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Foundation, basement or crawlspace waterproofing / encapsulation pros in Portsmouth

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
326 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(
289
)
Approved Pro
Ohio Basement Authority
2421 McGaw Rd
4.67(
289
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
423 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.

"Needed a waterproofing company to waterproof my damaged basement, excellent workmanship, exceeded my expectation. The workers were very polite and knowledgeable. Completed the job in one day. Removed concrete flooring, install indoor water gutters, drilled several weep holes, removed old sump basin and sump pumps, installed new equipment, they also install a rubber barrier to guide water to the gutters and placed new concrete where needed. They removed all debris, the basement looked cleaner than before they started. I was impressed with the quality and value of Ohio Basement Authorities service. I would highly recommend this company. Good price and excellent service."

Joe F on May 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.

"Needed a waterproofing company to waterproof my damaged basement, excellent workmanship, exceeded my expectation. The workers were very polite and knowledgeable. Completed the job in one day. Removed concrete flooring, install indoor water gutters, drilled several weep holes, removed old sump basin and sump pumps, installed new equipment, they also install a rubber barrier to guide water to the gutters and placed new concrete where needed. They removed all debris, the basement looked cleaner than before they started. I was impressed with the quality and value of Ohio Basement Authorities service. I would highly recommend this company. Good price and excellent service."

Joe F on May 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
193 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


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
66 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 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
33 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 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
31 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 Acculevel, Inc. - Ohio
Acculevel, Inc. - Ohio
8233 W. State Rd 26
4.51(
163
)
Approved Pro
Acculevel, Inc. - Ohio
8233 W. State Rd 26
4.51(
163
)
Approved Pro
Customers say: Quality work
142 local quotes requested
29 years of experience

Acculevel is your foundation repair expert, serving Indiana, Illinois, Michigan, Kentucky, and Ohio with over 20 years of experience. Our repairs come with a lifetime warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- the most valuable investment you'll ever make.

"done a good job stayed late to finish"

carl c on October 2023

Acculevel is your foundation repair expert, serving Indiana, Illinois, Michigan, Kentucky, and Ohio with over 20 years of experience. Our repairs come with a lifetime warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- the most valuable investment you'll ever make.

"done a good job stayed late to finish"

carl c on October 2023


Avatar for Ohio Basement Authority
Ohio Basement Authority
2421 Mc Gaw Road
4.76(
523
)
Approved Pro
Ohio Basement Authority
2421 Mc Gaw Road
4.76(
523
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
441 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!

"Amazing. Dakota did a wonderful assessment And was very thorough and informative. Nick Fry and his partner Slade R did amazing work and had excellent communication. It was scheduled and done in a timely manner. Would use again and highly recommend."

Karen R on May 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!

"Amazing. Dakota did a wonderful assessment And was very thorough and informative. Nick Fry and his partner Slade R did amazing work and had excellent communication. It was scheduled and done in a timely manner. Would use again and highly recommend."

Karen R on May 2025


Avatar for Reed's Home Solutions
Reed's Home Solutions
2251 Sycamore Mtn
5.00(
7
)
Approved Pro
Reed's Home Solutions
2251 Sycamore Mtn
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
519 local quotes requested

Reed's, Inc. provides healthy home solutions, such as sprayfoam and all other types of insulation, as well as basement and crawlspace waterproofing. Our solutions will make your home healthier, more comfortable, and more energy-efficient. We have been an owner-operated business for over 30 years. Reed's 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!

"They were spectacular, outstanding. They were courteous and clean. I can't say enough good things about them. I would highly recommend them."

Holly B on June 2021

Reed's, Inc. provides healthy home solutions, such as sprayfoam and all other types of insulation, as well as basement and crawlspace waterproofing. Our solutions will make your home healthier, more comfortable, and more energy-efficient. We have been an owner-operated business for over 30 years. Reed's 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!

"They were spectacular, outstanding. They were courteous and clean. I can't say enough good things about them. I would highly recommend them."

