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TRUSTED BY SLEEPY HOLLOW, IL HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon31
    Verified structural engineering services reviews

Verified Reviews for Structural Engineering pros in Sleepy Hollow, IL

*The Angi rating for Structural Engineering companies in Sleepy Hollow, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Structural Engineering needs.

*The HomeAdvisor rating for Structural Engineering companies in Sleepy Hollow, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Structural Engineering needs.

Last update on December 05, 2025

Find Structural engineers in Sleepy Hollow

Avatar for Structural Design Corp

Structural Design Corp

5.00(
21
)
•Approved Pro

Structural Design Corp

5.00(
21
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
69 local quotes requested

Structural Design Corporation (SDC) is a licensed consulting engineering firm located in Libertyville, Illinois. We have been providing engineering & inspection services since 1979. We are a licensed design firm in the state of Illinois.

"Excellent honest work!"

Nick O on August 2024

Structural Design Corporation (SDC) is a licensed consulting engineering firm located in Libertyville, Illinois. We have been providing engineering & inspection services since 1979. We are a licensed design firm in the state of Illinois.

"Excellent honest work!"

Nick O on August 2024

Avatar for Great Lakes Builders Inc

Great Lakes Builders Inc

4.95(
125
)
•Approved Pro

Great Lakes Builders Inc

4.95(
125
)
•Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
59 local quotes requested

SUPER SERVICE AWARD WINNER 12 CONSECUTIVE YEARS. Great Lakes Builders is a structural contractor that specializes in protecting the value of existing properties through its “Structural Repair and Remediation” services and in adding value to existing properties through its “Structural Alterations” services. Great Lakes Builders has been providing "Structural Solutions" for residential, commercial and industrial properties since 1949. Great Lakes Builders provides Structural Engineering referrals to Homeowners and Building owners that require structural engineering services. Note: The phone numbers listed for Great Lakes Builders on Angi are all office landline phones so do not text us on these numbers.

"Their crew showed up on time, worked steadily on our job, explained what they were doing, got the job done on time, and cleaned up after themselves. Polite and professional the whole way. This is the second time we've used Great Lakes and would happily use them again, as well as recommend them to others."

Scott B on September 2025

SUPER SERVICE AWARD WINNER 12 CONSECUTIVE YEARS. Great Lakes Builders is a structural contractor that specializes in protecting the value of existing properties through its “Structural Repair and Remediation” services and in adding value to existing properties through its “Structural Alterations” services. Great Lakes Builders has been providing "Structural Solutions" for residential, commercial and industrial properties since 1949. Great Lakes Builders provides Structural Engineering referrals to Homeowners and Building owners that require structural engineering services. Note: The phone numbers listed for Great Lakes Builders on Angi are all office landline phones so do not text us on these numbers.

"Their crew showed up on time, worked steadily on our job, explained what they were doing, got the job done on time, and cleaned up after themselves. Polite and professional the whole way. This is the second time we've used Great Lakes and would happily use them again, as well as recommend them to others."

Scott B on September 2025

Professional for Solving Projects (PSP)

No reviews yet

Professional for Solving Projects (PSP)

No reviews yet

We are Expert in Providing Services for Aerospace, Industrial, Mechanical, Structural, and Biomechanical Engineering Students. We provide the students full assistance in their Final Year Projects, Assignments, Project Lab as well as tutoring for most of the Engineering subjects.

We are Expert in Providing Services for Aerospace, Industrial, Mechanical, Structural, and Biomechanical Engineering Students. We provide the students full assistance in their Final Year Projects, Assignments, Project Lab as well as tutoring for most of the Engineering subjects.

WT Group

No reviews yet

WT Group

No reviews yet
54 years of experience

WT is a full service engineering design company. We have been a family owned, local business, celebrating 50 year Anniversary in 2021. WT is a one-stop shop for your engineering and design needs. Whether you need a quick survey for a fence, engineering drawings for a major renovation, flooding problems, or even a project managment team to help you manage and navigate your project, WT has a solution for you. There are a lot of decisions in any construction project. With renovations, surprises are nearly synonymous. Our goal is to bring you confidence, and make sure you sleep well at night knowing your project is on track and on budget.

WT is a full service engineering design company. We have been a family owned, local business, celebrating 50 year Anniversary in 2021. WT is a one-stop shop for your engineering and design needs. Whether you need a quick survey for a fence, engineering drawings for a major renovation, flooding problems, or even a project managment team to help you manage and navigate your project, WT has a solution for you. There are a lot of decisions in any construction project. With renovations, surprises are nearly synonymous. Our goal is to bring you confidence, and make sure you sleep well at night knowing your project is on track and on budget.

