Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Diamond, OH

Enter your zip and get matched with up to 5 pros

Need a pro for your basement waterproofing project in Diamond, OH?

Select your specific project to find the pro for you.

TRUSTED BY DIAMOND, OH HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon193
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Diamond

Avatar for Pioneer Basement Solutions, LLC

Pioneer Basement Solutions, LLC

4.99(
145
)
•Approved Pro

Pioneer Basement Solutions, LLC

4.99(
145
)
•Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
47 years of experience

2024 makes us a 15 time Super Service Award Winner! Full service basement waterproofing, foundation repair, foundation replacement and basement finishing company. Locally owned & operated for over 46 years. We are bonded and insured with employee labor fully covered under worker's compensation. We are not a franchise nor do we sell a "patented" one size fits all system; therefore allowing us the freedom to take a diagnostic approach to our customers' foundation problems and custom fit solutions to their specific needs. Best possible reputation in the industry with Zero Better Business Bureau complaints for history of our company. Award winning customer service!

"The entire process went extremely well. Kyle was very friendly and helpful during the inspection, and Evan and his crew were friendly, efficient and did a wonderful job. They gladly did extra work to help me and I'm truly grateful. I would definitely use their services again!"

Vicky Z on March 2024

2024 makes us a 15 time Super Service Award Winner! Full service basement waterproofing, foundation repair, foundation replacement and basement finishing company. Locally owned & operated for over 46 years. We are bonded and insured with employee labor fully covered under worker's compensation. We are not a franchise nor do we sell a "patented" one size fits all system; therefore allowing us the freedom to take a diagnostic approach to our customers' foundation problems and custom fit solutions to their specific needs. Best possible reputation in the industry with Zero Better Business Bureau complaints for history of our company. Award winning customer service!

"The entire process went extremely well. Kyle was very friendly and helpful during the inspection, and Evan and his crew were friendly, efficient and did a wonderful job. They gladly did extra work to help me and I'm truly grateful. I would definitely use their services again!"

Vicky Z on March 2024

Avatar for Precision Waterproofing, LLC

Precision Waterproofing, LLC

4.90(
192
)
•Approved Pro

Precision Waterproofing, LLC

4.90(
192
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
11 years of experience

With over 30 years experience, Precision Waterproofing, LLC, has serviced all types of foundations from slabs to full basements. We can handle everything from repairing a crack to rebuilding the walls. We offer all methods of waterproofing including interior, exterior or combinations of both based on homeowners needs. We also offer alternatives to traditional waterproofing so call us today for your free consultation.

"All excellent . We liked the owner right from the start. He gave a thorough presentation with No pressure at all. The workers were courteous and did great cleaning up. The project was completed in more than a timely fashion. Rick kept us informed of everything each day. We actually had three other estimates and Precision Waterproofing was a last minute find on Angie's List. And it turned out to be the best. We would absolutely highly recommend him with no hesitation. More than extremely pleased!! "

Karen C on October 2025

With over 30 years experience, Precision Waterproofing, LLC, has serviced all types of foundations from slabs to full basements. We can handle everything from repairing a crack to rebuilding the walls. We offer all methods of waterproofing including interior, exterior or combinations of both based on homeowners needs. We also offer alternatives to traditional waterproofing so call us today for your free consultation.

"All excellent . We liked the owner right from the start. He gave a thorough presentation with No pressure at all. The workers were courteous and did great cleaning up. The project was completed in more than a timely fashion. Rick kept us informed of everything each day. We actually had three other estimates and Precision Waterproofing was a last minute find on Angie's List. And it turned out to be the best. We would absolutely highly recommend him with no hesitation. More than extremely pleased!! "

Karen C on October 2025

Avatar for Ohio Basement Authority

Ohio Basement Authority

4.64(
384
)
•Approved Pro

Ohio Basement Authority

4.64(
384
)
•Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
17 years of experience

Established in 2009, Ohio Basement Authority stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Ohio, we bring our local expertise closer to you. OBA proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At OBA we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!

