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Find Basement leak repair pros in Greenport

Avatar for Twin Fork Waterproofing, LLC

Twin Fork Waterproofing, LLC

4.32(
27
)
Approved Pro

Twin Fork Waterproofing, LLC

4.32(
27
)
Approved Pro
Customers say: Quick response
48 years of experience
Free onsite estimate

For over 30 years Twin Fork Waterproofing, Inc. has been a family owned and operated business located on the East End of Long Island. We have been the #1 choice of thousands of homeowners and businesses on the North and South Forks and Shelter Island for basement waterproofing and mold disinfection, safe insulation, foundation repair, drainage systems, dehumidifiers, remediation of rodent feces, etc. Twin Fork Waterproofing, Inc. Uses all environmentally safe mildicides and disinfections for your safety and guarantees our work. Call or text us today for a free evaluation.

"Just excellent start to finish - I’ve been battling water in my basement for years and finally have no more anxiety during a heavy rainstorm. The new humidifier and waterproofed basement was money well spent - and the work and care from this top notch team was outstanding. Highly recommend them. Quality work at a fair price."

Marian Z on May 2025

For over 30 years Twin Fork Waterproofing, Inc. has been a family owned and operated business located on the East End of Long Island. We have been the #1 choice of thousands of homeowners and businesses on the North and South Forks and Shelter Island for basement waterproofing and mold disinfection, safe insulation, foundation repair, drainage systems, dehumidifiers, remediation of rodent feces, etc. Twin Fork Waterproofing, Inc. Uses all environmentally safe mildicides and disinfections for your safety and guarantees our work. Call or text us today for a free evaluation.

"Just excellent start to finish - I’ve been battling water in my basement for years and finally have no more anxiety during a heavy rainstorm. The new humidifier and waterproofed basement was money well spent - and the work and care from this top notch team was outstanding. Highly recommend them. Quality work at a fair price."

Marian Z on May 2025


Avatar for M.O.E. Masonry, Inc.

M.O.E. Masonry, Inc.

New on AngiNew on Angi
Approved Pro

M.O.E. Masonry, Inc.

New on AngiNew on Angi
Approved Pro
29 years of experience
Free onsite estimate

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!

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!


Avatar for FD Building Co.

FD Building Co.

4.80(
17
)
Approved Pro

FD Building Co.

4.80(
17
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

FD Building Co., has provided high quality work and friendly customer service for over 20 years. We get the job done efficiently and meticulously. We a full construction crew and maintenance program to keep your investment meticulously maintained. Visit or call us today!

"Great company to work with. Not cheap but they do good work and they have nice people."

Holly K on April 2022

FD Building Co., has provided high quality work and friendly customer service for over 20 years. We get the job done efficiently and meticulously. We a full construction crew and maintenance program to keep your investment meticulously maintained. Visit or call us today!

"Great company to work with. Not cheap but they do good work and they have nice people."

Holly K on April 2022


Avatar for Cocos Custom Building LLC

Cocos Custom Building LLC

4.75(
8
)
Approved Pro

Cocos Custom Building LLC

4.75(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
510 local quotes requested

Coco’s Custom Building LLC specializes in setting and finishing Modular Homes, fabricating and installing structural steel, and all phases of residential and commercial construction. This includes extensions, dormers, basements, siding, exterior trim and roofing. We have 25 years of experience. We take pride in giving our customers a professional quality finish on all of our projects for a reasonable price. We work extremely hard to ensure that our customers hard earned money doesn’t go to waste.

"Excellent. On time and on budget"

Brian D on January 2025

Coco’s Custom Building LLC specializes in setting and finishing Modular Homes, fabricating and installing structural steel, and all phases of residential and commercial construction. This includes extensions, dormers, basements, siding, exterior trim and roofing. We have 25 years of experience. We take pride in giving our customers a professional quality finish on all of our projects for a reasonable price. We work extremely hard to ensure that our customers hard earned money doesn’t go to waste.

"Excellent. On time and on budget"

Brian D on January 2025


MGT Construction, Corp.

4.21(
14
)
Approved Pro

MGT Construction, Corp.

4.21(
14
)
Approved Pro
Customers say: Quality work
93 local quotes requested

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"They did an awesome job. They were very professional. They were also very respectful. They respected our needs since my husband is already retired. Steve the project manager he was great along with his crew. They kept us in the loop of the progress on the project."

Joseph C on October 2025

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"They did an awesome job. They were very professional. They were also very respectful. They respected our needs since my husband is already retired. Steve the project manager he was great along with his crew. They kept us in the loop of the progress on the project."

Joseph C on October 2025


Avatar for Agate & Co. Builders

Agate & Co. Builders

4.96(
13
)
Approved Pro

Agate & Co. Builders

4.96(
13
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
15 local quotes requested

If you are looking for an experienced, reliable, and honest contractor to help you with your next construction project then consider Agate & Co. Builders. As a father and son team we have performed a variety of construction projects in the New York Tri-State area including; kitchens, baths, decks, windows, doors, flooring, trim, siding, tile, additions, and finished basements. At Agate & Co. Builders we have more than 35 years of construction experience working for us. We pride ourselves on our long history of outstanding craftsmanship and customer service, which is unparalleled in the industry. We remain a small construction company that performs most of the work ourselves using a few, hand-selected and highly qualified sub-contractors when needed. This consistently allows our high standards to be applied and is demonstrated in the quality of our work. We truly love what we do and look forward to helping you make the home of your dreams.

