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Structural Dynamics Inc

Concrete Flatwork - Repair & Resurface, Poured Concrete Wall Service, Concrete Foundation Installation,

About us

Licensed Structural Engineers and Structural repair contractors. Investigation and repair of structural defects. Structural Engineering inspections and reports for all types of structures. Sinking buildings lifted and stabilized, foundations replaced, beams replaced, bearing walls removed, leaning and bowed foundation walls straightened and stabilized. Additional Service Area: Portions of Lee County.

Business highlights

39 years of experience

Services we offer

& Industrial Structural Repair., Commercial, Residential

Reviews
4.834 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
85%
4
12%
3
0%
2
0%
1
3%
Showing 1-25 of 34 reviews
Malgorzata D.
Oct 2021
1.0
$19,000
Dishonest and poor workmanship. Hired to remove and replace deteriorated framing. Contract was signed to be billed on a time and material basis. Hours billed was to include only travel time from their base in Sycamore to my property (20-30 min), pick-up of project materials, and work performed. I purchased all required project materials, per provided list. I was assured that all of my calls and questions would be answered before, during, and after work is completed, however owner, Theodore C., has been refusing contact since I signed the contract. Work took them 5 weeks, yet they worked only 14 days during that period, putting work on hold multiple times to start work for other customers. I complained multiple times about the crew not working, instead spending ~30 min every hour smoking in their truck or north side of house. A large section of wall, 10-15 feet in length, was left open for an extended period of time (roughly a week). This left my crawlspace exposed to the elements (this was during a period of frequent rain), as well as animals. Despite my crawlspace being encapsulated, I am still working to combat the moisture present from their negligence. The completed work is unsatisfactory, as it is out of level with large open gaps (you can see light comming thru), and I cannot be sure if it is even safe. SD representative, Denny S., was supposed to have filed a permit with the City of Elgin (signed by me same day as I signed contract) and had stated that he had the permit on hand at the start of work. He provided date of final inspection and I waited all day for the inspector to arrive—they never did. After that, I called the city multiple times regarding the permit for the now completed work, however they had no record of a permit application being approved, or even filed. Crew was present on my property for an average of 5-6 hours a day; I reported end times to SD rep every day via text message. Total hours present on property equaled 80.25 hours. SD is billing for 108.25 HR + some trips to Lowe’s, and is not willing, nor able to explain difference in hours worked or the added shopping charges (I had purchased all materials). At first, the invoice billed for dates when no work was performed, an “adjusted” invoice showed the same hours worked, only changing dates. I requested an explanation of the charges multiple times, however SD reps refused to provide an answer. The only explanation I was able to receive from SD’s secretary after I expressed that I do not understand how there can be such a difference between the billed hours and the hours actually worked, given that I had recorded start/end times, was that “customers are usually not present while they are working” (based on this statement, I assume I am not the first to be overcharged). After SD failed to provide explanation of charges and refused to adjust invoice, payment was submitted for 96 HR (less deposit) = 80.25 HR + 14 HR travel (14 days) + 1.75 HR for materials pick up (store pick up prepaid by me). This leaves an overcharge of 12.25 hours + Lowe’s charges that aren’t related to work performed on my property (I purchased and paid for all materials from Menards). The crew was also disrespectful to me and my property. One worker referred to my house as “three pigs home,” referring to myself, my daughter, and our dog. They also took things from my garage without permission. I have cameras in my garage, as well as the front and back of my house, and was present for much of the work, allowing me to experience their behavior. I submitted a complaint to the BBB on 09/19/21, however they closed the complaint after they failed to receive a response from SD. Shortly after, SD reps contacted me stating that I need to pay an additional $350 for them to finalize the permit with the city (~3 weeks after jobs end), and have since received an updated balance statement charging interest for the still unexplained charges.
Response from Structural Dynamics Inc
"Completely false. Grading at the exterior of the home was above the first floor framing which caused it to deteriorate. The extent of the deterioration was unknown so we gave her 2 options for completing the job. A set price of $40,000 or time and material. The contract for time and material was signed and indicated that ALL TIME related to the job would be billed. This included loading and unloading equipment, picking up supplies, travel time to and from the job, etc. We completed the job in very timely and professional manner even with the terrible working conditions and her making it more much difficult than it needed to be. Anyone else would have run from her and the job but we stuck with it and got it done. The final price came out to less than ½ of what the set price was, she refuses to pay the bill, and is still complaining and writing bad reviews. Unbelievable."

