Get matched with top structural engineers in Castaic, CA
There are 8 highly-rated local structural engineers.
Verified Reviews for Structural Engineering pros in Castaic, CA
*The Angi rating for Structural Engineering companies in Castaic, CA 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 Castaic, CA 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 May 14, 2025
Structural engineers in Castaic
Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.
"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."
Robert N on September 2024
Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.
"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."
Robert N on September 2024
Established in 1986. Specializes in design and structural engineering for residential and commercial projects, as well as in Project Management. Licensed in the State of California.
"Miguel is an amazing structural engineer and architect! He did the remodeling plans for our townhome in Marina Del Rey and we were very satisfied. Our HOA gave us a lot of trouble with our plans and they constantly needed to be revised and Miguel revised them speedily and efficiently. He was also very professional and patient with all of our changing needs. He explained things in a calm and informative way so we can fully understand what we can and can't do. He's extremely knowledgeable of city codes and policies. Highly recommended! Thanks Miguel!"
Cristian R on October 2023
Established in 1986. Specializes in design and structural engineering for residential and commercial projects, as well as in Project Management. Licensed in the State of California.
"Miguel is an amazing structural engineer and architect! He did the remodeling plans for our townhome in Marina Del Rey and we were very satisfied. Our HOA gave us a lot of trouble with our plans and they constantly needed to be revised and Miguel revised them speedily and efficiently. He was also very professional and patient with all of our changing needs. He explained things in a calm and informative way so we can fully understand what we can and can't do. He's extremely knowledgeable of city codes and policies. Highly recommended! Thanks Miguel!"
Cristian R on October 2023
With over 20 years experience we have developed a valuable skill set providing solutions in the performance motorsports, studio, commercial, residential and manufacturing industries. Everything from restoring 60+ year old vehicles, designing and manufacturing high end parts for luxury brands like Mercedes and Porsche to designing/building massive structural and esthetic components for industrial and residential applications. I will offer expertise and practice in tube and sheet metal forming related to the off road race industries as well as 3D scanning and CAD models for all CNC operations and all welding processes on all materials and applications. I have a large network of friends, clients, partners and associates that have proven valuable with an array of skills and expert level knowledge. Our expertise isn't limited to design, engineering and fabrication. We will also offer a broad range of brokering, consulting, training as well as maintenance, mobile technician and installation services.
With over 20 years experience we have developed a valuable skill set providing solutions in the performance motorsports, studio, commercial, residential and manufacturing industries. Everything from restoring 60+ year old vehicles, designing and manufacturing high end parts for luxury brands like Mercedes and Porsche to designing/building massive structural and esthetic components for industrial and residential applications. I will offer expertise and practice in tube and sheet metal forming related to the off road race industries as well as 3D scanning and CAD models for all CNC operations and all welding processes on all materials and applications. I have a large network of friends, clients, partners and associates that have proven valuable with an array of skills and expert level knowledge. Our expertise isn't limited to design, engineering and fabrication. We will also offer a broad range of brokering, consulting, training as well as maintenance, mobile technician and installation services.
At Quality Fiberglass we Offer Repair, Restoration, and Fabrication services on any RV, Boat, or Autombile along side many Home Improvement and Repair services. Home Improvement and Repair Services ~ Pool and Spa Repair and Resurfacing ~ Vinyl Pool Liner Instalation and Replacement ~ Pool / Water Slide Repair, Resurfacing, and Custom Fabrication ~ Custom Fountains, Fish Tanks, and Koi Ponds ~ Composit and Fiberglass Furniture, Sculpture, and Art Repair Custom Fabrication ~ Bathroom and Closet Remodels and Custom Fabrication We are a small family owned and operated business with three generations of trade experience and expertise. Our goal is to provide our community with exceptional products that have lasting value. We attain this goal by providing services, sourcing materials, and building products with Integrity, Excellence, and Creativity.
At Quality Fiberglass we Offer Repair, Restoration, and Fabrication services on any RV, Boat, or Autombile along side many Home Improvement and Repair services. Home Improvement and Repair Services ~ Pool and Spa Repair and Resurfacing ~ Vinyl Pool Liner Instalation and Replacement ~ Pool / Water Slide Repair, Resurfacing, and Custom Fabrication ~ Custom Fountains, Fish Tanks, and Koi Ponds ~ Composit and Fiberglass Furniture, Sculpture, and Art Repair Custom Fabrication ~ Bathroom and Closet Remodels and Custom Fabrication We are a small family owned and operated business with three generations of trade experience and expertise. Our goal is to provide our community with exceptional products that have lasting value. We attain this goal by providing services, sourcing materials, and building products with Integrity, Excellence, and Creativity.
