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Best basement waterproofing pros near Jefferson, NY

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

Avatar for Adirondack Basement Systems, Inc.
Adirondack Basement Systems, Inc.
4.6(
107
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Jefferson, NY and surrounding areas

Approved (Corporate)

In business since 1998

Free estimates

Warranties offered

"⭐⭐⭐⭐⭐ We had Adirondack Basement Systems come to our home to lift our foundation, and we could not have been happier with the experience. Mikey, the foreman, and Justin, the installer, were absolutely fabulous from start to finish. Both were professional, friendly, knowledgeable, and incredibly efficient. They took the time to make sure the job was done right, kept us informed throughout the process, and made what could have been a stressful home repair feel completely manageable. It is so refreshing to have a crew come into your home who clearly takes pride in their work and also genuinely cares about the customer experience. Mikey and Justin represented Adirondack Basement Systems exceptionally well. We would absolutely recommend both of them, as well as Adirondack Basement Systems, to anyone needing foundation or basement work. Five stars all around. Thank you, Mikey and Justin, for such a positive experience!"
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SaniDry Sedona Dehumidifer
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+9

Response time12 hrs
Response rate100%
9 neighbors recently requested a quote
Avatar for All Dry Basement
All Dry Basement
4.2(
22
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Jefferson, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Review of work to be done at initial app including pricing and step by step work details. Some available options and date of work start date discussd. All work competed on time and to my satisfaction.System works fine and warranty is transferrable. The whole team was friendly and hard working. Price determined by size of basement and options selected."
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+7

Response time1 day
Response rate100%
21 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
5.0(
6
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Jefferson, 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

220 neighbors recently requested a quote
Hydro-Solutions, Inc.
3.2(
3
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Jefferson, 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 SS Excavation
SS Excavation
New to Angi
Basement Drainage Channels - Install

Serving Jefferson, NY and surrounding areas

Approved

In business since 2021

Free estimates

Small jobs welcome

SS Excavation is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 8 years of experience serving Schoharie county, NY and surrounding areas. We offer all types of excavation,grading work, brush and land clearing. Call today and let us put our experience to work for you!

Response time2 days
Rimco Spray Foam Insulation and Weatherization
5.0(
4
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Jefferson, NY and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"We have a basement that looks like new. The walls are all newly water-proofed, foundation cracks are sealed, and ceiling joist gaps are filled in to help increase energy efficiency. It is a huge relief to know that our water issues have been addressed."
Response time2 days
Response rate98%
Avatar for High Tech Construction Co
High Tech Construction Co
4.3(
43
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Jefferson, NY and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"My rear facade wall was falling apart, there was apparent deterioration, cracks falling apart. I was recommended to High Tech by our community board. Scaffold was used for this project. They chipped out the 4-story facade and applied wire-mash. First coat of cement was for curing and the second coat was  the finishing coat. The finishing coat was very finely re-finished. The back-wall was waterproofed with thoro-coat.  My roof was leaking as well at multiple places, bubbles had been formed with water seeping in, leaving into my kitchen. The weather was very rainy and stormy at that time and thanks to High Tech they repaired my roof by placing a new layer roof on top of the existing roof and stopped the leak. High Tech remains as one of the top recommended company in our community board."
Facade Restoration - High Tech Construction Co
stoop restoration -high tech construction co
Wood Stoop
Limestone Stoop
brownstone stoop and facade restoration

+20

Recommended by81%of homeowners
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Basement Waterproofing FAQs, answered by experts

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast—ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.

One handy thing about whole-house dehumidifiers is, once installed, you don’t have to worry about placement or changing the dehumidifier’s position. But if you are using a portable dehumidifier, we suggest keeping it away from walls, vents, and furniture. It needs a central, unobstructed spot with access to lots of air to do its job.

Proper basement ventilation is very effective at reducing humidity. Without enough ventilation, your basement is prone to mold and moisture damage. Your basement should have as much natural ventilation via windows and doors as possible, and if your budget allows, you should also consider installing an ERV system to keep basement humidity levels at bay.

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.

Yes, basement insulation needs a vapor barrier due to its susceptibility to moisture seeping in from the outside of the house. You should install a moisture barrier before you install insulation or purchase insulation that comes prebuilt with a moisture barrier to avoid water damage in your insulation and costly mold and water remediation expenses. 

The Jefferson, NY homeowners’ guide to basement waterproofing services

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