Top-rated basement waterproofing pros.

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There are 7 highly-rated local basement waterproofing pros.

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  • Verified reviews icon47
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Mahopac

Avatar for Dirty Deeds Basement Waterproofing

Dirty Deeds Basement Waterproofing

5.00(
4
)
Approved Pro

Dirty Deeds Basement Waterproofing

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 local quotes requested

Dirty Deeds Inc. is a family owned and operated company. We pride ourselves on our integrity and ability to provide professional and individualized waterproofing services. We offer you the best possible solution to your particular needs, offering a wide range of internal or external solutions. Our business owner Dean has 40 years experience specializing exclusively in basement waterproofing, his work has been recognized and featured in “This Old House Magazine,” showcased on our website: dirtydeedswaterproofing.com Give us a call to schedule your free inspection to identify, mitigate, and resolve your water issues.

"My sewage ejector pump in basement would not stop running and I was looking to replace it. I texted Dean two pictures of the pump, he was able to give me a quote over text and the price was quite reasonable. He received a new pump on 5/22/2023 and came over to my house. After opening up the old pump and checking, he told me that the only thing that is really broken is the check valve, the switch got stuck but is still functioning, and the pump itself works fine. I ended up asking him to only replace the check valve and the switch and this saved me about $1000 from the original plan. I appreciate Dean's honesty, professionalism, and a job well done."

Haifeng Q on June 2023

Dirty Deeds Inc. is a family owned and operated company. We pride ourselves on our integrity and ability to provide professional and individualized waterproofing services. We offer you the best possible solution to your particular needs, offering a wide range of internal or external solutions. Our business owner Dean has 40 years experience specializing exclusively in basement waterproofing, his work has been recognized and featured in “This Old House Magazine,” showcased on our website: dirtydeedswaterproofing.com Give us a call to schedule your free inspection to identify, mitigate, and resolve your water issues.

"My sewage ejector pump in basement would not stop running and I was looking to replace it. I texted Dean two pictures of the pump, he was able to give me a quote over text and the price was quite reasonable. He received a new pump on 5/22/2023 and came over to my house. After opening up the old pump and checking, he told me that the only thing that is really broken is the check valve, the switch got stuck but is still functioning, and the pump itself works fine. I ended up asking him to only replace the check valve and the switch and this saved me about $1000 from the original plan. I appreciate Dean's honesty, professionalism, and a job well done."

Haifeng Q on June 2023


Avatar for Roger Landscaping & Concrete

Roger Landscaping & Concrete

4.91(
34
)
Approved Pro

Roger Landscaping & Concrete

4.91(
34
)
Approved Pro
Customers say: Quality work
16 local quotes requested
5 years of experience

Roger Landscaping and Concrete is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Very courteous and professional crew. Antonio was very accommodating and worked to make sure I was satisfied with the job. "

Gregory M on October 2025

Roger Landscaping and Concrete is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Very courteous and professional crew. Antonio was very accommodating and worked to make sure I was satisfied with the job. "

Gregory M on October 2025


Avatar for Carbone Construction

Carbone Construction

5.00(
10
)
Approved Pro

Carbone Construction

5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

We pride our company on reliability, great communication, integrity, pricing and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade with over 15 years of experience. We are licensed in both Westchester and Putnam county’s. Our customers come first so we pay strong attention to each project needs. Service with a smile. Give us a call! We look forward to earning your business!

"Great Work"

Tim G on March 2025

We pride our company on reliability, great communication, integrity, pricing and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade with over 15 years of experience. We are licensed in both Westchester and Putnam county’s. Our customers come first so we pay strong attention to each project needs. Service with a smile. Give us a call! We look forward to earning your business!

"Great Work"

Tim G on March 2025


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
44 local quotes requested

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


"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 JV Masonry Corp.

JV Masonry Corp.

4.73(
11
)
Approved Pro

JV Masonry Corp.

