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    A&J Engineering

    5.0 (6 reviews)
    Closed • 8:00 am - 6:00 pm

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    Services - A&J Engineering

    Structural engineering project consultation

    Structural certification

    Structural drawing

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    6 months ago

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    7 months ago

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    Manny H.

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    2 months ago

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    7 months ago

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    Manny H.

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    4 months ago

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    Manny H.

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    7 months ago

    Very easy to work with. Picks up the phone when you call. Great quality of work. Will use again for future projects.

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    Zenith Engineers

    Zenith Engineers

    (64 reviews)

    The team at Zenith Engineers really are fantastic. I have worked with them many times through my…read morebuilder contractor client, and Zenith are producing regular engineering solutions for retrofits in the cities of Los Angeles, Beverly Hills, West Hollywood and Santa Monica. Soft-story retrofits can be complicated and complex, especially with the various councils' soft-story ordinances, yet Zenith create *great* results on a regular basis. I was originally working with Jason Leon who is the Business Development Manager at Zenith Engineers Inc. Jason is professional, courteous and very helpful. He knows what he is doing and his plans and solutions are very clear. These days I work directly with Juliette Chandler, the Engineering Estimator at Zenith Engineers Inc. Juliette is fantastic - she works very quickly with the turnaround of engineering solutions, and this makes my job a lot smoother with soft-story retrofits. Happy to recommend Zenith - five stars.

    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.

    ProStruct Engineering

    ProStruct Engineering

    (23 reviews)

    Financial District, SoMa

    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.

    I've worked with ProStruct Engineering on a couple of my projects for full plan sets, and I…read morecouldn't be happier with the experience. Their team is very professional, responsive, and easy to work with. The plans were well-prepared and detailed, and the city approved them with minimal corrections, which really speaks about their quality and attention to detail. One of the projects was on a hillside property, where the foundation requirements were quite intense, but their team handled it seamlessly with well-thought-out and detailed designs. See pics. They always delivered on time and maintained excellent communication throughout the process, keeping me informed at every step. I highly recommend ProStruct Engineering to anyone looking for reliable and efficient structural design services! A special mention to Lokesh, who I worked with directly -- he was very responsive, understood my needs clearly, and made sure everything was addressed on time.

    Foundation Solutions - Foundation Solutions offers repairs for all causes of foundation distress.

    Foundation Solutions

    (167 reviews)

    Newhall

    The foundation of my father's home in Concord was sinking, and we hired Foundation Solutions to…read moreremediate the issue. From start to finish, our experience was outstanding. This is an exceptionally well-managed company, and every step of the process was handled professionally and efficiently. We obtained three bids, and Foundation Solutions was by far the easiest and most competent company to work with. They were willing to work with us on their proposal, and throughout the entire project they demonstrated honesty, integrity, and a commitment to doing things the right way. They use Ram Jack which was minimally invasive. They truly run their organization like a well-oiled machine. Our project manager, Brett Everling, was excellent. He kept us informed every step of the way, from the project planning to the city permits and construction schedule. Communication was outstanding, and everything proceeded exactly as promised (and even a little ahead of schedule). For a project of this size and complexity, it's remarkable that everything went so smoothly. The Foundation Solutions crew was punctual, hardworking, and incredibly diligent. They hand-dug the excavation areas, which was no small task, and they treated the property with care. The amount of concrete that needed to be removed was kept to a minimum, and the concrete repairs afterward were done nicely. We did have one issue with the sprinkler system after it was reassembled, but Foundation Solutions responded quickly and resolved it without hesitation. That level of customer service reinforced that we had chosen the right company.

    We just did a mid size project with them last month. We had them underpin one side of the house and…read morereplace a good amount of posts and repair some cracks in our foundation. Brett came out to do an assessment on our entire foundation and his finding was consistent with our own inspection report. Their recommendation is also on par and we find that Brett is quite knowledgeable about the scope of work. He is also very patient, responsive and respectful throughout the estimating project while we took a long time to decide, a lot of follow ip questions and requests. Not once that I felt rushed, pushed or disrespected. The team kept me informed on the timeline of permit, project starting time, inspection and completion, everything was transparent. They passed inspection without problemsx Our foreman is Humberto who was polite, dependable and kept me well informed on the work they performed the day of, when they finished work and provided needed before and after pictures. I also find their pricing is reasonable compared to other companies that we interviewed with the experience that far exceeds their piers. Overall I had a good experience with the crew. They are polite and really didn't interfere with our life that much while they work. I would recommend them for all foundation repair needs. Be careful because lots of foundation companies will scam you, just because you will not be able to see what they did underneath your crawl space. The last foundation company came out to fix our house they made a bunch of noise for 2 weeks, said they are done and then we hired an independent inspector and confirmed they did nothing. Spend the money on a good company. This one is probably the best one ( we interviewed 6 companies)

    Golden State Seismic & Structural - Trenching for rebar and concrete that hardy frames will connect to for softstory retrofit

    Golden State Seismic & Structural

    (119 reviews)

