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TRUSTED BY WILLOW SPRINGS, IL HOMEOWNERS

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

Find Structural engineers in Willow Springs

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
880 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 Atlas Restoration LLC

Atlas Restoration LLC

11441 Melrose Ave.
4.68(
187
)
Approved Pro

Atlas Restoration LLC

11441 Melrose Ave.
4.68(
187
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
139 local quotes requested

With over 40 years of experience, Atlas Restoration LLC offers a wide variety of the most efficient and cutting-edge waterproofing and foundation repair services throughout the Chicagoland area. Our highly trained team provides exceptional service from your initial call to installation. We guarantee each client a custom job-specific repair solution, ensuring you’re entirely satisfied with the outcome. Contact us today to book your appointment for a free estimate—let's get started on your project!

"Went very well. They came on time, did a great job. Will hire again if needed."

MICHAEL N on March 2022

With over 40 years of experience, Atlas Restoration LLC offers a wide variety of the most efficient and cutting-edge waterproofing and foundation repair services throughout the Chicagoland area. Our highly trained team provides exceptional service from your initial call to installation. We guarantee each client a custom job-specific repair solution, ensuring you’re entirely satisfied with the outcome. Contact us today to book your appointment for a free estimate—let's get started on your project!

"Went very well. They came on time, did a great job. Will hire again if needed."

MICHAEL N on March 2022


Avatar for AGGO Construction & Engineering, LLC

AGGO Construction & Engineering, LLC

5425 W Wilson Ave
5.00(
10
)
Approved Pro

AGGO Construction & Engineering, LLC

5425 W Wilson Ave
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
88 local quotes requested

We specialize in Structural Engineering Services and various types of Construction Jobs. Structural Engineering: Structural Design & Inspections Professional Condition Assessments Streamlined Permit Planning Thorough Construction Oversight Construction & General Contracting: Construction Management Structural Framing (Steel) Custom Outdoor Living Spaces (Decks and Pergolas) Specialized Welding and Metal Work Masonry and Concrete Solutions Railing - new fabrication and rehabilitation

"Ken and the folks at AGGO did an excellent job with our stairs. They came very quickly to give an estimate and listen carefully to our problem. They completed the work quickly, efficiently, and for a great price--easily beating other bids."

Andrew I on July 2021

We specialize in Structural Engineering Services and various types of Construction Jobs. Structural Engineering: Structural Design & Inspections Professional Condition Assessments Streamlined Permit Planning Thorough Construction Oversight Construction & General Contracting: Construction Management Structural Framing (Steel) Custom Outdoor Living Spaces (Decks and Pergolas) Specialized Welding and Metal Work Masonry and Concrete Solutions Railing - new fabrication and rehabilitation

"Ken and the folks at AGGO did an excellent job with our stairs. They came very quickly to give an estimate and listen carefully to our problem. They completed the work quickly, efficiently, and for a great price--easily beating other bids."

Andrew I on July 2021


"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
79 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


Avatar for Swaevyr Engineering

Swaevyr Engineering

No reviews yet

Swaevyr Engineering

No reviews yet
3 years of experience

Swaevyr Engineering stands as a premier engineering & design firm that excels in providing tailored solutions across a diverse array of sectors & utilities. We go beyond traditional consultancy by also offering advanced Computer-Aided Design (CAD) drafting services across various industries. Our expertise extends across fields, including utilities, construction, traffic control, security, fire protection, and beyond. We are defined by a commitment to precision and excellence to each of our clients for every project. Choose us as your reliable partner for those seeking innovative designs and unparalleled drafting services.

Swaevyr Engineering stands as a premier engineering & design firm that excels in providing tailored solutions across a diverse array of sectors & utilities. We go beyond traditional consultancy by also offering advanced Computer-Aided Design (CAD) drafting services across various industries. Our expertise extends across fields, including utilities, construction, traffic control, security, fire protection, and beyond. We are defined by a commitment to precision and excellence to each of our clients for every project. Choose us as your reliable partner for those seeking innovative designs and unparalleled drafting services.


"Well so far so good. Must make sure gutter in area is cleaned out also."

Louie L on October 2019

We have over 20 years of combined experience, ex employees of big named brand companies offering the same services, the same material, at a better price. Family owned buisness.

"Well so far so good. Must make sure gutter in area is cleaned out also."

