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"The engineer did a review of my property save me money in a long run."

Mel D on March 2025

We are pleased to offer structural engineering services to Michigan, Ohio, and Indiana. We have over twenty years of experience in the field and can help provide a reliable, reasonable solution to your structural engineering concerns.

"The engineer did a review of my property save me money in a long run."

Mel D on March 2025


Robert Cowles PE

5.00(
1
)
Approved Pro

Robert Cowles PE

5.00(
1
)
Approved Pro
21 years of experience

Robert Cowles PE 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.

"Robert was very easy to communicate with and was quick to respond. He was timely with returning the report necessary as well."

ASHLEY V on February 2025

Robert Cowles PE 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.

"Robert was very easy to communicate with and was quick to respond. He was timely with returning the report necessary as well."

ASHLEY V on February 2025


Milestone Inspections LLC

5.00(
102
)

Milestone Inspections LLC

5.00(
102
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Fulll-service home inspection, testing, and consulting company built around the efforts of a father and son Civil Engineer team. We have been performing inspections since 1990. We are certified by the American Society of Home Inspectors (ASHI) and hold a Builder license. We perform very thorough inspections and provide detailed Internet-based reports (visit our website to see our report). Our full inspections include a free termite inspection and a 400-page reference manual. In addition, we are fully insured carrying Errors & Omissions and General Liability insurance.

"Exactly what we wanted.Detailed description of all potential problems"

Ron C on July 2020

Fulll-service home inspection, testing, and consulting company built around the efforts of a father and son Civil Engineer team. We have been performing inspections since 1990. We are certified by the American Society of Home Inspectors (ASHI) and hold a Builder license. We perform very thorough inspections and provide detailed Internet-based reports (visit our website to see our report). Our full inspections include a free termite inspection and a 400-page reference manual. In addition, we are fully insured carrying Errors & Omissions and General Liability insurance.

"Exactly what we wanted.Detailed description of all potential problems"

Ron C on July 2020


Avatar for Guardian Tree Experts

Guardian Tree Experts

4.95(
39
)

Guardian Tree Experts

4.95(
39
)
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Fueled by a passion for trees, we strive to provide progressive tree care services to clientele in southeastern Michigan who care about the preservation of their trees. Our ultimate goal is to enhance and protect the beauty, health, and stability of our clients’ trees and shrubs. In pursuit of this mission, we are especially committed to scientific analysis, focused care, professional and safe service, exceptional client relations, and community outreach and education.

"After having used another local tree service in the Ann Arbor area, I called Guardian for their opinion and pricing. Garret visited us and took his time explaining issues with our pear trees, one of which we decided to have cut down, as well as the pruning required on our Red Maple, Service Berry, Magnolia, and Willow Bushes. The crew that came to do the work was excellent. Garret had ensured they were well-briefed on the work, and they efficiently, and quickly removed the 30+ foot Pear that was in our courtyard. They carefully cleaned up all the areas that they worked in and completed all work within a day. We won't hesitate to contact them for future work and would highly recommend them."

Michael D on November 2022

Fueled by a passion for trees, we strive to provide progressive tree care services to clientele in southeastern Michigan who care about the preservation of their trees. Our ultimate goal is to enhance and protect the beauty, health, and stability of our clients’ trees and shrubs. In pursuit of this mission, we are especially committed to scientific analysis, focused care, professional and safe service, exceptional client relations, and community outreach and education.

"After having used another local tree service in the Ann Arbor area, I called Guardian for their opinion and pricing. Garret visited us and took his time explaining issues with our pear trees, one of which we decided to have cut down, as well as the pruning required on our Red Maple, Service Berry, Magnolia, and Willow Bushes. The crew that came to do the work was excellent. Garret had ensured they were well-briefed on the work, and they efficiently, and quickly removed the 30+ foot Pear that was in our courtyard. They carefully cleaned up all the areas that they worked in and completed all work within a day. We won't hesitate to contact them for future work and would highly recommend them."

Michael D on November 2022


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


Avatar for Ayers Basement Systems

Ayers Basement Systems

3.91(
66
)

Ayers Basement Systems

3.91(
66
)
Customers say: Super punctual
44 years of experience

At Ayers Basement Systems, we’re your partners in creating a safer, more secure home for your family. With over 40 years of experience and a team of experts, we’ve had the pleasure of helping homeowners across Michigan and Indiana with tailored solutions for basement waterproofing, foundation repair, crawl space repair, and concrete repair. Serving areas from Lansing to Grand Rapids, Traverse City to Kalamazoo, Detroit, South Bend, and beyond, we recognize that each home comes with its own set of challenges. As a locally owned, family-operated business, we are deeply committed to providing professional, trustworthy, and affordable solutions to help you protect what matters most. Let’s take the first step in making your home safer together. Schedule your free estimate and inspection with us today!