"Jim and his crew went over and above our expectations. They did a beautiful job on our new deck. When completed, they cleaned up and carted away all scraps. A truly professional job by all."

William B on May 2024

If you are looking for an experienced, reliable, and honest contractor to help you with your next construction project then consider Agate & Co. Builders. As a father and son team we have performed a variety of construction projects in the New York Tri-State area including; kitchens, baths, decks, windows, doors, flooring, trim, siding, tile, additions, and finished basements. At Agate & Co. Builders we have more than 35 years of construction experience working for us. We pride ourselves on our long history of outstanding craftsmanship and customer service, which is unparalleled in the industry. We remain a small construction company that performs most of the work ourselves using a few, hand-selected and highly qualified sub-contractors when needed. This consistently allows our high standards to be applied and is demonstrated in the quality of our work. We truly love what we do and look forward to helping you make the home of your dreams.

"Jim and his crew went over and above our expectations. They did a beautiful job on our new deck. When completed, they cleaned up and carted away all scraps. A truly professional job by all."

William B on May 2024


Master Remodelers

5.00(
7
)
Approved Pro

Master Remodelers

5.00(
7
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 local quotes requested

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!

"Master remodelers did a fantastic job without any complications. Joe and the team were very professional and efficient. My kitchen looks beautiful. Highly Recommend!"

Kathleen M on May 2025

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!

"Master remodelers did a fantastic job without any complications. Joe and the team were very professional and efficient. My kitchen looks beautiful. Highly Recommend!"

Kathleen M on May 2025


Avatar for Refined Renovators & Design

Refined Renovators & Design

5.00(
8
)
Approved Pro

Refined Renovators & Design

5.00(
8
)
Approved Pro
Super Service Award
34 local quotes requested
Free onsite estimate

At Refined Renovators & Design, we specialize in transforming spaces with our design expertise for kitchens, bathrooms, and all aspects of residential construction. Our team is highly skilled and experienced in using design programs such as 2020 Design and AutoCAD to bring your vision to life. License #HI-71919

"The work came out great on my bathroom remodel. The crew worked very neatly cleaned up every day. Very nice people. I would use them again."

Tom K on November 2025

At Refined Renovators & Design, we specialize in transforming spaces with our design expertise for kitchens, bathrooms, and all aspects of residential construction. Our team is highly skilled and experienced in using design programs such as 2020 Design and AutoCAD to bring your vision to life. License #HI-71919

"The work came out great on my bathroom remodel. The crew worked very neatly cleaned up every day. Very nice people. I would use them again."

Tom K on November 2025


Basement Man

5.00(
15
)
Approved Pro

Basement Man

5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 local quotes requested

WHY--THIS IS A JOB FOR BASEMENT MAN!!! Your locally owned and operated Basement Waterproofing Specialist. Why am I YOUR Basement Waterproofing Specialist? Because over a 38 year period, I've built over 110 customer homes all over Long Island and I know Basements! We stand behind and guarantee all of our work, so give us a call anytime for a free estimate.

"Things went great I'd hire him again"

John R on May 2025

WHY--THIS IS A JOB FOR BASEMENT MAN!!! Your locally owned and operated Basement Waterproofing Specialist. Why am I YOUR Basement Waterproofing Specialist? Because over a 38 year period, I've built over 110 customer homes all over Long Island and I know Basements! We stand behind and guarantee all of our work, so give us a call anytime for a free estimate.

"Things went great I'd hire him again"

John R on May 2025


"We went over everything that was going to be done step by step both A.J. and Sam explained and guided us in the process. All came in at budget and in a timely manner. They were clean and reliable. I Will use them for my next project! ps. All of their recommendations for plumbing, electrical and painting were fantastic."

VINCENT S on March 2025

Owner owned & operated. Full service remodeling company specializing in medium to large projects. Serving Suffolk county and the Hamptons. High end building and remodeling firm. Expect excellent quality and customer service. Permit and Variance Specialists.

"We went over everything that was going to be done step by step both A.J. and Sam explained and guided us in the process. All came in at budget and in a timely manner. They were clean and reliable. I Will use them for my next project! ps. All of their recommendations for plumbing, electrical and painting were fantastic."

VINCENT S on March 2025

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Basement Leak Repair questions, answered by experts

There are several reasons why you may find water dripping through your ceiling. This leak could be the result of a plumbing issue or a damaged roof. It’s important to determine the source of the leak before it causes damage to your home and belongings. Taking steps to catch the water immediately will help with additional issues.

The cost of installing landscape drainage with the help of a professional can vary widely depending on factors like the scope of the project, your location, and the specific services needed. Smaller tasks, such as installing a French drain, may range from $10 to $50 per linear foot, while more extensive projects like installing a catch basin can cost several thousand dollars to tens of thousands. Obtaining multiple quotes from qualified professionals is recommended to get a precise estimate for your specific drainage issue.

Heavy rain can affect a leach field because the extra rain can cause the groundwater level to rise. This leads the soil around the leach field to become saturated with rainwater, so it’s no longer able to take in effluent from the leach lines for final treatment. Heavy rainfall can cause the leach field to flood.

Inspect regularly for clogs, clean drain lines, and ensure grading directs water away from the foundation.

Mold and mildew are the things in basements that actually cause the musty odors, but moisture is the underlying issue that causes mold and mildew growth. Addressing moisture and water problems and then removing materials that are moldy are some of the best ways to get rid of the musty odors. Preventive measures after that—like installing air fresheners and a dehumidifier—can help keep musty odors from returning.

The Greenport, NY homeowners’ guide to basement leak repair services

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