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TRUSTED BY ADDISON, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon10
    Verified structural engineering services reviews

Verified Reviews for Structural Engineering pros in Addison, IL

*The Angi rating for Structural Engineering companies in Addison, 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 Addison, 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 March 03, 2026

Find Structural engineers in Addison

Avatar for Great Lakes Builders Inc
Great Lakes Builders Inc
4.8(
169
)

Serving Addison, IL and surrounding areas

Approved

In business since 1946

Customers say: Super punctual

"Martin and Great Lakes are consummate professionals. They are incredibly knowledgable about structures and the factors and variables that can affect them -- both internal and external. For our work, they excavated along the foundation to allow us to analyze our foundation. We highly recommend them to preserve the structure of your facilities new and old."
Response time1 day
Response rate100%
Recommended by97%of homeowners
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Avatar for AGGO Construction & Engineering, LLC
AGGO Construction & Engineering, LLC
5.0(
14
)

Serving Addison, IL and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I had a very good experience with Aggo construction. They were very responsive and reliable. They were here when they were supposed to be and we collaborated on the project. I would definitely work with this company again."
20 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for Structural Consultants, Ltd.
Structural Consultants, Ltd.
4.7(
46
)

Serving Addison, IL and surrounding areas

Approved

In business since 2005

Free estimates

Small jobs welcome

"Very knowledgeable and considered all possible factors contributing to structural problems being experienced in my home."
Glencoe Prairie - Rear
Glencoe Prairie - Front
Samples of recent work
Lincolnwood French
Wilmette - 1520 Interior Stair hall

+1

Response time1 day
45 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for Marc Anderson Architects
Marc Anderson Architects
5.0(
8
)

Serving Addison, IL and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Marc did a great job on our garage expansion project! He was friendly and professional, taking all of our ideas and criteria and combining them into a great layout. The drawings themselves look great. We are still shopping the plans around to contractors, and Marc is always helpful with advice or ways to reduce cost. Would definitely recommend him to anyone looking for an architect."
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%
3 neighbors recently requested a quote
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Kristen Eva Kollias Architect
5.0(
12
)

Serving Addison, 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
3 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Senga Architects
Senga Architects
4.3(
34
)

Serving Addison, IL and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"We met with owner/senior architect, Firmin Senga to join us in the viewing of our desired property. We wanted to have an architect on board with us for reassurance that the updates we plan will work before we make an offer. He was very helpful."
Exterior
The front of the rehabbed house
Building Entrance
Gazebo
Front of New House

+63

Response time1 day
126 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Evolution Drafting
Evolution Drafting
3.6(
116
)

Serving Addison, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Evolution Drafting did a great job modifying my existing plans and updating for Arizona codes and took care of the structural engineering as well."
Zeal Floor Plan
Charcoal
Palm Floor Plan
Charcoal Floor 2
Charcoal Floor 1

+23

Response time1 day
Response rate100%
56 neighbors recently requested a quote
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Showing 1-10 of 87
Structural Engineering questions, answered by experts

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.

The standard thickness for an LVL beam is between 1.75 inches and 7 inches. However, you can order LVL beams in non-standard sizes as well. When you work with a contractor, they can source beams that are the appropriate size for your project for you after assessing your blueprints.

No, beams are the primary load-bearers for flooring or roofing systems, and they distribute the weight of the structure to your foundational supports, while joists bear far less weight and distribute their loads to the beams. Beams are usually thicker and longer, and they have support posts or foundation walls beneath them for support.

Costs depend on furniture type, size, complexity, and whether additional modifications are needed.

Most lenders and homeowner’s insurance companies don’t mandate a structural engineer’s inspection, so in most cases, it’s not required. However, it’s a good idea to have one done anyway to ensure you know what you’re buying. You can use the report to carry out repairs after closing or even to negotiate the sale price before closing.

The Addison, IL homeowners’ guide to structural engineering services

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

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