Top-rated basement waterproofing pros.

Best basement waterproofing pros near Oswego, NY

Enter your zip and get matched with up to 5 pros

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

Avatar for Erie Home
Erie Home
4.4(
74
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Oswego, NY and surrounding areas

Approved (Corporate)

In business since 1976

Free estimates

Credit card accepted

"ErieHome waterproofed my basement. The crew was polite, kind, and came in, did an excellent job in 3 days by digging a trench on the inside of the basement, removing the dirt from the bottom of the foundation, installed corrugated tubing, rock and then cement. They also installed a Humidex airpurifier and new sump pump with a backup pump. They cleaned up afterward. Any questions I had were answered in a respectful manor. I now have peace of mind knowing that I no longer have to monitor weather forecasts for rain or have to clean up anymore incoming water. The system is warranted for the life of the house and included within the price, which increased the value of my home."
Basement Before and After
Basement Before and After
Basement Before and After
Basement Before and After
Basement Before and After

+47

141 neighbors recently requested a quote
Recommended by93%of homeowners
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
44 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%
16 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 were timely, stayed on estimate. Kept us informed during the whole process.. very courteous. I would highly recommend them. Excellent job, from obtaining the estimate to completeing the job. Very happy with them"
Before 1
After 1
After 2
After 3
After 4

+35

Response time2 days
2 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

4 neighbors recently requested a quote
...
Showing 1-10 of 56
Basement Waterproofing FAQs, answered by experts

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable. 

Mold growth is just one common sign of excess moisture in the bathroom. You may also see the paint in the room start to peel away from the walls, or that the walls remain wet for some time after you bathe.

Condensation on the windows is another sign that your bathroom has a potential moisture problem. The room itself may start to smell like mildew.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. The chances of mold developing depend on several factors, including the severity of the damage and how quickly the area is cleaned and dried. To prevent mold, you must act quickly—ideally within the first 24 hours. Clean up all water and thoroughly dry the affected area. If the damage is extensive, you were unable to address it immediately, or you suspect mold has already started to grow, it is best to assume it is present and hire a professional mold inspector or removal expert to assess the situation.

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.

Brick is designed to absorb moisture, but it is also designed to let it evaporate as well. So in general, the goal shouldn’t necessarily be keeping moisture out but making sure it has the room to breathe. If you have excess moisture getting through your brick wall, it’s more likely that you have a crack or other issue at play that a typical sealant won’t fix. So, instead of investing in sealant, try repairing your brick wall instead.

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.