Top-rated structural engineers.

Get matched with top structural engineers in Sullivan, OH

Enter your ZIP and get matched with up to 5 pros

Need a pro for your structural engineering project in Sullivan, OH?

Select your specific project to find the pro for you.

Find Structural engineers in Sullivan

Avatar for Ohio Basement Authority

Ohio Basement Authority

4.44(
448
)
•Approved Pro

Ohio Basement Authority

4.44(
448
)
•Approved Pro
Customers say: Quality work
34 local quotes requested
16 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!

"I am not pleased with the service I received! They damaged my waterline and stated someone would be out to fix it. It's been 9 months and no one will return my calls nor have they come to fix what they damaged! They ruined my lawn and never came back to replace the soil they dug up! They ruined my basement floor and I had to replace my entire floor! They said they would be out to test the sump pump and drains that were installed, again, it's been 9 months and no one has followed up with me! I'm really concerned that the lifetime warranty they say I have even exists!"

Yolanda R on September 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!

"I am not pleased with the service I received! They damaged my waterline and stated someone would be out to fix it. It's been 9 months and no one will return my calls nor have they come to fix what they damaged! They ruined my lawn and never came back to replace the soil they dug up! They ruined my basement floor and I had to replace my entire floor! They said they would be out to test the sump pump and drains that were installed, again, it's been 9 months and no one has followed up with me! I'm really concerned that the lifetime warranty they say I have even exists!"

Yolanda R on September 2025

Avatar for Betts Structural Engineering LLC

Betts Structural Engineering LLC

4.94(
18
)
•Approved Pro

Betts Structural Engineering LLC

4.94(
18
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
178 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

Avatar for The Basement Doctor

The Basement Doctor

4.75(
344
)

The Basement Doctor

4.75(
344
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Since 1987 The Basement Doctor has been providing expert wet basement waterproofing, foundation repair, crawl space vapor barrier, basement finishing, and mold and spray foam insulation services. We give free inspections and detailed written estimates to homeowners in the Columbus and central Ohio area. Our solutions have expanded to include back-up standby electrical generators. Selecting the right contractor to let into your home is a very important decision. The Basement Doctor respects you and your home – expertly performing the contracted work, being punctual, employing a drug free workforce, and skilled experienced installers. We only use ethical sales practices and honor warranties without hassle. All of our staff follows clear rules of respect, responsibility and integrity. We treat you the way we'd want our own families treated. Financing is available, lender qualifications apply. Additional services: mold clean-up & prevention, basement finishing, dehumidification & battery back-up sump pumps and emergency response to flooded basements.

"Jacob is the best in the business. It’s very comforting to know I have a reliable contact for whenever I’m having any basement/water issues or any questions. He also has a lot of references for other projects. 10/10 recommend. Thanks again Jacob!"

Cole W on April 2025

Since 1987 The Basement Doctor has been providing expert wet basement waterproofing, foundation repair, crawl space vapor barrier, basement finishing, and mold and spray foam insulation services. We give free inspections and detailed written estimates to homeowners in the Columbus and central Ohio area. Our solutions have expanded to include back-up standby electrical generators. Selecting the right contractor to let into your home is a very important decision. The Basement Doctor respects you and your home – expertly performing the contracted work, being punctual, employing a drug free workforce, and skilled experienced installers. We only use ethical sales practices and honor warranties without hassle. All of our staff follows clear rules of respect, responsibility and integrity. We treat you the way we'd want our own families treated. Financing is available, lender qualifications apply. Additional services: mold clean-up & prevention, basement finishing, dehumidification & battery back-up sump pumps and emergency response to flooded basements.

"Jacob is the best in the business. It’s very comforting to know I have a reliable contact for whenever I’m having any basement/water issues or any questions. He also has a lot of references for other projects. 10/10 recommend. Thanks again Jacob!"

