Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Farmingville, NY

There are 16 highly-rated local basement waterproofing pros.

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

Select your specific project to find the pro for you.

TRUSTED BY FARMINGVILLE, NY HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon38
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Farmingville

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


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
44 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


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.

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Basement Waterproofing questions, answered by experts

The most challenging part of finishing a basement is addressing moisture control. Basement waterproofing is an essential task that requires a professional’s skills and knowledge. If you don’t properly waterproof your finished basement, it’ll be vulnerable to dampness, water damage, and mold growth. Ensuring proper insulation and ventilation to combat these issues while meeting building codes adds complexity to your remodeling project.

Rigid foam insulation boards are one of the best insulation materials for crawl spaces. This material insulates the home well, resists water damage, and won't settle like fiberglass or cellulose. Closed-cell spray foam insulation is another effective insulation that both seals the air and provides excellent thermal protection for hard-to-reach spaces like crawl spaces.

Several factors dictate if you should waterproof the interior or exterior of your basement. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor.

The easiest methods for waterproofing your basement include installing a gutter system to direct excess runoff away from your foundation and grading the soil away from your home to pull water away from the concrete. In some cases, these methods alone can be enough to eliminate water intrusion and moisture problems in your basement. If you have excessive rainfall in your area, though, you might need to employ more complicated solutions, like installing a French drain and a dehumidification system inside.

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

The Farmingville, NY homeowners’ guide to basement waterproofing services

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

What do you need done? We’ll find top pros.
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