I hired Ali again a second time. A few years ago he helped me to understand and manage a…read morecomplicated and expensive job of installing underpinning to my foundation. My home is 100 years old. Then this month, I had concerns about another area after seeing cracks in the stucco. I got two bids from foundation contractors. They were very different and one was lacking in detail. So I called Ali again for his opinion. He let me know what is actually needed and it's a lot less work than these contractors had said. I am grateful that he is honest and helps me evaluate and understand whats best for my house and my budget.

Ali Mahalat Engineering is the best engineering firm in all of our area. They are our company's…read morefirst choice whenever we need any engineering expertise. Ali Mahalat is not only really good at what he does but his pricing is reasonable as well. He is the best of the best! 5 Star Rating

Great experience with Design Collaborative Services. John helped me turn my garage into an office…read moreand extra bedroom. He was friendly, professional, and easy to work with. I really appreciated his patience when I changed my mind on the layout several times. Communication was clear the whole way through. Highly recommend.

Extremely disappointed with the owner, John Neil. I paid upfront for a portion of the services. He…read moretold me a few times that he was sending me the plan that same day, never did. He proceeded to go MIA, as i have seen he has done to some people in these reviews, and its been 4 weeks. We are delayed in our project causing economical loses and we are extremely disappointed to say the least. Save yourself the trouble.

Working with Irvin at Prostruct Engineering was a breath of fresh air. After purchasing a new home…read moreand enduring my first winter, I was incredibly nervous to find significant water in my crawl space and cracks along the raised foundation. I initially signed a contract with Prostruct, but after Irvin reviewed my photos, he demonstrated a level of integrity that is rare to find. Instead of taking the job, he honestly informed me that my specific issues fell outside their scope. He took the time to explain what I was seeing, referred me to a geotechnical engineer who could actually solve the problem, and issued me a full refund. I greatly appreciated his transparency and professional guidance. I highly recommend Prostruct Engineering to anyone looking for an honest assessment--they clearly prioritize the customer's needs over their own bottom line.

DO NOT USE THIS COMPANY -- terrible communication and shady tactics…read more I reached out to ProStruct Engineering for a simple onsite structural evaluation at my home in Danville. They sent a 10-page contract and demanded the full $1,100 upfront the same day, before any work was even scheduled. After I signed and inquired, I asked the project manager multiple times for a firm date when the engineer could come out for the survey. Instead of giving a straightforward answer, they used clear delay tactics and kept putting me off with vague responses. When I finally decided to cancel before any site visit or report was started, their own contract (Section 5.5) clearly states I should only owe a $500 "setup fee." Yet they are now treating it as if I owe the entire $1,100. This is a classic "pay us everything first, then we'll drag our feet" operation with a heavily one-sided contract designed to trap customers. Save yourself the stress, the risk of a lien on your house, and the endless runaround. There are plenty of other licensed structural engineers in the Bay Area who actually communicate and don't play games with scheduling. Would not recommend. Proceed with extreme caution.

Peiman and Laleh have been a phenomenal help. They are patient, kind, knowledgeable, and willing to…read morego the extra mile, when extra questions or issues arose with our contractor. We wouldn't be more thrilled to recommend them. Peiman's team's professionalism and skill make them a rare find for home remodeling projects in the Bay Area.

I contacted more than 20 structural engineers in attempting to even get someone to take my call,…read morelet alone to make my choice of whom to work with for seismic calculations for my home remodel project. Mr. Peiman Ghaffari of S&P Structural Engineers clearly stood out above the rest. He was the fastest to respond; the best communicator -- patient, clear, and easy to work with; and was the one who completed my project with integrity, high technical competency, and professionalism, exactly on time. I have to say I count myself fortunate for finding and choosing Mr. Ghaffari / S&P for my work and I would hope to hire him again if ever a new need arises.

I hired SF Bay Engineering for seismic retrofit plans under the Earthquake Brace and Bolt program…read more I was told architectural drawings were required before they could proceed, so I hired and paid an architect to prepare them. After multiple back and forth and with SF Bay Engineering admitting they aren't familiar with the requirements, they terminated the contract. They refunded their engineering fee, but the architectural cost remained my responsibility. I brought the matter to small claims court, and the court ruled that because I retained the plans, reimbursement was not warranted. I recommend future clients clarify in writing how architectural costs will be handled if SF Bay Engineering terminates the contract. Happy to provide additional details upon request

Excellent service. Requested a structural evaluation for some cracks across areas of drywall at my…read moreresidential home. The onsite engineer walked my partner through the damage and inspected the foundation. Provided a thorough report with recommendations for structural improvements. Competitive rates. I appreciate their quality, service and price.

Highly recommend! I found Keystone on Yelp to look at a small crack in my outdoor foundation, and…read morethe process was seamless. Scheduling with Clair was incredibly fast--it only took about 2 minutes to set up a general inspection. Julia, my inspector, was fantastic. She was professional, knowledgeable, and very patient with all my questions. After a thorough walkthrough of both the inside and outside of my home, she explained that the foundation itself is fine--the cracks were just poorly mixed surface cement that needs repatching. She even caught two other issues during the walkthrough that I wouldn't have noticed otherwise. I really appreciate the honesty and the extra effort. Great experience!

