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Avatar for Great Lakes Builders Inc

Great Lakes Builders Inc

4.95(
125
)
Approved Pro

Great Lakes Builders Inc

4.95(
125
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
1946 years of experience

SUPER SERVICE AWARD WINNER 12 CONSECUTIVE YEARS. Great Lakes Builders is a structural contractor that specializes in protecting the value of existing properties through its “Structural Repair and Remediation” services and in adding value to existing properties through its “Structural Alterations” services. Great Lakes Builders has been providing "Structural Solutions" for residential, commercial and industrial properties since 1949. Great Lakes Builders provides Structural Engineering referrals to Homeowners and Building owners that require structural engineering services. Note: The phone numbers listed for Great Lakes Builders on Angi are all office landline phones so do not text us on these numbers.

"Their crew showed up on time, worked steadily on our job, explained what they were doing, got the job done on time, and cleaned up after themselves. Polite and professional the whole way. This is the second time we've used Great Lakes and would happily use them again, as well as recommend them to others."

Scott B on September 2025

SUPER SERVICE AWARD WINNER 12 CONSECUTIVE YEARS. Great Lakes Builders is a structural contractor that specializes in protecting the value of existing properties through its “Structural Repair and Remediation” services and in adding value to existing properties through its “Structural Alterations” services. Great Lakes Builders has been providing "Structural Solutions" for residential, commercial and industrial properties since 1949. Great Lakes Builders provides Structural Engineering referrals to Homeowners and Building owners that require structural engineering services. Note: The phone numbers listed for Great Lakes Builders on Angi are all office landline phones so do not text us on these numbers.

"Their crew showed up on time, worked steadily on our job, explained what they were doing, got the job done on time, and cleaned up after themselves. Polite and professional the whole way. This is the second time we've used Great Lakes and would happily use them again, as well as recommend them to others."

Scott B on September 2025


"Excellent honest work!"

Nick O on August 2024

Structural Design Corporation (SDC) is a licensed consulting engineering firm located in Libertyville, Illinois. We have been providing engineering & inspection services since 1979. We are a licensed design firm in the state of Illinois.

"Excellent honest work!"

Nick O on August 2024


Avatar for AGGO Construction & Engineering, LLC

AGGO Construction & Engineering, LLC

5.00(
11
)
Approved Pro

AGGO Construction & Engineering, LLC

5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
2020 years of experience

We specialize in Structural Engineering Services and various types of Construction Jobs. Structural Engineering: Structural Design & Inspections Professional Condition Assessments Streamlined Permit Planning Thorough Construction Oversight Construction & General Contracting: Construction Management Structural Framing (Steel) Custom Outdoor Living Spaces (Decks and Pergolas) Specialized Welding and Metal Work Masonry and Concrete Solutions Railing - new fabrication and rehabilitation

"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. "

Nora W on November 2025

We specialize in Structural Engineering Services and various types of Construction Jobs. Structural Engineering: Structural Design & Inspections Professional Condition Assessments Streamlined Permit Planning Thorough Construction Oversight Construction & General Contracting: Construction Management Structural Framing (Steel) Custom Outdoor Living Spaces (Decks and Pergolas) Specialized Welding and Metal Work Masonry and Concrete Solutions Railing - new fabrication and rehabilitation

"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. "

Nora W on November 2025


Faron & Associates, Inc.

5.00(
6
)
Approved Pro

Faron & Associates, Inc.

5.00(
6
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2014 years of experience

We provide structural engineer services for individuals. This typically involves coming out and assessing the condition of a structure and/or its components and determine how to address any structural issues found. It is our mission to provide complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Please understand that we do not do free estimates as we are not contractors. Our work involves coming out to a site, making observations, and taking any required measurements. Following this, an analysis is performed and conclusions are formed to determine how to proceed if any structural deficiencies are determined to be found.

"I had a very good exchange with Michael on ideas and options."

Tim G on October 2023

We provide structural engineer services for individuals. This typically involves coming out and assessing the condition of a structure and/or its components and determine how to address any structural issues found. It is our mission to provide complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Please understand that we do not do free estimates as we are not contractors. Our work involves coming out to a site, making observations, and taking any required measurements. Following this, an analysis is performed and conclusions are formed to determine how to proceed if any structural deficiencies are determined to be found.

