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Best basement waterproofing pros near Norwich, CT

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    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Norwich - 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 Norwich, 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 Eastern Waterproofing Co., Inc.
Eastern Waterproofing Co., Inc.
4.6(
40
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Norwich, CT and surrounding areas

Approved

In business since 1976

Free estimates

Warranties offered

"Everyone was really good to work with at the beginning of the waterproofing to the very end. No complains about the completed Job. I have yet to see the system work because we just have not had Heavy rain over a Long period of time."
broken walk
repai
repair
addition
sidewalk and dumpster pad

+67

Response time2 days
6 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Groundworks
Groundworks
4.9(
13
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Norwich, CT and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

Groundworks is the North America's leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we're there with one mission to repair, protect and improve their home. For state licenses visit Groundworks.com/licensing

Foundation
Foundation
Foundation
Concrete
Concrete

+16

385 neighbors recently requested a quote
Avatar for My Home Solutions LLC
My Home Solutions LLC
4.8(
85
)
Basement Drainage Channels - Install

Serving Norwich, CT and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Our experience with Tullo's Home Improvement was good. Mike was very willing to work with us and take the time out of his schedule to meet with us a few times before we made a decision. After all the work was done, we realized that we made the right decision. Work was completed and very professional; once the work was done you couldn't even tell, except for a very nice new roof. Everyone at Tullo's Home Improvement that we have had contact with during this project was very pleasant, understanding and respectful. This was definitely a great project with the help of Tullo's Home Improvement."
EXCAVATION-FRENCH-DRAINS
DECKS
EXCAVATION-FRENCH-DRAINS
DECKS
EXCAVATION-FRENCH-DRAINS

+49

Response time5 hrs
Response rate98%
Recommended by71%of homeowners
Avatar for The BullBag
The BullBag
5.0(
15
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Norwich, CT and surrounding areas

In business since 2001

Credit card accepted

"I have now had 4 pickups from this company. Each time it has been with different items: I have had my kitchen remodeled,  a deck torn down and rebuilt, a new roof put on, old fencing disc arded, and a yard cleanup. The only difference in pricing was for the roofing and even though ti was more money it was STILL CHEAPER than a dumpster!!! I don't know how these guys do it, but they pickup on time, without issue andfor the cost quoted. I have turned each of my contractors onto them - now they are using them. SO MUCH cheaper and better service than any dumpster company I have used!"
The BullBag truck in MA
The BullBag truck in NY
Toys for Tots
Recommended by100%of homeowners
Quality Dry Basements Inc
3.6(
31
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Norwich, 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
Avatar for CL Home Restoration
CL Home Restoration
5.0(
1
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Norwich, CT and surrounding areas

In business since 2023

Free estimates

Credit card accepted

Here at CL Home Restoration, we offer interior basement waterproofing including sump pumps interior wall drainage and more. We have been in this industry 5 years and have installed thousands of waterproofing projects for homeowners all over CT. Also, we care for those nasty energy killing crawlspaces as well. From clean outs to properly insulating and more. Lastly we can wrap this up with a beautiful, finished basements that'll last a lifetime!

Doors Project
Recommended by100%of homeowners
Avatar for Griswold Plumbing Services, LLC
Griswold Plumbing Services, LLC
4.6(
132
)
Basement Drainage Channels - Install

Serving Norwich, CT and surrounding areas

In business since 2009

Emergency services offered

Credit card accepted

"Removal of old heavy boiler was clean, quick and efficient. Jeremy came right in after removal to limit our hot water down time. New boiler looks like artwork with straight lines and new pipes and parts! Already paying for itself with greater efficiency (less frequent and shorter running times than old boiler). Could not be happier with new heating system. Jeremy was very professional, knowledgable, communicated realistic expectation about process and costs. Griswold worked straight through until completed then followed up to inspect and be sure we were satisfied or had questions! Also, very damp basement, they added a dehumidification system that had it dry within a week and I have lots of boxes and "stuff we just can't live without" down their that would hold moisture. Now pleasant to go down there and we are storing more valuable items in basement because of climate control."
Additional Photos
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Additional Photos
Additional Photos

+9

Recommended by93%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. 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.

A vapor barrier can last over 20 years, but they are vulnerable to pests, flooding, and other natural disasters. If your home weathers a storm or is treated for any pest infestation, make sure to have a drywall pro come check the integrity of your vapor barrier. It’s also important to have a pro install a vapor barrier since improper installation can lead to tears or leaks in the barrier that shorten its lifespan.

The best basement waterproofing method depends on the specific issue causing the water intrusion. For minor problems, simple solutions like installing a properly functioning gutter system to direct runoff away and grading the soil to slope away from your foundation can be effective.

If you have more significant water problems, the solution will need to be more robust:

  • For standing water on the basement floor, a floor drain or a sump pump system may be the best solution.

  • For water pooling around the foundation, installing an exterior French drain can intercept water before it reaches the basement walls.

Other effective waterproofing methods, which can be used depending on your home's specific needs, climate, and soil type, include sealing the interior walls, landscape alteration, installing interior drainage systems, and using a dehumidification system to control moisture levels.

In some circumstances, foundation refacing or repair may be a better option for your home than sealing a foundation. It’s always a good idea to take steps to prevent moisture problems in your foundation, but if there are any structural concerns, those will usually need to be fixed first. When dealing with foundation issues, it’s a good idea to get a professional opinion so you can avoid bigger problems down the road. 

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

The Norwich, CT homeowners’ guide to basement waterproofing services

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