
Serving Lancaster, CA and surrounding areas
Approved
In business since 2018
Offers commercial services
Customers say: Quick response
"He's very efficient and on top of everything. Great communication."





+15

*The Angi rating for Structural Engineering companies in Lancaster, 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 Lancaster, 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 November 12, 2025

Serving Lancaster, CA and surrounding areas
Approved
In business since 2018
Offers commercial services
Customers say: Quick response
"He's very efficient and on top of everything. Great communication."





+15

Serving Lancaster, CA and surrounding areas
Approved
In business since 2018
Free estimates
Small jobs welcome
"I am a homeowner who did my own home remodeling architectural design. Even though I had architect degree, but I had never done any project in Los Angeles. As everybody knows, Building and Safety has tons of regulations to follow, which made the permitting process especially difficult. I was so lucky to work with David, my structural engineer, who is very sharp, knowledgeable and hardworking. Not only did he deliver his structural design on time but also he guided me through with all details of my architectural plan. He is very responsive and generous about sharing his knowledge. It was such a surprise when David got me the permit over the counter from the city office with only one attempt, which expedited my remodeling project timeline for at least two months. Definitely recommended!!"





+23

Serving Lancaster, CA and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
With over two decades of experience, we provide structural engineering services for residential and commercial projects throughout California. We specialize in timber, steel, concrete, and CMU structural design for public and private sector developments. Our approach focuses on safety, constructability, cost efficiency, and full code compliance.\nOur experience includes shopping centers, office buildings, retail spaces, tenant improvements, industrial facilities, new homes, additions, remodels, ADUs, retaining walls, foundation systems, seismic retrofits, and structural upgrades. We work closely with owners, architects, contractors, and local agencies to deliver practical engineering solutions with fast turnaround times and reliable support from design through permitting and construction. Customer satisfaction, clear communication, and dependable service are the foundation of our business. Contact us today to discuss your project.





+5
Serving Lancaster, CA and surrounding areas
Approved
In business since 2007
Free estimates
Small jobs welcome
"-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"



Serving Lancaster, CA and surrounding areas
Approved
In business since 1990
Free estimates
Small jobs welcome
"I have worked with many designers over the years, but few with Steve talent and patience to create the perfect design for the project, very happy with all projects he has done for me."





+12

Serving Lancaster, CA and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"I am having a full master bath and kitchen remodel done with new layouts in both rooms and knocking out a wall. Evolution worked with me to quickly get a drawing done of the new layouts so that the contractor could get started on the project. They made sure to include me in the process so that the design would be done exactly as my wife and I envisioned. They communicated effectively throughout the process and were always courteous and professional. I recommend them to anyone with drafting needs."





+23

Serving Lancaster, CA and surrounding areas
Approved
In business since 2007
Free estimates
Small jobs welcome
"Codaspaces and Jerome were excellent to work with. Reasonable in price, and great on execution and creative solutions."

Serving Lancaster, CA and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience.\nYou will find us to be competitively priced with close attention to the details.\nOur reputation is based on service, safety, and quality, regardless of how large or small the job.\nWe look forward to building a lasting relationship and guarantee your satisfaction!\n


Serving Lancaster, CA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"He is tenacious and that is what you need in these municipalities to get the job done-- It is one of his best qualities."

Serving Lancaster, CA and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
We’re a medium-sized firm a Riverside-based firm. All of our plans are done in-house. We believe in local jobs and never "farm" out our work. All of our plans are Made in the U.S.A.! Our approach for projects means you will have an architect-lead project. You will have us as an entrusted partner in the design, development and construction of your home or facility. We have multiple licensed architects on-staff and most have over 35 plus years' experience. Your team will be staffed with seasoned professionals with backgrounds in many types of projects.





+8
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