Get matched with top basement waterproofing pros in Oneida, NY

Q: When should you not finish a basement?

• <div><p>Basements with persistent moisture problems or flooding shouldn&rsquo;t be finished until the moisture issues have been fixed. In addition, if your foundation is cracked, you have unmitigated radon levels, or you have asbestos or lead pipes, remediate the underlying problem before finishing your basement. Turning a basement into living space before fixing these issues can lead to serious health risks or structural damage. </p></div>

Q: What's the difference between a vapor barrier and insulation?

• <div><p>A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air&mdash;and sometimes moisture&mdash;that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won&rsquo;t get damaged from moisture, like rigid foam board or expanding spray foam insulation.</p></div>

Q: How can I prevent ductwork from sweating in a crawl space?

• <div><p>Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.</p></div>

Q: Can you over dehumidify a house?

• <div><p>Yes, it is possible to over-dehumidify a house by removing too much moisture from the air. This can create an overly dry environment that negatively affects those with respiratory or skin issues, and may cause your skin, hair, and sinuses to feel dry. However, this is unlikely to happen with most modern dehumidifiers, as they are equipped with moisture sensors and adjustable settings. These features allow the unit to pause automatically when the desired humidity level is reached, preventing the air from becoming uncomfortably dry. In contrast, older or more basic dehumidifiers left running for too long could potentially over-dry the air. To avoid this, aim for a balance between removing excess moisture and maintaining a comfortable environment. You can often monitor your home's humidity levels using a modern thermostat for guidance.</p></div>

Q: What happens if a crawl space is not vented?

• <div><p>If a crawl space isn&rsquo;t vented, there can be moisture buildup, which can lead to mold damage, easily destroying the foundation of your home. A closed-off crawl space can trap heat, which can be useful in the winter, but can also trap dangerous gases and prevent clean air from entering the home through the floorboards. </p></div>

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Verified Reviews for Basement Waterproofing pros in Oneida, NY

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

*The HomeAdvisor rating for Basement Waterproofing companies in Oneida, 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 June 12, 2026

Reviewed in June 2026
I am very pleased with Richard and his crew. They worked hard and completed the job in a timely manner. They kept the basement clean throughout the job. Richard have a very complete and understandable explanation of what and how they would complete the work. He also allowed me to observe...
R Davies Construction
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Reviewed in November 2023
These two professionals cleaned our basement and coal stove in one hour. They meticulously vacuumed and mopped the whole basement and it looks amazing! I couldn’t have done it without them. They definitely went above and beyond.
Mighty Couple Cleaning and Painting
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Reviewed in July 2023
We have had our walk-in shower (5 foot by 5 foot with 9 foot ceiling) repaired multiple times and incurred great expense, delays, leaking, mold issues, ventilation issues, water leaking into our basement, etc. It was never done properly and we continued to have issues. It has been a homeownerâ ...
C. Michael Exteriors, Inc.
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Reviewed in March 2023
If you have the money and want a dry basement this company is the one to call. I guess one could watch you tube and do it yourself. However, itâ s a lot of work. When you factor in the time, tool rental, materialsâ ¦the price is reasonable. Professional Job! Done in a day. Life time...
Basement Waterproofing, Inc.
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Reviewed in July 2021
From start to finish Everdry Waterproofing was wonderful. The salesman was so very informative and answered all of our questions. The work was done efficiently by qualified servicemen and we haven't had a problem since. We live in Indianapolis, IN and with all the rain this spring/summer...
Everdry of Greater Indiana
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Reviewed in July 2021
After years of a damp basement and mildew problems a water leak from a broken kitchen pipe above the basement led us to use our insurance and redo the floors. That led to us wanting to solve the wet basement problem once and for all if possible. Mildew experts were going to be very expensive and...
B-Sure Systems, Inc.
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Reviewed in June 2021
We were very impressed with the service we received. I called around 8:00 AM because we had water flooding in our basement, and someone was at our home before 9:00 AM. The plumber who came was friendly and knowledgeable, and he quickly fixed the problem. Would definitely call them again.
Fonseca and Griffin Plumbing and Mechanical, LLC
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Reviewed in January 2021
They did a great job! The basement is dry for the first time in 60 years. They came on time and the project took exactly the projected length. I would highly recommend this company. The owner immediately responded to my request and came to the property late on a Saturday.
Absolutely Dry Basements
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Reviewed in December 2019
Joshua was wonderful. He came to look at the situation at our home (i.e., in the finished part of the basement), and recommended a comprehensive solution that was excellent from a time, cost and materials perspective. Joshua had excellent customer service; completed the job thoroughly and...
JCM Mold Solutions, LLC
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Reviewed in April 2019
I hired the to pump out water from my basement. Two young gentlemen showed up after lunch smelling like pot and not really professional. They were not able to suck up much water at a time. They had to keep leaving to empty their truck. I was not informed when I hired that they only take bank...
American Restorators
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Find Basement waterproofing pros in Oneida

