Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in East Northport, NY

There are 17 highly-rated local basement waterproofing pros.

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TRUSTED BY EAST NORTHPORT, NY HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon58
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in East Northport

Basement Man

5.00(
16
)
Approved Pro

Basement Man

5.00(
16
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
15 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


Avatar for Long Hill Masonry Corp

Long Hill Masonry Corp

80 Horseblock Road
4.92(
26
)
Approved Pro

Long Hill Masonry Corp

80 Horseblock Road
4.92(
26
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
24 local quotes requested

**We have now expanded our Foundation Services**Long Hill Masonry has been providing a tradition of expert craftsmanship, quality and service for over 30 years. The company is owned and operated by Joseph Tavella, who himself comes from generations of masons. It is our goal to achieve the highest standard of quality in every project. We guarantee our workmanship for one full year, and most projects are payable upon completion of job take a look at our website at www.longhillmasonry.com

"Joe Cam down to do an estimate and he was very knowledgeable. The Quote was Fair and I had hired them to do the job. They came on time and the job came out great. I would recommend Long Hill to everyone I know"

Christian G on August 2023

**We have now expanded our Foundation Services**Long Hill Masonry has been providing a tradition of expert craftsmanship, quality and service for over 30 years. The company is owned and operated by Joseph Tavella, who himself comes from generations of masons. It is our goal to achieve the highest standard of quality in every project. We guarantee our workmanship for one full year, and most projects are payable upon completion of job take a look at our website at www.longhillmasonry.com

"Joe Cam down to do an estimate and he was very knowledgeable. The Quote was Fair and I had hired them to do the job. They came on time and the job came out great. I would recommend Long Hill to everyone I know"

Christian G on August 2023


Avatar for SAP CONCRETE & MASONRY, INC

SAP CONCRETE & MASONRY, INC

43 Hemlock Street
5.00(
5
)
Approved Pro

SAP CONCRETE & MASONRY, INC

43 Hemlock Street
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

SAP Concrete & Masonry Inc. Is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have hands on experience, to provide innovative Ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are Involved with. Please feel free to contact us today! 631-793-2902

"They did a very good job and always keep the site clean I will use them on my next project for sure."

Karen M on July 2024

SAP Concrete & Masonry Inc. Is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have hands on experience, to provide innovative Ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are Involved with. Please feel free to contact us today! 631-793-2902

"They did a very good job and always keep the site clean I will use them on my next project for sure."

Karen M on July 2024


Avatar for Zavza Seal, LLC

Zavza Seal, LLC

377 Main St. Suite 6
4.92(
43
)
Approved Pro

Zavza Seal, LLC

377 Main St. Suite 6
4.92(
43
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
42 local quotes requested

Zavza Seal is an experienced high end general contracting firm with a passion for delivering excellence. Serving Long Island communities including Suffolk, and Nassau counties. We are a one-stop shop construction company that specializes in the following: waterproofing basements, paving and sealing driveways and garages, waterproofing parking structure and concrete commercial roofs. Concrete Swimming pool buildout, Stone paving and tuck-pointing work. If you are considering any type of waterproofing project and concrete work we are here to help and can provide valuable, time-saving advice. We also specialize in waterproof concrete for professional and residential use called Basecrete. Call today for a free estimate!

"I hired Zavza Seal to waterproof my basement and they did an exceptional job! The team was professional, thorough and went the extra mile to ensure everything was done perfectly. I'm happy with their work and highly recommend them to anyone!"

Levan C on September 2024

Zavza Seal is an experienced high end general contracting firm with a passion for delivering excellence. Serving Long Island communities including Suffolk, and Nassau counties. We are a one-stop shop construction company that specializes in the following: waterproofing basements, paving and sealing driveways and garages, waterproofing parking structure and concrete commercial roofs. Concrete Swimming pool buildout, Stone paving and tuck-pointing work. If you are considering any type of waterproofing project and concrete work we are here to help and can provide valuable, time-saving advice. We also specialize in waterproof concrete for professional and residential use called Basecrete. Call today for a free estimate!

"I hired Zavza Seal to waterproof my basement and they did an exceptional job! The team was professional, thorough and went the extra mile to ensure everything was done perfectly. I'm happy with their work and highly recommend them to anyone!"

Levan C on September 2024


Avatar for Diamond Masonry & Waterproofing

Diamond Masonry & Waterproofing

1378 Whittier Avenue
5.00(
5
)

Diamond Masonry & Waterproofing

1378 Whittier Avenue
5.00(
5
)
76 local quotes requested

Diamond Masonry & Waterproofing was founded on a passion for the trade. We have been in the masonry and basement waterproofing trade since 1988 and formed diamond masonry & waterproofing in 2000.our knowledge and expertise of the industry has led us to small jobs and large scale commercial projects. No job is the same so we enjoy the challenges of all projects.

