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    Dan Szumski

    4.5 (23 reviews)
    Closed 9:00 am - 6:00 pm

    Services - Dan Szumski

    Structural engineering project consultation

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    9 years ago

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    Thank you for the kind words, Tom. It was a pleasure working with you.

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    Ask the Community - Dan Szumski

    Review Highlights - Dan Szumski

    I don't have a background in building, and Dan really went the extra mile to help me get a grasp on the key goals of the retrofit.

    Mentioned in 4 reviews

    Read more highlights

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    Simplengi Engineering - David Yadegar, Principal

    Simplengi Engineering

    (23 reviews)

    West Berkeley

    We have been working on a 2nd floor addition to a 100 yr old house. As one can imagine, there are…read moremany significant structural issues that may arise unexpectedly when opening up walls and seeing how people build things 100 yrs ago. David and Ray have been incredible since the beginning of the process, helping us navigate through all the structural concerns and always trying to find a value engineering approach - whether it was optimizing depth of foundation work, or finding ways to reinforce old windows, coming up with ways to get headers into locations where there isn't the space, and/or proposing alternative shear wall options when there isn't room to fit things. Ray, our project engineer, has been the best communicating and responding to all our questions and worries. He carefully reviews the problem at hand that arise and often will provide 2 or 3 possible options that our builder can work on. With our current project, Ray is always super prompt to resolve any issues via call or email, or video conference and if necessary an onsite visit to inspect the construction phase. He was just crawling in our crawlspace the other day and notified our builder if some items that needed to be addressed to maintain a positive continuous connection from 2nd floor down to 1st floor and to crawlspace foundation. We are now adding the 2nd floor framing and almost done the most stressful part of the project. We have done 3 major remodels in the past with other firms where it was difficult to get in touch with anybody. With Ray and David at Simplengi Engineering, it has been a very refreshing experience to have experts that promptly responds to all our concerns. Value engineering, great timely communication, attention to detail, common sense, simple and smart engineering. We highly recommend Ray and David and Simplengi Engineering for any structural work. Simply great engineering. We don't plan to do another remodel for 100+ years but if we did, we would hire Simplengi 100% for sure.

    ​If you want the highest degree of professionalism​, the best customer service​, and an incredibly…read morewell trained and highly ethical engineer​, who is a supreme problem-solver and someone who actually responds to your questions, then you'll be 1000% satisfied with Dave Yadegar at Simplengi. ​D​ave is a superbly qualified engineer with a ​v​ast amount of varied professional experience​, and with his knowledge and skills​, ​h​e has saved us substantial amounts of time, money and perhaps most importantly - aggravation.​ ​I​nterestingly, I have met ​two other clients​ of Dave's, and they both shared the same opinion of​ his ability.​ ​D​ave will save you time, money, frustration, etc. New construction, remodels, expansion, - commercial and residential: he will simplify your life as ​he has done for me. He is absolutely the very best. PS- a shout-out goes to Antwon Trinh and Santosh Chitturi for helping round out the team!

    Joshua B Kardon + Company Structural Engineers - The SkinnyBrace in place with rebar and bolts being placed in the footing trench before the concrete pour.

    Joshua B Kardon + Company Structural Engineers

    (6 reviews)

    I contacted Joshua B. Kardon, PhD, SE, F.ASCE, on the advice of a friend who is an architect after…read morewe won the bidding war (for $869K) on a 1924 Craftsman home in San Leandro in 2019. It had several issues, especially a problematic (cracked) original foundation. When Joshua Kardon informed us that we might have to spend a considerable portion of the above purchase price to properly fix up the house, make it earthquake-safe, and bring it up to current codes, we decided to pass on this lovely house. (He told us that replacing the cracked original foundation and raising the basement ceiling from 75 inches height to 96 inches on the 1400-square-foot home - all by itself - might cost $200-$300,000 and take many months. The home had other issues, too.) We later purchased a smaller 1954 ranch-style home in almost-as-built condition and called Joshua Kardon again for a consultation about seismic strengthening. He designed the almost-finished project that spans the front of our home and protects it against earthquakes. Joshua Kardon selected a "SkinnyBrace" by Thor Matteson, SE, of Quake Bracing LLC as the most cost-effective way to anchor our garage and the front of the house using attic collectors and garage shear walls. Nieto Valle Construction of Hayward has executed his designs and will soon finish the garage drywall and attic insulation. Joshua B. Kardon, SE, has always insisted on designing and implementing the best possible seismic strengthening solution for us and his solution is now in place. His attention to detail and insistence on doing things "the right way" are highly reassuring and have produced great results. Josh is also very personable, patient in educating us as to why certain design strategies work better, and has a great sense of humor. I would recommend Joshua B. Kardon + Co., Structural Engineers, in a heartbeat to anyone considering seismic strengthening or any other projects requiring the services of an experienced, thorough, detail-oriented, and friendly structural engineer.

    Josh was very kind and helpful in providing feedback on an early inquiry as to how I should…read moreapproach working with a structural engineer and contractor in an aspirational project I've started to think through. His calm, kind and approachable energy is exactly the kind of professionalism you want on your upcoming project.

    ProStruct Engineering

    ProStruct Engineering

    (24 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.

    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.

    EAS Designers - Recent Project in Oakland. Please visit our website to see full version of our portfolio. https://easdesigners.com

    EAS Designers

    (38 reviews)

    I recently had the pleasure of working with EAS Designers, and I couldn't be more satisfied with…read morethe experience. From start to finish, their team was professional, responsive, and genuinely committed to delivering good-quality results. Despite the recent city legalization challenges, they handled everything with transparency and expertise, keeping me informed throughout the entire process. Their knowledge of local regulations and attention to detail really set them apart and gave me peace of mind. If you're looking for a reliable and trustworthy design team, I highly recommend EAS Designers. I would absolutely work with them again and encourage others to do the same!

    Arash helped us with our on going Kitchen Remodeling issue where electrician cut notches on the…read morewindow header compromising it completely. Arash visited the site on a short notice, evaluated the situation and provided with multiple cost-effective, time-effective, not too invasive solutions to bring back the strength of the header. He also took time to answer all our questions, inspected the floor above to check the load and structure etc. Very satisfied with the service. He recommended options that are feasible and quick. The whole onboarding process was quick and easy with Siavash. One day within a call got the appointment. The consultant came prepared looked at our designs. They did not upsell their service in fact they did the opposite to keep our interest in mind. I would work with EAS again when needed. Definitely recommended.

    Dan Szumski - structuralengineers - Updated May 2026

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