Engikeering, LLC

4.60(
10
)

Engikeering, LLC

4.60(
10
)
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Engikeering provides excellent structural engineering solutions. Engikeering will provide a licensed structural engineer to deliver an accurate assessment of the potential concern and create structural solutions. If you are removing walls, adding openings in walls, adding living space, placing an additional story on a structure or other actions that may impact the structural components of an existing building, it is advisable to utilize a structural engineer to understand the full impact of the renovation. Engikeering will provide full structural design and detailing for new structures, to completely and economically meet all of the applicable building code requirements. Engikeering can help identify the cause, assess the severity of the situation, and provide any needed design to remediate the areas of concern: Foundation cracks, interior cracking and/or framing movement, natural disaster damage, sagging floors or bowing walls, rot and/or insect deterioration, undersized, strained or damaged elements, roof failure or building collapse.

"Beware of this company. I had Jonathan come out to provide me with a verbal report on the condition of some termite damage in my basement. With each visit, he wanted more drywall removed and exacerbated the perceived severity of the situation. I soon realized that he was more problem focused than solutions oriented. I decided that I would prefer to look elsewhere for services to mitigate my issue, and effectively terminated our contract. Jonathan, without my knowledge and with what I perceive to be malicious intent, then sent his partially complete report to the Village reporting my property. Half the report was guesswork as to the extent of the damage as they were about areas that he was not even able to visually inspect. The village, after reading the report, became spooked and are asking for more than I and my professionals agree is necessary to mitigate the safety risk. Needless to say, I will never again use his services and I strongly advise that others be wary as well."

Patricia P on July 2024

Engikeering provides excellent structural engineering solutions. Engikeering will provide a licensed structural engineer to deliver an accurate assessment of the potential concern and create structural solutions. If you are removing walls, adding openings in walls, adding living space, placing an additional story on a structure or other actions that may impact the structural components of an existing building, it is advisable to utilize a structural engineer to understand the full impact of the renovation. Engikeering will provide full structural design and detailing for new structures, to completely and economically meet all of the applicable building code requirements. Engikeering can help identify the cause, assess the severity of the situation, and provide any needed design to remediate the areas of concern: Foundation cracks, interior cracking and/or framing movement, natural disaster damage, sagging floors or bowing walls, rot and/or insect deterioration, undersized, strained or damaged elements, roof failure or building collapse.

"Beware of this company. I had Jonathan come out to provide me with a verbal report on the condition of some termite damage in my basement. With each visit, he wanted more drywall removed and exacerbated the perceived severity of the situation. I soon realized that he was more problem focused than solutions oriented. I decided that I would prefer to look elsewhere for services to mitigate my issue, and effectively terminated our contract. Jonathan, without my knowledge and with what I perceive to be malicious intent, then sent his partially complete report to the Village reporting my property. Half the report was guesswork as to the extent of the damage as they were about areas that he was not even able to visually inspect. The village, after reading the report, became spooked and are asking for more than I and my professionals agree is necessary to mitigate the safety risk. Needless to say, I will never again use his services and I strongly advise that others be wary as well."

Patricia P on July 2024

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Structural Engineering questions, answered by experts

Foundation cracks that are 1/8 inch wide or less, aren’t uneven across the gap, and don’t continue widening over time are usually just normal settling cracks and don’t suggest structural issues. Horizontal cracks and stair-step cracks on foundation walls, any cracks that continue widening, are wider than 1/8 inch, or where one side juts out beyond the other, are often indicative of structural damage.

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.

Yes, they offer plans for repairs or reinforcements to address issues.

Any issue that affects the structural integrity or soundness of a home is considered a structural issue. In addition to foundation cracks, other signs of structural issues include roof leaks, bowing walls, sloping floors, gaps around windows and doors, and more.

A 4-inch-thick concrete slab can support around 4,000 pounds per square foot if a contractor reinforces the slab with rebar, while that same slab without reinforcements will support closer to 1,000 pounds. For the purposes of a patio, 4 inches in thickness without reinforcement should suffice unless you’re installing heavy kitchen equipment or a hot tub on it. In those cases, reinforcing your slab and sticking with 4 inches of thickness should provide plenty of strength.

The Sleepy Hollow, IL 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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