"1 / 2 We had a mixed, at best, experience with Ohio Basement Authority. Our project was a complete finishing of our basement. In November of 2024, when meeting with the sales point of contact, we had a professional experience. They took about two hours to come out, hear our wants/needs, give us additional ideas, take measurements and put together a quote. We ended up awarding OBA our project Dec 2024, and the project start date was April 2025. Before the project began, it became clear that multiple items from the initial agreement and draft did not make its way to the project team that would actually be handling it. As a result, we had to approve change orders that cost us several thousands of dollars that were not a part of our original quoted figure (but would have been if everything were accurately depicted from the get-go). We were given a verbal estimate of 8-10 weeks to have the project completed (i.e. mid-June/early July 2025), and encountered many delays throughout the"

Chris C on January 2026

Established in 2009, Ohio Basement Authority stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Ohio, we bring our local expertise closer to you. OBA proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At OBA we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!

"1 / 2 We had a mixed, at best, experience with Ohio Basement Authority. Our project was a complete finishing of our basement. In November of 2024, when meeting with the sales point of contact, we had a professional experience. They took about two hours to come out, hear our wants/needs, give us additional ideas, take measurements and put together a quote. We ended up awarding OBA our project Dec 2024, and the project start date was April 2025. Before the project began, it became clear that multiple items from the initial agreement and draft did not make its way to the project team that would actually be handling it. As a result, we had to approve change orders that cost us several thousands of dollars that were not a part of our original quoted figure (but would have been if everything were accurately depicted from the get-go). We were given a verbal estimate of 8-10 weeks to have the project completed (i.e. mid-June/early July 2025), and encountered many delays throughout the"

Chris C on January 2026

Avatar for DryTech Basement Waterproofing

DryTech Basement Waterproofing

4.92(
12
)
•Approved Pro

DryTech Basement Waterproofing

4.92(
12
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Welcome to DryTech Basement Waterproofing, we are excited to exceed your expectations! As experts, we will handle your needs with the high quality expertise that your home deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us now!

"Excellent customer service"

VICTORIA B on October 2023

Welcome to DryTech Basement Waterproofing, we are excited to exceed your expectations! As experts, we will handle your needs with the high quality expertise that your home deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us now!

"Excellent customer service"

VICTORIA B on October 2023

Avatar for America's Basement Contractor

America's Basement Contractor

4.70(
98
)
•Approved Pro

America's Basement Contractor

4.70(
98
)
•Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
18 years of experience

America's Basement Contractor is a family owned and operated independent company. Our business is focused on building and maintaining consultative relationships with every client, and providing them with customized solutions. We specialize in both exterior (positive side) and interior (negative side) residential and commercial waterproofing, as well as foundation stabilization, mold remediation, and crawl space encapsulation. ABC is not a "franchise". We strive to maintain a high construction standard on every project, and carefully choose all materials from trusted vendors. Our mission is to provide each client with the satisfaction of knowing that their project has been done right the first time at a reasonable cost. Headquartered in Greenville, Pennsylvania, our service area includes all of western Pennsylvania and north east Ohio. In addition to our regular hours, we are available by appointment. (877) 222-4023. Visit our website at americasbasementcontractor.com.

"Nicely done"

Jessica M on February 2023

America's Basement Contractor is a family owned and operated independent company. Our business is focused on building and maintaining consultative relationships with every client, and providing them with customized solutions. We specialize in both exterior (positive side) and interior (negative side) residential and commercial waterproofing, as well as foundation stabilization, mold remediation, and crawl space encapsulation. ABC is not a "franchise". We strive to maintain a high construction standard on every project, and carefully choose all materials from trusted vendors. Our mission is to provide each client with the satisfaction of knowing that their project has been done right the first time at a reasonable cost. Headquartered in Greenville, Pennsylvania, our service area includes all of western Pennsylvania and north east Ohio. In addition to our regular hours, we are available by appointment. (877) 222-4023. Visit our website at americasbasementcontractor.com.

"Nicely done"

Jessica M on February 2023

Avatar for Erie Home

Erie Home

4.55(
33
)
•Approved Pro

Erie Home

4.55(
33
)
•Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
50 years of experience

Erie Home Basement Solutions is a division of Erie Home?a national leader in home improvement since 1976. We have long been known for offering industry-leading solutions to our customers? most pressing needs, and our basement waterproofing, foundation repair, and crawl space services are no exception. When it comes to protecting your home against structural problems, why put the project in anything less than the most capable of hands? At Erie Home Basement Solutions, we provide the effective repair services and personalized service you need to have complete peace of mind.