Woodford Bros Inc

4.0(

)

Serving Oneida, NY and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"Zach & his Partner(name given, but I did Not write it down) arrived promptly at time given. Listened to my instructions & concerns and went above & beyond the job that I had signed up for. They both were very courteous & friendly. Office staff very friendly & courteous too. One could feel the smiles in their voices. ABOVE & beyond...I highly recommend this family owned business to do your job for you!!!"

Response time1 day

Response rate100%

13 neighbors recently requested a quote

Serving Oneida, NY and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Great company to work with, very friendly knowledgeable people and customer satisfaction is their goal. Matt and his crew did a superb job restoring our finished basement after it got flooded when our sump pump had failed during heavy rains. Dual pumps were installed, along with waterproof and mold proof walls and flooring and a Sedona dehumidifier air purification system."

Response time2 hrs

40 neighbors recently requested a quote

Recommended by58%of homeowners

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DRAIN & MAIN PLUMBING CO. LLC

4.8(

)

Serving Oneida, NY and surrounding areas

Approved

In business since 2025

Emergency services offered

Warranties offered

"Work was done very well, and we are very happy"

Response time1 day

Response rate100%

15 neighbors recently requested a quote

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Thomas White's Protective Coatings

4.6(

)

Serving Oneida, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1973

Small jobs welcome

Offers commercial services

"Friendly , competent and professional . Great job and I’d recommend him to anyone"

Response time2 days

26 neighbors recently requested a quote

Recommended by85%of homeowners

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R Davies Construction

5.0(

)

Serving Oneida, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Offers commercial services

"I am very pleased with Richard and his crew. They worked hard and completed the job in a timely manner. They kept the basement clean throughout the job. Richard have a very complete and understandable explanation of what and how they would complete the work. He also allowed me to observe what they were doing and answered questions that made me comfortable with his knowledge and experience"

Response time5 hrs

Response rate98%

27 neighbors recently requested a quote

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Highlander Waterproofing Inc

5.0(

)

Serving Oneida, NY and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

At Highlander Waterproofing & Foundation Repair, we are the area's trusted experts specializing in basement and crawlspace waterproofing and encapsulation, along with foundation repair services for bowing and buckling walls, floor and wall cracks, and full foundation rebuilds to name a few. When you contact Highlander for a free inspection, you are choosing a BBB A+ Accredited, two-time Torch Award for Ethics Winner, with our most recent years 2021, 2022!

Response time1 day

Response rate100%

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Hydro-Solutions, Inc.

3.2(

)

Serving Oneida, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

Hydro-Solutions, Inc., are experts in Basement Waterproofing and Foundation Repair. We are a locally owned and operated company, that values honesty and integrity in all aspects of our business. Our dedicated team of professionals, have many years of 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!

Response time5 hrs

Recommended by100%of homeowners

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Over the Top Unlimited, Inc.

