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!

Fen Wang has done an outstanding job on our project. After our home burned down, we hired a Prefab…read morecompany to rebuild it, which ended up being a nightmare. There were countless issues due to the Prefab company, not ZFA. Thankfully, Fen was always kind and patient dealing with every issue that came up, and he always provided a solution. It has truly been a pleasure working with Fen, and I can recommend him without reservation.

From the owner: ZFA is a 60 person structural engineering firm serving public and private clients throughout…read moreCalifornia since 1974. We deliver structural engineering expertise to the commercial, correctional, civic, fire, education, wineries, retrofit, design-build, hospitality, healthcare and high-end residential and historic sectors. ZFA is an employee-owned Small Business Enterprise, licensed Federally and in the State of California, with five Bay Area offices. How may we help you today?

I spoke to Larry about a project that had already been started. Needles to say, we were in a bind…read moreand needed load calcs as the original engineer had personal issues to deal with. Larry was there to save the day. If I ever need help again in the field of his expertise, I won't hesitate. Thanks, Larry.

We contacted Larry to ask for his expert opinion on structure engineering. He is professional and…read moregenerous in sharing his knowledge. Thank you Larry! We will not hesitate working with this company.

I purchased a piece of property in Mendocino county and I strongly suspected that my neighbor was…read moreencroaching onto my side of the parcel boundary. I called Hogan land services and they were quick to call me back and advise me of how I might easily be able to pinpoint the county boundary markers myself. But I leaned toward hiring them so I could have a professional on site to document findings and present them to my neighbor. Hogan land services delivered with five stars on every aspect of what I hired them for and what I hoped to accomplish. They were professional, polite accurate knowledgeable and incredibly helpful. On top of all that...They came in under their bid!!!!

Hogan tried to get a lawyer to threaten me and sue me for slander for using my first amendment…read morerights for writing a 100% true factual Yelp review about the deplorable "work" they did. I hired a ANTI SLAPP attorney and hoped they would sue as I would easily prevail. The business practice used on my elderly mother during covid was so unscrupulous, we considered filing suit for elder abuse, as they attempted to grossly over charge her for their mistakes and miscommunications, Eric was especially unscrupulous and totally inept at his simple job. They had the nerve to charge us for miscommunications on their end and then had their lawyer threaten us and then back down and go silent when they realized they didn't have a leg to stand on. Don't walk. Run. I laughed when I saw their 101 billboard advertising themselves as first responders. They are first responders like a vulture is a first responder to road kill. In other words, I am saying they engage in predatory business practices. If anybody else has been threatened with legal action for exposing these people please contact me and I can put you in touch with the best anti slapp attorney in northern California that already knows about these people. I am also happy to be a witness in any other legal action against this company. I have documents and emails that back up my claims here. I will testify to all facts above under oath in a court of law.

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.

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 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.

Get ready because Bob charges by the minute and he makes sure to talk a lot to get more money. I…read morehave worked with many building professionals in San Francisco and Sonoma County, and I cannot believe how he nickel and dimed us. Also, he did not even go underneath my home when we hired him to do our structural report for the sale of our house. When I called to ask him about why he did not do this, he talked for over 15 minutes telling me why he didn't have to go underneath the house. Then I received a bill for over $260 for that 15 minutes. A 45 minute visit to my home with only visual inspection cost me $1500. I suggest you find someone else to work with.

From the owner: Ost Engineering, Inc. is a structural/civil engineering and building code consulting firm with over…read more25 years of experience serving the public. Our mission is to provide quality structural engineering, design services, and code consulting to property owners, developers, and design professionals. We can work with you to facilitate your project development needs. Working with us you will receive a comprehensive evaluation of your project, and useful, honest, direct feedback concerning any special needs, so that we can work together to overcome any challenges that may arise. Our goal is a properly executed, professionally prepared, cost-effective submission package designed to secure approval of your project by the required governing agencies.