"Biggest scam I e ever experience. The charged me 40k after interest to fix my sagging foundation, and fix my flooding crawl space. After an impressive sales pitch I signed the contract and had them do the ?work?. dusing the sales pitch they told me they would level my floors, and install equipment to prevent my crawl space from flooding every year. They explained this will be a multiple day project and I would have to rip up my floor to give the access to the foundation. So I ripped up my floor, and had them come in to do the work. They were in and out in about 4 hours, and left me with still sagging floors. after Getting in the crawl space myself I discovered that multiple of the jacks that they installed to lift the foundation, weren?t even touching the joists. And to this day, my crawl space still floods with a foot of water every spring. I contacted Ayer?s to see what can be done, they offered no compensation, and no help. If you?re planning to hire Ayer?s, dont"

daniel l on September 2025

At Ayers Basement Systems, we’re your partners in creating a safer, more secure home for your family. With over 40 years of experience and a team of experts, we’ve had the pleasure of helping homeowners across Michigan and Indiana with tailored solutions for basement waterproofing, foundation repair, crawl space repair, and concrete repair. Serving areas from Lansing to Grand Rapids, Traverse City to Kalamazoo, Detroit, South Bend, and beyond, we recognize that each home comes with its own set of challenges. As a locally owned, family-operated business, we are deeply committed to providing professional, trustworthy, and affordable solutions to help you protect what matters most. Let’s take the first step in making your home safer together. Schedule your free estimate and inspection with us today!

"Biggest scam I e ever experience. The charged me 40k after interest to fix my sagging foundation, and fix my flooding crawl space. After an impressive sales pitch I signed the contract and had them do the ?work?. dusing the sales pitch they told me they would level my floors, and install equipment to prevent my crawl space from flooding every year. They explained this will be a multiple day project and I would have to rip up my floor to give the access to the foundation. So I ripped up my floor, and had them come in to do the work. They were in and out in about 4 hours, and left me with still sagging floors. after Getting in the crawl space myself I discovered that multiple of the jacks that they installed to lift the foundation, weren?t even touching the joists. And to this day, my crawl space still floods with a foot of water every spring. I contacted Ayer?s to see what can be done, they offered no compensation, and no help. If you?re planning to hire Ayer?s, dont"

daniel l on September 2025



Blue Sky Power Wash

4.83(
6
)

Blue Sky Power Wash

4.83(
6
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Power washing and property maintenance company serving the private and commercial sectors. Since 1988 over 2800 projects completed. registered and insured. Senior and Veteran discounts.586-293-5674 [email protected]

Power washing and property maintenance company serving the private and commercial sectors. Since 1988 over 2800 projects completed. registered and insured. Senior and Veteran discounts.586-293-5674 [email protected]


Avatar for EHM

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


LOPEZ ENGINEERING, INC.

4.86(
7
)

LOPEZ ENGINEERING, INC.

4.86(
7
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a small structural consulting engineering firm founded by Alfred Lopez in 1971. For many years, Al worked alone and developed a strong reputation for someone who could make things work. Our design philosophy is that there is a solution to every problem. This reputation has been passed on by Al to the rest of the Lopez Engineering Design team. Lopez Engineering relies on a "word of mouth" campaign instead of formal advertising thus keeping overhead to a minimum.

"It went really well. They did what I wanted them to do."

Andrew H on February 2021

We are a small structural consulting engineering firm founded by Alfred Lopez in 1971. For many years, Al worked alone and developed a strong reputation for someone who could make things work. Our design philosophy is that there is a solution to every problem. This reputation has been passed on by Al to the rest of the Lopez Engineering Design team. Lopez Engineering relies on a "word of mouth" campaign instead of formal advertising thus keeping overhead to a minimum.

"It went really well. They did what I wanted them to do."

Andrew H on February 2021

Showing 1-10 of 39
Structural Engineering questions, answered by experts

You should pick steel for your new support beam for a few reasons. While steel is more expensive than other materials, such as laminated veneer lumber or glulam, it offers the following benefits:

  • Fire-resistant

  • Unaffected by pests

  • Longer-lasting

  • Stronger against water damage (when galvanized against rust)

Their expertise in identifying potential problems early and implementing durable solutions safeguards your home’s integrity.

The National Association of Home Builders requires repair of any foundation crack of more than one quarter of an inch, although local regulations may vary. In general, any visible crack that is growing in size, allowing water through, or that you have just noticed, is a good reason to call a structural engineer. Cracks can be a sign of a sinking foundation, so an inspection is a good idea for your peace of mind.

Accurate measurements, sturdy materials, and seamless integration with other structures.

Structural engineers typically charge between $100 and $250 per hour, but many jobs won’t be based on a per-hour fee. Instead, the structural engineer will offer a flat rate for the inspection and structural calculations. The flat rate for a structural engineer costs an average of around $550, but you could see prices ranging from $300 to $800, depending on the complexity of your project and how easy it is to access certain parts of your home for the inspection.

The South Lyon, MI homeowners’ guide to structural engineering services

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

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