Gwen R.
Apr 2018
5.0
Yes, I recommend this pro
$350
Very professional and helpful! I received conflicting info. from contractors if one of our walls was load barring, and it was nice to have the piece of mind from a structural engineer to give us an actual answer! If your in doubt whether or not your wall is load barring or not, don't take the risk - call a structural engineer!

Lynn T.
Oct 2017
5.0
Yes, I recommend this pro
$2,800
This company is owned by Ted Carlson who is a structural engineer. After speaking with Ted over the phone, I decided to have them replace all 4 columns in my basement as all were rusting but only 2 had vertical cracks. The workers that showed up were finished in a few hours even though they had to break up the concrete to remove the old columns, install and weld the new columns in place and then redo the concrete on the floor. They did a fantastic job and even the city inspecter was impressed! I totally recommend this company!

Tonya H.
Aug 2017
5.0
Yes, I recommend this pro
$12,000
Excellent. The price was very fair. The guys were detailed, professional and punctual. The job was done in less than a week. They cleaned up every day they were done working and when you are busting up concrete it is a messy job. I felt comfortable leaving them in my home to do the work when I was not there. I would call them again if the need ever arises.

Kelly L.
May 2017
4.0
Yes, I recommend this pro
Owner (Ted) came out and rechecked the space, comparing to previous analysis/measurements. Deducted that - while he would've supported the basement differently when building it - no action was needed at this time. Provided some peace of mind.

Catherine H.
Nov 2016
5.0
Yes, I recommend this pro
They came out and ran a number of tests on every level of the house. It turned out the house was sound and the issues were caused from the house settling and the way the support beams were run in the attic. They said we could shore up the center pillars in the crawl space by than 1/2" or less but that it wasn't necessary. It was good to know the house was sound and that we did not have any structural damage.

John L.
Aug 2016
5.0
Yes, I recommend this pro
$5,600
The job went very well. The crew was very efficient, clean and fun to work with. Structural dynamics worked well with the village and provided the village the drawings needed for the permit.

Donald H.
Sep 2015
5.0
Yes, I recommend this pro
$550
A laser level was set up and measurements were taken around the room with defects.  Results indicated that there were no structural issues with the building.  The cracks in the floor and ceiling were more cosmetic.  As a result of the inspection, we are proceeding to gather quotes on repairs.

JOAN K.
Aug 2015
5.0
Yes, I recommend this pro
We are very please with the service. The workers were friendly. They were prompt and always on time. They stayed busy all the time.

Michelle O.
Jul 2015
5.0
Yes, I recommend this pro
$1,900
It went well. 

Kimberly C.
May 2015
5.0
Yes, I recommend this pro
$400
He was very thorough.  We presented him with three options for repair
that we had received from three different contractors and he was able to
tell us which one was by far and away our best choice.  We are so glad
that we sought the advice of Structural Dynamics before making a
decision on a large structural repair.

Kimberly H.
Apr 2015
5.0
Yes, I recommend this pro
$500
Went very well. Tenant complained of a loud BANG followed by finding 12 ceramic tiles (6longx2wide) in the kitchen tented up and unattached from subfloor. Ted took measurements in the basement with laser equipment. He determined the foundation is sound, but the 2x8 joints supporting to the floor above had sagged to much over time.  Described 3 different ways this could be fixed, including one method that was a *lot* less expensive than the other two methods, and that we were able to do very quickly.

John O.
Mar 2015
5.0
Yes, I recommend this pro
$400

Promptly returned call, showed up when promised.

Provided info requested


Response from Structural Dynamics Inc
"Thank You!"

Gary C.
Feb 2015
5.0
Yes, I recommend this pro
$4,000
The project was performed to my expectations and cost.
Response from Structural Dynamics Inc
"Thank You!"

