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Best basement waterproofing pros near Ottawa, OH

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Top-Rated Basement waterproofing pros in Ottawa - 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 Ottawa, OH and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"I recently had the pleasure of working with Stay Dry Waterproofing and I can confidently say that they are the best waterproofing company in town. From start to finish, their team of experts were professional, knowledgeable, and attentive to my needs. The project manager, Brock, was fantastic to work with. He took the time to thoroughly explain the waterproofing process and answered all of my questions with patience and expertise. He also provided a detailed timeline for the project, which helped me plan accordingly. The installation crew arrived on time and worked diligently to complete the project on schedule. They were respectful of my property, kept the work area clean, and were mindful of noise levels. Overall, I was extremely satisfied with the quality of work and level of service provided by Stay Dry Waterproofing. My basement is now completely dry and I have peace of mind knowing that my home is protected from water damage. I highly recommend this company to anyone in need of waterproofing services. They truly deserve 5 stars!"
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
Everdry Waterproofing
4.4(
219
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Ottawa, OH and surrounding areas

Approved

In business since 1986

Free estimates

Warranties offered

"We have been happy with the waterproofing that was performed by Everdry of Toledo. We did have a few issues once the job was completed, but after calling in and discussing the issues, they were able to send technicians back to our house and the problems have been resolved. We have now been dry since 2014. Thanks from JRN Bryan, Oh."
Response time1 day
8 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Groundworks
Groundworks
4.6(
917
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Ottawa, 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
888 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Mid-State Basement Systems
Mid-State Basement Systems
5.0(
17
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Ottawa, OH and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"Mid-State Basement Systems came highly recommended by a good friend from Buffalo, NY and they did not disappoint. From start to finish they were very professional yet personable. Larry & Phil in the initial stages of the basement inspection and a reasonable quote. Silvino and his team who done the actual work was incredible, done with absolute excellence. They were here when they said they would be and finished the job a day ahead of schedule. I am thoroughly pleased with this company, first class. I highly recommend them if you need work done on your basement.******"
Before
After
Foundation Before
Foundation After
Modernized Basement

+6

Response time2 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Acculevel, Inc. - Ohio
Acculevel, Inc. - Ohio
3.9(
226
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Ottawa, 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

482 neighbors recently requested a quote
Recommended by87%of homeowners
Pride Custom Construction
4.4(
52
)
Basement Drainage Channels - InstallFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Ottawa, OH and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

Pride Custom Construction, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time9 hrs
Response rate92%
15 neighbors recently requested a quote
Avatar for Landmark Excavation and Drainage
Landmark Excavation and Drainage
New to Angi
Basement Drainage Channels - Install

Serving Ottawa, OH and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. \n

Response time7 hrs
3 neighbors recently requested a quote
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Basement Waterproofing FAQs, answered by experts

A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it’s a plumbing line embedded in your slab, you’ll also likely notice above-average water bills.

No, you don’t want your crawl space to be wet because water and even moisture in the air under your home can attract insects and rodents, decrease your indoor air quality, increase your energy bills, promote mold growth, and even lead to structural damage. If you notice any signs of water or humidity in your crawl space, you should get the issues addressed immediately by contacting a professional. They can remove moisture and will know how to waterproof your basement to prevent ongoing problems.

Topical sealers adhere to the surface of concrete to create a protective layer. In many cases, this is all you need for concrete that sees light to moderate traffic, such as your basement. Penetrating sealers, on the other hand, bond with the free lime in the top layer of concrete to form calcium silicate, which prevents liquid from passing through. This type of sealer protects the surface from water, oil, and gasoline spills.

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.  

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

The Ottawa, OH homeowners’ guide to basement waterproofing services

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