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Engineer structural pros in Downey

Avatar for JZ Structural, Inc.
JZ Structural, Inc.
205 S Chapel Ave Suite D1
5.00(
2
)
Approved Pro
JZ Structural, Inc.
205 S Chapel Ave Suite D1
5.00(
2
)
Approved Pro
Customers say: Quick response
15 years of experience
Free onsite estimate

JZ Structural, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"N/A"

Pablo G on April 2022

JZ Structural, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"N/A"

Pablo G on April 2022


Avatar for Nick Engineering, Inc.
Nick Engineering, Inc.
3842 Hendrix St
4.94(
17
)
Approved Pro
Nick Engineering, Inc.
3842 Hendrix St
4.94(
17
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
12 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Sam did a fantastic job in designing the structural engineering calculations for my new construction project in Santa Ana. He was very honest and recommended the all right things to create a strong foundation, which helped with an outstanding outcome! Sam was very helpful and responsive through the whole process especially fulfilling all the city?s requirements. I am extremely happy with my experience with Sam at Nick Engineering and will definitely use his services again in the future."

Shorouq S on December 2024

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Sam did a fantastic job in designing the structural engineering calculations for my new construction project in Santa Ana. He was very honest and recommended the all right things to create a strong foundation, which helped with an outstanding outcome! Sam was very helpful and responsive through the whole process especially fulfilling all the city?s requirements. I am extremely happy with my experience with Sam at Nick Engineering and will definitely use his services again in the future."

Shorouq S on December 2024


FMH Engineering, Inc.
410 Goddard, Suite 200
5.00(
12
)
Approved Pro
FMH Engineering, Inc.
410 Goddard, Suite 200
5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

At FMH Engineering, Structural Design, we will make your dreams go from paper to reality. Your satisfaction is our number one priority. We are detail oriented and love what we do. The design and engineering we do each day is our ultimate passion and it shows in every completed project.

"Fady is great! Very professional and fast service! He was very responsive and helpful with our plans for a custom home. Very easy to work with and has a lot of great suggestions. Highly recommended!"

Daniel G on April 2021

At FMH Engineering, Structural Design, we will make your dreams go from paper to reality. Your satisfaction is our number one priority. We are detail oriented and love what we do. The design and engineering we do each day is our ultimate passion and it shows in every completed project.

"Fady is great! Very professional and fast service! He was very responsive and helpful with our plans for a custom home. Very easy to work with and has a lot of great suggestions. Highly recommended!"

Daniel G on April 2021


Avatar for TY Engineering and Design, Inc.
TY Engineering and Design, Inc.
952 Manhattan Beach Boulevard, Suite 260
4.92(
79
)
Approved Pro
TY Engineering and Design, Inc.
952 Manhattan Beach Boulevard, Suite 260
4.92(
79
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
15 years of experience

TY Engineering And Design, Inc., provides quality engineering and design services. With over 11 years of experience our professionals have the knowledge and skills to provide high quality residential and commercial services. Give us a call at (310) 935-0060 or visit www.ty-eng.com for a quote on your next project.

"I've had the recent good fortune to work with Tolga on renovation projects in Los Angeles and Manhattan Beach for which I am the Architect. The success of renovation work relies heavily on collaborative and creative structural engineering in order to realize interior and exterior architecture goals. Tolga instinctively understood my design goals and in a very professional manner he crafted solutions to bring them to reality. Many thanks Tolga. I look forward to our next collaboration."

Miguel E on November 2023

TY Engineering And Design, Inc., provides quality engineering and design services. With over 11 years of experience our professionals have the knowledge and skills to provide high quality residential and commercial services. Give us a call at (310) 935-0060 or visit www.ty-eng.com for a quote on your next project.

"I've had the recent good fortune to work with Tolga on renovation projects in Los Angeles and Manhattan Beach for which I am the Architect. The success of renovation work relies heavily on collaborative and creative structural engineering in order to realize interior and exterior architecture goals. Tolga instinctively understood my design goals and in a very professional manner he crafted solutions to bring them to reality. Many thanks Tolga. I look forward to our next collaboration."

Miguel E on November 2023


AAA Engineering Design
3130 East Willow Street
4.63(
4
)
Approved Pro
AAA Engineering Design
3130 East Willow Street
4.63(
4
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 years of experience

With over two decades of experience, we specialize in residential and commercial structures requiring timber, steel, concrete, and CMU design. Our design approach is to maximize safety while also maintaining proper constructability and construction cost. Our commercial projects span from shopping centers, office buildings, retail stores, and everything in between to meet our client's needs. Whether it's remodeling a space or new builds, our design approach will ensure the structural aspect will meet any city requirements in California, while also providing a quick turnaround to meet any deadline. Give us a call, text or email today, and let us get started!