Stephen K.
Jan 2015
5.0
Yes, I recommend this pro
$250
good service.
Response from Structural Dynamics Inc
"Thank You!"

Ghia B.
Jan 2015
5.0
Yes, I recommend this pro
$475
Mr. Carlson was very professional, He thoroughly inspected the area and he is very good with his line of profession. will definitely recommend his services.
Response from Structural Dynamics Inc
"Thank You!"

LAURA W.
Dec 2014
5.0
Yes, I recommend this pro
$3,000
We used Structural Dynamics, Inc.. We are very happy with them. I would give them an 'A' plus. They were very professional. They understood the problem and were able to solve it. I like them. I am very happy with what they did. Honestly, I don't know about the pricing as I didn't shop around as they fit my needs and so I went with them. The quality of the work was very, very good. The professionalism was very much an 'A'.
Response from Structural Dynamics Inc
"Thanks!!"

JAMES P.
Nov 2014
5.0
Yes, I recommend this pro
$500
They were $500 a piece. Very professional. The structural engineer did a very thorough job documenting the condition of my foundation. Took lot of photographs provided a professional report. With the kind of documentation and opinion he provided he really helped me sell the home and overcome some issues I had.

JAMES P.
Nov 2014
5.0
Yes, I recommend this pro
$500
unknown

Mark A.
Apr 2014
5.0
Yes, I recommend this pro
$100
We had Wayne out again to look at the house and to see if things have moved since last time. They have, but Wayne again took a carefully considered and measured approach. Our split level is just apparently flexing a bit, but no big repairs needed as of yet.
Everyone else (and I mean I've seen everyone else over the past two years) wanted to throw in as many piers as they could as soon as possible, which could actually make things worse. I feel like we've gotten terrific counsel from Wayne.
As a bonus, Wayne gave me a little advice on the roof and some flooring problems too. Cannot say enough good things about the service we've gotten so far. Highly recommended.

Todd L.
Apr 2014
4.0
$200
unknown
Response from Structural Dynamics Inc
"We appreciate any member’s review. In this case we believe that the member has confused us with another company. We have no record of doing the work listed. At, Structural Dynamics, we take great care to offer our customers the highest level of customer service. If an error should ever occur on our end we will be quick to remedy any issues to the customer’s satisfaction. Please see all of our other great reviews for a more accurate representation of our quality of work and customer service."

Matt S.
Mar 2014
5.0
Yes, I recommend this pro
$350
Ted asked for the inspection report so that he can review the issues prior to coming on site.  I really liked this because he did his homework.  He came on site and took measurements with his laser to determine how much settling there was.  He indicated to us that there was not much to worry about which can gave me a huge peace of mind.  Most important, he answered questions even after he was paid and took time to explain things.  This to me showed his integrity.

Dolores G.
Jan 2014
5.0
Yes, I recommend this pro
$400
We were very happy with his services and would highly recommend him.

Richard S.
Jan 2014
5.0
Yes, I recommend this pro
$28,000
Overall the project went as desired though the full "start to finish" timeline took several months.  We primarily worked through Wayne Leonardi (Project Manager) with some contact with Ted Carlson (Structural Engineer and Owner).  Wayne was very thorough in the diagnostic process but it took a long time to get the actual repair recommendations and then another few months until the project took place.  The repair project itself went very well and the crew was great.  They showed up as expected and worked very hard to get things right.  
I have already recommended SDI to others and would have them work again.  I just don't wish this kind of problem on anybody.

Coralie C.
Oct 2013
5.0
Yes, I recommend this pro
$350
I contacted them here on Angies List. We had an appointment soon after. During the appointment he listened to what we needed, took measurements, gave advice, took notes and left. A few days later we had our pdf so now we can get our city permits. It was quick, easy, and painless.
Showing 1-25 of 34

Licensing

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FAQ

Structural Dynamics Inc is currently rated 4.8 overall out of 5.

No, Structural Dynamics Inc does not offer free project estimates.

No, Structural Dynamics Inc does not offer eco-friendly accreditations.

No, Structural Dynamics Inc does not offer a senior discount.

No, Structural Dynamics Inc does not offer emergency services.

No, Structural Dynamics Inc does not offer warranties.