Top-rated structural engineers.

Get matched with top structural engineers in Saint Charles, IL

Enter your zip and get matched with up to 5 pros

Need a pro for your structural engineering project in Saint Charles, IL?

Select your specific project to find the pro for you.

Find Structural engineers in Saint Charles

Avatar for Great Lakes Builders Inc
Great Lakes Builders Inc
4.8(
169
)
Engineer - Structural

Serving Saint Charles, IL and surrounding areas

Approved

In business since 1946

Customers say: Super punctual

"Great Lakes Builders were amazing. They were fantastic problem solvers and partners, collaborating every step of the way with our structural engineer and us. It was apparent that completing quality work within the timeframe and estimate really mattered to them. We were even out of town for part of our project, and they zoomed with us daily to show us exactly what was being done. They were helpful in connecting us to outside contractors (dry wall, electrician, etc) so that by the time the project was completed, it was REALLY completed. They were meticulous, methodical, helpful AND friendly."
Response time1 day
Response rate100%
1 neighbors recently requested a quote
Avatar for AGGO Construction & Engineering, LLC
AGGO Construction & Engineering, LLC
5.0(
14
)
Engineer - Structural

Serving Saint Charles, IL and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I would (and almost certainly will) work with AGGO again! We are buying a house and something came up where we needed a structural engineer to inspect something on very short notice. I reached out though Angi's to any company that might possibly employ structural engineers and Linda, a Structural Engineer with AGGO got back to me right away, first thing in the morning and was able to squeeze us in that very night. Linda was thoughtful and thorough. She careful looked over everything and even brought a large, bright light since it was after dark. She took her time, answered all of our questions, and gave us advice on other concerns and things to watch out for as well as reassuring us about things we didn't need to worry about in this situation. Even though she was probably working past her normal work hours to squeeze us in, nothing felt rushed or hasty."
24 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Marc Anderson Architects
Marc Anderson Architects
5.0(
8
)
ArchitectArchitect - For BusinessDraftsperson/CADD

Serving Saint Charles, IL and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

Marc Anderson Architects is an easy-to-work Chicago-based full-service architecture and design firm serving the greater Chicagoland area. We listen to our clients to learn and then adopt their goals as our own. These goals focus our work to find the best custom design for each client. Our knowledge of construction methods expands our creative flexibility while also providing cost-effective solutions. With experience in residential, mixed-use developments, commercial build-outs, public institutions, daycare centers, and commercial tenant improvements, MAA is well prepared to help you plan a beautiful, functional space that fits your specific needs.

Garage & Workshop
This is what the house looked like after it was completed.
Garage & Workshop
Garage & Workshop
1860s Queen-Anne Renovation

+26

Response time1 day
Response rate100%
1 neighbors recently requested a quote
Kristen Eva Kollias Architect
5.0(
12
)
Architect

Serving Saint Charles, IL and surrounding areas

Approved

In business since 2005

Free estimates

Offers commercial services

"Architect Kristin Kollias has provided me with professional and responsive help in the renovation of a vacant single family bungalow in Chicago that required extensive repair for compliance with the City of Chicago codes. She assisted in guiding me in obtaining required site plan for the residence; addressed the structural, electrical and plumbing details required; drafted and created the architectural floor plans that fit my vison of interior space; and facilitated in obtaining the necessary city permits from City of Chicago. Clearly she is a true professional and her services are greatly appreciated."
Response time4 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
A P Builder & General Contractor LLC
4.1(
98
)
ArchitectArchitect - For BusinessDraftsperson/CADD

