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Best basement waterproofing pros near Union, OH

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    Average homeowner rating
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    Verified basement waterproofing services reviews

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

Avatar for Stay Dry Waterproofing - Columbus
Stay Dry Waterproofing - Columbus
4.0(
54
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Union, OH and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"I reached out to Stay Dry Waterproofing for a quote on waterproofing my basement. They told me (as did other companies) that I needed to put a gutter system in my basement to alleviate pressure on the foundation and prevent future water damage. The sales team and inspector were very knowledgeable, friendly, and prompt when answering my requests. I did not go with this company because the price to do the work was almost double what the other two companies quoted me. This is also why I am giving them a "C'" rating."
Interior Waterproofing
Interior Waterproofing
Interior Waterproofing
Interior Waterproofing
Interior Waterproofing

+23

Response time1 day
Response rate100%
21 neighbors recently requested a quote
Avatar for Everdry Waterproofing of Cincinnati
Everdry Waterproofing of Cincinnati
3.9(
261
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Union, OH and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"Everdry was very responsive, thorough and honest through the process. Being a first time home owner I was at a loss with the whole process but they explained everything well. Also, the actual process of waterproofing my basement was quick and efficient, have not had a problem in the last two years...and we have had a lot of rain!!"
track pic
Response time10 hrs
23 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Stay Dry Waterproofing, LLC
Stay Dry Waterproofing, LLC
4.7(
1,116
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Union, OH and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I was helping source waterproofing companies for my son when I came to visit his house in Toronto in last summer. I reached to a few waterproofing companies, and Stay Dry Waterproofing was selected based on the reviews, meeting with them on site and their quote. The job took less then a week to complete and things went as planned. In general, we are satisfied with the works performed, and its great to see a dry basement ."
Drain tile sump pump system
Sample
Before and After Mold Remediation
Steel Beam wall push
Completed job

+93

Response time1 day
117 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Humble Brothers Waterproofing
Humble Brothers Waterproofing
4.9(
36
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Union, OH and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"Timely coming out and giving a quote. Scheduling work was painless and there were no surprises when it came to the work. They were timely and cleaned up after themselves. Work was completed a year ago and my basement is completely dry now"
Drain Tile
trench
pit and pump
Response time1 day
Response rate90%
Recommended by79%of homeowners
Avatar for Groundworks
Groundworks
4.6(
917
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Union, OH and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"We just had Jayson Wright, Service Manager, to our residence to do an inspection of our egress window and a potential water issue on one of the basement walls. Jayson did an excellent job and explained everything that we were concerned about. I fully recommend Jayson Wright and Groundworks for any and all basement issues involving waterproofing."
Concrete
Concrete
Concrete
Foundation
Foundation

+14

Response time10 hrs
886 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Concrete & Waterproofing, LLC
Concrete & Waterproofing, LLC
5.0(
6
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Union, OH and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"Concrete pro installed a drainage system in our basement. It is now bone dry and looks great. They walked us through every step of the way and gave us an extremely affordable quote."
1
2
3
4
5

+138

Response time1 day
6 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for The Basement Doctor of Cincinnati
The Basement Doctor of Cincinnati
4.2(
178
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Union, OH and surrounding areas

Approved (Corporate)

In business since 1987

Free estimates

Emergency services offered

"They fixed the leak and put in a sump pump and water trench. The basement leaked 2 more times afterwards, but they returned to correct it right away. We were responsible all 3 times to repair the drywall and wood landing at the bottom of the stairs,so I called saying that I should not have to keep fixing those thing over and over. The CEO of the company called back and came out to the house himself to inspect. He had his people come out to the house again to do more that he felt would fix the problem for good, as well fixing the drywall and landing at no cost. It was a frustrating experience, but this company and it's CEO stood by thier work and made it right. I would use them again."
After Encapsulation
Before Slab Repair
After Slab Repair
Sump Pump
Wet Basement

+8

Response time2 days
Response rate100%
16 neighbors recently requested a quote
Avatar for Concrete Pro
Concrete Pro
5.0(
6
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Union, OH and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"We had a water issue in our basement, and when we called, one of the owners of Concrete Pro discovered it was from our HVAC condensation line. They explained the issue ( call the HVAC guy). So impressed with the honesty and would refer to anyone"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+90

1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Acculevel, Inc. - Ohio
Acculevel, Inc. - Ohio
3.9(
226
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Union, OH and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"This is a great company to use in making a 141 year old basement waterproof. I look foreward to having a waterproo basemant. Craig was pleasant and went the extra mile to make the experience great."
Commercial Waterproofing
Commercial Waterproofing
Commercial Waterproofing
Commercial Waterproofing
Commercial Waterproofing

+26

485 neighbors recently requested a quote
Recommended by87%of homeowners
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Showing 1-10 of 97
Basement Waterproofing FAQs, answered by experts

In most climates, contractors recommend closing your crawl space vents in winter. Keeping them shut protects your crawl space from freezing temperatures, pests, and cool breezes that can lead to chilly floors in your home. However, it's often best to speak with a local crawl space team about your specific design and its relationship to the winter season.

Yes, you can add a bathroom to an unfinished basement, but you’ll want to take proper precautions if doing so. As with any bathroom addition, you’ll need to make sure that it’s approved by local building authorities first. With unfinished basements, you especially need to keep an eye on proper ventilation practices.

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

Crawl spaces are prone to issues caused by excess humidity and improper ventilation, but that doesn’t mean you should avoid buying a house with a crawl space. A home that is encapsulated and well-maintained shouldn’t have any more issues than a slab or basement home.

Standard homeowners insurance policies may cover basement water damage or flooding, but only if it is caused by a sudden and accidental event that is a covered peril, such as a burst pipe or a failing appliance. Damage caused by natural flooding from extreme weather, groundwater seepage, or heavy rain is typically excluded and requires a separate flood insurance policy. Some insurers also offer an optional water backup endorsement for issues like sewer backups. Review your policy or speak with your agent to understand your specific coverage.

The Union, OH homeowners’ guide to basement waterproofing services

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