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Best basement waterproofing pros near Peconic, NY

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    Verified basement waterproofing services reviews

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

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

Serving Peconic, 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 Peconic, 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
Avatar for Twin Fork Waterproofing, LLC
Twin Fork Waterproofing, LLC
4.2(
29
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Peconic, 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 PRIORITY CESSPOOL SEWER & DRAIN, INC
PRIORITY CESSPOOL SEWER & DRAIN, INC
4.8(
270
)
Basement Drainage Channels - Install

Serving Peconic, NY and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"I called John and left a voicemail and he got back to me immediately. He double checked that I needed a cesspool certification and not an inspection which would have been more invasive and costly, and once confirmed, scheduled them to come out that weekend. The man who performed the certification was right on time and was very quick but professional and thorough. Everything was seamless, and for something requested by the bank so last minute, we were grateful to get it completed so quickly."
Additional Photos
Response time8 hrs
Response rate100%
Recommended by96%of homeowners
Avatar for Foundation Crack Repair, LLC
Foundation Crack Repair, LLC
4.5(
17
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Peconic, 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%
29 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 Peconic, NY and surrounding areas

Approved

In business since 1996

Free estimates

Our mission at M.O.E. Masonry, Inc., is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! M.O.E. Masonry, Inc., stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

Hampton Hardscapes
Hampton Hardscapes
Hampton Hardscapes
Hampton Hardscapes
Hampton Hardscapes

+20

Response time1 day
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 Peconic, 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
Avatar for Comfort Basement
Comfort Basement
4.4(
163
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Peconic, NY and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"Mr. John O. arrived on time and alerted me prior to his coming by phone. John went around the basement and inspected the walls and windows for moisture penetration, and signs of deterioration. He listened to my concerns and wrote a report and recommended an indoor french drain installation based on his professional judgment of the situation.
I received the report with a schematic of my basement and his assessment as a pdf on email. He included a detailed estimate for the work proposed.
I feel that I got a report and an hour of evaluation for $49 and it is fair.
"
Recommended by91%of homeowners
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Basement Waterproofing FAQs, answered by experts

Several factors can impact the cost of waterproofing your basement. Some of the most common cost factors include:

  • Location

  • Square footage

  • Cause of the water leak

  • Type of foundation

  • Accessibility

  • Waterproofing method

  • Materials

  • Contractor experience and availability

  • Engineering reports, if needed

  • Structural and other repairs

  • Permits

Make sure you're calling in the right expert to help repair and/or clean your crawl space. A serious issue may require multiple experts that include a local mold remediation pro, an HVAC pro, a foundation pro, and a plumber. You should also consider using a nearby junk removal service to avoid handling debris that could be covered in mold, fungi, rot, or asbestos.

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 best basement waterproofing method depends on the specific issue causing the water intrusion. For minor problems, simple solutions like installing a properly functioning gutter system to direct runoff away and grading the soil to slope away from your foundation can be effective.

If you have more significant water problems, the solution will need to be more robust:

  • For standing water on the basement floor, a floor drain or a sump pump system may be the best solution.

  • For water pooling around the foundation, installing an exterior French drain can intercept water before it reaches the basement walls.

Other effective waterproofing methods, which can be used depending on your home's specific needs, climate, and soil type, include sealing the interior walls, landscape alteration, installing interior drainage systems, and using a dehumidification system to control moisture levels.

Basements with persistent moisture problems or flooding shouldn’t be finished until the moisture issues have been fixed. In addition, if your foundation is cracked, you have unmitigated radon levels, or you have asbestos or lead pipes, remediate the underlying problem before finishing your basement. Turning a basement into living space before fixing these issues can lead to serious health risks or structural damage. 

The Peconic, NY homeowners’ guide to basement waterproofing services

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