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Engineer structural pros in Downey
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.
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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
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
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
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 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
Alpha Omega is a full engineering firm and full service provider of residential and commercial construction with a reputation for complete customer satisfaction and on time, on budget completion of a wide variety of construction projects. With years of experience serving our clients throughout Inland Empire area, Alpha Omega has developed a reputation for intelligent design, creative problem solving, and an uncompromising commitment to professionalism, and integrity, that has made us one of the areas most respected and in demand general contractors and engineering firm. Whether working directly with our end customers, or contracted through an intermediary architectural engineering firm, we have the capability to faithfully execute your plans or provide design and build services as required.
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Nissa G on May 2025
Alpha Omega is a full engineering firm and full service provider of residential and commercial construction with a reputation for complete customer satisfaction and on time, on budget completion of a wide variety of construction projects. With years of experience serving our clients throughout Inland Empire area, Alpha Omega has developed a reputation for intelligent design, creative problem solving, and an uncompromising commitment to professionalism, and integrity, that has made us one of the areas most respected and in demand general contractors and engineering firm. Whether working directly with our end customers, or contracted through an intermediary architectural engineering firm, we have the capability to faithfully execute your plans or provide design and build services as required.
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Nissa G on May 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
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
Your Trusted Local Landscaping Experts 🌿 We provide comprehensive landscaping services, from design and installation to ongoing maintenance. As a family-owned and locally operated business with over 25 years of experience, we take pride in handling every project in-house—never subcontracting—to ensure the highest quality and attention to detail. ✅ Licensed, Insured & Bonded ✅ Workman’s Compensation Coverage ✅ Free Estimates on All Services Get in touch today by phone or email—we’d love to bring your landscaping vision to life!
"These people will not reply after I took the time to send photos and explain the job. THEY DO NOT WANT TO WORK"
Andre S on June 2024
Your Trusted Local Landscaping Experts 🌿 We provide comprehensive landscaping services, from design and installation to ongoing maintenance. As a family-owned and locally operated business with over 25 years of experience, we take pride in handling every project in-house—never subcontracting—to ensure the highest quality and attention to detail. ✅ Licensed, Insured & Bonded ✅ Workman’s Compensation Coverage ✅ Free Estimates on All Services Get in touch today by phone or email—we’d love to bring your landscaping vision to life!
"These people will not reply after I took the time to send photos and explain the job. THEY DO NOT WANT TO WORK"
Andre S on June 2024
We are a full design build firm, specializing in kitchen, bathroom, and complete home remodeling. This also includes additions and ADU's! In the process of creating your dream home, our goal is to provide you with the most up-to-date ideas and solutions. A "one stop shop" for all your remodeling needs. Our team builds and remodels homes with various styles such as: traditional, Spanish, modern, contemporary and beyond. Call us today to get your in-home FREE consultation! Hand in Hand we will make this experience unique and successful. So let's make it Better together! Better Together Builders Lic#1047689 818-858-9840 Info@bettertogetherbuilders.com **Please note: Due to high demand, we are no longer able to do projects that are under a budget of $7000.**
"Stuff happens, and this business knows how to handle it! We had a stain on the ceiling. Ofri from BTB came over and turned on the water from the upstairs bathtub and then the shower stall. The ceiling became moist after the shower was turned on. Ofri then came back with a plumber. He turned on the upstairs bathtub. After they left, water dripped from the ceiling. Ofri had the plumber immediately send over a team for a service call. They broke open a hole in the ceiling and found that a pipe leading to the bathtub was so rusty it had holes. They took videos showing other pipes leading to the bathtub were also very rusty. While the team was still there, Ofri gave us prices, sent over the paperwork and the pipes were replaced within a of couple hours. Fabulous! Ofri had thought it would take a lot longer to complete the plumbing work. Therefore, her pricing did not align with the actual work performed. She brought in Alon, who substantially reduced the price to our satisfaction. Their responsiveness and reasonableness earned them my highest rating. Thank you Ofri, Alon and the BTB team!"
Barbara R on January 2025
We are a full design build firm, specializing in kitchen, bathroom, and complete home remodeling. This also includes additions and ADU's! In the process of creating your dream home, our goal is to provide you with the most up-to-date ideas and solutions. A "one stop shop" for all your remodeling needs. Our team builds and remodels homes with various styles such as: traditional, Spanish, modern, contemporary and beyond. Call us today to get your in-home FREE consultation! Hand in Hand we will make this experience unique and successful. So let's make it Better together! Better Together Builders Lic#1047689 818-858-9840 Info@bettertogetherbuilders.com **Please note: Due to high demand, we are no longer able to do projects that are under a budget of $7000.**
"Stuff happens, and this business knows how to handle it! We had a stain on the ceiling. Ofri from BTB came over and turned on the water from the upstairs bathtub and then the shower stall. The ceiling became moist after the shower was turned on. Ofri then came back with a plumber. He turned on the upstairs bathtub. After they left, water dripped from the ceiling. Ofri had the plumber immediately send over a team for a service call. They broke open a hole in the ceiling and found that a pipe leading to the bathtub was so rusty it had holes. They took videos showing other pipes leading to the bathtub were also very rusty. While the team was still there, Ofri gave us prices, sent over the paperwork and the pipes were replaced within a of couple hours. Fabulous! Ofri had thought it would take a lot longer to complete the plumbing work. Therefore, her pricing did not align with the actual work performed. She brought in Alon, who substantially reduced the price to our satisfaction. Their responsiveness and reasonableness earned them my highest rating. Thank you Ofri, Alon and the BTB team!"
Barbara R on January 2025
Providing award winning services in landscaping and masonry. We have over 17 years of experience in Landscape Renovations. We specialize in Xeriscapes, Patios, Hardscapes and more. We take your old landscape and give it a fresh new look with an all new design from top to bottom.
"Fernando was prompt in reaching out and even got the job done a day earlier than promised. Work was done well and price was reasonable. I will hire again."
Matthew D on March 2025
Providing award winning services in landscaping and masonry. We have over 17 years of experience in Landscape Renovations. We specialize in Xeriscapes, Patios, Hardscapes and more. We take your old landscape and give it a fresh new look with an all new design from top to bottom.
"Fernando was prompt in reaching out and even got the job done a day earlier than promised. Work was done well and price was reasonable. I will hire again."
Matthew D on March 2025
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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