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Avatar for Precision Waterproofing, LLC
Precision Waterproofing, LLC
4.8(
234
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Diamond, OH and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"Rick and his team at Precision Waterproofing did an amazing job installing sump pumps in our basement. They were courteous, hardworking, and completed the project efficiently. I was especially impressed with the care they took with both the prep work and cleanup. Basement waterproofing can be a very dusty job, but they went above and beyond to protect our home and left our basement and the surrounding areas in great condition when they were finished. I would definitely recommend Rick and Precision Waterproofing to anyone needing waterproofing work."
Original driveway
During
During
Finishing up
Complete

+19

Response time11 hrs
Response rate88%
82 neighbors recently requested a quote
Avatar for America's Basement Contractor
America's Basement Contractor
4.3(
128
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Diamond, OH and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"We had our basement waterproofed in May 2019, the crew was out for 3 days. They also did some landscape grading. It's been 1.5 years and no problem. Very professional company. If I have any questions Carl or his wife, Jayna, respond promptly. I would highly recommend ABC for waterproofing a basement."
Mold Remediation
Mold Remediation 2
Wall Anchors
Before 1
 Insulated thermal wall wrap and drainage board

+96

Response time1 day
Response rate85%
79 neighbors recently requested a quote
Avatar for DryTech Basement Waterproofing
DryTech Basement Waterproofing
4.9(
18
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Diamond, OH and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"They did a great job installing French drains and sump pump in our basement. Great communication! They changed work plan to cater to our needs and got it done in one day, staying until it was finished. Very reasonably priced!! Highly recommend!!"
BBB
Process
Spring 2026 Projects
Spring 2026 Projects
Spring 2026 Projects

+12

Response time6 hrs
18 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Highlander Waterproofing, Inc
Highlander Waterproofing, Inc
3.9(
61
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Diamond, OH and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"The Highlander Waterproofing team arrived on time. They were cordial, evaluated the the job and began work immediately. They were very professional, having the knowledge and skills to successfully complete the job. Would highly recommend Highlander Waterproofing, excellent job in reinforcing and strengthening the basement wall."
Dark, discolored block and silt
Cove area leaking and efflorescence on the block
Separating Block
Step Cracks and Discoloration
After Pic of Basement Waterproofing Project

+22

Response time7 hrs
29 neighbors recently requested a quote
Recommended by85%of homeowners
All County Drainage Contractors
4.8(
199
)
Basement Drainage Channels - Install

Serving Diamond, OH and surrounding areas

Approved

In business since 1980

Free estimates

Warranties offered

"They did a quick and good job of replacing our water heater. Called again due to standing water in our yard after every rain. They came out and installed a drain and tied my downspouts into it. They also put the excess dirt against the house to improve the grading. I can say after the fall rains and the repeated freezing/thawing in winter that the drain has kept everything dry and we have had no more water issues in the basement. I would recommend these guys."
Response time7 hrs
Response rate100%
Recommended by97%of homeowners
Avatar for Healthy House Systems
Healthy House Systems
5.0(
17
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Diamond, OH and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"I had a pretty bad flood in my basement after the heavy storms that came through back in June. I realized that my sump pump was the reason so I needed to replace it. I wanted something with more horsepower and after doing some research, I decided an ejector pump would work best for my home. Tyler was very friendly and understanding of my situation. He told me about some options, gave me the literature and a fair price for what I wanted. He and his team were very professional and attentive and definitely knowledgeable about the equipment and installation process. I was a little apprehensive about going with a company that’s just starting out, but Tyler gave me a good feeling about their company and products. I’m very happy with the installation and the service I received. I wouldn’t hesitate to contact them again (although I hope I never have to) for any future needs. We have multiple rental properties, so I would call him first if I ever need service at any of them. A+++"
Bowed Wall
Interior Drainage System
Interior Drainage System
Interior Drainage System
Structural Bracing

+10

Response time1 day
Response rate98%
22 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.2(
929
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Diamond, OH and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1999

Free estimates

Warranties offered

"The waterproofing crew(Kingsly, Nick, Richard, DeMario, and Demonti, and Rocco) were extremely, knowledgeable, professional., and hardworking! They kept me informed with each step of the waterproofing project and explained it all very thoroughly. They were very neat throughout the process and cleaned up well at the end of each work day. I would highly recommend Ohio Basement Systems for waterproofing and\or foundation work meeded!"
Crawl Space
Crawl Space
Crawl Space
Crawl Space
Crawl Space

+14

Response time1 day
852 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for WyattWorks
WyattWorks
4.7(
571
)
Basement Drainage Channels - Install

Serving Diamond, OH and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1979

Emergency services offered

Warranties offered

"Wyatt did an awesome job. This was a major job. I had a water pipe break just under the house foundation. They initially believed it could be reached from the outside, but determined the break was just under the foundation. Because of this, they needed to break up the concrete floor in the basement at the outside wall. They carefully removed the floor molding and the wood boards before jackhammering a 2 foot by 1 foot hole at the edge of the floor at the outside wall. They were very neat and tidy. The broken pipe was fixed in less than a day. They then cleaned out many of the faucets and came back the next day to adust the water pressure and be sure all faucets were working properly. They kept us informed at all steps of the process and the cost was less than their estimate. We highly recommend Wyatt for your plumbing needs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time8 hrs
24 neighbors recently requested a quote
Recommended by93%of homeowners
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Basement Waterproofing questions, answered by experts

In most cases, it is safe to live in a home with minor foundation problems, but you should not let the issues persist. Virtually all foundations have small cracks from normal settlement, which are not a structural concern but should be sealed to prevent water intrusion. However, major damage—such as large structural cracks, sinking foundations, or bulging walls—can make a home unsafe. Other issues that can pose safety and health risks include poor indoor air quality from mold or pests, uneven floors, and rotten beams or joists. It is always best to have a foundation repair expert or structural engineer inspect any issues to determine if your home is safe to live in.

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.

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.

Flooded basement cleanup can take anywhere from a few days to several weeks, depending on the extent of water damage, the type of water involved, and the need for repairs or mold remediation. Severe cases with structural damage or extensive mold may require longer timelines. Quick action and professional help can speed up the process and reduce overall damage.

While "dry" mode on your AC can help reduce humidity levels to some extent, it may not be as effective as a dedicated dehumidifier, especially in areas with extremely high humidity or larger spaces. Dehumidifiers are specifically designed to remove moisture from the air more efficiently, making them a better choice for tackling persistent humidity issues.

The Diamond, OH homeowners’ guide to basement waterproofing services

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