LSK Engineering Solutions provides structural design and geotechnical engineering consulting services, with a reputation for exceptional value, reliability and integrity.
LSK Engineering Solutions provides structural design and geotechnical engineering consulting services, with a reputation for exceptional value, reliability and integrity.
At Struct 1 Builders Inc, we specialize in providing top-notch general contracting services tailored to meet the diverse needs of our clients. With a keen focus on excellence and efficiency, we offer a comprehensive range of services to ensure that every project is completed to the highest standards of quality and craftsmanship. Specialties and Overview of Services: Our specialties encompass a wide array of construction and renovation projects, including but not limited to: Residential Construction: From custom home builds to renovations and remodeling, we bring expertise and innovation to every residential project we undertake. Renovations and Remodeling: Whether it's updating a kitchen, bathroom, or entire property, our renovation and remodeling services breathe new life into existing spaces, enhancing both functionality and aesthetics. Interior and Exterior Finishing: We offer expertise in interior and exterior finishing touches, ensuring that every detail, from paint to flooring, contributes to the overall appeal and durability of the structure. Value Proposition and Competitive Advantage: At Struct 1 Builders Inc, our commitment to excellence sets us apart from the competition. Here's what makes us stand out: Quality Craftsmanship: We take pride in our workmanship, delivering results that exceed expectations and stand the test of time. Client-Centric Approach: We prioritize open communication and collaboration with our clients, ensuring that their vision is realized and their needs are met at every stage of the project. At Struct 1 Builders Inc, we don't just build structures; we build relationships. Trust us to bring your vision to life with professionalism, integrity, and unparalleled expertise.
At Struct 1 Builders Inc, we specialize in providing top-notch general contracting services tailored to meet the diverse needs of our clients. With a keen focus on excellence and efficiency, we offer a comprehensive range of services to ensure that every project is completed to the highest standards of quality and craftsmanship. Specialties and Overview of Services: Our specialties encompass a wide array of construction and renovation projects, including but not limited to: Residential Construction: From custom home builds to renovations and remodeling, we bring expertise and innovation to every residential project we undertake. Renovations and Remodeling: Whether it's updating a kitchen, bathroom, or entire property, our renovation and remodeling services breathe new life into existing spaces, enhancing both functionality and aesthetics. Interior and Exterior Finishing: We offer expertise in interior and exterior finishing touches, ensuring that every detail, from paint to flooring, contributes to the overall appeal and durability of the structure. Value Proposition and Competitive Advantage: At Struct 1 Builders Inc, our commitment to excellence sets us apart from the competition. Here's what makes us stand out: Quality Craftsmanship: We take pride in our workmanship, delivering results that exceed expectations and stand the test of time. Client-Centric Approach: We prioritize open communication and collaboration with our clients, ensuring that their vision is realized and their needs are met at every stage of the project. At Struct 1 Builders Inc, we don't just build structures; we build relationships. Trust us to bring your vision to life with professionalism, integrity, and unparalleled expertise.
We are Experts in home remodeling, improvements, landscape, roofing and room additions – We are a licensed, insured, and bonded remodeling and construction company, working exclusively in home remodeling and improvements. We are a team of experienced hardworking people, project managers, engineers, architects, and designers ready to work for you. We aim to produce excellent workmanship, top quality labor, and advanced integration and affordable services that meet our clients‘ demands. Top Pros Construction provides services to all inside and outside remodeling needs on the kitchen, bathroom, room addition (ADU), and any custom remodeling you may need.
"We had a roof leak just two years after having a new roof installed by a shady contractor. I hired another company to fix it, but after two failed attempts—and a 3-month warranty—they refused to come back, even though the leak was never properly repaired. Frustrated, I turned to Angi and found Top Pros Construction. When I called, I was immediately impressed by their professionalism. They asked detailed questions about our roof—far more than anyone else had—which gave me confidence that they truly understood what they were doing. Unfortunately, we were outside their service area, but they still took the time to look at photos and offer valuable guidance to help me figure out what was going wrong. That kind of care and expertise—without expecting anything in return—really stood out to me. I ended up hiring someone local to do the actual repair, but I felt compelled to leave this review because of the outstanding service I received. Thank you, Top Pros Construction, for going above and beyond!"