Cole W on April 2025

EHM

4.50(
16
)

EHM

4.50(
16
)
Customers say: Quality work
71 years of experience

EHM is a structural moving and elevating company that also specializes in foundation repair and replacement. We have been working in the Midwest since the Great Floods of 1993. We specialize in severely comprised foundation issues. We can elevate, level, pier or replace a wall or your entire foundation. We do not do mudjacking, waterproofing or minor crack repair.

"I did not get the service that we originally talked about I am very unhappy"

Donna S on August 2021

EHM is a structural moving and elevating company that also specializes in foundation repair and replacement. We have been working in the Midwest since the Great Floods of 1993. We specialize in severely comprised foundation issues. We can elevate, level, pier or replace a wall or your entire foundation. We do not do mudjacking, waterproofing or minor crack repair.

"I did not get the service that we originally talked about I am very unhappy"

Donna S on August 2021

Avatar for Acculevel Inc

Acculevel Inc

4.66(
181
)

Acculevel Inc

4.66(
181
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Acculevel is your foundation repair expert, serving Indiana, Illinois, Kentucky, and Ohio and been in business since 1996. Most of our repairs come with a life of the structure 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-- possibly the most valuable investment you'll ever make. A dry home is a healthy home. Acculevel is committed to providing the most technologically advanced repairs to help keep your home dry and on a safe foundation. A strong foundation protects your home's structure, lowers utility bills and maintains the value of your property. Check our pictures for the signs & symptoms of foundation & water damage, and then call Acculevel for your free visual inspection. 1-866-669-3349

"STAY AWAY FROM THIS COMPANY. They took my 1st half deposit and then vanished. I have called multiple times. Spoke with someone once and they promised a call back. Never did. Emailed and no response. This was over 4 months ago. Nothing. They stole my money. Sales guy was John Mullikin. Here's their class-act response by chat. The best response I've had yet. "Conversation closed by Erika"."

Jeff N on September 2025

Acculevel is your foundation repair expert, serving Indiana, Illinois, Kentucky, and Ohio and been in business since 1996. Most of our repairs come with a life of the structure 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-- possibly the most valuable investment you'll ever make. A dry home is a healthy home. Acculevel is committed to providing the most technologically advanced repairs to help keep your home dry and on a safe foundation. A strong foundation protects your home's structure, lowers utility bills and maintains the value of your property. Check our pictures for the signs & symptoms of foundation & water damage, and then call Acculevel for your free visual inspection. 1-866-669-3349

"STAY AWAY FROM THIS COMPANY. They took my 1st half deposit and then vanished. I have called multiple times. Spoke with someone once and they promised a call back. Never did. Emailed and no response. This was over 4 months ago. Nothing. They stole my money. Sales guy was John Mullikin. Here's their class-act response by chat. The best response I've had yet. "Conversation closed by Erika"."

Jeff N on September 2025

Structural Engineering questions, answered by experts

Most load-bearing walls are exterior, though they can also be interior.

According to the Earthquake Country Alliance—a public and private alliance in California that works to improve earthquake and tsunami readiness—reports that unreinforced masonry, such as stone, bricks, and hollow clay tiles, is more susceptible to earthquake damage. The mortar between bricks isn’t as stable as other building materials and methods.

While concrete walls do not need to "breathe" in the traditional sense of the word, they do require waterproofing and dehumidifying methods, particularly in basements below the water table. Concrete both contains moisture from its initial installation and can absorb water when exposed. Ensuring proper basement ventilation , installing a vapor barrier, and controlling water exposure are all important tasks.

You need to hire a structural engineer when building or modifying any component with a structural load in your home. Common situations where you would need a structural engineer include home inspections when buying or selling a home, investigating possible issues with your foundation, beams, load-bearing walls, or chimneys, breaking ground on a new home or structure on your property, and renovating an old part of your home that could threaten any structural integrity. Home additions and bump-outs also require an engineer.

The standard thickness for an LVL beam is between 1.75 inches and 7 inches. However, you can order LVL beams in non-standard sizes as well. When you work with a contractor, they can source beams that are the appropriate size for your project for you after assessing your blueprints.

The Sullivan, OH homeowners’ guide to structural engineering 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"