Get matched with the best Basement Waterproofing pros in Ronkonkoma, NY

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American Build & Restoration Solutions

★ ★ ★ ★ ★ 4.8 (9 reviews)

Plainview, NY 11803

3 projects

American Build & Restoration Solutions specializes in insurance rebuilds, offering comprehensive residential and commercial disaster restoration services. We prioritize client advocacy while collabora...

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Build in Nyc - Basement Waterproofing in New York City, NY

Build In Nyc

★ ★ ★ ★ ★ 4.8 (8 reviews)

New York City, NY 10036

4 projects

BUILD IN NYC features a skilled and certified team of dedicated craftsmen and specialists known for their exceptional quality of work. We prioritize your satisfaction above all, ensuring that every pr...

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KH Property Management - Basement Waterproofing in Bedford, NY

KH Property Management

★ ★ ★ ★ ★ 4.6 (8 reviews)

Bedford, NY 10507

2 projects

KH Property Management is dedicated to meeting your home construction needs with the utmost care and professionalism. We prioritize honesty, integrity, and exceptional service in all our business deal...

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Bestnyrestoration - Basement Waterproofing in Bronx, NY

Bestnyrestoration

★ ★ ★ ★ ★ 4.6 (8 reviews)

Bronx, NY 10469

1 project

Best NY Restoration is a reputable construction firm located in NYC, specializing in roofing, masonry, driveways, fences, siding, and waterproofing. We are committed to delivering exceptional workmans...

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ET General Construction Inc. - Basement Waterproofing in Brooklyn, NY

ET General Construction Inc.

★ ★ ★ ★ ★ 4.7 (7 reviews)

Brooklyn, NY 11213

10 projects

ET General Construction Inc., a family-owned general contractor based in Brooklyn, has been providing complete renovation services in NYC since 1998. With over 25 years of experience and 1,000 success...

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Hampton Bay Construction - Basement Waterproofing in Bohemia, NY

Hampton Bay Construction

★ ★ ★ ★ ★ 4.7 (6 reviews)

Bohemia, NY 11716

20 projects

Hampton Bay Construction, a recognized leader in remodeling, has consistently provided exceptional construction and design services for residential projects. Specializing in major remodels, such as ad...

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P. F. E. Patino Painting Inc. - Basement Waterproofing in Ossining, NY

P. F. E. Patino Painting Inc.

★ ★ ★ ★ ★ 4.7 (6 reviews)

Ossining, NY 10562

8 projects

Since 2000, P. F. E. Patino Painting Inc. has established a reputation for integrity and professionalism. Initially focused on painting, we now offer comprehensive general contracting services. Our in...

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Michael Mensch Design INC.

★ ★ ★ ★ ★ 4.8 (4 reviews)

Sag Harbor, NY

Michael Mensch Design Inc. is a premier design-build firm with over 40 years of experience in crafting unique homes and renovations. We specialize in architectural and interior design services, offeri...

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Evolution General Contracting - Basement Waterproofing in Northport, NY

Evolution General Contracting

★ ★ ★ ★ ★ 4.5 (4 reviews)

Northport, NY 11768

10 projects

Evolution General Contracting, a certified Woman Business Enterprise in Long Island, NY, is reshaping the construction landscape. As a women-owned design-build firm, we excel in delivering high-qualit...

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Jay-Quinones Contracting Inc. - Basement Waterproofing in Bayville, NY

Jay-Quinones Contracting Inc.

★ ★ ★ ★ ★ 5.0 (2 reviews)

Bayville, NY 08721

29 projects

Jay-Quinones Contracting Inc. has over 20 years of expertise in commercial and residential alterations in New York City. Renowned as one of Staten Island's premier construction companies, we deliver h...

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Verified Reviews for Basement Waterproofing pros in Ronkonkoma, NY

*The Growcycle rating for Basement Waterproofing companies in Ronkonkoma, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on July 12, 2026

Sara Johnson

Reviewed in December 2025

I had a great experience with this service. They completed my basement remodel on time and within budget. Very pleased with the craftsmanship!

Rivertown General Contracting, LLC Request a quote

Sarah Mitchell

Reviewed in June 2025

The team handled our bathroom update efficiently and effectively. Everything came together beautifully, and they were great at communicating throughout the process.

ET General Construction Inc. Request a quote

Christina Vargas

Reviewed in July 2025

I had a fantastic experience with their team. They transformed my backyard into an outdoor paradise. Highly recommend their services!

Stone Creations of Long Island Pavers & Masonry Request a quote

Sarah Williams

Reviewed in November 2025

Kh Property Management has been a lifesaver! They manage my properties perfectly and make my life so much easier. Truly a great team to work with!

KH Property Management Request a quote

Emily Davis

Reviewed in January 2026

The team I worked with was exceptional. They listened to my ideas and provided great suggestions. The project turned out beautifully, and I highly recommend their services.

Cascella & Sons Construction Corp. Request a quote

Cost Guide

How much does Basement Waterproofing cost in Ronkonkoma, NY?