"-It was about 2 weeks ago that I met Mr Sal and he cam to see the project site as well to take the measurements required next day later he immediately scheduled an appointment with my local city of Westminster to find out what was exactly requested soon after he left it took only 3 days for him to develop all the structural calculations for the mother-in low quarter and the 2 car garage I was extremely pleased for his professionalism and fast expedited work. The quotes that I was provided from him were by far quite fair than the other I had interviewed prior of meeting him. Mr Sal truthfully went the extra mile to make it happen for what I was looking for. I therefore would Highly recommend to anyone in need of such works to look for Mr. Sal from AAA Engineering Design, you will never be disappointed. I want everyone to know that he is truly a great asset to our community. Thank you John Trimarco"

John T on April 2018

With over two decades of experience, we specialize in residential and commercial structures requiring timber, steel, concrete, and CMU design. Our design approach is to maximize safety while also maintaining proper constructability and construction cost. Our commercial projects span from shopping centers, office buildings, retail stores, and everything in between to meet our client's needs. Whether it's remodeling a space or new builds, our design approach will ensure the structural aspect will meet any city requirements in California, while also providing a quick turnaround to meet any deadline. Give us a call, text or email today, and let us get started!

"-It was about 2 weeks ago that I met Mr Sal and he cam to see the project site as well to take the measurements required next day later he immediately scheduled an appointment with my local city of Westminster to find out what was exactly requested soon after he left it took only 3 days for him to develop all the structural calculations for the mother-in low quarter and the 2 car garage I was extremely pleased for his professionalism and fast expedited work. The quotes that I was provided from him were by far quite fair than the other I had interviewed prior of meeting him. Mr Sal truthfully went the extra mile to make it happen for what I was looking for. I therefore would Highly recommend to anyone in need of such works to look for Mr. Sal from AAA Engineering Design, you will never be disappointed. I want everyone to know that he is truly a great asset to our community. Thank you John Trimarco"

John T on April 2018


Avatar for RCS Engineering Services
RCS Engineering Services
2335 East Colorado Boulebard, Unit 115-170
5.00(
3
)
Approved Pro
RCS Engineering Services
2335 East Colorado Boulebard, Unit 115-170
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.

"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"

Constantine P on January 2020

Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.

"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"

Constantine P on January 2020


Peter T. Erdelyi & Associates, Inc.
2999 Overland Ave STE 103
4.52(
83
)
Approved Pro
Peter T. Erdelyi & Associates, Inc.
2999 Overland Ave STE 103
4.52(
83
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
72 local quotes requested

Peter T. Erdelyi and his office of 15 employees have designed thousands of residential and commercial projects over the past 37 years - remodels, additions and new buildings

"Quoted one price and kept asking for more money. They only came to the house once, and any changes I had to make (because they didn't have all the information) they changed me more."

Dominic M on July 2023

Peter T. Erdelyi and his office of 15 employees have designed thousands of residential and commercial projects over the past 37 years - remodels, additions and new buildings

"Quoted one price and kept asking for more money. They only came to the house once, and any changes I had to make (because they didn't have all the information) they changed me more."

Dominic M on July 2023


DeGati Construction
New on HomeAdvisorNew on Angi
Approved Pro
DeGati Construction
New on AngiNew on HomeAdvisor
Approved Pro
359 local quotes requested
21 years of experience

DeGati Construction - Your Trusted Remodeling Experts in Los Angeles. Transform your home with our top-notch remodeling services. Contact us today!

DeGati Construction - Your Trusted Remodeling Experts in Los Angeles. Transform your home with our top-notch remodeling services. Contact us today!


Avatar for HavenHub Home Services
HavenHub Home Services
3 Corporate Plaza Dr
4.90(
42
)
Approved Pro
HavenHub Home Services
3 Corporate Plaza Dr
4.90(
42
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
7980 local quotes requested

At HavenHub, we're more than just a home service company – we're your trusted partner in creating havens of comfort and joy. Specializing in several verticals such as Landscaping, Roofing and HVAC solutions, we bring expertise and dedication to every project we undertake. What sets us apart is our commitment to putting our customers first. From the moment you engage us, you'll receive a world class experience with us. Whether it's transforming your outdoor space into a lush oasis or ensuring your indoor climate is just right, we're here to make it happen. At HavenHub, your satisfaction and peace of mind are our top priorities, and we're honored to be a part of your home journey. Welcome to the HavenHub family, where your home is our passion.

"Exceptional service, high quality work and a fair price."

