Top-rated basement waterproofing pros.

Best basement waterproofing pros near Oswego, NY

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Top-Rated Basement waterproofing pros in Oswego - Updated Nov 2026

Avatar for Woodford Bros Inc
Woodford Bros Inc
4.0(
61
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Oswego, NY and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"Good salesmanship and promises up front , high prices. Apparently it's a crapshoot what work crew you get. The crew I got did extremely sloppy work, made lame excuses for shortcuts they took and damage they did, needed constant supervision to check on the work quality, took triple the estimated work time, (promised 2 days, took 6 and kept us and our kids up until 10:30 pm the on last day because they had another job scheduled), and finally needed the intervention of a supervisor in order to finish with barely acceptable job quality with a gravelly mess left around my sliding door. They used property without permission. It was overall an unpleasant experience having them in my living space, I ended up having to move out until they were finished. I hope never to have to repeat that experience. Hopefully the work they did will be effective in keeping water out of my basement during any upcoming monsoon."
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+4

Response time1 day
Response rate100%
12 neighbors recently requested a quote
Avatar for Woodford Bros., Inc.
Woodford Bros., Inc.
3.6(
36
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oswego, 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."
Company Photo 2018
Home of the Basement Bros
Wall cracks in bad shape
Wall fixed and safe
Before

+4

Response time2 hrs
47 neighbors recently requested a quote
Recommended by58%of homeowners
R Davies Construction
5.0(
17
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oswego, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Offers commercial services

"Rich and his team did a fantastic job on waterproofing my basement. I had many folks over for a quote and the vast majority of them spent hours of my time and quoted me very large prices on installing a waterproofing system. Rich came over, explained what work could be done, quoted a simple price, and left it at that. The crew was professional, timely, friendly, and thoughtful. They even provided sone minor fixes to some outside concrete items free of charge which saved from having to call out another crew for additional work. I highly recommend R. Davies if you want a professional crew who can get a job done efficiently and honestly."
Response time5 hrs
Response rate98%
15 neighbors recently requested a quote
Avatar for Elite Painting
Elite Painting
4.2(
53
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oswego, NY and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"They where reliable and quick had my very old basement walls and floor painted James worked hard and did good job.Hard to make 125 year old almost crawl space look good but they did thanks"
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After 1
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After 4

+35

Response time2 days
4 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Highlander Waterproofing Inc
Highlander Waterproofing Inc
5.0(
1
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oswego, 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%
Avatar for Easterly Masonry
Easterly Masonry
5.0(
1
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Oswego, NY and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

PanelUgrade
Daikin
Panel Upgrade
Electrical
Electrical

+1

Response time2 days
6 neighbors recently requested a quote
Recommended by100%of homeowners
Over the Top Unlimited, Inc.
New to Angi
Basement Drainage Channels - Install

Serving Oswego, 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

5 neighbors recently requested a quote
Reimer Heating, Cooling, & Plumbing
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Oswego, NY and surrounding areas

Approved (Corporate)

In business since 1921

Free estimates

Since 1921, Reimer has provided Buffalo and Erie County communities with knowledgeable, reliable, and fast home services. Day or night, heating or cooling, plumbing or electric, Reimer is ready. \n \nIn 2023, those same home services not only remain intact, but fueled by a recharged brand, they’re stronger and more prepared to support more communities than ever before. \n \nThe result—a brand as remarkable and memorable as the services Reimer provides. Together this team will continue to offer unparalleled home services to Buffalo and all of Upstate New York.

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Basement Waterproofing FAQs, 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

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.

To ensure your basement walls are waterproof, it's crucial to address any existing moisture issues before finishing. Inspect for signs of water seepage, such as dampness or discoloration, and repair any leaks or cracks. Install a vapor barrier to prevent moisture from penetrating the walls, and consider waterproofing paints or coatings.

Proper drainage systems, such as interior or exterior waterproofing, can also be beneficial.

A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it’s a plumbing line embedded in your slab, you’ll also likely notice above-average water bills.

Most people consider a French drain to be one of the most effective solutions for foundation leaks, but it’s not always a standalone solution. French drains will help keep water away from your foundation to reduce the risk of leaking and structural damage from soil expansion, but depending on your foundation type and location, you might need other systems or techniques—like soil gradation and gutter and leader installation—to resolve the underlying problem.

The Oswego, NY homeowners’ guide to basement waterproofing services

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