Diamond Masonry & Waterproofing was founded on a passion for the trade. We have been in the masonry and basement waterproofing trade since 1988 and formed diamond masonry & waterproofing in 2000.our knowledge and expertise of the industry has led us to small jobs and large scale commercial projects. No job is the same so we enjoy the challenges of all projects.


Specializing in masonry including: concrete, cement, driveways, patios, stairs, egress windows, entrance to basements, chimneys, stucco, etc.


We specialize in general home improvements from paint to other ends like accent walls and built-in’s. for almost a decade K&J Home Improvement has been the go to for home owners.


Dar Cleaning

No reviews yet

Dar Cleaning

No reviews yet
6 years of experience

Business Overview Welcome to Dar Cleaning, where spotless service meets unparalleled expertise. Specialties and Overview of Services: At Dar Cleaning, we specialize in delivering top tier cleaning services tailored to meet the unique needs of our clients. Our comprehensive range of services includes residential cleaning, commercial cleaning, deep cleaning, carpet cleaning, window washing, and more. Whether you need a one-time deep clean or regular maintenance, we are dedicated to providing a pristine environment that enhances the comfort and productivity of your space. Thank you for considering Dar Cleaning. We look forward to the opportunity to provide you with exceptional cleaning services that exceed your expectations. Contact us today to learn more about how we can help you maintain a clean, healthy, and welcoming space.

Business Overview Welcome to Dar Cleaning, where spotless service meets unparalleled expertise. Specialties and Overview of Services: At Dar Cleaning, we specialize in delivering top tier cleaning services tailored to meet the unique needs of our clients. Our comprehensive range of services includes residential cleaning, commercial cleaning, deep cleaning, carpet cleaning, window washing, and more. Whether you need a one-time deep clean or regular maintenance, we are dedicated to providing a pristine environment that enhances the comfort and productivity of your space. Thank you for considering Dar Cleaning. We look forward to the opportunity to provide you with exceptional cleaning services that exceed your expectations. Contact us today to learn more about how we can help you maintain a clean, healthy, and welcoming space.


"Eddie and his crew solved my flooding issues with the installation of new pumps and delivered innovation solutions for a complicated problem, in the best efficient ways. His work was clean efficient, immaculate honest and on time. his company was accountable and delivered exactly what I requested and needed. Fortunately for me he will be returning soon to continue to address a few other projects on my list. I'm confident anyone that hires this company will be extremely pleased. A number of my personal friends have hired his team and were pleased with no regrets. Terry"

Theresa L on June 2024

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!

"Eddie and his crew solved my flooding issues with the installation of new pumps and delivered innovation solutions for a complicated problem, in the best efficient ways. His work was clean efficient, immaculate honest and on time. his company was accountable and delivered exactly what I requested and needed. Fortunately for me he will be returning soon to continue to address a few other projects on my list. I'm confident anyone that hires this company will be extremely pleased. A number of my personal friends have hired his team and were pleased with no regrets. Terry"

Theresa L on June 2024


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Basement Waterproofing questions, answered by experts

When considering finishing your basement, take into account a few pros and cons:

Pros

  • Can increase the value of your home

  • Separate space from the rest of the house 

  • Customize and personalize the basement to suit your needs and style

  • Increase the amount of living space in your home

Cons

  • May not regain enough value to cover the cost of finishing

  • Lack of natural light if it’s below ground level

  • Moisture or flooding can cause costly damage

  • Installing plumbing and electrical can be messy and costly

A vapor barrier can last over 20 years, but they are vulnerable to pests, flooding, and other natural disasters. If your home weathers a storm or is treated for any pest infestation, make sure to have a drywall pro come check the integrity of your vapor barrier. It’s also important to have a pro install a vapor barrier since improper installation can lead to tears or leaks in the barrier that shorten its lifespan.

A crawl space encapsulation isn’t always necessary, but it’s a wise choice, especially if you live in an area that sees a lot of precipitation. Sealing a crawl space not only reduces damage caused by moisture, mold, and pests, but it also increases your home’s value. It can also save you money by reducing energy bills and avoiding costly repairs for structural or foundation damage.

Preventing future basement flooding often involves installing sump pumps, improving drainage, sealing foundation cracks, and maintaining gutters. Costs vary, but preventive measures can range from a few hundred to several thousand dollars, depending on the solutions chosen. Investing in prevention can save you money on future flooded basement cleanup costs and repairs.

Water damage always poses the risk of mold, but if you act quickly enough (within the first 24 hours), you may be able to avoid mold growth resulting from water damage. Clean up the water quickly and thoroughly dry the area. If the issue is more extensive or you didn’t act quickly enough, it’s always safer to assume mold has grown and hire a mold inspector to examine the area.

The East Northport, NY homeowners’ guide to basement waterproofing services

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