Serving Saint Charles, IL and surrounding areas

Approved

Warranties offered

Customers say: Super punctual

"Angelo and his crew were WONDERFUL. Every promise that AP Builder / Angelo made was met and exceeded.
1. Angelo gave me a anticipated completion date for the construction job: he finished before the completion date.  I even allocated additional time in the contract in order for his company to finish the job, but he didn't need it. He kept to his schedule and his promise.
2. Angelo gave me a cost estimate: he kept his promise on cost exactly. The only additional amounts of money spent were because I modified and changed a couple of construction points.
3. Angelo assured me that I would be happy with the workmanship: his promises were exceeded. The law office building addition turned out wonderful.
4. Communication with Angelo during construction: Angelo and his office was exceedingly responsive to my questions and requests. I always knew that when I called that I would either speak with him directly, receive a punctual call back from him, and he would agree to meet me at the construction site at an agreed time.
5. Angelo exceeded all of my expectations at a very reasonable cost. His company provides top quality work for a bargain price.  As a side note, Angelo caught and fixed a structural problem before it happened. The architect had under-estimated the strength needed for a main load beam, Angelo pointed out the flaw, and we fixed the problem before it was built into the structure.  He saved me from a HUGE problem down the road (when the roof would have buckled and bent).  Angelo's decades of experience cannot be understated.
I read another review of AP Builder wherein the author suggested that this company was a bit expensive. I strongly disagree. I would suggest instead that some people may have unrealistic expectations and want to cut corners and prices when instead they should be investing in quality work. 
If Angelo will accept your job, you should seriously consider using this guy.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

Response time5 days
Response rate99%
3 neighbors recently requested a quote
Avatar for APEX Drafting LLC
APEX Drafting LLC
4.3(
6
)
Draftsperson/CADD

Serving Saint Charles, IL and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience.\nYou will find us to be competitively priced with close attention to the details.\nOur reputation is based on service, safety, and quality, regardless of how large or small the job.\nWe look forward to building a lasting relationship and guarantee your satisfaction!\n

Plan set 1
113 neighbors recently requested a quote
Robert Anthony Renovations
5.0(
1
)
Draftsperson/CADD

Serving Saint Charles, IL and surrounding areas

Approved

At Robert Anthony Renovations, we specialize in high-quality interior and exterior home renovations with a focus on craftsmanship, detail, and customer satisfaction. We provide full-service remodeling and renovation solutions including kitchens, bathrooms, basements, interior painting, custom built-ins, custom multi-piece crown moulding, wainscoting, decorative accent walls, custom ceilings, drywall, flooring, decks, siding, and exterior painting.\n\nWe take pride in delivering clean, professional work that transforms homes and adds long-term value. Whether it’s a complete remodel or detailed finish carpentry, every project is completed with precision, reliability, and strong communication from start to finish.\n\nOur goal is simple — provide homeowners with quality work, honest service, and results that stand out.\n\nServices Include:\n• Kitchen Remodeling\n• Bathroom Remodeling\n• Basement Finishing\n• Interior & Exterior Painting\n• Custom Built-Ins & Trim Work\n• Crown Moulding & Wainscoting

Ascended Constructions
New to Angi
ArchitectDraftsperson/CADD

Serving Saint Charles, IL and surrounding areas

Approved (Corporate)

In business since 2023

Offers commercial services

We’re a family owned and operated company that values honesty and integrity, and stands behind our work. We offer over 40 years of industry experience. We specialize in Asphalt Shingle Roofing installation, replacement, and repairs. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

1 neighbors recently requested a quote
...
Showing 1-10 of 74
Structural Engineering questions, answered by experts

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.

The depth of any foundation style depends on your climate and how deep the frost line is, as building code requires that the footers of a foundation—which are built into a monolithic slab—sit at least a foot below the frost line. At the southern tip of Florida, for example, a monolithic slab foundation would only need to sit 12 inches under the soil at the widest parts. On some parts of the Canadian border, the frost line is 100 inches, which would mean a minimum of 112 inches, which is prohibitively deep for a monolithic slab.

No, a structural engineer is not the same as a builder. A structural engineer is an expert in all things related to the structural integrity of a building. The structural engineer is responsible for calculating the correct materials in terms of load-bearing capacity and overall structural safety. Structural engineers do not perform the actual building of the house or other structures. Rather, the builder executes the plans and designs specified by the structural engineer.

Failure to compact the soil during construction is the most common cause of leaning retaining walls. In addition, poor drainage can lead to excessive water pressure behind a retaining wall, pushing against it until it begins to move forward away from the soil it is holding back.

You should avoid drilling or cutting into load-bearing beams because removing material will weaken it and increase the risk of structural damage or even collapse. If you do need to drill into a load-bearing beam, speak with a structural engineer first to discuss where it’s safest to drill and the width and depth of the bit that’s safe to use.

The Saint Charles, IL homeowners’ guide to structural engineering services

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