Rochelle R on May 2025
We are Experts in home remodeling, improvements, landscape, roofing and room additions – We are a licensed, insured, and bonded remodeling and construction company, working exclusively in home remodeling and improvements. We are a team of experienced hardworking people, project managers, engineers, architects, and designers ready to work for you. We aim to produce excellent workmanship, top quality labor, and advanced integration and affordable services that meet our clients‘ demands. Top Pros Construction provides services to all inside and outside remodeling needs on the kitchen, bathroom, room addition (ADU), and any custom remodeling you may need.
"We had a roof leak just two years after having a new roof installed by a shady contractor. I hired another company to fix it, but after two failed attempts—and a 3-month warranty—they refused to come back, even though the leak was never properly repaired. Frustrated, I turned to Angi and found Top Pros Construction. When I called, I was immediately impressed by their professionalism. They asked detailed questions about our roof—far more than anyone else had—which gave me confidence that they truly understood what they were doing. Unfortunately, we were outside their service area, but they still took the time to look at photos and offer valuable guidance to help me figure out what was going wrong. That kind of care and expertise—without expecting anything in return—really stood out to me. I ended up hiring someone local to do the actual repair, but I felt compelled to leave this review because of the outstanding service I received. Thank you, Top Pros Construction, for going above and beyond!"
Rochelle R on May 2025
InnoDez is a California-based company that offers professional design and engineering services for its clients in commercial, residential, and industrial projects. InnoDez is a passionate group of architects & engineers with over 15 years of experience. We at InnoDez understand the best way to secure building permits for clients & believe in providing a timely, competent, cost-effective & comprehensive plan based on the current codes. We can effectively manage & guide each project from conceptual design through construction & project completion.
InnoDez is a California-based company that offers professional design and engineering services for its clients in commercial, residential, and industrial projects. InnoDez is a passionate group of architects & engineers with over 15 years of experience. We at InnoDez understand the best way to secure building permits for clients & believe in providing a timely, competent, cost-effective & comprehensive plan based on the current codes. We can effectively manage & guide each project from conceptual design through construction & project completion.
At Cosmic Renovation and Roofing, we offer years of professional experience and product expertise. We specialize in high quality residential upgrades and services such as roof installations, cool roof paint, solar installations, windows, full home remodeling including kitchen, bath and room additions as well as hardscape and historical house renovation. We take pride in combining innovation, industry knowledge and exceptional customer care with every project we do.
"They did not even get up on the roof to measure for the estimate."
Susan C on January 2022
At Cosmic Renovation and Roofing, we offer years of professional experience and product expertise. We specialize in high quality residential upgrades and services such as roof installations, cool roof paint, solar installations, windows, full home remodeling including kitchen, bath and room additions as well as hardscape and historical house renovation. We take pride in combining innovation, industry knowledge and exceptional customer care with every project we do.
"They did not even get up on the roof to measure for the estimate."
Susan C on January 2022
Structural engineering services FAQs
No, it’s not legal for unlicensed individuals to conduct structural calculations for buildings or building repairs. Not only do licensing requirements prevent DIYers from tackling this project, but mistakes can also be extremely dangerous and put your property and anyone inside or near it at risk of severe injury or even death. You should always hire a licensed and certified local structural engineer to make structural calculations.
Yes, all states require structural engineers to carry the proper license, with specifics determined by each state. You can use Angi’s state licensing tool to confirm that the structural engineer you’re considering holds the required licensing to tackle your job. Hiring an unlicensed structural engineer will not only cause issues with permits but it could also lead to an unsafe building. The cost of a professional, licensed, and experienced engineer is well worth the investment.
The process of hiring a structural engineer starts by finding reliable professionals in your area and comparing quotes from at least three of them. From there, you can narrow down your selection by asking some leading questions:
Do you have experience working in my specific area?
Do you have professional indemnity insurance?
What will your structural report cover?
Do you charge a flat fee for a structural report or by the hour?
How long have you been in business?
Do you have a list of customer references?
Structural engineers typically charge between $100 and $250 per hour, but many jobs won’t be based on a per-hour fee. Instead, the structural engineer will offer a flat rate for the inspection and structural calculations. The flat rate for a structural engineer costs an average of around $550, but you could see prices ranging from $300 to $800, depending on the complexity of your project and how easy it is to access certain parts of your home for the inspection.
Whether you’re building a new home or building an extension on your existing property, you will likely need both a structural engineer and an architect. A structural engineer will determine what loads your foundation and framing can safely handle, and an architect will draw plans according to those structural calculations to simplify the building process. You can start by contacting a structural engineer near you, as many work alongside architects and can get all of the prep work done at once.
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