team provides 24/7 service, online scheduling and secure payment options. The highest compliment we can receive is a great referral, and this why Pacific has a Referral Rewards program. When our customers recommend us to friends and family, we offer $50 or $100 in rewards toward a future service. We offer a full line of irrigation and lighting services, visit our website at pacificlawnsprinklers.com for more information.

"I agreed to replace 2 METAL sprinkler heads. I was billed for 3 PLASTIC heads. I contacted Pacific Lawn several times to correct the invoice and they insisted that I received 3 METAL heads whereas the invoice billed me for 3 PLASTIC. heads. I was not satisfied with their handling of the whole process."

Gayle K on May 2025

Since 1980, Pacific has been committed to providing 100% Customer Satisfaction, backed by our exclusive “On Time or On Us Guarantee”. Pacific provides neighborhood service with convenient appointment times from our local branches throughout the Tristate area. The Pacific Team provides 24/7 service, online scheduling and secure payment options. The highest compliment we can receive is a great referral, and this why Pacific has a Referral Rewards program. When our customers recommend us to friends and family, we offer $50 or $100 in rewards toward a future service. We offer a full line of irrigation and lighting services, visit our website at pacificlawnsprinklers.com for more information.

"I agreed to replace 2 METAL sprinkler heads. I was billed for 3 PLASTIC heads. I contacted Pacific Lawn several times to correct the invoice and they insisted that I received 3 METAL heads whereas the invoice billed me for 3 PLASTIC. heads. I was not satisfied with their handling of the whole process."

Gayle K on May 2025

Avatar for Orange County Mechanical

Orange County Mechanical

4.98(
44
)

Orange County Mechanical

4.98(
44
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Air Conditioning, Plumbing,Heating And Complete Chimney Services. Sales, Service, Installations. 24/7 Emergency Service. Free Estimates. We Are A Family Owned And Operated Business. Owner/Operator. Over 100 Years Of Experience. All Work Is Warrantied. Our Products Are Hand Picked To Ensure Our Customers Only Have Worry Free products Installed In There homes. All Work Is Performed By Orange County Mechanical. There are no Subcontractors. All Of Our Employees Are Hand Picked To Perform The Higest Quality Of Work

"We called for an estimate and were texted almost immediately. We met with Ed, the owner and were very happy with the estimate and we scheduled the replacement right away. The employees that came to do the install were clean, professional and respectful. They explained the steps of the install and completed it in a few areas. They went as far as to put down tarps to protect our floors. The install went flawlessly and we were very happy. The new system is much quieter than the old one. We would recommend them to anyone."

Mary Ann B on October 2021

Air Conditioning, Plumbing,Heating And Complete Chimney Services. Sales, Service, Installations. 24/7 Emergency Service. Free Estimates. We Are A Family Owned And Operated Business. Owner/Operator. Over 100 Years Of Experience. All Work Is Warrantied. Our Products Are Hand Picked To Ensure Our Customers Only Have Worry Free products Installed In There homes. All Work Is Performed By Orange County Mechanical. There are no Subcontractors. All Of Our Employees Are Hand Picked To Perform The Higest Quality Of Work

"We called for an estimate and were texted almost immediately. We met with Ed, the owner and were very happy with the estimate and we scheduled the replacement right away. The employees that came to do the install were clean, professional and respectful. They explained the steps of the install and completed it in a few areas. They went as far as to put down tarps to protect our floors. The install went flawlessly and we were very happy. The new system is much quieter than the old one. We would recommend them to anyone."

Mary Ann B on October 2021

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Showing 1-10 of 443
Basement Waterproofing questions, answered by experts

Homeowners insurance may cover basement flooding, but only if a covered peril causes it. For example, a burst pipe may be covered if the event was sudden and accidental, not caused by wear and tear or homeowner neglect. Flooding caused by extreme weather is only covered if you have a separate flood insurance policy.

Brick is designed to absorb moisture, but it is also designed to let it evaporate as well. So in general, the goal shouldn’t necessarily be keeping moisture out but making sure it has the room to breathe. If you have excess moisture getting through your brick wall, it’s more likely that you have a crack or other issue at play that a typical sealant won’t fix. So, instead of investing in sealant, try repairing your brick wall instead.

Crawl spaces are the more desirable option overall because they provide additional space for storage and utilities, but they are more expensive to install and maintain. Slab foundations are considered a better option in warmer climates where the depth of the frost line isn’t an issue because they’re more affordable, but crawl spaces are better in areas where the frost line is deep or where flooding can be an issue.

Plan on cleaning your crawl space at least once a year, though twice a year is ideal. During the cleaning, remove any debris or dust and check for potential issues like pest infestations or water damage. The sooner you catch these issues, the easier (and cheaper) it will be to fix them.

When doing any type of project involving mold, it's important to wear the right protective gear. You'll want an N-95 or KN-95 mask to keep yourself from inhaling mold spores, which can be irritating or trigger an allergic reaction in people with weakened immune systems. You'll also want to wear protective eyewear and gloves to limit your contact with mold.

The Thiells, NY homeowners’ guide to basement waterproofing services

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