"I had a very good exchange with Michael on ideas and options."

Tim G on October 2023


"I've used Domicile Consulting for several homes, after initially finding the company on Angie's List. Dan Cullen is exceptionally knowledgeable, objective and insightful. Prices are reasonable and well worth the investment. Dan takes copious pictures and compiles them in a handy report with recommendations. Highly recommended."

Christopher C on January 2020

CALL or TEXT US at 312.488.1461. Additional contact Owner Mark Hughes at [email protected]; [email protected].

"I've used Domicile Consulting for several homes, after initially finding the company on Angie's List. Dan Cullen is exceptionally knowledgeable, objective and insightful. Prices are reasonable and well worth the investment. Dan takes copious pictures and compiles them in a handy report with recommendations. Highly recommended."

Christopher C on January 2020


"I’ve had home inspections before but I have never been more impressed with the thoroughness, knowledge, and customer service of Dedric Moore from At Home Inspections, Inc. He was communicative, happy to answer all of my questions, and clearly explained the content and implications of his findings"

Robert S on September 2022

Your home is one of your largest investments. Let us help you protect it. Please check out www.athomeinspect.com for more details or to book an appointment.

"I’ve had home inspections before but I have never been more impressed with the thoroughness, knowledge, and customer service of Dedric Moore from At Home Inspections, Inc. He was communicative, happy to answer all of my questions, and clearly explained the content and implications of his findings"

Robert S on September 2022


Avatar for MB Design & Build

MB Design & Build

4.77(
64
)

MB Design & Build

4.77(
64
)
Customers say: True professional
2002 years of experience

MB Design is a boutique architectural design and construction company offering personalized design and construction services tailored to maximize your budget. We specialize in Architectural/Interior design and Full Home renovations.

"If you are deciding between contractors, stop thinking about it and hire Martins, I promise you will be happy with your decision. It is hard for me to put into words what an unbelievable job Martins did with our built ins and how much I enjoyed working with him. My wife and I were nervous because we had never done any sort work on our home and finding Martins was a godsend. In all honesty we are very picky and sometimes hard to work with (just ask our wedding vendors haha) but I cannot think of one thing we would have change in our experience working with Martins and how the built ins turned out. He is very good at what he does and just a very honest guy that you can trust with your project. He cared about how everything would look and function almost more than we did if you can believe that. His attention to detail was impeccable and is exactly what you want when you are making a big change to your living space. Every one of our friends that come over are in awe of our new built ins. Martins is a true artist!"

Vadim V on May 2021

MB Design is a boutique architectural design and construction company offering personalized design and construction services tailored to maximize your budget. We specialize in Architectural/Interior design and Full Home renovations.

"If you are deciding between contractors, stop thinking about it and hire Martins, I promise you will be happy with your decision. It is hard for me to put into words what an unbelievable job Martins did with our built ins and how much I enjoyed working with him. My wife and I were nervous because we had never done any sort work on our home and finding Martins was a godsend. In all honesty we are very picky and sometimes hard to work with (just ask our wedding vendors haha) but I cannot think of one thing we would have change in our experience working with Martins and how the built ins turned out. He is very good at what he does and just a very honest guy that you can trust with your project. He cared about how everything would look and function almost more than we did if you can believe that. His attention to detail was impeccable and is exactly what you want when you are making a big change to your living space. Every one of our friends that come over are in awe of our new built ins. Martins is a true artist!"

Vadim V on May 2021


JSG DESIGN LLC

4.70(
23
)

JSG DESIGN LLC

4.70(
23
)
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

GSJ Design LLC is a company with over 10 years of experience. We subcontract Licensed Architect Barry Greenberg and we offer architectural service under his supervision. We hold Permit Expediting License and we offer permit expediting for repair and replacement work at any building.

"Szczepan designed our balcony deck and applied for a building permit from the City of Chicago. Szczepan was highly knowledgeable and was always there to answer our questions and address our needs. Everything happened promptly and on schedule. Szczepan made the process of applying for a building permit a breeze. We highly recommend him and want to work with him again on future projects."

