Top-rated foundation, basement or crawlspace waterproofing / encapsulation pros.

Get matched with top foundation, basement or crawlspace waterproofing / encapsulation pros in Portsmouth, OH

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Foundation, basement or crawlspace waterproofing / encapsulation pros in Portsmouth

Avatar for Erie Home

Erie Home

1758 Dividend Dr
4.55(
33
)
Approved Pro

Erie Home

1758 Dividend Dr
4.55(
33
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
98 local quotes requested

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

1270 Hillsmith Dr.
4.60(
266
)
Approved Pro

Ohio Basement Authority

1270 Hillsmith Dr.
4.60(
266
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
226 local quotes requested

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

"Iran H and Chris M and Max W. These guys came out and did an amazing job in my crawlspace. They had to tear out work done just last summer by Stay Dry that had not done work at all ohio basement authority did work well above standards if you need work done please puck these guys"

Robbi y on June 2025

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

"Iran H and Chris M and Max W. These guys came out and did an amazing job in my crawlspace. They had to tear out work done just last summer by Stay Dry that had not done work at all ohio basement authority did work well above standards if you need work done please puck these guys"

Robbi y on June 2025


Avatar for Ohio Basement Authority

Ohio Basement Authority

2421 McGaw Rd
4.67(
292
)
Approved Pro

Ohio Basement Authority

2421 McGaw Rd
4.67(
292
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
379 local quotes requested

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

"Ryan and Bryan were great. Would recommend."

Daks H on August 2025

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

"Ryan and Bryan were great. Would recommend."

Daks H on August 2025


Avatar for Mid-State Basement Systems

Mid-State Basement Systems

2219 Westbrooke Drive
4.96(
12
)
Approved Pro

Mid-State Basement Systems

2219 Westbrooke Drive
4.96(
12
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
79 local quotes requested

Larry Janesky's Mid-State Basement Systems is dedicated to providing basement waterproofing, crawl space repair, and foundation repair services that cannot be beaten anywhere else. From our transferable, warrantied solutions to our exceptional customer service, you can have full confidence in our team from start to finish! We offer time-tested solutions for wet basements and musty crawl spaces, all installed with expertise. Mid-State Basement Systems aims to improve the lives of homeowners and businesses throughout Greater Columbus, OH, including Delaware, Westerville, Marysville, and nearby.

"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.******"

John R on October 2023

Larry Janesky's Mid-State Basement Systems is dedicated to providing basement waterproofing, crawl space repair, and foundation repair services that cannot be beaten anywhere else. From our transferable, warrantied solutions to our exceptional customer service, you can have full confidence in our team from start to finish! We offer time-tested solutions for wet basements and musty crawl spaces, all installed with expertise. Mid-State Basement Systems aims to improve the lives of homeowners and businesses throughout Greater Columbus, OH, including Delaware, Westerville, Marysville, and nearby.

"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.******"

John R on October 2023


Avatar for Alford Foundation and Crawl Space Repair

Alford Foundation and Crawl Space Repair

6316 MacCorkle Avenue SW
4.38(
81
)
Approved Pro

Alford Foundation and Crawl Space Repair

6316 MacCorkle Avenue SW
4.38(
81
)
Approved Pro
Customers say: Quality work
94 local quotes requested
62 years of experience

Alford Foundation and Crawl Space Repair provides reliable and superior waterproofing, crawl space repair, foundation repair, and concrete leveling services. We are dedicated to complete customer satisfaction with our patented products that can't be bought anywhere else! We have been in business since 1963 and are a 3rd generation family-owned business covering West Virginia and part of Ohio and Kentucky. Chris Alford, Co-Owner, is a third-generation business owner who grew up in and around the Alford Foundation and Crawl Space Repair business. Chris is deeply involved in the business to ensure the legacy of his family business which continues to grow. Chris worked his way through the ranks of the company from technician to sales to management and now oversees the day-to-day operations of the entire company. Larry Janesky, Co-Owner partnered with Chris in 2022, and has been the authority in the basement, crawl space and foundation industries since 1987.

"The tech who came walked me through all the damage seen-very thorough. "

Malyka K on June 2025

Alford Foundation and Crawl Space Repair provides reliable and superior waterproofing, crawl space repair, foundation repair, and concrete leveling services. We are dedicated to complete customer satisfaction with our patented products that can't be bought anywhere else! We have been in business since 1963 and are a 3rd generation family-owned business covering West Virginia and part of Ohio and Kentucky. Chris Alford, Co-Owner, is a third-generation business owner who grew up in and around the Alford Foundation and Crawl Space Repair business. Chris is deeply involved in the business to ensure the legacy of his family business which continues to grow. Chris worked his way through the ranks of the company from technician to sales to management and now oversees the day-to-day operations of the entire company. Larry Janesky, Co-Owner partnered with Chris in 2022, and has been the authority in the basement, crawl space and foundation industries since 1987.

"The tech who came walked me through all the damage seen-very thorough. "

Malyka K on June 2025


Avatar for Tri-State Crawlspace Repair and Building Efficiencies LLC.

Tri-State Crawlspace Repair and Building Efficiencies LLC.

205 Winesap Way
5.00(
2
)
Approved Pro

Tri-State Crawlspace Repair and Building Efficiencies LLC.

205 Winesap Way
5.00(
2
)
Approved Pro
1 years of experience
Free onsite estimate

We are 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.

We are 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.


