Top-rated basement waterproofing pros.

Best basement waterproofing pros near Harris, NY

Enter your zip and get matched with up to 5 pros

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

Avatar for Basement Systems Of New York
Basement Systems Of New York
4.3(
42
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Harris, NY and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"The entire team from estimate to completion were great! When an unforeseen problem arose they were responsive, punctual and thoroughly professional in taking care of the issue. What a pleasure to hire a company that takes pride in their work and making sure that the customer is completely satisfied. I highly recommend Basement Systems of New York."
Pouring A New Slab At Our Office - Bullville, NY
Calling A Last Minute Audible To Install A New Concrete Slab - Liberty, NY
Waterproofing A Walkout Basement With Our Patented Two-Stage Waterproofing System - Pine Bush, NY
Installing An Interior Waterproofing System With A Gravity Discharge - Holmes, NY
Knocking Down And Rebuilding A Foundation Wall - Kiamesha Lake,  NY

+7

Response time1 day
18 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Groundworks
Groundworks
5.0(
6
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Harris, NY and surrounding areas

Approved (Corporate)

In business since 2019

Free estimates

Warranties offered

"We cannot say enough good about Dylan, Seth and Tim. 3 very hard workers. Lifting heavy heavy loads of concrete and stone up my and down my cellar and porch steps. They never stopped for breaks. Great workers. Respectful and pleasant and knew their job requirements. Very careful with doors, floors etc It?s a messy job. ThankYou"
Foundation
Foundation
Foundation
Foundation
Foundation

+14

299 neighbors recently requested a quote
Avatar for The Basement Transformer
The Basement Transformer
3.3(
8
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Harris, NY and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

The Basement Transformer is proud to provide innovative basement waterproofing, basement finishing, crawl space, and foundation repair services to improve the comfort and safety of your home. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!\n

Basement Transformation
Unfinished Basement
Response time1 day
Response rate100%
17 neighbors recently requested a quote
Hydro-Solutions, Inc.
3.2(
3
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Harris, 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
Avatar for Basement Systems Of New York
Basement Systems Of New York
3.5(
20
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Harris, NY and surrounding areas

In business since 2002

Free estimates

Credit card accepted

"we are selling our home and had water in the crawlspace. bs of ny waterproofed and insulated the crawlspace. an expensive fix, but one that is working and will hopefully allow us to sell the house. they were very clean and professional. crew of at least 6 and foreman came and finished job in 2 days and came back to insulate week later with a crew of one. very happy with the work and the financeing they gave us access to."
Response time2 days
Recommended by84%of homeowners
Showing 1-10 of 43
Basement Waterproofing FAQs, 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.

Yes, outside leaks can easily cause damage to your home if you don’t have waterproofing measures in place. Regularly check your property for signs of a leak, ensure your home’s landscaping is at least at a 5% slope, your basement windows are sealed, and you have an aligned gutter system to catch rainwater.

If your basement often leaks after heavy rain, it’s probably caused by hydrostatic pressure. When the ground is saturated with water, it can put pressure on the exterior of your home’s foundation, causing cracks in the basement wall and pushing water through any existing weak spots. Over time, hydrostatic pressure can cause structural damage to your home.

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

Whether to waterproof your basement from the interior or exterior depends on several factors, including your budget.

Exterior waterproofing is generally considered the superior method because it stops water at the source, preventing it from seeping into and damaging your basement walls. This approach offers the most protection, making it ideal if you use your basement for storage.

By contrast, interior waterproofing is often less expensive and requires less labor because the area is more accessible.

For maximum protection against water leakage and moisture, applying waterproofing measures to both the inside and outside is the best solution. However, if you must choose only one, stopping water from the outside is the most effective approach to preserve your foundation and prevent damage.

The Harris, NY homeowners’ guide to basement waterproofing services

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