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Avatar for American Dry Basement Systems, LLC
American Dry Basement Systems, LLC
4.9(
118
)

Serving Cornwall, 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
2 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
223
)

Serving Cornwall, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"the product was excellently done. I am a contractor and I needed the job done quickly to get it on the market. they finished it in one day and left the cellar cleaner than when they came.arrtco llc James stablein project manager t t"
Finished basement in CT
Basement Finishing in CT
Basement Finishing in CT
Basement Finishing in CT
Basement Finishing in CT

+13

Response time10 hrs
151 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Valley Roofing and Construction, LLC
Valley Roofing and Construction, LLC
5.0(
1
)

Serving Cornwall, CT and surrounding areas

Approved

In business since 2012

Free estimates

"excellent experience working with valley roofing and construction to replace our old roof! and their customer service was responsive and personal. on-site crew was efficient and thorough with clean up! after the roof was installed we didn't find a speck of construction debris leftover.definitely recommend using valley roofing and construction"
Response time1 day
Response rate95%
5 neighbors recently requested a quote
Avatar for Empire Construction Waterproofing llc
Empire Construction Waterproofing llc
5.0(
15
)

Serving Cornwall, CT and surrounding areas

In business since 2006

Free estimates

Warranties offered

"Flooding in our basement has been a recurring problem over the years. We’ve had various companies do work for us but they failed to keep our basement dry for longer than a few months at a time and only did a semi okay job. That all changed when we hired Empire Construction Waterproofing. Chris gave me a very reasonable price for the size of our project. They had a team down there starting to work almost right away! They were incredibly professional and worked very efficiently. Once they were done they left the space in great condition. My husband and I were very satisfied with the project. The results went above and beyond our expectations, the quality was unlike anything we’ve ever seen before. It was such a pleasure working with Chris and Empire Construction Waterproofing. I have recommended them to all of my friends and family. If you’re having basement issues definitely give them a call."
Response time12 hrs
Recommended by53%of homeowners
Avatar for Precision Basement Waterproofing, LLC
Precision Basement Waterproofing, LLC
4.2(
13
)

Serving Cornwall, CT and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Glen was awesome and came later in the day because I was a bit panicked about getting water in my basement after the sump pump died. Traveled a long way and I am grateful. Very professional and helpful! Would definitely recommend to friends!"
Sump Pump
Speedy Drain
Pump Warranty
Response time1 hour
Response rate100%
Recommended by88%of homeowners
Avatar for M & M Construction LLC
M & M Construction LLC
4.6(
76
)

Serving Cornwall, CT and surrounding areas

In business since 1965

Free estimates

Credit card accepted

"I am writing this review to acknowledge the power of Angie?s
list as well as to express my satisfaction with the work done by M & M
Construction at my home in Hartford.  We
have a 100 year old house which one rainy day flooded in the basement ? the first
time this had happened in the 15 years we have owned the house.  The flooding was not rainwater, it was backed
up sewage!!!  We had a local plumber,
suggested by friends, check it out as an emergency and after hours and hours of
expensive manipulation managed to cause the backed up sewage to drain and
identified that a main sewage line had partially separated.  The problem was however not solved and with
the next rainstorm flooding repeated in the basement as well as through the
kitchen sink, which caused the entire hardwood floor to buckle.  A repeat visit by the same plumber claimed
that this was an entirely new problem! 
Repeated calls to have this and another plumbing services to address the
problem were futile. 
Searching Angie?s list for service providers to replace the
sewer line led us to M & M Construction. 
On line reviews of them were very favorable, but we did not know anyone
for whom they had done any work.  We got
in touch with Anthony (Principal with the company) and he immediately came out to examine the site and provided
us with an estimate and work proposal. 
We took a chance on the fact that reviews of Anthony?s were a reflection
of what to expect.  He promptly began the
work as proposed.  Searches at the MDC for
layouts of the sewage line turned up negative. 
The only record on file was the point at which the house connects to the
city sewage system.  They began work from
the property edge and found a drain line. 
Went through the entire process of replacing the line but when tested
the problem had not been solved!  So
Anthony and his crew after putting a camera down, identified the brake point of
the sewage line and it turned out that the house has two lines that tie into
the a single line under the sidewalk.  So
they re-dug, found the second line and replaced it at no additional cost to
us!  It was a lot of work, and during
this process Anthony kept us fully informed. 
During this ongoing work, our trust in Anthony grew, and
knowing that we needed a new roof, we asked Anthony if he knew anyone who could
redo the roof.  To our surprise, he
collaborates with a roofer on roof work. 
We visited sites where they were replacing a roof and had good opinions
of their work from the homeowner.  We
contracted Anthony to redo the roof!  The
roofers did a very good job and we are very happy with the work.
As we also needed a new driveway due to flooding in the rear
of the house, and knowing that Anthony had the heavy equipment necessary for
excavation work, we engaged him on another project to redo the driveway and
redesign the parking area behind the house. 
Working with him we designed a permeable paver parking area, with
permeable pavers lining the driveway. 
The layout of the pavers and the driveway was completed before the
winter snows and now what is left is touch ups to complete the project and grow
grass in the permeable pavers.  Heavy
rains in the Fall that would normally have resulted in major flooding in the
rear of the house are a thing of the past! 
The snow melts that have recently occurred resulted in no flooding giving
us confidence of a job well done. 
Planting grass where the work was done and other minor touchups still
remain for the spring which we are fully confident will be completed. 
Anthony is trustworthy, a perfectionist in his work, and
very responsive to questions we raised during all aspects of the work he has
done at our home.  I have told Anthony
that he is welcome to bring any client to see the work he has done for us at
any time. 
Thank you Anthony.
"
Blue stone 1
Blue stone 2
Retaining Wall (Before)
Retaining Wall (After)
Channel Drain

+26

Recommended by93%of homeowners
Showing 1-10 of 38
Basement Waterproofing questions, answered by experts

You can seal a concrete slab by cleaning the surface, filling in any cracks, etching the surface, applying a sealer, and letting it dry. Concrete slabs don't typically need sealing, but you can use a topical concrete sealer if you notice signs of water damage. If you haven't already fixed the cause of the leak, then you'll want to repair the plumbing before you seal a concrete slab.

A sump pump can be added to an existing basement. To do this, you will need to use a jackhammer or sledgehammer to break up the concrete and dig a pit. You will also need to create a hole in your basement wall to run the discharge pipe through.

In most cases, yes, because the large majority of basements leak or will have moisture issues at some point, and waterproofing methods can mitigate that risk or eliminate it entirely. Plus, water and moisture issues can be quite problematic, as they can lead to mold growth, rotting of building materials, structural damage, poor indoor air quality, increased electric bills, and other problems.

When considering finishing your basement, take into account a few pros and cons:

Pros

  • Can increase the value of your home

  • Separate space from the rest of the house 

  • Customize and personalize the basement to suit your needs and style

  • Increase the amount of living space in your home

Cons

  • May not regain enough value to cover the cost of finishing

  • Lack of natural light if it’s below ground level

  • Moisture or flooding can cause costly damage

  • Installing plumbing and electrical can be messy and costly

Rigid foam board insulation is one of the safest insulation materials for basement walls. The panels offer a moisture barrier to prevent mold and mildew build-up. At the same time, this material is also fire-resistant, so you don’t have to worry as much about a fire breaking out as you would with spray foam insulation. 

The Cornwall, CT homeowners’ guide to basement waterproofing services

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

What do you need done? We’ll find top pros.
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