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TRUSTED BY UNION, CT HOMEOWNERS

  • 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

"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
6 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

"Jon was my contact person. He was personable, informed, and responded to all my questions in a timely manner. The work was done impeccably and in less time than was estimated. We have had a couple of rainstorms and snow and I am happy to report not a drop of water in my basement! Thank you Eastern Waterproofing Inc!; thank you, Jon! Satisfied Customer, Ayleen D, Hartford, CT"
broken walk
repai
repair
addition
sidewalk and dumpster pad

+67

Response time2 days
18 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

337 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

581 neighbors recently requested a quote
Avatar for Eco Energy Solutions, LLC
Eco Energy Solutions, LLC
3.5(
25
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Union, CT and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

Fogarty's Home Services by Eco Energy Solutions, located in Windsor, CT, is your resource for all of your residential Dr. Energy Saver, Total Basement Finishing and National Radon Defense needs. We offer a complete range of home comfort and energy efficiency products and services. Call today for a free home energy evaluation, waterproofing estimate, radon testing and mitigation solutions or ideas and an estimate on how to turn your basement into a comfortable and beautiful living space. We are licensed in both Massachusetts and Connecticut, Let us help you.\nWe Fix Uncomfortable Homes!\n\nOur experience and passion for understanding homes and homeowners sets us apart from the rest. We are not just a contractor; we seek to provide the answers and solutions to your questions and problems. \n\nWe offer residential services to homeowners only and are unable to accommodate new construction at this time.

Before and After
Insulating Knee Wall
Before
Moldy Insulation
Before

+22

Response time1 day
Recommended by92%of homeowners
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
158 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

We are a full-service contractor. We provide Wet Basement services, Sump pump installation with battery backup systems, Sump pump discharge lines, Basement drains, Foundation drains, French drains, Yard drains, Clearing and Re-grading properties, Stone Patios, Retaining walls, and stone driveways.

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

"The work performed was incredible. AJ and his team are real pros. The cost for all of the work they performed was more than reasonable. AJ came out for an estimate and explained the work he was going to do and gave me options on what different things he could do to help me out. He kept my wife and I in the loop every step of the way during the project. In addition, the crew didn't rush the job. They made sure the job was done right. Before the work was performed our basement would flood very easily when it rained. After the work was performed it rained and the basement was bone dry. This was a huge relief. Not having to mop up water every fifteen minutes was wonderful. Our sump pump doesn't run half as much as it used to. Basically, my wife and I are thrilled with the work performed and highly recommend AJ and his team to anyone
"
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

Basements are commonly converted into game rooms. The potential challenges you may run into include controlling moisture, working with low ceilings, limited natural light, and the need for additional electrical or HVAC work. Addressing these issues can add to the total cost, but it ensures a comfortable and functional space.

Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance. 

The cost of a walkout basement can be anywhere from $5,000 to $35,000.

In perfect conditions—meaning, no overexposure to the elements without roofing material on top of it—an ice and water shield can last for decades. In fact, many come with a limited lifetime warranty because they should last for a long time. If, however, the membrane is exposed to the elements during building or if there is a delay in installing the roofing material, it might only last up to 180 days if exposed to the elements. The key is to make it a layer of protection and then protect that layer by installing the roofing.

Water damage to concrete is often gradual and can take months, if not years, for a concrete structure to be fully destroyed. The process often starts with cracks on the surface, followed by sinking slabs and eventually crumbling cement. Therefore, it is important to repair minor damages early to prevent the situation from worsening.

Standing water under your house can threaten its structural integrity. If water pools in your crawl space, it can damage the foundation and the structure above ground, causing wood rot, mold, and other problems. If you have a concrete foundation, standing water under your house can also make your foundation slabs crack.

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.