I can't say enough good things about Emad. From start to finish, he went above and beyond to help…read moreus navigate the soils engineering process and, most importantly, get approvals through the City of San Bernardino. Emad was extremely knowledgeable, responsive, and patient in explaining what was needed at every step. When challenges came up with the city, he didn't just hand off the problem--he actively worked with the reviewers, followed up consistently, and made sure nothing fell through the cracks. That level of dedication is rare. If you're looking for a soils engineer who truly advocates for their clients and understands how to work with local jurisdictions, Emad is the one. His professionalism and commitment saved us time, stress, and unnecessary delays. Highly recommend without hesitation.

Based on a description and photos I provided, Emad told me I need a contractor instead of an…read moreengineer and provided multiple recommendations. He responds to emails in a very swift manner.

I had the pleasure of working with an exceptional engineer Hamid who drafted the plans to convert…read moreour kitchen into an open-concept layout, which required removing a previously load-bearing wall. From start to finish, the level of professionalism, expertise, and attention to detail was truly outstanding. The engineer demonstrated a deep understanding of structural integrity while also respecting the design vision for the space. He carefully evaluated the existing structure and developed precise plans to safely support the load while allowing us to achieve the open, modern kitchen we wanted. His calculations and documentation were thorough and well-organized, which made the permitting and construction process much smoother. What impressed me most was his ability to balance technical precision with practical solutions. He communicated clearly, answered all questions patiently, and ensured the plans were easy for the contractor to follow. The result was a seamless transformation--our kitchen now feels bright, spacious, and beautifully integrated with the rest of the home. If you need an engineer for structural modifications, especially for projects involving load-bearing walls, I highly recommend his services. His expertise, reliability, and commitment to quality truly set him apart.

Hamid helped me again! He was quick to respond, and was very helpful. He's a true professional and…read morea great guy, I recommend him to anyone needing a structural engineer.

I am very disappointed with the level of service provided. The week prior, we had a detailed…read moreconversation regarding a resolution for an existing structure on our 5-acre property, and the engineer agreed to schedule an in-person consultation. We confirmed an appointment from 12:00 PM to 1:00 PM in the Temescal area of Corona. Despite his office being located in Corona, he stated he was unable to find the property, even after I provided clear directions. My elderly parents were present at the property to assist, and I had arranged to meet him during my lunch break from work. Upon arrival, I found no issues accessing the property there were no "large rocks" blocking the entrance as he claimed. Unfortunately, he had already left before the scheduled time without proper communication. Instead, he states that we send photos of the structure. This experience was a significant waste of time and demonstrated a lack of professionalism, reliability, and respect for our schedule. I would not recommend this service based on our experience.

I used them for a new build from designing a structural fence to doing all of the structural…read moreengineering and grading plans for a new 7,000 sf under roof custom home and they were amazing, a lot of people just focus on the plans and ignore the after plans service which is required for structural and in each inspection the spent tons of time at the site making sure everything was done right!! Highly recommend them!!! And pricing is very fair!

My husband and I had been researching different Design and Engineering firms and finally choose…read moreStewart Design and Engineering. Not only did Christine explain the process throughly with us before we even started but she put our mind at ease explaining that they would handle the entire process with the city for approval for us. Our engineer Carl was amazing with us from the very first consultation. He designed and engineered our home addition and was very detailed. He was responsive the entire time and provided cost effective solutions that really saved us. He is very knowledgeable and skilled at what he does. He really cares about his clients and it definitely shows. I would recommend them if your looking for any design or Engineering services.

Three star is for the hope that they would be a real place who can provide construction documents…read morefor my home. After many times I have reached out to them to start the measuring process and start design from the pre design work I have given them. There was many follow ups with excuses. I attached the email excuse they gave after I sent them what they asked for. Luckily no money was paid out to them. I'm

Mustafa was great to work with.. I highly recommend his services and I will continue to go to him…read morefor future needs. He is fair on pricing & excellent in delivery, communication, and friendly professionalism. 5 stars *****

I had a premium experience consulting Mr. Mustafa about my unpermitted ADU. I was nervous looking…read morefor an Architecture online to help with my permits, Mustafa spent his time and resources giving me expert information and opinions in the most respectful and sincere manner when it came to additional and unforeseen/possible cost to the project. I value the consultation and highly recommend Mr. Mustafa.

they gave me opinions on how to re-enforce my structure; and do addition on 2nd floor and easy to…read moreget city permit . A To Z Eng gave me options on how to re-enforce my house structure and do addition to my 2nd floor .Their alternate construction ideas save me a lot of money ,time and made my modifications less painful than excepted . Mike.M

I've emailed and called for a quote. Response to my email was not filled with any information that…read moreI asked for. They asked for my number in email, even though we talked on the phone when they asked for my email. It was a pain communicating after I sent the information over I had for a quote to be delivered. there is no physical location. Only go with them if you have patients and know nothing about the process. I do.