    Brian, Holly, and Gerardo are the best…read more When I contacted them initially two years ago, within the first 10 minutes of talking they'd recognized that our house was not a simple brace & bolt project given its soft story and referred me to a structural engineer (who himself was excellent) for review/evaluation. I begin with this because that structural engineer mentioned he'd had Brian do his own retrofitting and highly recommended him, which was the only endorsement I needed. The scope of the work was soft story retrofit (incl. excavation at the front of the garage to install a Hardy frame, adding in shear walls with bolts, shear wall with URFP ties all along the house's perimeter) as well as adding in anchors (e.g., hand dug piers, rebar, concrete) in the front and back of the house to prevent the house from further sinking. We initially applied for and got into the ESS program, which Brian/Holly guided us through (pulling permits, getting photos, contacting our engineer for letters/responses on ESS program follow-ups). As in the first time and every subsequent time, they were swift and helpful in responding. ESS, if you don't know (like I didn't), goes through FEMA and requires FEMA review and approval of your plans at each step of the way, but the whole program came to a standstill in 2025-26. We had no updates despite us and Brian/Holly repeatedly following up. We gave up on ESS in April and decided to move ahead with the retrofit. Brian was able to work us into his schedule and work began early May and work was completed in just a little over two weeks, a full week faster than I expected. The whole time Brian/Holly kept us apprised of the status, schedule, and inspections; and forwarded us all documentation and pictures as they came up. The crew was efficient and detailed and did thorough clean ups of the worksite after each day. We felt in control and informed the whole time and are confident in the result; I'd hire them again in a heartbeat.

    We had a very positive experience with Golden State Seismic and Structural for our earthquake…read moreretrofit. Their bid was in line with the other bids we received, and we ultimately chose them because of their years of experience doing this type of work and their excellent reviews. Throughout the process, Brian and Holly were prompt and helpful whenever we had questions. They also handled the paperwork for an EBB grant that covered part of the cost, as well as the forms needed for our earthquake insurance reduction, which made the process much easier for us. Jordan and his crew were all polite, hardworking, and respectful of our home, and they did a great job cleaning up after the work was completed. I'm not really qualified to evaluate the technical aspects of the retrofit itself, but the work passed inspection, which gave us confidence that it was done properly. Overall, we're very happy with the experience and would definitely recommend them to anyone considering an earthquake retrofit.

    Groundworks

    Groundworks

    (486 reviews)

    Groundworks did a great job adding a beam to add strength to our home foundation. Cody arrived on…read moretime and inspected our sub floor area. He was very easy to communicate with and provided a thorough inspection along with a cost breakdown. TJ and his team arrived to install beam to add more support to living room floor area. They were extremely professional from start to finish. They arrived on time and took the time to thoroughly explain everything before beginning the project. Throughout the process, TJ kept me informed and made sure I understood what was happening every step of the way. TJ and his crew worked carefully, professionally, and thoughtfully to ensure the project was completed without causing damage to our home. I truly appreciate the care, attention to detail, and professionalism TJ and his team put into the entire job. I would highly recommend Groundworks!

    I spent approximately $30,000 with Groundworks, and I deeply regret hiring them…read more I called Groundworks for one reason: contractors working on my floors noticed a slope and told me the beams underneath my house needed to be stabilized before they could continue. Groundworks assessed my crawl space and recommended a system they represented would address the problem. I relied on their expertise. That is the ONLY reason I agreed to spend approximately $30,000. When the project was about 80% complete, Groundworks suddenly told me I needed to call a carpenter. They did not explain that there was significant dry rot underneath my home or that the condition of the wood needed to be addressed before the work they were performing. I learned that later, after hiring an independent home inspector. By then, Groundworks had already been working throughout the same crawl space installing stabilization and encapsulation. My inspector identified significant dry rot and explained that it needed to be addressed first. Had I known that before Groundworks performed approximately $30,000 worth of work, I would NEVER have moved forward with their recommended system before addressing the underlying damage. And here is the worst part: THE ORIGINAL PROBLEM WAS NOT FIXED. The slope remains and appears to have increased since their work was completed. I am now facing additional repairs and expenses, and some of Groundworks' work may have to be undone or worked around to properly repair the underlying damage. The encapsulation has also been problematic. It was supposed to help keep my crawl space dry, but it was not properly secured, leaving openings that allowed rodents into my crawl space. I also later learned that the dehumidification equipment installed did not cover the entire crawl space as I understood it was supposed to. Then there is the customer service. Once they had my money, getting meaningful help became incredibly difficult. I have contacted corporate and have gone more than a month without a meaningful response. If Chris is assigned to your project, based on my experience, I would be extremely cautious. My advice before hiring Groundworks: GET AN INDEPENDENT INSPECTION FIRST. Do not rely solely on the assessment of the company selling you the system. Get everything in writing and ask specifically whether anything underneath your home needs to be repaired before their system is installed. I trusted Groundworks to identify the problem and recommend a solution. Approximately $30,000 later, my original problem remains, the slope appears worse, I discovered significant dry rot that should have been addressed first, I am facing additional repairs, the encapsulation allowed rodent access, and corporate has been unresponsive. I would NEVER recommend Groundworks based on my experience. $30,000 spent. Original problem unresolved. More repairs ahead. That speaks for itself.

    A&J Engineering - structuralengineers - Updated September 2026

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