New to Angi

Serving Oneida, NY and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

Over The Top Unlimited Inc. is a fully incorporated, licensed and insured excavation and proudly serving Parish, NY and the surrounding areas. Owned and operated by Michael Peters, the company brings over 20 years of hands-on industry experience to every residential and commercial project.\n\nWith a full fleet of heavy equipment and the expertise to handle projects of all sizes, Over The Top Unlimited Inc. specializes in excavation, septic system installation and replacement, foundations, basement and crawl space work, waterproofing, and encapsulation services. Whether preparing a site for new construction, replacing aging infrastructure, or solving drainage and foundation issues, Michael and his team deliver dependable workmanship built to last.\n\nFrom start to finish, clients can expect professionalism, efficiency, and quality results backed by decades of experience in the field.\n

1 neighbors recently requested a quote

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D&S Property Service LLC

New to Angi

Serving Oneida, NY and surrounding areas

Approved

I take pride and value the things I do. I’ve always wanted to have my own business and I made it happen. I work hard everyday to achieve my goals.

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Midstate Basement Authorities, Inc

4.7(

)

Serving Oneida, NY and surrounding areas

In business since 2012

Free estimates

Warranties offered

"They were quick, efficient, polite, and hardworking gentleman. I would hire them for any and all basement help"

Recommended by96%of homeowners

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Showing 1-10 of 60

Basement Waterproofing questions, answered by experts

Basements with persistent moisture problems or flooding shouldn’t be finished until the moisture issues have been fixed. In addition, if your foundation is cracked, you have unmitigated radon levels, or you have asbestos or lead pipes, remediate the underlying problem before finishing your basement. Turning a basement into living space before fixing these issues can lead to serious health risks or structural damage.

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

Yes, it is possible to over-dehumidify a house by removing too much moisture from the air. This can create an overly dry environment that negatively affects those with respiratory or skin issues, and may cause your skin, hair, and sinuses to feel dry. However, this is unlikely to happen with most modern dehumidifiers, as they are equipped with moisture sensors and adjustable settings. These features allow the unit to pause automatically when the desired humidity level is reached, preventing the air from becoming uncomfortably dry. In contrast, older or more basic dehumidifiers left running for too long could potentially over-dry the air. To avoid this, aim for a balance between removing excess moisture and maintaining a comfortable environment. You can often monitor your home's humidity levels using a modern thermostat for guidance.

If a crawl space isn’t vented, there can be moisture buildup, which can lead to mold damage, easily destroying the foundation of your home. A closed-off crawl space can trap heat, which can be useful in the winter, but can also trap dangerous gases and prevent clean air from entering the home through the floorboards.

The Oneida, NY homeowners’ guide to basement waterproofing services

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

See all articles

Lawrence Bonk
•
Jul 20, 2026Jul 20, 2026
How Much Does Basement Waterproofing Cost? [2026 Data]
Need to fix basement water problems or safeguard your home from damage in the future? Use this basement waterproofing cost guide to budget appropriately.
Rachel Hoffman
•
Jul 9, 2026Jul 9, 2026
How Much Does It Cost to Finish a Basement? [2026 Data]
An unfinished basement has a lot of potential for a family room or guest suite. So how much does it cost to finish a basement? Read on for all cost factors.
Dan Simms
•
Jul 8, 2026Jul 8, 2026
How to Waterproof a Basement Like a Pro
Dealing with a damp basement? Follow these steps for DIY basement waterproofing to keep water and moisture out and boost your home’s energy efficiency.
Dan Simms
•
Jul 9, 2026Jul 9, 2026
What Is Basement Waterproofing and How Does It Work?
Struggling with a damp basement? Learn about basement waterproofing and how these tips can help keep your basement safe from the elements.
Deirdre Sullivan
•
Jul 20, 2026Jul 20, 2026
How to Keep Your Basement Dry and Get Rid of Moisture
Can’t seem to get rid of the moisture and mold in your basement? Learn why basements tend to hold moisture and how to get rid of moisture in the basement.
C.E. Larusso
•
Jul 8, 2026Jul 8, 2026
7 Reasons Water Is Seeping Through Your Basement Floor
Unearth the root causes of water seepage in your basement floor. Explore effective solutions to keep your basement dry and your home protected.