Avatar for Alltek Environmental Services

Alltek Environmental Services

3011 Kathnor Lane
4.68(
60
)
Approved Pro

Alltek Environmental Services

3011 Kathnor Lane
4.68(
60
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
35 local quotes requested

Welcome to Alltek Environmental Services. We take pride in our reliability, great communication, integrity, and quality work. We are experts in mold testing and removal and always do our best to keep you educated on your project. Call today for a free demonstration and estimate. We look forward to earning your business!

"From the initial contact with Trenton Mayes, it was a very positive experience. He came to inspect, knew exactly what needed to be done and made the arrangements. The workers who performed the mold remediation were just as efficient and friendly as Trenton, great staff and great job. The product they use did not bother my asthma and I was able to return to my home."

Pat C on March 2025

Welcome to Alltek Environmental Services. We take pride in our reliability, great communication, integrity, and quality work. We are experts in mold testing and removal and always do our best to keep you educated on your project. Call today for a free demonstration and estimate. We look forward to earning your business!

"From the initial contact with Trenton Mayes, it was a very positive experience. He came to inspect, knew exactly what needed to be done and made the arrangements. The workers who performed the mold remediation were just as efficient and friendly as Trenton, great staff and great job. The product they use did not bother my asthma and I was able to return to my home."

Pat C on March 2025


Avatar for Reed's Spray Foam Insulation, Inc. (Belfry)

Reed's Spray Foam Insulation, Inc. (Belfry)

15 Coleman Road
4.59(
63
)
Approved Pro

Reed's Spray Foam Insulation, Inc. (Belfry)

15 Coleman Road
4.59(
63
)
Approved Pro
Customers say: True professional
134 local quotes requested
17 years of experience

Reed's Spray Foam Insulation, Inc. 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 customer?s interests and make their concerns the basis of our business. Please give us a call today! -When dialing Reed's Spray Foam please press 1 to get in touch with a Spray Foam representative. Thank you!

"Worth the expense to radically improve my crawl space as well as the air quality in my house."

Maureen S on November 2024

Reed's Spray Foam Insulation, Inc. 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 customer?s interests and make their concerns the basis of our business. Please give us a call today! -When dialing Reed's Spray Foam please press 1 to get in touch with a Spray Foam representative. Thank you!

"Worth the expense to radically improve my crawl space as well as the air quality in my house."

Maureen S on November 2024


K & M Contractors, LLP

3701 New Route 3
5.00(
2
)
Approved Pro

K & M Contractors, LLP

3701 New Route 3
5.00(
2
)
Approved Pro
Free onsite estimate

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

"Matt, Tim Tom and the boys did a fantastic job they went above and beyond. I am so pleased with the job they did that. I am going to hire them to do the renovation of the rest of my house. Matt was on time very courteous and let me know exactly what they were doing And got the job done in a very reasonable time. I highly recommend him and his team thank you, Matt."

David A on August 2025

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

"Matt, Tim Tom and the boys did a fantastic job they went above and beyond. I am so pleased with the job they did that. I am going to hire them to do the renovation of the rest of my house. Matt was on time very courteous and let me know exactly what they were doing And got the job done in a very reasonable time. I highly recommend him and his team thank you, Matt."

David A on August 2025


Avatar for Ohio Basement Authority

Ohio Basement Authority

2421 Mc Gaw Road
4.77(
524
)
Approved Pro

Ohio Basement Authority

2421 Mc Gaw Road
4.77(
524
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
440 local quotes requested

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!

"The sales rep. was very knowledgeable, and offered additional services that others had not. The price was fair, lower than others, the installers were excellent! They were efficient, skilled, and left the basement with no mess. They cared about the quality of their work and it showed. I would highly recommend them."

Joe F on August 2025

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!

"The sales rep. was very knowledgeable, and offered additional services that others had not. The price was fair, lower than others, the installers were excellent! They were efficient, skilled, and left the basement with no mess. They cared about the quality of their work and it showed. I would highly recommend them."

Joe F on August 2025

...
Showing 1-10 of 121
FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Portsmouth, OH

The most affordable way to waterproof your basement is with interior methods like waterproof paint, costing between $1 and $8 per square foot, or silicate concrete sealers priced at $4 to $6 per square foot. However, these solutions are only suitable for certain issues. If your basement moisture is due to more serious problems like a cracked foundation, you'll need more extensive (and costly) repairs.

Absolutely! Waterproofing your basement is a smart investment that can increase your home's value. By keeping your basement dry and free of moisture problems, you protect your home's structural integrity and make it more appealing to potential buyers. Plus, taking proactive measures now can prevent costly water damage repairs down the line.

The time required to waterproof a basement depends on the selected method. Some approaches to interior waterproofing, like paint or sealant, can be completed within a day. Installing new drains or weeping tiles will need at least two to three days of labor. Any forms of exterior waterproofing that require you to excavate land will require an additional three days of work to prepare the ground.

Yes, basement waterproofing can significantly increase your home's value. A dry, leak-free basement is a strong selling point for potential buyers, enhancing your property's desirability and market price. Investing in professional waterproofing not only protects your home's structural integrity but also ensures a healthier living environment by preventing mold and mildew growth.

Waterproofing both the interior and exterior of your basement offers the best protection against moisture. Exterior waterproofing stops water from penetrating your foundation, while interior methods manage any moisture that does enter. If you must choose one, exterior waterproofing is generally more effective, as it prevents water from reaching your home's interior in the first place.

The Portsmouth, OH homeowners’ guide to foundation, basement or crawlspace waterproofing / encapsulations

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