Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Armonk, NY

There are 12 highly-rated local basement waterproofing pros.

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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon48
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Armonk

Avatar for American Dry Basement Systems, LLC

American Dry Basement Systems, LLC

4.89(
100
)
Approved Pro

American Dry Basement Systems, LLC

4.89(
100
)
Approved Pro
Customers say: Quick response
1997 years of experience
Free onsite estimate

We serve our customers with pride and work hard to ensure complete satisfaction with every job. Having waterproofed close to 25,000 basements since 1997, you can be sure you'll get the experience, quality, and waterproofing performance you need. Why choose us? We want to help protect your most significant investment from any foundation damage or water control problems. We uniquely use ICC code compliant practices, dust suppression, our proprietary foundation repair technology, and leave your home without any post-repair mess. Whether your basement floods during rainstorms or it just has that musty, "basement odor," we have the solution! We are locally owned and operated. Give us a call today!

"Excellent service. Life time guarantee"

Michelle J on October 2025

We serve our customers with pride and work hard to ensure complete satisfaction with every job. Having waterproofed close to 25,000 basements since 1997, you can be sure you'll get the experience, quality, and waterproofing performance you need. Why choose us? We want to help protect your most significant investment from any foundation damage or water control problems. We uniquely use ICC code compliant practices, dust suppression, our proprietary foundation repair technology, and leave your home without any post-repair mess. Whether your basement floods during rainstorms or it just has that musty, "basement odor," we have the solution! We are locally owned and operated. Give us a call today!

"Excellent service. Life time guarantee"

Michelle J on October 2025


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
1963 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 Contractors' Waterproofing

Contractors' Waterproofing

4.99(
51
)
Approved Pro

Contractors' Waterproofing

4.99(
51
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
1985 years of experience

With over 30 years of experience serving the Westchester and surrounding area, Contractor's Waterproofing Corp is your solution for all your waterproofing needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Satisfaction guaranteed!

"Gregg and his team were absolutely amazing! The work was done, efficiently, exactly to spec, professionally, and right on budget! I recommend this company with the highest endorsement! "

Jackie B on May 2025

With over 30 years of experience serving the Westchester and surrounding area, Contractor's Waterproofing Corp is your solution for all your waterproofing needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Satisfaction guaranteed!

"Gregg and his team were absolutely amazing! The work was done, efficiently, exactly to spec, professionally, and right on budget! I recommend this company with the highest endorsement! "

Jackie B 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
2020 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 Terra Ferma Contracting, LLC

Terra Ferma Contracting, LLC

4.96(
57
)
Approved Pro

Terra Ferma Contracting, LLC

4.96(
57
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
2006 years of experience

Terra Ferma Contracting, LLC is a locally owned and operated company. Based out of Armonk, New York, we service the Westchester area. I have over 25 years experience and am personally on each and every job. I guarantee my work and will make sure each job is completed to your satisfaction. Our commitment to a job well done is second to none. Any outdoor living space such as walkways, retaining walls, patios, outdoor kitchens, fireplaces and asphalt driveways is what we specialize in. Call us today for your free estimate.

"Oscar and his team did an exceptional job on our home’s masonry projects including repairing our stone steps and foundation. His team did the job perfectly. They are personable, responsive, neat and do superior work. I would hire again and recommend."

Angela R on April 2024

Terra Ferma Contracting, LLC is a locally owned and operated company. Based out of Armonk, New York, we service the Westchester area. I have over 25 years experience and am personally on each and every job. I guarantee my work and will make sure each job is completed to your satisfaction. Our commitment to a job well done is second to none. Any outdoor living space such as walkways, retaining walls, patios, outdoor kitchens, fireplaces and asphalt driveways is what we specialize in. Call us today for your free estimate.

"Oscar and his team did an exceptional job on our home’s masonry projects including repairing our stone steps and foundation. His team did the job perfectly. They are personable, responsive, neat and do superior work. I would hire again and recommend."

Angela R on April 2024


Avatar for Connecticut Basement Systems, Inc.

Connecticut Basement Systems, Inc.

4.67(
141
)
Approved Pro

Connecticut Basement Systems, Inc.

4.67(
141
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
1987 years of experience

Connecticut Basement Systems is your trusted expert for basement waterproofing, crawl space repair, basement finishing, and foundation repair. Using patented, warrantied products, we provide permanent solutions for your home. Have a wet, flooded basement or crawl space? Tilted or bowing foundation walls? A basement you want to finish? We have a solution. We proudly serve homeowners and businesses all throughout Connecticut & Westchester County, NY. Call us today for a free inspection and no-obligation, estimate. Financing available. Additional phones - (203) 881-5090. Award winning.

"Chuck Stofko was very informative. Was patient in answering all my questions. Spent along time with me reviewing the process and the steps needed to waterproof my basment. I highly recommend him."

