Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Middle Island, NY

There are 16 highly-rated local basement waterproofing pros.

Need a pro for your basement waterproofing project in Middle Island, NY?

Select your specific project to find the pro for you.

TRUSTED BY MIDDLE ISLAND, NY HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon40
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Middle Island

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
16 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 New York Waterproofing

New York Waterproofing

5 Bell Circle
4.97(
17
)
Approved Pro

New York Waterproofing

5 Bell Circle
4.97(
17
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

Struggling with basement water infiltration? New York Waterproofing offers unparalleled expertise in stopping water and hydrostatic pressure, endorsed by merchant engineers globally. Our basement waterproofing service guarantees the best solution nationwide. If competitors offer a better price, it's free! Our innovative process ensures water-tight basements without pumps or drains, even in severe conditions. Within hours, we eliminate water, mold, and odors permanently. Utilizing proprietary technology, our method seals water and moisture effectively and permanently. Plus, our guarantees are permanent and transferable, ensuring lasting peace of mind for homeowners. Projects start at $1299, a fraction of conventional costs, completed in a day! Call (631) 806-9690 for a free estimate. Opt for our efficient, and most affordable solution!

"Wonderful respectable people who work very hard to get the job done."

Joan W on September 2024

Struggling with basement water infiltration? New York Waterproofing offers unparalleled expertise in stopping water and hydrostatic pressure, endorsed by merchant engineers globally. Our basement waterproofing service guarantees the best solution nationwide. If competitors offer a better price, it's free! Our innovative process ensures water-tight basements without pumps or drains, even in severe conditions. Within hours, we eliminate water, mold, and odors permanently. Utilizing proprietary technology, our method seals water and moisture effectively and permanently. Plus, our guarantees are permanent and transferable, ensuring lasting peace of mind for homeowners. Projects start at $1299, a fraction of conventional costs, completed in a day! Call (631) 806-9690 for a free estimate. Opt for our efficient, and most affordable solution!

"Wonderful respectable people who work very hard to get the job done."

Joan W on September 2024


Avatar for Razaline Builders Inc

Razaline Builders Inc

8684 25th Avenue, 2nd Floor
4.50(
6
)
Approved Pro

Razaline Builders Inc

8684 25th Avenue, 2nd Floor
4.50(
6
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

Razaline Builders Inc is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Great, called quickly, came over immediately, did the job the next day and did it well."

Adam K on March 2023

Razaline Builders Inc is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Great, called quickly, came over immediately, did the job the next day and did it well."

Adam K on March 2023


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.



Avatar for Oscar’s complete landscaping

Oscar’s complete landscaping

Located In:
5.00(
8
)

Oscar’s complete landscaping

Located In:
5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specialize in all phases of landscaping, hardscaping, lawn maintenance, fertilization, masonry, pool services, housecleaning 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. As an added bonus, your first week of lawn maintenance is free! Call -or- click to schedule a free estimate today!

"Eric, Oscar and crew were an absolute pleasure to work with. They are true craftsman and did a fantastic Job on my driveway. They completed the job very quickly, cleaning up at the end of each day. I give Dream Pro Care my highest recommendation!"

Ron L on October 2024

We specialize in all phases of landscaping, hardscaping, lawn maintenance, fertilization, masonry, pool services, housecleaning 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. As an added bonus, your first week of lawn maintenance is free! Call -or- click to schedule a free estimate today!

"Eric, Oscar and crew were an absolute pleasure to work with. They are true craftsman and did a fantastic Job on my driveway. They completed the job very quickly, cleaning up at the end of each day. I give Dream Pro Care my highest recommendation!"

Ron L on October 2024


All Boro Inc

42 Maple Pl
No reviews yet

All Boro Inc

42 Maple Pl
No reviews yet
26 years of experience

We are a restoration, remediation, construction and maintenance company that works with commercial, residential customers and non-profit organizations by providing services that fix, build and maintain their quality of life. Servicing the Five Boroughs of New York and Long Island.

We are a restoration, remediation, construction and maintenance company that works with commercial, residential customers and non-profit organizations by providing services that fix, build and maintain their quality of life. Servicing the Five Boroughs of New York and Long Island.


PROBROS

5.00(
1
)

PROBROS

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

PROBROS Custom Aesthetics, for all your home remodeling needs. We do it all from building complete custom homes, interior remodeling that includes but is not limited to; Kitchen remodels, Bathroom remodels, Flooring, Roofing, Deck installation, and much more. Here at PROBROS we value each of our jobs as a unique and creative way for our homeowners to express themselves, all for an affordable price while maintaining a high quality finished product. With a dedicated team with over 20 years of experience, we have been around a long time and like to stay ahead of the competition, giving the best prices available and giving a reliable trusted service. There is no home renovation service that is too big or too small for us.

"The team did a great job on our deck in our backyard"

Fred C on March 2023

PROBROS Custom Aesthetics, for all your home remodeling needs. We do it all from building complete custom homes, interior remodeling that includes but is not limited to; Kitchen remodels, Bathroom remodels, Flooring, Roofing, Deck installation, and much more. Here at PROBROS we value each of our jobs as a unique and creative way for our homeowners to express themselves, all for an affordable price while maintaining a high quality finished product. With a dedicated team with over 20 years of experience, we have been around a long time and like to stay ahead of the competition, giving the best prices available and giving a reliable trusted service. There is no home renovation service that is too big or too small for us.

"The team did a great job on our deck in our backyard"

Fred C on March 2023

...
Showing 1-10 of 203
Basement Waterproofing questions, answered by experts

Since basements are prone to water and moisture issues and the resulting problems can be expensive to repair and potentially damaging to your home, basement waterproofing is almost always worthwhile. Even for homes that haven’t experienced water infiltration, waterproofing the basement is insurance against facing expensive repair bills in the future. All basements will leak at some point, so fixing drainage issues and taking steps to prevent moisture and water infiltration is wise.

Some basement waterproofing methods can actually cause your water or moisture problems to get worse, which is why it’s so important to call in a professional who knows how to solve your underlying issue and use the appropriate waterproofing methods. An example of this would be applying latex waterproofing paint to the insides of your basement walls without fixing the water issue outside. Doing so can trap moisture in the basement walls, which can promote mold growth, peeling paint, and even damaged concrete. However, when done by a professional, the only downside to basement waterproofing is the up-front cost.

Yes, if your crawl space is prone to humidity, a dehumidifier can help keep it dry. For use in a crawl space, you’ll need a high-capacity and high-efficiency dehumidifier with built-in air filtration. It’s also wise to purchase one with a self-draining feature. Otherwise, you’ll need to climb into the crawl space to empty the dehumidifier.

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

Methods include interior sealants, exterior excavation and waterproofing membranes, sump pump installation, and vapor barriers for encapsulation. Techniques vary based on the structure and severity of moisture issues.

The Middle Island, NY homeowners’ guide to basement waterproofing services

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