Retaining Walls in San Francisco, CA

Seismic Retrofitters specializes in high-quality retaining walls in San Francisco, CA, ensuring durability and aesthetic appeal for your property.

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Expert Retaining Walls Solutions in San Francisco

Crafting Lasting Beauty with Exceptional Retaining Walls for Your Space

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Enhancing Structural Resilience for a Safer Tomorrow

Garage door openings and/or large unreinforced ground-floor spaces are the most vulnerable to collapse under the strong lateral forces of an earthquake. In San Francisco, there are thousands of multi-unit buildings and homes with these “soft-story” conditions.


With the passing of San Francisco’s Mandatory Soft Story Retrofit Ordinance, seismic building codes have been updated, so it is important to know your building is being retrofitted to current seismic standards, which include the right hardware and installation methods of bolts, clips, holddowns, foundation footings, steel frames, and shear walls.


At Seismic Retrofitters, we work only with qualified engineers and reputable suppliers to offer both custom-engineered and pre-certified bracing systems to reduce costs and turnaround times.

Steels frames
Installed steel frames
Preventing collapse of building
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Durable, Custom Retaining Walls for Residential and Commercial Properties

Whether for residential or commercial use, our retaining walls provide effective solutions for soil retention and elevation control. Designed to withstand the elements, our structural retaining walls ensure long-lasting durability, efficient drainage management, and enhanced property stability. We offer custom-designed retaining walls that meet structural standards and blend seamlessly with your landscape, delivering both function and aesthetic appeal.

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Advanced Slope Stabilization Solutions with Custom Retaining Walls

For both residential and commercial properties facing slope challenges, our retaining walls provide top-tier soil retention and elevation control. Our custom retaining walls are specifically designed to stabilize slopes, prevent soil erosion, and manage drainage, ensuring lasting durability. Built to meet stringent structural standards, these walls enhance the safety and appearance of your property while offering effective, long-term slope stabilization.

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Custom Engineered Wall Systems for Reliable Soil Retention and Elevation Control

Our engineered wall systems provide the perfect solution for both residential and commercial clients needing effective soil retention and elevation control. Designed for durability and compliance with structural standards, our retaining walls are built to withstand the toughest conditions while managing drainage efficiently. Each engineered wall is custom-designed to fit your property’s unique needs, ensuring long-term stability and enhanced performance.

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Why Choose Us for Your Seismic Retrofitting Needs

Transforming landscapes is our passion, and one of the best ways to achieve that is through expertly constructed retaining walls. These structures not only provide support and prevent soil erosion but also serve as stunning visual elements in any outdoor space. In San Francisco, CA, we specialize in creating customized retaining walls that blend seamlessly with your landscaping plans. Our team is dedicated to using high-quality materials and innovative designs tailored to meet your specific needs. When you choose us for your retaining walls , you’re investing in durability, aesthetic appeal, and long-term stability. Let us bring your vision to life while ensuring that your retaining walls offer both function and style. For more information, check out our retaining walls services.

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Why Retrofitting Now is the Best Choice

According to the USGS, a high-magnitude earthquake will likely strike the Bay Area within the next ten years. Considering this, ask yourself these questions:


  • Is my building properly retrofitted to avoid tenant displacement after a large earthquake?
  • Can I afford the 25% insurance deductible in the case of catastrophic damage?
  • Was previous work done with permits and the oversight of a qualified engineer?


There is no predictable earthquake season. And even if your building has survived previous quakes, buildings and foundations deteriorate over time. You cannot assume your building will hold up when the next “big one” hits.

Meet the Owner of Seismic Retrofitters

Meet the owner

Mark Barbagelata, owner of Seismic Retrofitters, has nearly three decades of experience in construction and real estate. He operates his business and raises his family in San Francisco. Mark understands the importance of safe and secure structures and, in particular, the uniqueness of San Francisco’s soft-story buildings.


After over a decade of high-end remodels, including one home that was recently showcased in the Gems of San Francisco tour, Mark created Seismic Retrofitters to bring fairly priced quality services and the latest seismic technology to property owners.
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What Our Clients Think About Us

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Frequently Asked Questions

Have questions about our services? We're here to help.

  • Why is Seismic Retrofitters so popular?

    Seismic Retrofitters has earned its popularity through an unwavering commitment to excellence in seismic retrofitting services. Our extensive experience and expertise in seismic retrofitting set us apart as industry leaders. Clients choose us repeatedly for our thorough on-site evaluations and expert consultations, ensuring a tailored approach to their unique needs. Our detailed construction bids and comprehensive plans, coupled with our proficiency in all aspects of seismic retrofitting, from foundation inspection and seismic bolting to upgrading shear walls and ensuring fire code compliance, make us the go-to choice for property owners seeking unparalleled protection. With Seismic Retrofitters, you can trust that your investment is in the hands of experts committed to delivering top-notch seismic retrofitting solutions.

  • What services do you provide?

    1. On-site evaluations and expert consultations
    2. Detailed construction bids and preliminary plans
    3. Permitting
    4. Construction:

    • Foundation inspection and replacement.
    • Anchoring a dwelling to its foundation through seismic bolting.
    • Increasing the shear strength of existing garage or chimney walls by applying shear panels.
    • Addition of new shear walls or upgrading existing interior walls, where applicable.
    • Improving the lateral shear strength of garage doors and large open spaces.
    • Replacing crumbling or sinking foundations and stem walls.
    • Upgrading electrical and plumbing.
    • Mitigating asbestos and ensuring fire code compliance.
    • Reinforcing and/or bracing fireplace chimneys.
    • Installing automatic gas shut-off valves.
    • Installing electric vehicle (EV) outlets in the garage.
    • Increasing parking space in the garage (when feasible).

  • What is Seismic Retrofitters philosophy?

    We are a third-generation San Francisco family business.


    Our philosophy is to improve the strength and safety of soft-story, multi-use, and residential buildings with a reasonable investment. We understand the financial and emotional connections our clients have with their homes and investment properties. Protecting what is most valuable to you—your property and the people who occupy it—is our business.

  • What is the best way to contact you?

    You can reach us by calling 415-822-4200. You can email us at mark@quakeprep.com. Or fill out the contact form here on our site.


    We can't wait to hear from you!

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Retaining Walls