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Best basement waterproofing pros near Mattituck, NY

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TRUSTED BY MATTITUCK, NY HOMEOWNERS

  • Average homeowner rating star icon3.9
    Average homeowner rating
  • Verified reviews icon14
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Mattituck - Updated Nov 2026

Basement Man
4.9(
59
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Mattituck, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1984

Free estimates

Customers say: Terrific value

"Jack and his crew were thorough, professional and courteous throughout the entire waterproofing project for the basement, which included outside drainage work to better direct water away from the house, and the foundation repairs that were needed. He provided a detailed estimate and explained all facets of the project. Jack also provided additional recommendations for repairing the house gutters and downspouts. The home was built in the 1940's and the basement would flood following rain. Since the repairs, three rain storms within five weeks, each with over 3 inches of rain, have occurred and the basement waterproofing project was immediately tested. It has remained dry!"
Basement Man Brochure
Basement Man Brochure
Basement Man Brochure
Basement Man Brochure
Response time1 day
1 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Home Healthy Homes, Inc.
Home Healthy Homes, Inc.
4.3(
120
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mattituck, NY and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"They were very helpful and professional. Glen responded to all of my questions in depth and worked hard to get my business to waterproof and eliminate mold. There have been a few hard rains since they completed their work, and I haven't had any water in the basement so far."
Newsday Article
Response time4 hrs
Recommended by91%of homeowners
Avatar for Twin Fork Waterproofing, LLC
Twin Fork Waterproofing, LLC
4.2(
29
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mattituck, NY and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"Bill, his son Derrick and assistant Victor did a great job assessing and fixing our leaking, damp basement. They installed a dehumidifier, waterproofed walls and floors in unfinished closets and found and rectified overflowing downspout that caused a basement flood during the last big rainstorms. Very professional, helpful and friendly. I highly recommend them."
Basement Remediation
Duct Cleaning
Projects
Projects
Projects

+3

Response time11 hrs
9 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Lorenzo Napolitano Construction Inc.
Lorenzo Napolitano Construction Inc.
4.9(
17
)
Basement Drainage Channels - InstallFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mattituck, NY and surrounding areas

Approved

In business since 1994

Free estimates

Customers say: True professional

"Lorenzo and his team did an excellent job of building a replacement concrete footing wall to support our stairs going down to the water. They did an excellent job under tough conditions. They were both on time and very neat."
Patio
Concrete pool coping
Patio
Patio finished
Patio finished

+72

Response time7 hrs
Response rate86%
2 neighbors recently requested a quote
Avatar for Foundation Crack Repair, LLC
Foundation Crack Repair, LLC
4.5(
17
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mattituck, NY and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Im am so happy with the work that was done on my house. Tyler came and gave a very fair estimate on lifting my concrete side entrance stairs to my basement. He explained every step of the process and did exactly what we wanted with no issues. Everything was done to perfection. No damage was done and you cant even tell the stairs ever needed a repair in the first place. I would highly recommend this company and would hire again for any future jobs."
Foundation Repair Ex.
Basement Repair Project
Response time2 days
Response rate99%
22 neighbors recently requested a quote
Avatar for M.O.E. Masonry, Inc.
M.O.E. Masonry, Inc.
5.0(
1
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mattituck, NY and surrounding areas

Approved

In business since 1996

Free estimates

"As a General Contractor, we rely heavily on sub-contractors to accomplish our homeowner project objectives. M.O.E. Masonry has and continues to be a first rate partner in our business and we're delighted with their quality of work, craftsmanship and reliability!"
Hampton Hardscapes
Hampton Hardscapes
Hampton Hardscapes
Hampton Hardscapes
Hampton Hardscapes

+20

Response time1 day
Rapid Response Plumbing
New to Angi
Basement Drainage Channels - Install

Serving Mattituck, NY and surrounding areas

Approved

In business since 2014

Free estimates

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of plumbing services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

Avatar for ACM Basement Waterproofing, Inc.
ACM Basement Waterproofing, Inc.
4.7(
65
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mattituck, NY and surrounding areas

In business since 1967

Free estimates

Warranties offered

"Mark was very professional, straight forward no nonsense. Crew was very professional, neat, and courteous. Job was done in two days and its like they were never here. Waterproofed basement French Drain installed w/ sump pump. Very happy with finished product. ACM did a great job."
Response time1 day
Recommended by95%of homeowners
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Basement Waterproofing FAQs, answered by experts

Methods include interior sealants, exterior excavation and waterproofing membranes, sump pump installation, and vapor barriers for encapsulation. Techniques vary based on the structure and severity of moisture issues.

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

If you set up a dehumidifier, it will usually dry out your wet crawl space within 12 to 24 hours. Once the space is dry, it’s a good idea to take preventative measures to keep it dry. These include installing a French drain or other exterior foundation drainage system, installing a sump pump in the crawl space, and installing a vapor barrier in addition to leaving the dehumidifier running.

Yes, you can finish a basement that leaks, as long as you address the leak first. Before finishing a basement, you’ll need to repair any cracks in the walls and waterproof the basement to prevent future leaks. It’s much harder to clean up a water leak from a finished basement than an unfinished one, so preemptively addressing any leaking areas prevents expensive repairs in the future.

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

The Mattituck, NY homeowners’ guide to basement waterproofing services

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