Geoffrey Z on October 2022

GSJ Design LLC is a company with over 10 years of experience. We subcontract Licensed Architect Barry Greenberg and we offer architectural service under his supervision. We hold Permit Expediting License and we offer permit expediting for repair and replacement work at any building.

"Szczepan designed our balcony deck and applied for a building permit from the City of Chicago. Szczepan was highly knowledgeable and was always there to answer our questions and address our needs. Everything happened promptly and on schedule. Szczepan made the process of applying for a building permit a breeze. We highly recommend him and want to work with him again on future projects."

Geoffrey Z on October 2022


Stan's Welding

4.74(
89
)

Stan's Welding

4.74(
89
)
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

We are a small shop west of Chicago. We do all types of welding jobs. There is no job to big or to small for us. Cost is determined by the job. There is no travel charge. And We offer free estimates, so call us and let us at least bid on your job.

"Stan's did an excellent job communicating about this project and completing the work. They have a very professional office. They responded quickly to my request for a quote, work was scheduled and completed shortly thereafter. The work itself was great, I cannot even tell where they cut and replaced the posts that anchor the railing to the concrete."

Wayne W on March 2019

We are a small shop west of Chicago. We do all types of welding jobs. There is no job to big or to small for us. Cost is determined by the job. There is no travel charge. And We offer free estimates, so call us and let us at least bid on your job.

"Stan's did an excellent job communicating about this project and completing the work. They have a very professional office. They responded quickly to my request for a quote, work was scheduled and completed shortly thereafter. The work itself was great, I cannot even tell where they cut and replaced the posts that anchor the railing to the concrete."

Wayne W on March 2019


Safeguard Waterproofing - Ram Jack Illinois

4.51(
65
)

Safeguard Waterproofing - Ram Jack Illinois

4.51(
65
)
Customers say: Super punctual
1978 years of experience

Full waterproofing and foundation stabilization company that is family owned and operated since 1978. No contractors - we use only our trained employees. Fully licensed, bonded and insured. Dba: Ram Jack of Illinois. Additional fax: (630) 595-5377. Award winning. Uses licensed subcontractors for structural engineering.