Justin F on August 2023

Connecticut Basement Systems is your trusted expert for basement waterproofing, crawl space repair, basement finishing, and foundation repair. Using patented, warrantied products, we provide permanent solutions for your home. Have a wet, flooded basement or crawl space? Tilted or bowing foundation walls? A basement you want to finish? We have a solution. We proudly serve homeowners and businesses all throughout Connecticut & Westchester County, NY. Call us today for a free inspection and no-obligation, estimate. Financing available. Additional phones - (203) 881-5090. Award winning.

"Chuck Stofko was very informative. Was patient in answering all my questions. Spent along time with me reviewing the process and the steps needed to waterproof my basment. I highly recommend him."

Justin F on August 2023


Avatar for Downrite Construction, Inc.

Downrite Construction, Inc.

5.00(
9
)
Approved Pro

Downrite Construction, Inc.

5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2008 years of experience

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality of our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Shawn is thorough and has great communication skills He keeps to the timeline and his work is great. I am very happy with all the work he completed at my house. I highly recommend him and already have to a good friend."

Nancy G on August 2023

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality of our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Shawn is thorough and has great communication skills He keeps to the timeline and his work is great. I am very happy with all the work he completed at my house. I highly recommend him and already have to a good friend."

Nancy G on August 2023


Avatar for Guaranteed Contracting Corp.

Guaranteed Contracting Corp.

4.86(
16
)
Approved Pro

Guaranteed Contracting Corp.

4.86(
16
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1987 years of experience

We have been in business for over 35 years. We personally guarantee every job we do. We will meet or exceeded your expectations upon performing your job. We will specify the proper scope of work to correct your specific issues, guaranteed! We are responsive, reliable, and reasonable for repairs and new roofs. We are professional and experts in shingles, slate, tile, gutters, gutters screens, siding. We also do painting and carpentry. Our owner, who supervises all work, has an architectural degree, assuring you the proper installation and details. We are fully licensed and insured. We do specialty copper flashing and chimney repairs.

"They weee on time, great work, fixed issue we have bee trying to get fixed for 2 years. Easy to work with"

Mark S on August 2024

We have been in business for over 35 years. We personally guarantee every job we do. We will meet or exceeded your expectations upon performing your job. We will specify the proper scope of work to correct your specific issues, guaranteed! We are responsive, reliable, and reasonable for repairs and new roofs. We are professional and experts in shingles, slate, tile, gutters, gutters screens, siding. We also do painting and carpentry. Our owner, who supervises all work, has an architectural degree, assuring you the proper installation and details. We are fully licensed and insured. We do specialty copper flashing and chimney repairs.

"They weee on time, great work, fixed issue we have bee trying to get fixed for 2 years. Easy to work with"

Mark S on August 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
1995 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 ProSeal Waterproofing

ProSeal Waterproofing

5.00(
8
)
Approved Pro

ProSeal Waterproofing

5.00(
8
)
Approved Pro
2024 years of experience
Free onsite estimate

I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

"Alex was amazing!! We had a crack in our foundation that another company attempted to repair numerous times. We were fortunate enough to hear about ProSeal and I am happy to report not only did Alex repair the crack to near perfection but the work was done timely, neatly and his customer service skills are top notch. I would HIGHLY recommend ProSeal for all of your foundation needs."

Angela M on October 2025

I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

"Alex was amazing!! We had a crack in our foundation that another company attempted to repair numerous times. We were fortunate enough to hear about ProSeal and I am happy to report not only did Alex repair the crack to near perfection but the work was done timely, neatly and his customer service skills are top notch. I would HIGHLY recommend ProSeal for all of your foundation needs."

Angela M on October 2025

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Basement Waterproofing questions, answered by experts

A crawl space encapsulation isn’t always necessary, but it’s a wise choice, especially if you live in an area that sees a lot of precipitation. Sealing a crawl space not only reduces damage caused by moisture, mold, and pests, but it also increases your home’s value. It can also save you money by reducing energy bills and avoiding costly repairs for structural or foundation damage.

To ensure your basement walls are waterproof, it's crucial to address any existing moisture issues before finishing. Inspect for signs of water seepage, such as dampness or discoloration, and repair any leaks or cracks. Install a vapor barrier to prevent moisture from penetrating the walls, and consider waterproofing paints or coatings.

Proper drainage systems, such as interior or exterior waterproofing, can also be beneficial.

Having a trusted crawl space contractor is the key to great encapsulation. If you're not sure how to hire a crawl space pro, begin by asking your neighbors for referrals. Homes in your neighborhood will often have a similar foundation to your house, and personal recommendations are one of the best ways to find a contractor. Additionally, double-check that the contractor has experience with encapsulation as well as proof of their license and insurance.

In nearly all cases, you are required to install a vapor barrier in your crawl space. However, local regulations will change based on the local climate and the crawl space's susceptibility to moisture. Even if a vapor barrier is not legally required, it is often a good idea to keep your crawl space dry.

Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance. 

The cost of a walkout basement can be anywhere from $5,000 to $35,000.

The Armonk, NY homeowners’ guide to basement waterproofing services

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

What do you need done? We’ll find top pros.
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