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  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon19
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Union

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

Serving Union, CT and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"We just had American Dry Basement install a waterproofing system in our basement. We've had issues with water in our basement and needed a total solution so we can sleep at night and go away without worrying about flooding. Steve T from American Dry came to our house and presented us with what the solution will look like and thoroughly explained the entire process. He also answered all our questions and was always available to talk to. He is extremely knowledgeable and an excellent professional to work with. Then Wilson and his two-man crew came to do the work and they were all professional, extremely hard working and respectful of our home. They always started early and worked all day long to get the job completed. They wrapped up all items that were still exposed after we cleaned out most of our basement, used vacuums and filters to minimize all the dust and left our basement cleaner than it was before. We highly recommend American Dry Basement Systems and we're so happy we chose them over the others we received estimates from. And their price was more than competitive for what we believe is a much better solution."
Drainage Trench
Jackhammer
Mixing SuperCrete
Compress Wash Stones
Spreading SuperCrete

+7

Response time11 hrs
10 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 Union, 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
20 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Advanced Basement Waterproofing LLC
Advanced Basement Waterproofing LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Union, CT and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs.\nIt is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project.\nIn order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer \nin a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Knell walls
Knee Walls
After
Before
Concrete Work

+1

327 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.9(
13
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Union, 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

532 neighbors recently requested a quote
Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
223
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Union, CT and surrounding areas

In business since 1987

Free estimates

Warranties offered

"Excellent job.... Keith knew exactly what was wrong with our garage wall, he explained everything in great detail and offered us the right solution. The work was done in a timely manner. We are very pleased. Thank you CT Basement!"
Finished basement in CT
Basement Finishing in CT
Basement Finishing in CT
Basement Finishing in CT
Basement Finishing in CT

+13

Response time10 hrs
184 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for My Home Solutions LLC
My Home Solutions LLC
4.8(
85
)
Basement Drainage Channels - Install

Serving Union, CT and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Very pleased with Mike Tullo and his crew. Mike is very professional and personable. There were no real surprises on this job. I knew what was going to be done and when. Mike actually did my job in advance of what was anticipated. The job was done in a day and a half. Everything was cleaned up and the dumpster was removed immediately. The price of the job was very good. The entire roof of the house was ripped and replaced with a very good 30 year warranteed shingle. I can highly recommend Mike and his company from the experience I had."
EXCAVATION-FRENCH-DRAINS
DECKS
EXCAVATION-FRENCH-DRAINS
DECKS
EXCAVATION-FRENCH-DRAINS

+49

Response time5 hrs
Response rate98%
Recommended by71%of homeowners
Avatar for M & M Construction LLC
M & M Construction LLC
4.6(
76
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Union, 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 50
Basement Waterproofing questions, answered by experts

The most challenging part of finishing a basement is addressing moisture control. Basement waterproofing is an essential task that requires a professional’s skills and knowledge. If you don’t properly waterproof your finished basement, it’ll be vulnerable to dampness, water damage, and mold growth. Ensuring proper insulation and ventilation to combat these issues while meeting building codes adds complexity to your remodeling project.

Since basements are prone to water and moisture issues and the resulting problems can be expensive to repair and potentially damaging to your home, basement waterproofing is almost always worthwhile. Even for homes that haven’t experienced water infiltration, waterproofing the basement is insurance against facing expensive repair bills in the future. All basements will leak at some point, so fixing drainage issues and taking steps to prevent moisture and water infiltration is wise.

The least expensive basement waterproofing methods include grading soil away from your home, installing downspout extenders on your gutter system, and applying a waterproof paint on the interior of the foundation walls. Installing a French drain is a relatively inexpensive method if you do the work yourself, although it’s labor-intensive and can be challenging to install properly.

Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.

Most houses will have vents in the crawl space. This allows for air passage and energy retention, which in many ways can help control the temperature inside the home. If you are able to consider the cost of a crawl space encapsulation, you may not need your crawl space vents at all. 

The Union, CT homeowners’ guide to basement waterproofing services

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