"They did an excellent job on my basement they were professional and polite. They cleaned up after the job. They kept me informed as they did the work."

Jennifer S on August 2024

Erie Home Basement Solutions is a division of Erie Home?a national leader in home improvement since 1976. We have long been known for offering industry-leading solutions to our customers? most pressing needs, and our basement waterproofing, foundation repair, and crawl space services are no exception. When it comes to protecting your home against structural problems, why put the project in anything less than the most capable of hands? At Erie Home Basement Solutions, we provide the effective repair services and personalized service you need to have complete peace of mind.

"They did an excellent job on my basement they were professional and polite. They cleaned up after the job. They kept me informed as they did the work."

Jennifer S on August 2024

Erie Home

4.55(
33
)
•Approved Pro

Erie Home

4.55(
33
)
•Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
50 years of experience

Erie Home Basement Solutions is a division of Erie Home?a national leader in home improvement since 1976. We have long been known for offering industry-leading solutions to our customers? most pressing needs, and our basement waterproofing, foundation repair, and crawl space services are no exception. When it comes to protecting your home against structural problems, why put the project in anything less than the most capable of hands? At Erie Home Basement Solutions, we provide the effective repair services and personalized service you need to have complete peace of mind.

"They did an excellent job on my basement they were professional and polite. They cleaned up after the job. They kept me informed as they did the work."

Jennifer S on August 2024

Erie Home Basement Solutions is a division of Erie Home?a national leader in home improvement since 1976. We have long been known for offering industry-leading solutions to our customers? most pressing needs, and our basement waterproofing, foundation repair, and crawl space services are no exception. When it comes to protecting your home against structural problems, why put the project in anything less than the most capable of hands? At Erie Home Basement Solutions, we provide the effective repair services and personalized service you need to have complete peace of mind.

"They did an excellent job on my basement they were professional and polite. They cleaned up after the job. They kept me informed as they did the work."

Jennifer S on August 2024

Avatar for Ohio Basement Authority

Ohio Basement Authority

4.59(
312
)
•Approved Pro

Ohio Basement Authority

4.59(
312
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
27 years of experience

Ohio Basement Authority, A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, basement finishing / remodeling, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service throughout Cleveland, Columbus, Cincinnati, and Northern Kentucky. With fully trained technicians, industry-leading products, and nationally backed warranties, Ohio Basement Authority is here to restore your foundation or basement.

"5/5 she was great and real nice! She was very informative and knew her stuff."

Charisse H on August 2025

Ohio Basement Authority, A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, basement finishing / remodeling, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service throughout Cleveland, Columbus, Cincinnati, and Northern Kentucky. With fully trained technicians, industry-leading products, and nationally backed warranties, Ohio Basement Authority is here to restore your foundation or basement.

"5/5 she was great and real nice! She was very informative and knew her stuff."

Charisse H on August 2025

Avatar for Erie Home

Erie Home

4.50(
34
)
•Approved Pro

Erie Home

4.50(
34
)
•Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
50 years of experience

Erie Home Basement Solutions is a division of Erie Home?a national leader in home improvement since 1976. We have long been known for offering industry-leading solutions to our customers? most pressing needs, and our basement waterproofing, foundation repair, and crawl space services are no exception. When it comes to protecting your home against structural problems, why put the project in anything less than the most capable of hands? At Erie Home Basement Solutions, we provide the effective repair services and personalized service you need to have complete peace of mind.

"Salesman here 6 hrs. Quoted over $30lk got down to $25,500. Of course it was a good for today sign now price I had more estimates lined up but after 6 hrs and him acting like he was my husbands new bf and beer buddy he signed. Scheduled walkthrough- that was cancelled. Started work and had ?issues? that walk through would have found. Blew circuit breaker in workshop of basement, we now need an electrician bc even w replacing the circuit breaker w a new breaker it still turns off. Quotedi time length/ what they would be able to do by salesman- all wrong. Workers say it will be twice as long and what sales man said they could go around they can not. Workers are extremely polite and nice. Will update review when they are finished w work. Today 7/30 will be day 3. "

Que P on July 2025

Erie Home Basement Solutions is a division of Erie Home?a national leader in home improvement since 1976. We have long been known for offering industry-leading solutions to our customers? most pressing needs, and our basement waterproofing, foundation repair, and crawl space services are no exception. When it comes to protecting your home against structural problems, why put the project in anything less than the most capable of hands? At Erie Home Basement Solutions, we provide the effective repair services and personalized service you need to have complete peace of mind.

