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    Terra Firma Engineering & Science

    5.0 (18 reviews)
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    Services - Terra Firma Engineering & Science

    Structural drawing

    Structural engineering project consultation

    Structural inspection

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    Review Highlights - Terra Firma Engineering & Science

    Marc went above and beyond our expectations by providing a detailed description of what he was observing.

    Mentioned in 14 reviews

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    Bowman & Williams - Our new location, as of December 2017!

    Bowman & Williams

    (2 reviews)

    The technical team at Bowman and Williams rescued us from a natural disaster in 2024. A landslide…read morehad devastated part of our hillside and we needed an emergency grading permit to stabilize things before the rainy season. These guys knew what they were doing to save the day and get through all the red tape that County regulators could muster. Professional, punctual, and courteous, I would recommend Ben and his team anytime.

    After the 2017-2018 winter storms that resulted in Santa Cruz County California being declared a…read morenational disaster our two-mile county service road providing access to 67 residents suffered several $M in damage as mountains collapsed onto the road and several locations when the road collapsed down the mountain. The county retained Bowman & Williams (B&W) to do preliminary damage evaluations in the disaster area. We were required to obtain 3 quotes to qualify for state and federal disaster relief. B&W offered the required survey and construction design services and always came in with a competitive price. As work actually got underway an alphabet soup of regulatory agencies, FEMA, CA OES, WRCB, F&W, made various demands that impacted the design and B&W always responded quickly to keep the projects on schedule. With all the regulatory hurdles, permits, construction bids and county construction requirements it took until FY 2024-2025 to complete the last project and Bowman & Williams stuck with us thru the last bit of paving and the last guardrail.

    Avalon Structural - Avalon uses its excavator to install deep foundations through thick liquefiable layers of soil.

    Avalon Structural

    (49 reviews)

    Avalon Structural is a truly professional organization across the board - front office, inspectors,…read moreengineers, and on-site repair staff. If you have a foundation crack, save yourself the time and trouble and call Avalon Structural first. I got multiple estimates for my fairly extensive ~23' horizontal crack. I found there are three types of companies. The first type will do the minimum to chip out the rusted rebar, throw some fresh rebar in there, patch it up with a "band-aid", and charge you handsomely for a quick in-and-out job. The second will glance at your foundation and immediately tell you it has to be replaced, for an even more handsome price, of course. And then there is Avalon Structural. They will perform a comprehensive and highly structurally sound repair, removing all compromised material, charge a fair price, and stand behind their work with a strong warranty. If you visit their website, read the articles, and watch the videos explaining the right and wrong ways to perform foundation repairs, you will be well-equipped to choose the right company for your foundation job. Or, you can save the time and just call them. We couldn't be happier with our repair. The foundation looks great and feathers in perfectly with the undamaged foundation sections. The repair team was amazing and extremely respectful of our property. The city inspector signed off with zero issues, which speaks volumes about the quality of their work. A big thank you to Roger, MJ, and the entire Avalon Structural team!

    Knowledgeable team, but very poor communication experience…read more The response I received was dismissive, overly aggressive, and unprofessional. Instead of explaining their approach constructively, they criticized other bids and ended the conversation abruptly. I'd recommend getting multiple opinions and relying on an independent structural engineer rather than taking any one contractor's claims at face value.

    JM Construction - A.D.U. with a bay window pop out.

    JM Construction

    (27 reviews)

    The city works dept managed to flood our downstairs with sewage water, and Joe Martines and his…read moreteam expertly handled every aspect of the repairs and clean-up. They worked long hours to put us out of our misery and leave our downstairs bedrooms and bathrooms looking (and smelling) like new . When it came time to fix our leaking roof terrace, I of course called Joe, and he did a great job. His prices are reasonable, and I intend to use him for all our future construction work. Hopefully it won't involve another sewage flood.

    Joe is a life saver. We have called him in during two emergencies, and he has come through for us…read moreboth times. The first was to rescue us from a half-finished bathroom remodel where the original contractor abandoned the project half way through. We could find no other contractor that would touch the project, because you never know the quality of the work already done, and you are kind of assuming responsibility for it. Joe stepped in, fixed some things the previous contractor had screwed up, and finished the bathroom just in time for us to be able to celebrate Thanksgiving with the family visiting. The second time was similar. We had a water line break and it damaged the entire bathroom in the master bedroom. We were displaced from our bedroom and the house was hazardous. Joe was already booked with other projects, but was able to rearrange some of his staff and was able to start fixing the house that very day. Three weeks later, we had a beautiful bathroom. We hadn't anticipated doing another bathroom remodel, and certainly hadn't budgeted for it. Joe's price was very fair, considering the emergency nature of the project and the fact that he had to have people on overtime to help complete the job. I highly recommend JM Construction. They are life savers.

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

    EAS Designers

    (39 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.

    Terra Firma Engineering & Science - structuralengineers - Updated May 2026

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