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Verified Reviews for Basement Waterproofing pros in Nelliston, NY

*The Angi rating for Basement Waterproofing companies in Nelliston, 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 Nelliston, 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 January 06, 2025

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

Avatar for Groundworks
Groundworks
5.0(
6
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Nelliston, 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

237 neighbors recently requested a quote
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Avatar for SS Excavation
SS Excavation
New to Angi
Basement Drainage Channels - Install

Serving Nelliston, 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
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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 Nelliston, 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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J&S A-Z Contracting
4.4(
7
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Nelliston, NY and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"They were very professional. The job was done a day before scheduled end date. The work was great. Everything that I wanted done was done. I didn't need to watch over them to make sure the work was complete. I would definitely trust them to do future work."
Bathroom redo
Before
Vynal not glued but mail Before
Before
Before

+19

Recommended by85%of homeowners
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Basement Waterproofing FAQs, answered by experts

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.

If you decide to fill the space around your home’s foundation with landscaping materials, it’s important to consider the aesthetic as well as technical factors like drainage and protection from pests and the elements. Materials such as gravel, rubber mulch, concrete, and brick masonry are all good options.

Water leakage through window openings is much more common in older homes, but it can also create issues with window frames that are improperly installed. If left unattended, water buildup can cause damage to surrounding fixtures, lead to harmful mold, and compromise the architectural integrity of your home. The potential damage that a water leak poses makes investing in weather- and water-proofing your window frames entirely worthwhile.

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. 

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. 

The Nelliston, NY homeowners’ guide to basement waterproofing services

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

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