Top-rated structural engineers.

Get matched with top structural engineers in Illiopolis, IL

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

Verified Reviews for Structural Engineering pros in Illiopolis, IL

*The Angi rating for Structural Engineering companies in Illiopolis, 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 Illiopolis, 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 January 19, 2026

Find Structural engineers in Illiopolis

Avatar for Advanced Foundation Repair & Replacement

Advanced Foundation Repair & Replacement

5.00(
25
)

Advanced Foundation Repair & Replacement

5.00(
25
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We fix bowed walls, offer piering for foundation settlement and fix any & all foundation cracks. We also do structural repair.

We fix bowed walls, offer piering for foundation settlement and fix any & all foundation cracks. We also do structural repair.

Avatar for EHM

EHM

4.50(
16
)

EHM

4.50(
16
)
Customers say: Quality work
72 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

Avatar for Basements And More

Basements And More

No reviews yet

Basements And More

No reviews yet

Third generation mason with 40 years experience. Basements And More specialize's in Basement, Foundation, Bob Cat, and Concrete work of all types. Our experience save's our client's $1,000.00 every year. Located in Pontoon Beach, IL minutes from St. Louis MO our company has handled some of the biggest problem-some local areas. With Collinsville, IL and the mines causing foundation, concrete, and structural worries. To Granite City, IL being low lands making water easily passable into most basements. Finding the problem as well as a long term solution is when we come in. We stand behind our work 100% and have gotten all of our business from word of mouth. Recently expanding and now covering a 60 mile radius starting in St. Louis Missouri.

Third generation mason with 40 years experience. Basements And More specialize's in Basement, Foundation, Bob Cat, and Concrete work of all types. Our experience save's our client's $1,000.00 every year. Located in Pontoon Beach, IL minutes from St. Louis MO our company has handled some of the biggest problem-some local areas. With Collinsville, IL and the mines causing foundation, concrete, and structural worries. To Granite City, IL being low lands making water easily passable into most basements. Finding the problem as well as a long term solution is when we come in. We stand behind our work 100% and have gotten all of our business from word of mouth. Recently expanding and now covering a 60 mile radius starting in St. Louis Missouri.

Structural Engineering questions, answered by experts

Yes, walls on the top floor can be load-bearing if stacked on the floor’s foundation.

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.

A structural engineer’s report is almost always worth it, as it can help you avoid buying or overpaying for a home with structural issues. The most important thing the report does for you is provide peace of mind that you won’t have to pay thousands of dollars for structural repairs right after closing on a property.

Yes, ceiling joists are typically load-bearing. However, their primary function is to support the weight of the ceiling and loads applied to it, like lighting fixtures and ceiling fans. They can also help support the roof, especially if they’re part of truss systems. Remember, the load-bearing capacity of ceiling joists depends on the material, size, and space between them. 

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.

The Illiopolis, IL homeowners’ guide to structural engineering services

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

See all articles

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"