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TRUSTED BY OSWEGO, IL HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon28
    Verified structural engineering services reviews

Verified Reviews for Structural Engineering pros in Oswego, IL

*The Angi rating for Structural Engineering companies in Oswego, 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 Oswego, 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 October 05, 2025

Find Structural engineers in Oswego

Avatar for Perma-Seal Basement Systems

Perma-Seal Basement Systems

412 Rockwell Ct
4.43(
1,404
)
•Approved Pro

Perma-Seal Basement Systems

412 Rockwell Ct
4.43(
1,404
)
•Approved Pro
Customers say: Super punctual
886 local quotes requested
46 years of experience

Perma-Seal specializes in protecting the value of your home backed by 45 years of serving the Chicagoland and NW Indiana areas. Our basement waterproofing stops leaks and flooding, our foundation repairs fix settling and bowed walls, and our crawl space solutions control humidity and improve air quality. Our concrete lifting and leveling service offers a reliable, quick, and highly effective way to repair your sunken, cracked driveway, patio, pool deck, or sidewalk for a fraction of the cost of replacement. Additionally, we provide yard drainage solutions, sewer and plumbing services, and home comfort solutions such as air sealing, and insulation to ensure your home remains in top condition. What sets us apart? Our commitment to superior customer service and our solid warranty. Any product or work covered by our warranty is serviced free of charge for the entire warranty period. Choose Perma-Seal for reliable, quality solutions to keep your home safe and comfortable.

"Jose and the team did a great job. Very professional and communicative. We're happy with the result and would recommend them."

ELAINE O on September 2025

Perma-Seal specializes in protecting the value of your home backed by 45 years of serving the Chicagoland and NW Indiana areas. Our basement waterproofing stops leaks and flooding, our foundation repairs fix settling and bowed walls, and our crawl space solutions control humidity and improve air quality. Our concrete lifting and leveling service offers a reliable, quick, and highly effective way to repair your sunken, cracked driveway, patio, pool deck, or sidewalk for a fraction of the cost of replacement. Additionally, we provide yard drainage solutions, sewer and plumbing services, and home comfort solutions such as air sealing, and insulation to ensure your home remains in top condition. What sets us apart? Our commitment to superior customer service and our solid warranty. Any product or work covered by our warranty is serviced free of charge for the entire warranty period. Choose Perma-Seal for reliable, quality solutions to keep your home safe and comfortable.

"Jose and the team did a great job. Very professional and communicative. We're happy with the result and would recommend them."

ELAINE O on September 2025

Avatar for Structural Design Corp

Structural Design Corp

1133 Claridge Dr
5.00(
22
)
•Approved Pro

Structural Design Corp

1133 Claridge Dr
5.00(
22
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
72 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

870 Lively Blvd
4.85(
160
)
•Approved Pro

Great Lakes Builders Inc

870 Lively Blvd
4.85(
160
)
•Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
63 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

Jay Engineering and Survey

34207 S Rivals Rd
5.00(
1
)

Jay Engineering and Survey

34207 S Rivals Rd
5.00(
1
)
21 years of experience

Several but not all services we offer are: * Commercial - Residential - Municipal * Engineered Site Plans Building Addition Work Water Drainage Solutions New and Continuing Construction Survey / Engineering Property Corner Locating / Advisory Floodplain Studies Permit Work / Advisory Elevation Certificates Flood Insurance Reduction As Builts Construction and / or Graded Staking and Staking Plans Structural Analysis Architectural Plans Topographic Surveys Legal Description Revision / Advisory Erosion Control 815 354 4764 - [email protected] Contact us for a quote, to get scheduled in our limited openings, or with any questions!

Several but not all services we offer are: * Commercial - Residential - Municipal * Engineered Site Plans Building Addition Work Water Drainage Solutions New and Continuing Construction Survey / Engineering Property Corner Locating / Advisory Floodplain Studies Permit Work / Advisory Elevation Certificates Flood Insurance Reduction As Builts Construction and / or Graded Staking and Staking Plans Structural Analysis Architectural Plans Topographic Surveys Legal Description Revision / Advisory Erosion Control 815 354 4764 - [email protected] Contact us for a quote, to get scheduled in our limited openings, or with any questions!

Elite Stucco & EIFS Solutions

12125 E 65th St
4.93(
14
)

Elite Stucco & EIFS Solutions

12125 E 65th St
4.93(
14
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We want to keep our customers safe, we can come out and do a FREE estimate and the customer does not need to come meet us outside. We will then send the estimate via email. WE FOLLOW SAFE DISTANCING PRACTICES Call us at 317-413-6654 Specialising in Commercial and Residential Exterior Repair, Restoration and installation of traditional Stucco, Synthetic Stucco and EIFS, waterproofing, Painting exterior, Luxury limestone Fireplaces and now Epoxy Flooring.

"Sergio was excellent! He worked through some cold and wet weather to complete a pretty large repair at my church. The results were outstanding!"

Mitchell L on April 2024

We want to keep our customers safe, we can come out and do a FREE estimate and the customer does not need to come meet us outside. We will then send the estimate via email. WE FOLLOW SAFE DISTANCING PRACTICES Call us at 317-413-6654 Specialising in Commercial and Residential Exterior Repair, Restoration and installation of traditional Stucco, Synthetic Stucco and EIFS, waterproofing, Painting exterior, Luxury limestone Fireplaces and now Epoxy Flooring.

"Sergio was excellent! He worked through some cold and wet weather to complete a pretty large repair at my church. The results were outstanding!"

Mitchell L on April 2024

Engikeering, LLC

P.O. Box 5673
4.60(
10
)

Engikeering, LLC

P.O. Box 5673
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

Yes, you can build over a stump if the roots are no longer alive. Living roots will continue to grow and may damage your new construction over time. Similarly, you should also remove rotting stumps because they may continue to attract pests and even cause new structures (especially those made from wood) to decompose as well.

Squeaky floors don’t always mean structural damage. Usually, it’s caused by friction somewhere inside your floor—whether it’s a loose floorboard or a gap between the subfloor and joists. If there is structural damage, you’ll notice other signs like soft or sagging floors, cracks that go from the wall to the ceiling, and horizontal cracks on your foundation.

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

Although the two terms are closely related and often used interchangeably, pier and beam foundations and crawl spaces are different things. A pier and beam foundation is made up of concrete piers and wooden beams and creates a space under the home known as a crawl space. There are several types of foundations that create crawl spaces, often collectively known as “crawl space foundations,” but the crawl space itself is separate from the foundation. 

No, it’s not legal for unlicensed individuals to conduct structural calculations for buildings or building repairs. Not only do licensing requirements prevent DIYers from tackling this project, but mistakes can also be extremely dangerous and put your property and anyone inside or near it at risk of severe injury or even death. You should always hire a licensed and certified local structural engineer to make structural calculations.

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The Oswego, IL homeowners’ guide to structural engineering services

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