"AVOID AT ALL COSTS!!! Here is a list so you can read everything we’ve been through with this company. Spent over $11,000 in 2020 to have interior drain tile and a landing drain connected to a new sump pump Had water enter through the doorway by the drain 3 times since 2020, with the most water coming inside September of 2022 Called Safeguard in September 2022. Safeguard refused to even check the system, sent us a quote for $1,800 more work to “fix us up” without even checking anything on our property Had a 3rd party company out to inspect the drain that Safeguard refused to check. Discovered they breached our contract and connected the drain to village stormwater tiling without our consent or the consent of the village. Have never received as much as an apology. Instead, Safeguard blamed us saying the drain was clogged with leaves, and that is why we flooded. This was disproved by Roto-Rooter. Update as of 3/3/2023 AVOID AT ALL COSTS!!! Here is a list so you can read everything we’ve been through with this company. Spent over $10,800 in 2020 to have interior drain tile and a landing drain connected to a new sump pump. Had water enter through the doorway by the drain 3 times since 2020, with the most water coming inside September of 2022. Called Safeguard in September 2022. Safeguard refused to even check the system, sent us a quote for $1,800 more work to “fix us up” without even checking anything on our property. Had a 3rd party company out to inspect the drain that Safeguard refused to check. Discovered they breached our contract and connected the drain to village stormwater tiling without our consent or the consent of the village. Have never received as much as an apology. Instead, Safeguard blamed us saying the drain was clogged with leaves, and that is why we flooded. This was disproved by Roto-Rooter. The company refused to fix anything and did not respond to requests until I submitted a formal complaint on the BBB website exposing the breach of contract Have spent months (5) trying to come to an agreement we are comfortable with in order to have them out to fix the work. They do say they will repair the work for free, BUT… They tried to get us to waive their liability should the village fine us for the stormwater connection. There will be NO WARRANTY of this free work. So, if the concrete starts breaking a few months after the fix, they’re not liable. They claim they did not connect the drain incorrectly, and they are doing this fix to appease us (even though I have my contact that clearly states what was to be done, and a signed letter from the president stating that they did in fact do something else). As a result, we asked for a simple 1 year work and materials warranty just to ease our fears about something breaking in the future. Their response- WE WILL NOT ALTER THIS CONTRACT. Bob, John and Karen have been nothing but awful to work with. They are argumentative at best. The amount of times sarcasm and ALL CAPS have been used in emails by Karen, as well as the amount of times my husband has been screamed at over the phone or in person by Bob and John are immeasurable. As soon as you write them a check and they finish the work, they’re done. Even if they blatantly breach your contract (like with us), or the work is faulty, I believe they will not fix or stand by anything. They claim they have one of the strongest warranties in the business- I assure you this is a lie. If they do work and it never breaks, consider yourself lucky, because if something goes wrong they will not help you in any way shape or form to solve the problem, in my opinion. Instead, they will blame you as the customer and ignore you until you become too loud to ignore. Do yourself a favor, spend a little bit more money and go somewhere else that actually backs up their work and treats their consumers well. This is not that place. RUN AWAY. The company refused to fix anything and did not respond to requests until I submitted a formal complaint on the BBB website exposing the breach of contract Have spent months (5) trying to come to an agreement we are comfortable with in order to have them out to fix the work They do say they will repair the work for free, BUT… They tried to get us to waive their liability should the village fine us for the stormwater connection There will be NO WARRANTY of this free work. So, if the concrete starts breaking a few months after the fix, they’re not liable They claim they did not connect the drain incorrectly, and they are doing this fix to appease us (even though I have my contact that clearly states what was to be done, and a signed letter from the president stating that they did in fact do something else) As a result, we asked for a simple 1 year work and materials warranty just to ease our fears about something breaking in the future. Their response- WE WILL NOT ALTER THIS CONTRACT Bob, John and Karen have been nothing but awful to work with. They are argumentative at best. The amount of times sarcasm and ALL CAPS have been used in emails by Karen, as well as the amount of times my husband has been screamed at over the phone or in person by Bob and John are immeasurable. As soon as you write them a check and they finish the work, they’re done. Even if they blatantly breach your contract (like with us), or the work is faulty, they will not fix or stand by anything. They claim they have one of the strongest warranties in the business- I assure you this is a lie. If they do work and it never breaks, consider yourself lucky, because if something goes wrong they will not help you in any way shape or form to solve the problem. Instead, they will blame you as the customer and ignore you until you become too loud to ignore. Do yourself a favor, spend a little bit more money and go somewhere else that actually backs up their work and treats their consumers well. This is not that place. RUN AWAY."

Shelley R on March 2023

Full waterproofing and foundation stabilization company that is family owned and operated since 1978. No contractors - we use only our trained employees. Fully licensed, bonded and insured. Dba: Ram Jack of Illinois. Additional fax: (630) 595-5377. Award winning. Uses licensed subcontractors for structural engineering.

