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Best basement waterproofing pros near Mastic, NY

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    Average homeowner rating
  • Verified reviews icon23
    Verified basement waterproofing services reviews

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

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

Serving Mastic, 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 Mastic, NY and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"We wanted to finish our basement but was hesitant bc of our flooding problems. Home healthy homes solved that for us. They came in waterproofed and removed all mold. We have had heavy rainstorms since and no more floods! Glen and the team are so professional and could not be more helpful. They are reasonable and worth every dime! Highly highly recommend!! They go above and beyond."
Newsday Article
Response time4 hrs
Recommended by91%of homeowners
Napolitano Brothers Contracting, Inc.
4.8(
25
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Mastic, NY and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"This was absolutely my best experience I have ever had with any company I have ever done business with. No need to look any further, this is definitely the company you will want to do your basement waterproofing . The work that is done and the professionalism of every member of this family run business will exceed your highest expectations. I am an avid researcher when it comes to finding the best company to do a job that I need done. I had an ongoing issue for years with water leaking into my basement. I had 6 top rated waterproofing companies(very well known on long island and beyond) come to my house and present me with why my basement was leaking and how the best way was to fix it. Each company had something different to say and all different ways to fix it. Then came the Napalitano Brothers(Sons James and Mike). These upstanding gentlemen separated themselves from all the other companies I had dealt with. They were polite, sincere, honest, genuine, well mannered, friendly, professional, knowledgeable, and patient. They presented themselves with pride in the work that they would be doing and ensured me that they would be able to provide me with a job that would satisfy me beyond measure. I cannot say enough about James and Mike( they both were hands on in doing the actual work for the entire job) they were true to their word and after meeting the patriarch of the family business, I can see why and where these young men get their loyal, honest and genuine qualities. If every business followed the business model and approach of how the Napalitano Brothers run a company, it would make it easy to pick a company to do a job. Good thing I am steadfast when it comes to doing research on a company and I take my time to choose what company I will let do a job I need done. I could not have made a better choice because there is no better choice out their when it comes to getting your basement waterproofed. Everyone says they are the best, but with the Napalitano Brothers you are actually getting the best. After you check out the other companies, let the Napalitano Brothers be the last one before you make your final decision and I will guarantee, you will do as I did and have them do the job. They will exceed your every expectation and put you at complete ease from start to finish, and even after with their follow up with you once the job is complete. Make the SMART choice which is the absolutely the BEST choice and have the Napalitano Brothers take care of your basement waterproofing. They will be my only choice and recommendation to anyone that I know that will need the services that they provide. Since the completion of the job, back in February 2017, we have had a good amount of rain with a few storms that brought tremendous rainfall and I can say with great happiness and satisfaction that my basement has not leaked even one drop. I am very grateful and thankful for meeting the entire family and workers and for having them do a"
Paver Pool Patio and Retaining Wall
Walkway to Pool Patio.
Paver Driveway with Custom Border and Apron
Custom Stone BBQ and Wall
Custom Stone Work

+22

Response time9 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for PRIORITY CESSPOOL SEWER & DRAIN, INC
PRIORITY CESSPOOL SEWER & DRAIN, INC
4.8(
270
)
Basement Drainage Channels - Install

Serving Mastic, NY and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Had a backup a few days before and wanted to determine if it was a simple clog or cesspool related. They sent out a tech (Jimmy) the same day. He located both cesspools and walked me through my options. He was honest and patient, answering all my questions along the way."
Additional Photos
Response time8 hrs
Response rate100%
Recommended by96%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 Mastic, 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 Mastic, 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%
26 neighbors recently requested a quote
Avatar for Concrete & More Inc
Concrete & More Inc
New to Angi
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mastic, NY and surrounding areas

Approved

In business since 2019

Free estimates

We're dedicated to providing our clients with the very best in concrete installation and repair for driveways, sidewalks, patios, steps, and a variety of other projects. With over 1 years of industry experience, we take and 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. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. 5+ \n \n

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 Mastic, 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

While a standard gutter system is widely considered the most effective way to prevent water damage to your home's foundation, several alternatives are available. These options can be used on their own in certain climates or as supplementary protection.

Common alternatives include:

  • Rain Chains: These are decorative chains that hang from the roof's edge, guiding rainwater to the ground.

  • Drip Edges: These metal strips are installed at the edge of the roof to direct water away from the fascia. While often used with gutters, they can be paired with a ground-level solution but are typically not sufficient on their own.

  • Rain Dispersal Systems: These systems work by breaking up the heavy sheet of water flowing off the roof, dispersing it over a wider area.

  • French Drains: This ground-level system uses a perforated pipe in a gravel-filled trench to collect and redirect water runoff away from the house.

  • Drip Paths: Placed directly below the roofline, these paths made of concrete, stone, or other materials prevent soil erosion and guide water away.

It's important to note that some alternatives like rain chains and dispersal systems may not be adequate in regions with heavy rainfall because they don't divert water away from the foundation as effectively as a full gutter system. Ground-based solutions like French drains can be very effective but are often more expensive and can affect your landscaping and curb appeal. Many experts recommend installing a full gutter system for maximum protection and using alternatives as supplementary measures.

If foundation problems are not fixed, they will likely worsen over time, leading to more complex and expensive repairs. Neglecting a damaged foundation can cause a range of issues, including:

  • Structural Damage: Minor problems like small cracks can escalate into major structural issues. This can damage the house above the foundation and, in severe cases, lead to foundation walls caving in or a total collapse.

  • Water Damage and Pests: Moisture and water intrusion can cause flooding, mold growth, and pest infestations.

  • Health and Safety Risks: Mold can lead to poor indoor air quality and other health risks, while structural instability poses a significant safety hazard.

  • Reduced Home Efficiency: A compromised foundation can negatively impact your home's energy efficiency.

To avoid these escalating problems and costs, it's best to hire a foundation repair company to address any issues as soon as you become aware of them. The earlier problems are discovered and fixed, the lower the repair cost will likely be.

A moisture or vapor barrier helps separate the warm air inside your home from the cold air outside of it. Without it, your walls could collect condensation, mold, or other damage. Check your local building codes to see if including an interior vapor barrier is necessary for your building project or renovation, especially for rooms that are likely to be humid, like bathrooms.

Proper basement ventilation is very effective at reducing humidity. Without enough ventilation, your basement is prone to mold and moisture damage. Your basement should have as much natural ventilation via windows and doors as possible, and if your budget allows, you should also consider installing an ERV system to keep basement humidity levels at bay.

Standing water under your house can threaten its structural integrity. If water pools in your crawl space, it can damage the foundation and the structure above ground, causing wood rot, mold, and other problems. If you have a concrete foundation, standing water under your house can also make your foundation slabs crack.

The Mastic, NY homeowners’ guide to basement waterproofing services

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