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Best basement waterproofing pros near Sterling, CT

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

Avatar for American Dry Basement Systems, LLC
American Dry Basement Systems, LLC
4.9(
118
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sterling, CT and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"I had my basement waterproofed almost 3 years ago by them and I had no issues since then with the basement flooding regardless of how much it rains. I highly recommend using American Dry Basement!"
Drainage Trench
Jackhammer
Mixing SuperCrete
Compress Wash Stones
Spreading SuperCrete

+7

Response time11 hrs
3 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Set In Stone
Set In Stone
4.3(
23
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sterling, CT and surrounding areas

In business since 1982

Free estimates

"Ray and his team were incredibly professional, kind and courteous throughout all of the home projects. Their work on my basement foundation, installation of French drains and the rebuilding of an exterior wall were all phenomenal and at a very fair price. I highly recommend their services 10/10"
Recommended by86%of homeowners
Quality Dry Basements Inc
3.6(
31
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sterling, CT and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"

The first step involved trenching the inside perimeter of the basement slab, which was relatively new and required substantial work with jack hammers (very dusty and noisy). The trench was about 18" wide and 18" deep to accommodate the perforated pipe and the surrounding material consisting of hard plastic "peanuts" to facilitate drainage.  Workmen also installed corrugated plastic on the vertical wall surfaces so that should any water enter higher up on the wall it would be directed into the trench. The trench was then covered with a clear plastic vapor barrier, after which cement was floated over everything and leveled with the rest of the slab.  NOTE: the trenching is very destructive and the workmen will remove any finished elements - baseboard, sheetrock, framing, carpet etc. - to access the walls and foundation. Be prepared to budget repair work on any already-finished areas once the work is done.

The team was invariably punctual, thoughtful and kept the work area clean. Charlie stopped by regularly to ensure the project was moving along as planned and helpful throughout. When finished, the crew cleaned up well and left the site in good shape, although it took some time finally to get rid of the dust.  My only disappointment was that the backup batteries were left in their cases on the floor, when it seemed that they should have been up on a shelf away from harm.

The good news is that our basement has not seen any moisture since the system was installed.  We've experienced some bad storms combining rain over frozen ground and snow and water clearly was getting through the foundation.  We saw the pumps moving significant amounts of water out of the house and the system has been completely reliable.  Finally we were able to finish the basement as we'd hoped because we're confident the drainage system is protecting the investment.


"
Recommended by60%of homeowners
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Basement Waterproofing FAQs, answered by experts

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. 

In most cases, a crawl space will not dry out on its own unless the moisture comes from an uncommon flood and isn’t expected to be a recurring issue. For most homeowners, moisture problems in the crawl space will only continue to get worse over time, so addressing the underlying problem with gutter systems or a foundation drainage system and setting up a preventative solution like a dehumidifier is necessary.

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.

When doing any type of project involving mold, it's important to wear the right protective gear. You'll want an N-95 or KN-95 mask to keep yourself from inhaling mold spores, which can be irritating or trigger an allergic reaction in people with weakened immune systems. You'll also want to wear protective eyewear and gloves to limit your contact with mold.

Yes, cleaning a crawl space is worth the cost. Although it's an out-of-sight area, neglecting it can lead to significant problems like pest infestations (including termites and carpenter ants), mold, and fungal growth, which can cause structural damage. Regular cleaning helps prevent these issues. While hiring a contractor has ongoing costs, the price for cleaning—typically between $0.50 and $4 per square foot—is much lower than the cost to remediate a pest or mold problem. Additionally, a clean crawl space can lead to improved indoor air quality and more comfortable temperatures in your home.

The Sterling, CT homeowners’ guide to basement waterproofing services

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