Holly B on June 2021


Avatar for Betts Structural Engineering LLC
Betts Structural Engineering LLC
304 Long St
4.79(
24
)
Approved Pro
Betts Structural Engineering LLC
304 Long St
4.79(
24
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
1617 local quotes requested

Construction company and consulting engineering firm for residential, industrial, commercial, institutional, and retail clients.

"Had Betts Structural Engineering come and look at the foundation of a house we were in contract on. Josh came out and was professional and informative. He informed us the foundation was failing and explained what needed to be done. He throughly explained everything and told us how we could do it ourselves for much cheaper than a contractor could do it. In the end he saved us from a long and expensive process if we proceeded with the house."

Joyce L on January 2023

Construction company and consulting engineering firm for residential, industrial, commercial, institutional, and retail clients.

"Had Betts Structural Engineering come and look at the foundation of a house we were in contract on. Josh came out and was professional and informative. He informed us the foundation was failing and explained what needed to be done. He throughly explained everything and told us how we could do it ourselves for much cheaper than a contractor could do it. In the end he saved us from a long and expensive process if we proceeded with the house."

Joyce L on January 2023

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FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Portsmouth, OH

Standing water in your crawl space won’t disappear on its own. Keep the drainage clear, ensure the vents are working properly, and run a dehumidifier to control moisture levels. If dampness lingers, mold, wood rot, and foundation cracks can follow. Act quickly and call a pro to protect your home’s structure and indoor air quality.

Disinfecting a crawl space requires a methodical approach. First, clear all debris and remove old liners and insulation to eliminate contaminants. Then, apply a strong bleach solution or borate spray to eradicate mold spores and mildew. Ensuring complete surface coverage and allowing ample drying time establishes a sanitary environment and prevents future infestations.

A crawl space serves vital functions by providing access to essential systems, including electrical wiring, plumbing, and HVAC ducts. It also offers a buffer zone that aids in moisture control and protects underlying structural components. 

Yes, crawl space encapsulation is a worthwhile investment in protecting your home. Crawl space encapsulation locks out moisture, controls humidity, and blocks pests and harmful pollutants like radon gas. Those benefits boost indoor air quality and protect beams, joists, and insulation, giving your home long‑term structural stability and safeguarding your family’s health.

Prevention is the best way to keep water out of your crawl space. A dehumidifier and sump pump can help control moisture levels, but grading the landscape to redirect water away from the foundation is most important. Additionally, seal foundation cracks and install reliable drainage systems such as a French drain to maintain a consistently dry environment.

Yes, repairing your crawl space foundation is critical, regardless of how minor the issue may seem. Foundation problems arise from enduring moisture, water intrusion, and unstable soil, which can lead to significant structural damage if left unaddressed. Hiring a licensed structural engineer or foundation repair professional guarantees your home’s long-term stability and safety while preventing escalating repair costs.

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.
clean crawlspace with insulation and wood beams under house
Jun 15, 2025
Jun 15, 2025
Budget for crawl space repair costs based on factors such as square footage, repair type, accessibility, cleaning, maintenance, labor, and more.
professional repairing the foundation of a home
Apr 24, 2025
Apr 24, 2025
Budget for foundation repair costs based on factors such as the extent of damage, house size, materials, labor, problem type, and more.
Empty basement with new concrete floor and white walls
Apr 21, 2025
Apr 21, 2025
If you’re planning to install a new foundation, check out budgeting and cost factors to consider.
raising the foundation of a home with a house lift
Apr 21, 2025
Apr 21, 2025
Learn how much it costs to raise a house. Explore how factors like the house size, structure, age, landscaping, and labor rates affect the price.
A man digging out a french drain
Mar 31, 2025
Mar 31, 2025
Budget for French drain costs based on factors including square footage, accessibility, labor, location, landscape repairs, and more.
crawl space prepared for an encapsultion
Mar 20, 2025
Mar 20, 2025
Use this guide to budget for crawl space encapsulation cost factors such as crawl space size, prep, maintenance tasks, labor, and more.
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