Peter S on March 2025

At HavenHub, we're more than just a home service company – we're your trusted partner in creating havens of comfort and joy. Specializing in several verticals such as Landscaping, Roofing and HVAC solutions, we bring expertise and dedication to every project we undertake. What sets us apart is our commitment to putting our customers first. From the moment you engage us, you'll receive a world class experience with us. Whether it's transforming your outdoor space into a lush oasis or ensuring your indoor climate is just right, we're here to make it happen. At HavenHub, your satisfaction and peace of mind are our top priorities, and we're honored to be a part of your home journey. Welcome to the HavenHub family, where your home is our passion.

"Exceptional service, high quality work and a fair price."

Peter S on March 2025


Avatar for AGA Construction Inc
AGA Construction Inc
18375 Ventura Blvd
4.64(
143
)
Approved Pro
AGA Construction Inc
18375 Ventura Blvd
4.64(
143
)
Approved Pro
Customers say: Quality work
4028 local quotes requested
19 years of experience

FREE estimates and 10% off for Angi's List members! A.G.A Construction, Inc. is a licensed, bonded and insured, full-service construction company. We offer services in both residential and commercial remodeling including, but not limited to, new construction, room additions, kitchen and bathroom remodeling. Our mission at A.G.A Construction is to provide excellent customer satisfaction and top-quality work. We work hard to maintain high standards of exceptional customer service and superiority that has become expected of us over the years. Whatever your remodeling needs are, we take the necessary time to discuss with you the wide variety of options, products, styles, specification and your desired budget available in order to make your vision a reality. When working with our team you can be sure that your remodeling project will exceed your expectations. With any remodeling job, a project is only as good as its foundation. The same is true for our company, which is built on a foundation of trust and strong relationships with our clients. As our saying goes “When we are done, you will be happy, and until you are happy, we are not done.”

"We started the process of building our detached ADU at the beginning of 2022. We hired an Architect, who drew up a plan to build a 1200 sq ft, 3 bedroom 2.5 bathroom house. After 14 months of waiting and addressing revisions required by the Los Angeles Department of Building and Safety we got our permit in “Ready to Issue” status. While waiting for city approval, we all started looking for a fair, reliable and honest contractor who would do good/solid construction. We started the process of interviewing contractors and getting bids for the job. After several meetings and several bids, we met Micky Kanian with “AGA Construction”. We found Micky on Yelp. One of his references took us thru an ADU that Micky and team built for his elderly mother-in-law to live in. This family could not say enough good things about Micky and team. They took us thru the property and explained their experience in great detail. We saw another beautiful AGA project, a 5k sq ft + project that was in progress and really knew that day that we’d found our contractor. We weren’t quite ready to pull the trigger for personal reasons, so we put the project on hold. Meanwhile, we continued to collect a couple of other bids that were already in progress. During this process, AGA kept in touch with us. They checked in every few weeks or so, without being pushy or intrusive. After a delay of about 9 months, we decided to move forward with AGA construction. No one is a tougher critic than me. I was dreading this project because of the amount of stress that I knew we’d be under. Both financially and mentally. We’ve all heard and/or lived thru the horror of a construction project gone wrong. I won’t bury the lead any further. We love our ADU!!!!! We started the project on Jan 31st of 2024. We were told that the project would take 6-8 months. We lost the first 6 weeks or so with the heavy rains from last year, but even with that delay, we were mostly done with the project by the middle of August. We ran into the “expected” unknowns and surprises – all dealt with fairly and quickly by Micky and team. I would like to call out Joachin who was amazing. We always felt like we were in the best of qualified hands during this entire process. All inspections were signed off, the last checks were written, and we now have a gorgeous new home behind the main house on that property. We were so happy with the project and trusted Micky and Joachin so much, that we immediately launched a second project of gutting and renovating a very large master bathroom for my In-Laws. That job started on September 23rd and was done the first or second week of November as promised. It would’ve been done sooner, but we had a little “client indecision” that cost us about a week or two. All in all, I would highly recommend Micky and his crew, and we plan to use them for as long as they are in business or until my family and I run out of projects."

howard w on February 2025

FREE estimates and 10% off for Angi's List members! A.G.A Construction, Inc. is a licensed, bonded and insured, full-service construction company. We offer services in both residential and commercial remodeling including, but not limited to, new construction, room additions, kitchen and bathroom remodeling. Our mission at A.G.A Construction is to provide excellent customer satisfaction and top-quality work. We work hard to maintain high standards of exceptional customer service and superiority that has become expected of us over the years. Whatever your remodeling needs are, we take the necessary time to discuss with you the wide variety of options, products, styles, specification and your desired budget available in order to make your vision a reality. When working with our team you can be sure that your remodeling project will exceed your expectations. With any remodeling job, a project is only as good as its foundation. The same is true for our company, which is built on a foundation of trust and strong relationships with our clients. As our saying goes “When we are done, you will be happy, and until you are happy, we are not done.”