Louie L on October 2019


Nichic Corporation General Contractors

111 W Jackson Blvd
5.00(
1
)

Nichic Corporation General Contractors

111 W Jackson Blvd
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Nichic Corporation General Contractors is a company that build new homes and buildings commercial and residential. We offer services in remodel, rehab, convert and repair commercial and residential buildings. We billing our services according with standard contracts agreements. We do not have special promotions, because our services are fair and sometimes below the market value. Anyway, we performed extra work which is not part of our scoop of work in the signed contract, if this extra work is in our way to continue with the scoop of work in the contract and if the amount of labor doesn't exceed $300.00 and the materials are not above $150.00 and if the original contract is $5,000.00 or more. We notifiy and identify the extra work at the moment which this appear in our way. We can make financing arrangments with Wells Fargo Bank, Banks of America and US Bank, but the final decision is on them. Each sub-contractor working for Nichic Corporation is passed by a strict verification of all insurance, license, workers comp etc.

Nichic Corporation General Contractors is a company that build new homes and buildings commercial and residential. We offer services in remodel, rehab, convert and repair commercial and residential buildings. We billing our services according with standard contracts agreements. We do not have special promotions, because our services are fair and sometimes below the market value. Anyway, we performed extra work which is not part of our scoop of work in the signed contract, if this extra work is in our way to continue with the scoop of work in the contract and if the amount of labor doesn't exceed $300.00 and the materials are not above $150.00 and if the original contract is $5,000.00 or more. We notifiy and identify the extra work at the moment which this appear in our way. We can make financing arrangments with Wells Fargo Bank, Banks of America and US Bank, but the final decision is on them. Each sub-contractor working for Nichic Corporation is passed by a strict verification of all insurance, license, workers comp etc.



"About 8 years ago, after a brutal series of flooding rains, we started getting water in our finished basement. Eventually over the years it became a huge problem whenever there was significant rain, which happened frequently. In August 2018 we unfinished the impacted part of the basement and obtained quotes for a repair. Seepageseal was by far the most responsive and most reasonable. They did not press us into a large scale expensive solution. They installed a vapor barrier and drain tiles, in addition to a sump pump. They brought in an experienced team that quickly, cleanly and efficiently completed the installation. It is now April 2019 and we have endured numerous rain storms that have flooded our neighbors basements. Their solution has proven 100% successful. We highly recommend this company."

TerriLynn K on April 2019

We specialize in basement and crawl space waterproofing. Our experienced team is dedicated to providing effective solutions to keep your basement dry and free from water seepage.

"About 8 years ago, after a brutal series of flooding rains, we started getting water in our finished basement. Eventually over the years it became a huge problem whenever there was significant rain, which happened frequently. In August 2018 we unfinished the impacted part of the basement and obtained quotes for a repair. Seepageseal was by far the most responsive and most reasonable. They did not press us into a large scale expensive solution. They installed a vapor barrier and drain tiles, in addition to a sump pump. They brought in an experienced team that quickly, cleanly and efficiently completed the installation. It is now April 2019 and we have endured numerous rain storms that have flooded our neighbors basements. Their solution has proven 100% successful. We highly recommend this company."

TerriLynn K on April 2019

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Structural Engineering questions, answered by experts

All foundations have footers, including monolithic slabs. In some cases, the foundation itself acts as the footer, as in the case of a floating slab and a monolithic slab. With a monolithic slab, the footers—which are just the bottom-most portion of the foundation that distributes loads down to stable soil—are a part of the main slab and are constructed with a single pour.

A structural engineer evaluates any structural components, like floors, foundations, walls, and roofs, to ensure they can support the structure. They also consider the soil quality in your area, potentially extreme weather conditions, and proximity to bodies of water and groundwater to ensure your building can withstand any stresses placed on it by the surrounding environment. Structural engineers work on both new and existing buildings.

Whether you’re building a new home or building an extension on your existing property, you will likely need both a structural engineer and an architect. A structural engineer will determine what loads your foundation and framing can safely handle, and an architect will draw plans according to those structural calculations to simplify the building process. You can start by contacting a structural engineer near you, as many work alongside architects and can get all of the prep work done at once.

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

Indications include cracks in walls, uneven floors, and sticking doors or windows that suggest foundation movements.

The Willow Springs, IL homeowners’ guide to structural engineering services

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