Top-rated structural engineers.

Get matched with top structural engineers in Lake Forest, IL

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

TRUSTED BY LAKE FOREST, IL HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon25
    Verified structural engineering services reviews

Find Structural engineers in Lake Forest

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

Serving Lake Forest, 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
Avatar for AGGO Construction & Engineering, LLC
AGGO Construction & Engineering, LLC
5.0(
14
)
Engineer - Structural

Serving Lake Forest, IL and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Linda was excellent! Knowledgeable, great communicator and honest. We were told structural work was needed on our 100+ year home but after a thorough assessment, Linda recommended tuckpointing only!"
20 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Marc Anderson Architects
Marc Anderson Architects
5.0(
8
)
Draftsperson/CADDArchitectArchitect - For Business

Serving Lake Forest, 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
A P Builder & General Contractor LLC
4.1(
97
)
ArchitectArchitect - For BusinessDraftsperson/CADD

Serving Lake Forest, IL and surrounding areas

Approved

Warranties offered

Customers say: Super punctual

"Our experience with AP Builder was great. Angelo was very knowledgeable and professional, keeping us informed every step of the way. This was a big important project for our home and I am extremely happy with how it came out! The cost was very reasonable and there were no surprises, everything was open and honest. I would definitely use them again and recommend to friends and family. Thank you AP!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

Response time5 days
Response rate99%
4 neighbors recently requested a quote
Kristen Eva Kollias Architect
5.0(
12
)
Architect

Serving Lake Forest, 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
Avatar for Senga Architects
Senga Architects
4.3(
34
)
ArchitectArchitect - For Business

Serving Lake Forest, 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
Avatar for Randolph Liebelt- Architect
Randolph Liebelt- Architect
4.4(
26
)
ArchitectArchitect - For Business

Serving Lake Forest, IL and surrounding areas

Approved

In business since 1993

Free estimates

Customers say: Quick response

"I am extremely pleased that I selected Randolph Liebelt - Architect for my sunroom design. Randolph has been so easy to work with throughout the entire design process. He is an excellent listener and communicator so the experience is efficient and enjoyable. I am delighted with the final design and can't wait to get it built and move in! I wish everyone in the Home business was as good as he is!"
 First Floor Plan
 Beach House
 Long Grove, IL
Second-story Addition
 Dining Room

+53

Response time1 day
2 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Evolution Drafting
Evolution Drafting
3.6(
116
)
ArchitectDraftsperson/CADDArchitect - For Business

Serving Lake Forest, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I am having a full master bath and kitchen remodel done with new layouts in both rooms and knocking out a wall. Evolution worked with me to quickly get a drawing done of the new layouts so that the contractor could get started on the project. They made sure to include me in the process so that the design would be done exactly as my wife and I envisioned. They communicated effectively throughout the process and were always courteous and professional. I recommend them to anyone with drafting needs."
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
Avatar for Jane Price Architect
Jane Price Architect
5.0(
2
)
Architect

Serving Lake Forest, IL and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

We are dedicated to providing our clients with the very best in architectural design and a variety of other projects. With over---years of combined experience, we take an enormous amount of pride in the attention to detail we put into each of the projects we are involved in. We are known for innovation, quality work and the integrity of our business practices. We look forward to building long-term relationships with our clients and guarantee your satisfaction. We look forward to discussing your project in detail.

Kitchen
Kitchen
Main Bathroom
Guest Bath
Main Bath

+18

Response time2 days
Response rate87%
3 neighbors recently requested a quote
...
Showing 1-10 of 84
Structural Engineering questions, answered by experts

Dormers must be able to bear the load of their own construction and the added window. The style of the dormer, however, will determine where the weight loads onto your home's structure. A gable dormer bears the weight on the side walls whereas a shed dormer bears it on the front walls.

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.

It's safe to assume that all exterior walls are load-bearing, or at least have load-bearing characteristics. Some older homes feature porches or bump-outs that don't rest on the home's foundation. However, they still must carry the weight of the roof section they support. Walls containing floor-to-ceiling glass or other non-structural elements must use post and beam configurations to meet load-bearing criteria.

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.

A 4-inch-thick concrete slab can support around 4,000 pounds per square foot if a contractor reinforces the slab with rebar, while that same slab without reinforcements will support closer to 1,000 pounds. For the purposes of a patio, 4 inches in thickness without reinforcement should suffice unless you’re installing heavy kitchen equipment or a hot tub on it. In those cases, reinforcing your slab and sticking with 4 inches of thickness should provide plenty of strength.

The Lake Forest, IL homeowners’ guide to structural engineering services

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