"We started the process of building our detached ADU at the beginning of 2022. We hired an Architect, who drew up a plan to build a 1200 sq ft, 3 bedroom 2.5 bathroom house. After 14 months of waiting and addressing revisions required by the Los Angeles Department of Building and Safety we got our permit in “Ready to Issue” status. While waiting for city approval, we all started looking for a fair, reliable and honest contractor who would do good/solid construction. We started the process of interviewing contractors and getting bids for the job. After several meetings and several bids, we met Micky Kanian with “AGA Construction”. We found Micky on Yelp. One of his references took us thru an ADU that Micky and team built for his elderly mother-in-law to live in. This family could not say enough good things about Micky and team. They took us thru the property and explained their experience in great detail. We saw another beautiful AGA project, a 5k sq ft + project that was in progress and really knew that day that we’d found our contractor. We weren’t quite ready to pull the trigger for personal reasons, so we put the project on hold. Meanwhile, we continued to collect a couple of other bids that were already in progress. During this process, AGA kept in touch with us. They checked in every few weeks or so, without being pushy or intrusive. After a delay of about 9 months, we decided to move forward with AGA construction. No one is a tougher critic than me. I was dreading this project because of the amount of stress that I knew we’d be under. Both financially and mentally. We’ve all heard and/or lived thru the horror of a construction project gone wrong. I won’t bury the lead any further. We love our ADU!!!!! We started the project on Jan 31st of 2024. We were told that the project would take 6-8 months. We lost the first 6 weeks or so with the heavy rains from last year, but even with that delay, we were mostly done with the project by the middle of August. We ran into the “expected” unknowns and surprises – all dealt with fairly and quickly by Micky and team. I would like to call out Joachin who was amazing. We always felt like we were in the best of qualified hands during this entire process. All inspections were signed off, the last checks were written, and we now have a gorgeous new home behind the main house on that property. We were so happy with the project and trusted Micky and Joachin so much, that we immediately launched a second project of gutting and renovating a very large master bathroom for my In-Laws. That job started on September 23rd and was done the first or second week of November as promised. It would’ve been done sooner, but we had a little “client indecision” that cost us about a week or two. All in all, I would highly recommend Micky and his crew, and we plan to use them for as long as they are in business or until my family and I run out of projects."

howard w on February 2025

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Engineer structurals FAQs

You should bring in a structural engineer any time you’re adding or removing something that carries weight—think new construction, a major remodel, or moving a load‑bearing wall. Call one during a real‑estate deal, after storm damage, or when you spot cracks in the foundation, beams, or chimney. An engineer’s report confirms that the structure is sound and tells your contractor exactly what fixes—or reinforcements—are needed to keep the home safe long‑term.

Who you hire depends on the task. Hire an architect to shape the look and layout of your home. Call a structural engineer to verify that load‑bearing elements—walls, beams, foundation—can handle the plan or to diagnose structural issues. Bring in a home inspector for a broad health check during a sale, after a storm, or for an appraisal. Matching the pro to the job keeps costs down and problems in check.

During the visit, the engineer checks your foundation, framing, walls, roof, and insulation, then compares what they see to any existing plans. If the structure matches the specs, you get the all‑clear; if not, the engineer outlines the fixes. Their sign‑off is what lets the next phase of work move forward, so expect clear notes on what’s solid and what needs attention.

Civil engineering is the broad field that covers roads, bridges, and other infrastructure. Structural engineers focus on the loads and forces inside a building or bridge—foundations, beams, and walls—while mechanical engineers design and keep power systems running, from elevators and turbines to HVAC equipment. In short, civil handles the big picture, structural makes sure it stands up, and mechanical keeps everything moving.

Most structural engineers offer free quotes. They’ll look at your home’s size and the scope of work to decide whether a flat fee or hourly rate makes sense. Simple inspections are usually priced by square footage; bigger, more complex jobs require a site visit and a detailed written estimate. Getting that number up front lets you nail down a budget before any drawings or inspections begin.

The engineer reviews every load‑bearing part of the home—floors, foundation, walls, roof, and major beams—along with insulation and the soil around the structure. They also factor in local weather risks and nearby water sources. The goal is to confirm that the materials and construction can handle day‑to‑day loads and extreme events alike, and to flag any spots that need reinforcement.

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