I had a great experience with Keystone Structural Engineers. I needed a structural inspection on…read moreshort notice, and they were able to fit me in quickly. Mehdi showed up on time and did a thorough job, he checked the roof structure (my main concern) and also looked over the foundation and other key areas. I got the stamped report the next day. Overall, the service was quick, professional, and fairly priced. I'm really happy with the experience and would recommend them.

I want to express our gratitude for Zenith Engineers Inc. prompt, professional, and outstanding…read moreservice throughout our remodeling project. From the very beginning, we were impressed with Senthil, Ryan and other members of Zenith team's level of professionalism, prompt response, architectural knowledge and effective communication.This level of service was seamless through our entire engagement with Zenith Engineers Inc., from obtaining the building permit to successfully passing all necessary inspections by the SF Building Department. No one questions their architectural work because they are so good at what they do. We had some initial concerns after reading negative reviews, but as the project progressed, it became clear that those comments were based on personal grievances, rather than valid concerns. The team at Zenith Engineers Inc. has a high level of professional ethics and integrity. Zenith's management team had explained to us early on in the project, the strict adherence to code and compliance was paramount throughout the project. If Zenith compromises to satisfy unsatisfied clients, the building will end up being non-compliant and more importantly unsafe. We truly appreciate Zenith's commitment to quality and integrity, even if it means earning a few negative reviews along the way, which seem rather unfair to them as they are simply doing their job. I am extremely satisfied with the professional and excellent work the team at Zenith Engineers Inc. provided us and will hire them in a heartbeat for all our future structural and/or seismic engineering needs. Thank you Senthil, Ryan and the Zenith engineering team for your professionalism and support. It was our best decision to work with you and experience such high standard of professionalism, work ethic, and integrity.

After having used Zenith for multiple projects in the last few years, looks like it's finally time…read moreto look for someone else for the next one. We started using Zenith because of its responsiveness and effectiveness when it came to structural design. With them as part of our team, we were able to keep up with the City submittal and response timelines we had set. Fast forward to today, and we can't get a hold of anyone. When we do, it's always an excuse for why they didn't respond, without a resolution. We sent them the last City comments 30 days ago and have yet to get anything viable to re-submit back to the city. Given that this is a 30-unit hotel project, going with a different firm now will mean a complete re-design of the project; an absolutely painful exercise that will set us back months. Zenith knows that. So it's absolutely shameful for them to act in a way that would even suggest that our only choice is to get the entire project re-designed by another firm just to have it keep moving forward. So much for "we respond to emails within 30 minutes and always answer phone calls" as outlined on one of their online profile. Knowing how we were treated on this round of City comments and the fact that the entire company seems complacent about what they try to embody in their rhetoric, I would stay away for any future project.

I hired A1F1 for a small project first (removing two columns in the front of my house to make a…read morenice sit-down patio). Fast, efficient, quality work that flew with high flying colors through the City Permits Department in one pass. I was impressed by them in all the ways our project worked out and hired them again for a very consequential project. Their thoroughness impressed me and my contractor ("These guys sure are covering all the bases brilliantly", he said of them). We wanted to lift up the ceiling of our kitchen and family room. Because the previous framing work was lacking and because we recently replaced our roof and installed a solar system with increased wind exposure, A1F1 explained we needed to install a big beam with a pier in concrete under the house. They provided all the drawings and calculations documentation needed for the City to approve again at first pass. Work is now under progress, and I have been at awe on how everything is working totally like clockwork. Highly recommended!

I was looking for a structural engineer to remove a wall between my kitchen and family room, I had…read morecalled various engineers ( including one that I had worked with in the past) and they all wanted a tremendous amount of money just for a site visit to advise whether it's even possible to remove the wall.. Anthony, from A1F1, took time out of his busy schedule to come out and look for almost no cost. He was on time, professional, and extremely knowledgeable. He actually advised me about another wall bordering my kitchen, and told me I could remove that wall since it wasn't load bearing. So now, I will remove 2 walls, and have a totally open floor plan. Can't say enough about the guy. If you are looking for a structural engineer, believe me, u won't get a better value.

I appreciate the help of MKM in designing the foundations for my Timber Framed Barn "kit". They…read morewere flexible and willing to work with another Structural Engineer to meet the needs of Building, County Code, and me.. the owner! Thanks for the help.

I recently bought a home in Sonoma that had a Cornwall and needed to have piers put in where some…read moreplumbing work had been done. I contacted the engineering group at MKM and was put in contact with Nick Stuart. Nick came out and did a site visit and then worked with a designer to work on a voluntary repair plan to better support my foundation and wall. The experience while working with him was great. He was very responsive, kept to a schedule and came in at the budgeted amount forecasted for the work. He even did above and beyond items, dropping copy of plans off to me while I was at the permit office! I would absolutely recommend them in the future and plan to work with them again on a second unit in the upcoming months. They are extremely professional, have a great work ethic and do a great job!