What areas do you serve for earthquake retrofitting?

Evergreen Seismic serves Seattle, King County, Snohomish County, Skagit County, Island County, and Pierce County, WA. This includes Seattle, Everett, Tacoma, Bellevue, Kent, Renton, Lynnwood, Marysville, Mount Vernon, Anacortes, Oak Harbor, and surrounding areas.

Do you offer free consultations?

Yes, we provide free assessments in Seattle and most north-end areas. Contact us at (206) 984-2580 or schedule online for a free consultation.

Are you licensed and insured?

Yes, Evergreen Seismic is licensed, bonded, and insured. Business Lic #EVERGSL823JF. We have over 18 years of experience in seismic retrofitting.

What services do you offer?

We specialize in earthquake retrofitting, foundation repair, wood rot repair, and seismic gas shut-off valve installation for residential and commercial properties.

When was Evergreen Seismic founded?

Evergreen Seismic was established in 2018 by owner Matt Robinson, who has over 18 years of experience in seismic retrofitting and 22 years in general construction.

What is included in seismic retrofitting?

Our seismic retrofitting includes anchor bolts, shear panels, shear transfer ties, and hold-downs to address racking, sliding, and overturning forces during earthquakes.

Foundation and Rot Repair Should Come Before a Retrofit

Foundation and rot repair should be the first step when preparing any home for seismic upgrades. When a structure already shows signs of weakness, no retrofit can perform the way it should. We help homeowners understand how hidden moisture, aging wood, and shifting soil impact long-term safety and why correcting these issues early creates a stronger path forward.

Understanding Structural Weakness

Many older homes develop rot in sill plates, rim joists, posts, or beams. Moisture intrusion and time can cause wood to deteriorate, leaving the base of the structure weaker than it appears from the outside. When the foundation itself shows cracking or uneven settlement, the weight of the home shifts in ways that strain framing and connectors. Before any upgrade, we look at how these problems influence overall stability and how they might affect future seismic work.

Why Repairs Must Come First

A seismic retrofit relies on strong, intact components to do its job. If the wood that needs to be braced or bolted has rot, or if the foundation is unable to hold anchors securely, the system cannot provide reliable protection. By completing foundation and rot repair first, we restore the structure to the condition needed for a successful retrofit. This preparation makes every anchor, brace, and connector perform the way it was designed.

Our Professional Approach

We start with a detailed assessment beneath the home, checking for soft wood, moisture pockets, foundation irregularities, and any signs that forces have shifted the structure. Our team shows homeowners where the damage is located and explains how each repair supports the larger goal of long-term safety. We also use proper tools and materials to match the home’s needs, whether that includes replacing compromised framing, adding new support, or repairing foundation sections that can still provide reliable service.

Protecting Your Home for the Future

A retrofit can only strengthen what is already sound. When we correct structural problems first, the upgrade becomes far more effective and lasts longer. Homeowners gain peace of mind knowing the system has a stable foundation to work with and that the house can handle movement better in future earthquakes.

When you need a team that understands how foundation and rot repair fit into the full safety picture, we are here to help. Call us at Evergreen Seismic at (206) 984-2580 to schedule a consultation for foundation and rot repair in Issaquah.

B Snead

I came to know that my house was vulnerable to seismic events so I did some research on how to lessen the risk. The things it seemed I needed were things I didn't want to do myself so I looked around for a vendor and came upon Evergreen Seismic. Matt came out and looked at my house and recommended mediation that was almost exactly what my research had indicated and explained the technology in terms of my particular situation, which was appreciated. He even explained other steps he didn't think were needed, which he probably could have talked me into. I appreciated his honesty and knowledge. We scheduled the work and he did exactly what he said he'd do. I would recommend Matt and his company to anyone.

Warner Asch

We had a fantastic experience with Evergreen Seismic. From the initial estimate through the completed retrofit, everyone we worked with was professional, responsive, and easy to communicate with. Matt was especially great to work with—he took the time to answer our questions, explained the process clearly, and made us feel confident every step of the way. We never felt pressured and always felt like we were in good hands. The crew was punctual, respectful of our home, and completed the work efficiently while keeping the area clean and organized. We also chose to have an automatic seismic gas shutoff valve installed, and they made sure we understood how it worked before they finished. Our home was built in 1959, so it gives us real peace of mind knowing it has now been properly seismically retrofitted. The quality of the work and customer service exceeded our expectations. Thank you, Matt, and the entire Evergreen Seismic team! We highly recommend Evergreen Seismic to anyone looking for a knowledgeable, trustworthy, and professional company.

Blaine Robbins

Matt did a seismic retrofit for us recently. He was communicative and responsive throughout the entire process and did fantastic work, often going above and beyond what was necessary. I would highly recommend for anyone thinking about doing a retrofit.

Jonathan Glick

I'm very happy with the seismic retrofit work Evergreen Seismic did at our home. They were clear about the scope of work and reasonably priced compared to other providers. Matt and Phil were a pleasure to work, worked around our schedule, and got the job done quickly. They work with a well-known engineering company so I'm confident the work meets a high standard.

Alex

Matt & Phil did an absolute fantastic job seismically retrofitting our home. There were several stages in the process where the team went well above and beyond what was required. Generally it is hard to find Contractors you can trust and Evergreen Seismic is absolutely among the few that you could trust to do a great job!

Brian Moynihan

Matt and Phil went above and beyond on the seismic retrofit of our 1919 home. They repaired some rot that was discovered during the process, and still got the project done within the estimated number of days. They also replaced some questionable posts and strengthened a compromised beam - things that other contractors did not include in their bid. Very reasonably priced.

Beck Royer

Excellent professional and a knowledgeable company! Matt was prompt, and helped us with an insurance renewal and on site visit!! Great all round and honest Beck

Cameron Skaggs

Matt and his team were very professional. He helped explain the process and was very transparent with everything. They worked quickly too. I'd recommend them unhesitatingly to anyone looking to retrofit their house for earthquakes

Jaymes Dee

Matt and his team were beyond helpful during our journey to seismic retrofit our 1953 home. At first I was certain I would be doing the retrofits and Matt was gracious enough to come and venture through my crawlspace with me and give me pointers. When life and all of it's entanglements got in the way, Matt and his team were able to knock out the work expeditiously for a very reasonable price. My family and I feel safer because of the work they did. 10/10 recommend.

Erik Peterson

I can't say enough great things about Evergreen Seismic. If I could, I would give them 6/5 stars! Matt was such a pleasure to work with. He was so knowledgeable, patient, responsive, generous with his time, and such a resource. He explained complicated topics into basics I could understand, and also adjusted his approach based on some constraints we had. If you are looking to do any kind of seismic retrofit for your home, you should reach out to Matt and his team at Evergreen Seismic. Just...wow. So refreshing to work with some true professionals.