"AVOID AT ALL COSTS!!! Here is a list so you can read everything we’ve been through with this company. Spent over $11,000 in 2020 to have interior drain tile and a landing drain connected to a new sump pump Had water enter through the doorway by the drain 3 times since 2020, with the most water coming inside September of 2022 Called Safeguard in September 2022. Safeguard refused to even check the system, sent us a quote for $1,800 more work to “fix us up” without even checking anything on our property Had a 3rd party company out to inspect the drain that Safeguard refused to check. Discovered they breached our contract and connected the drain to village stormwater tiling without our consent or the consent of the village. Have never received as much as an apology. Instead, Safeguard blamed us saying the drain was clogged with leaves, and that is why we flooded. This was disproved by Roto-Rooter. Update as of 3/3/2023 AVOID AT ALL COSTS!!! Here is a list so you can read everything we’ve been through with this company. Spent over $10,800 in 2020 to have interior drain tile and a landing drain connected to a new sump pump. Had water enter through the doorway by the drain 3 times since 2020, with the most water coming inside September of 2022. Called Safeguard in September 2022. Safeguard refused to even check the system, sent us a quote for $1,800 more work to “fix us up” without even checking anything on our property. Had a 3rd party company out to inspect the drain that Safeguard refused to check. Discovered they breached our contract and connected the drain to village stormwater tiling without our consent or the consent of the village. Have never received as much as an apology. Instead, Safeguard blamed us saying the drain was clogged with leaves, and that is why we flooded. This was disproved by Roto-Rooter. The company refused to fix anything and did not respond to requests until I submitted a formal complaint on the BBB website exposing the breach of contract Have spent months (5) trying to come to an agreement we are comfortable with in order to have them out to fix the work. They do say they will repair the work for free, BUT… They tried to get us to waive their liability should the village fine us for the stormwater connection. There will be NO WARRANTY of this free work. So, if the concrete starts breaking a few months after the fix, they’re not liable. They claim they did not connect the drain incorrectly, and they are doing this fix to appease us (even though I have my contact that clearly states what was to be done, and a signed letter from the president stating that they did in fact do something else). As a result, we asked for a simple 1 year work and materials warranty just to ease our fears about something breaking in the future. Their response- WE WILL NOT ALTER THIS CONTRACT. Bob, John and Karen have been nothing but awful to work with. They are argumentative at best. The amount of times sarcasm and ALL CAPS have been used in emails by Karen, as well as the amount of times my husband has been screamed at over the phone or in person by Bob and John are immeasurable. As soon as you write them a check and they finish the work, they’re done. Even if they blatantly breach your contract (like with us), or the work is faulty, I believe they will not fix or stand by anything. They claim they have one of the strongest warranties in the business- I assure you this is a lie. If they do work and it never breaks, consider yourself lucky, because if something goes wrong they will not help you in any way shape or form to solve the problem, in my opinion. Instead, they will blame you as the customer and ignore you until you become too loud to ignore. Do yourself a favor, spend a little bit more money and go somewhere else that actually backs up their work and treats their consumers well. This is not that place. RUN AWAY. The company refused to fix anything and did not respond to requests until I submitted a formal complaint on the BBB website exposing the breach of contract Have spent months (5) trying to come to an agreement we are comfortable with in order to have them out to fix the work They do say they will repair the work for free, BUT… They tried to get us to waive their liability should the village fine us for the stormwater connection There will be NO WARRANTY of this free work. So, if the concrete starts breaking a few months after the fix, they’re not liable They claim they did not connect the drain incorrectly, and they are doing this fix to appease us (even though I have my contact that clearly states what was to be done, and a signed letter from the president stating that they did in fact do something else) As a result, we asked for a simple 1 year work and materials warranty just to ease our fears about something breaking in the future. Their response- WE WILL NOT ALTER THIS CONTRACT Bob, John and Karen have been nothing but awful to work with. They are argumentative at best. The amount of times sarcasm and ALL CAPS have been used in emails by Karen, as well as the amount of times my husband has been screamed at over the phone or in person by Bob and John are immeasurable. As soon as you write them a check and they finish the work, they’re done. Even if they blatantly breach your contract (like with us), or the work is faulty, they will not fix or stand by anything. They claim they have one of the strongest warranties in the business- I assure you this is a lie. If they do work and it never breaks, consider yourself lucky, because if something goes wrong they will not help you in any way shape or form to solve the problem. Instead, they will blame you as the customer and ignore you until you become too loud to ignore. Do yourself a favor, spend a little bit more money and go somewhere else that actually backs up their work and treats their consumers well. This is not that place. RUN AWAY."

Shelley R on March 2023

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Structural Engineering questions, answered by experts

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.

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.

Signs of structural damage include foundation cracks, roof leaks, bouncy floors, crumbling concrete, and cracked or leaning chimneys. Structural damage can make itself apparent in various ways, and sometimes, there may not be obvious signs. Inspect your foundation and roof annually to stay ahead of potentially serious structural problems. 

Yes, unresolved damage can decrease property integrity and market value.

Yes. Foundation walls are always load-bearing.

The Westchester, IL homeowners’ guide to structural engineering services

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