Typical basement waterproofing projects in Ronkonkoma, NY range from $2,000 to $7,000, with most homeowners paying around $4,000.

$2,000

$4,000 Typical cost in Ronkonkoma, NY

$7,000

LOWHIGH

Prices vary by project scope, materials, and local labor rates.

Per Sq Ft $5–$10

Per Project $2,000–$7,000

Per Linear Ft $20–$40

Last updated: April 2026

Basement waterproofing services in Ronkonkoma generally range from $2,000 to $7,000, with an average cost of around $4,000. The total cost can depend on factors such as the size of the basement, the severity of the water problem, and the chosen waterproofing method.

Local contractors in Ronkonkoma charge between $75 to $150 per hour for labor. It is important to check with the Town of Islip for any required permits, which can add $300 to $600 to the total project cost and may take several weeks to obtain.

When comparing basement waterproofing quotes in Ronkonkoma, be sure to ask about the methods used and any warranties provided for the work.

What affects the cost in Ronkonkoma, NY?

Ronkonkoma Labor Rates

Licensed waterproofing contractors in Ronkonkoma charge $75–$150/hr based on their experience and the complexity of the job. Higher rates may be found for emergency repairs or extensive damage.

Permits & Inspections

Most basement waterproofing work in Ronkonkoma requires permits from the Town of Islip. These permits are essential for ensuring compliance with local building codes and can add time and costs to the overall project.

Material Selection & Quality

Choosing high-quality waterproofing materials can increase project costs by 10–20%. Discuss options with your contractor to find a balance between quality and budget.

Seasonal Demand & Scheduling

The best time for basement waterproofing in Ronkonkoma is typically in the spring or fall, as this is when the ground is more stable. Scheduling during these times may result in better availability and rates.

Frequently Asked Questions About Basement Waterproofing in Ronkonkoma, NY

Can I waterproof my basement myself?

While some homeowners in Ronkonkoma may attempt DIY basement waterproofing, it is often a complex task best left to professionals. They have the necessary tools and expertise to identify underlying issues and apply effective solutions. Hiring a professional ensures that the job is done correctly, reducing the risk of future water damage and costly repairs.

How does the waterproofing process work?

The waterproofing process in Ronkonkoma typically involves several steps, including an initial assessment, identifying problem areas, and applying appropriate solutions such as sealants, drainage systems, or sump pumps. Professionals will inspect your basement for vulnerabilities and recommend the best strategies to prevent water intrusion, ensuring a dry and usable space beneath your home.

How long does basement waterproofing take?

The duration of basement waterproofing in Ronkonkoma can vary depending on the extent of the work needed. Simple solutions, such as sealing cracks, may take only a few hours, while more extensive projects involving drainage systems or sump pumps could take several days. It's important to discuss timelines with your chosen waterproofing contractor to set clear expectations.

What are the long-term benefits of waterproofing my basement?

Investing in basement waterproofing in Ronkonkoma provides long-term benefits, including increased property value, enhanced living space, and protection against mold and structural damage. A dry basement can be transformed into a functional area for storage, recreation, or additional living space. Additionally, preventing water intrusion safeguards your home's foundation and overall integrity.

What signs indicate I need basement waterproofing?

In Ronkonkoma, signs that you may need basement waterproofing include water stains on walls, damp or musty odors, and visible mold growth. If you notice cracks in your foundation or pooling water during rains, these are also clear indicators that your basement may require professional intervention to prevent further damage and maintain a dry, safe environment.

Common Basement Waterproofing services and their costs

Typical pricing in Ronkonkoma, NY by service type.

Waterproofing Methods

Various Waterproofing Solutions

Method	Cost Range
Interior Sealant Application Application of sealants on interior walls.	$2,000–$4,000
Exterior Excavation and Waterproofing Excavation and waterproofing from outside.	$5,000–$7,000
French Drain Installation Installation of a French drain system.	$3,000–$5,000
Sump Pump Installation Installation of a sump pump for water removal.	$1,500–$3,000

Additional Services

Supplemental Waterproofing Options

Method	Cost Range
Foundation Crack Repair Repair of cracks in the foundation walls.	$500–$1,500
Moisture Barrier Installation Installation of barriers to prevent moisture infiltration.	$1,000–$2,000
Basement Drainage Systems Installation of drainage systems to manage water.	$2,500–$4,500
Inspection and Assessment Professional assessment of basement waterproofing needs.	$300–$800

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Price ranges are estimates compiled from publicly available data and may vary with project scope.

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Verified Reviews for Basement Waterproofing pros in Ronkonkoma, NY

Sara Johnson

Sarah Mitchell

Christina Vargas

Sarah Williams

Emily Davis

How much does Basement Waterproofing cost in Ronkonkoma, NY?

What affects the cost in Ronkonkoma, NY?

Frequently Asked Questions About Basement Waterproofing in Ronkonkoma, NY

Common Basement Waterproofing services and their costs

Waterproofing Methods

Additional Services

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