4.73(
11
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
26 local quotes requested

JV Masonry Corp., provide quality masonry to the greater NYC area for your convenience. Our crew is here to help you big or small we cover it all. Our brick layers have the knowledge and expertise to provide the best service and quality brick installation for your property. Call JV Mason, today for your professional consultation with our pros.

"Wilson and team repointed my patio, taking the time to power-wash under the bricks and get everything perfectly level. Wilson explained every step and the guys were in and out in two days. I asked for a quirky repair on one missing face brick and they gave me just what I wanted. Would hire again."

Meredith S on November 2025

JV Masonry Corp., provide quality masonry to the greater NYC area for your convenience. Our crew is here to help you big or small we cover it all. Our brick layers have the knowledge and expertise to provide the best service and quality brick installation for your property. Call JV Mason, today for your professional consultation with our pros.

"Wilson and team repointed my patio, taking the time to power-wash under the bricks and get everything perfectly level. Wilson explained every step and the guys were in and out in two days. I asked for a quirky repair on one missing face brick and they gave me just what I wanted. Would hire again."

Meredith S on November 2025


Marinko Radakovic

5.00(
1
)
Approved Pro

Marinko Radakovic

5.00(
1
)
Approved Pro
89 local quotes requested
25 years of experience

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


East Ridge Landscaping Company, Inc.

4.69(
13
)
Approved Pro

East Ridge Landscaping Company, Inc.

4.69(
13
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
73 local quotes requested

Welcome to East Ridge Landscaping, proudly serving northern Westchester County area for all your lawn care and snow removal needs! We take pride in the quality of our work and our professional courtesy. We are currently taking on new clients for the upcoming spring season. Call us today!

"Frank, was respectful, knowledgeable and understanding of what my needs were"

Elizabeth D on May 2024

Welcome to East Ridge Landscaping, proudly serving northern Westchester County area for all your lawn care and snow removal needs! We take pride in the quality of our work and our professional courtesy. We are currently taking on new clients for the upcoming spring season. Call us today!

"Frank, was respectful, knowledgeable and understanding of what my needs were"

Elizabeth D on May 2024


Avatar for Connecticut Basement Systems, Inc.

Connecticut Basement Systems, Inc.

4.80(
35
)
Approved Pro

Connecticut Basement Systems, Inc.

4.80(
35
)
Approved Pro
Customers say: Quick response
135 local quotes requested
38 years of experience

Work completed by Connecticut Basement Systems, Inc., is warranted for lifetime of your home. Satisfaction is guaranteed and we assure prompt reply to all inquiries. Free estimates and financing are available. We've wowed over 30,000 customers since 1987. We have an A plus Better Business Bureau rating. Check us out for unbiased reviews and customer testimonials.

"Overall, working with the company was a good experience."

Marcy W on October 2024

Work completed by Connecticut Basement Systems, Inc., is warranted for lifetime of your home. Satisfaction is guaranteed and we assure prompt reply to all inquiries. Free estimates and financing are available. We've wowed over 30,000 customers since 1987. We have an A plus Better Business Bureau rating. Check us out for unbiased reviews and customer testimonials.

"Overall, working with the company was a good experience."

Marcy W on October 2024


"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

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Basement Waterproofing questions, answered by experts

Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.

Yes, outside leaks can easily cause damage to your home if you don’t have waterproofing measures in place. Regularly check your property for signs of a leak, ensure your home’s landscaping is at least at a 5% slope, your basement windows are sealed, and you have an aligned gutter system to catch rainwater.

Egress windows or doors are required in finished basements to meet safety and building codes. If your basement is unfinished and used as a storage space, egress windows are not required, but anything considered a habitable space must have an additional point of egress in addition to the stairs.

You should plan on waiting at least a year and ideally two to three years after construction before finishing your basement. This will give the foundation time to settle in response to the weight of your home and the expansion of the surrounding soil. You can then repair your foundation and seal any cracks as needed before finishing it to reduce your risk of future leaks or other issues.

The process might take a few days to a week, depending on the method chosen, area size, and weather conditions. Some solutions, like simple interior sealants, may require less time.

The Mahopac, NY homeowners’ guide to basement waterproofing services

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