"Salesman here 6 hrs. Quoted over $30lk got down to $25,500. Of course it was a good for today sign now price I had more estimates lined up but after 6 hrs and him acting like he was my husbands new bf and beer buddy he signed. Scheduled walkthrough- that was cancelled. Started work and had ?issues? that walk through would have found. Blew circuit breaker in workshop of basement, we now need an electrician bc even w replacing the circuit breaker w a new breaker it still turns off. Quotedi time length/ what they would be able to do by salesman- all wrong. Workers say it will be twice as long and what sales man said they could go around they can not. Workers are extremely polite and nice. Will update review when they are finished w work. Today 7/30 will be day 3. "

Que P on July 2025

Avatar for USA Waterproofing & Foundation Services

USA Waterproofing & Foundation Services

4.47(
152
)
•Approved Pro

USA Waterproofing & Foundation Services

4.47(
152
)
•Approved Pro
Customers say: Quality work
31 years of experience
Free onsite estimate

USA Waterproofing has a single mission: Complete customer satisfaction! We strongly believe in giving our customers the most for their money. So, we work with only the highest quality materials and

"Everyone at USA Water Proofing was very friendly and professional. I was very pleased with the process. Jim and his crew worked as a team , finished 1 day early, and was very considerate. They protected everything with plastic, and cleaned up behind themselves. I’am very pleased with their work. I would highly recommend USA Water Proofing. Dan Drake "

Dan D on June 2025

USA Waterproofing has a single mission: Complete customer satisfaction! We strongly believe in giving our customers the most for their money. So, we work with only the highest quality materials and

"Everyone at USA Water Proofing was very friendly and professional. I was very pleased with the process. Jim and his crew worked as a team , finished 1 day early, and was very considerate. They protected everything with plastic, and cleaned up behind themselves. I’am very pleased with their work. I would highly recommend USA Water Proofing. Dan Drake "

Dan D on June 2025

...
Showing 1-10 of 223

Verified Reviews for Basement Waterproofing pros in Diamond, OH

*The Angi rating for Basement Waterproofing companies in Diamond, OH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Diamond, OH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on January 05, 2026

Basement Waterproofing questions, answered by experts

While it’s possible to seal a foundation yourself, it’s not recommended, as it’s a tricky and labor-intensive job. Foundation sealing is best left to the pros to save yourself time, remove the risk of doing it wrong, and keeping yourself safe. Call a foundation repair professional near you to see what the job will cost.

Homeowners insurance may cover basement flooding, but only if a covered peril causes it. For example, a burst pipe may be covered if the event was sudden and accidental, not caused by wear and tear or homeowner neglect. Flooding caused by extreme weather is only covered if you have a separate flood insurance policy.

Covering the dirt floor in your crawl space with a vapor barrier helps insulate the space and improve the air quality in your home. It protects your crawl space from pest infestations, excess moisture, and mold growth. It also makes the crawl space less dusty, which means there’s a lower chance of dust mites breeding and causing allergic reactions in your home.

Underfloor insulation alone will not cause moisture and mold, but improper installation can. Although the purpose is to seal any drafts, your subfloor still needs ventilation. If you seal the area too tightly and prevent all airflow, this can cause moisture to get trapped. This moisture eventually leads to mold and—if your floors are wood—rotting.

Finishing an unfinished basement adds the most value, with an average return of 70% or $22,400. A bathroom addition in the basement will provide an ROI of 75%, but the higher cost will leave you with a lower actual return of $9,000, on average. Finishing a basement and adding a kitchen, bathroom, and bedroom to rent the space will leave you with the highest possible ROI, as you could see well over 100% if you rent the space out long-term.

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.

See all articles

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"