For most of us, our home is our largest investment. Protect that investment by making sure your home has been seismically retrofitted. Seismic retrofitting is a simple process of attaching the wood framing of your house down to it’s foundation. This not only protects your home, but your family as well.
It is estimated that more than 125,000 homes within the city of Seattle are not retrofitted, and projected that there are another 125,000 more in the surrounding cities and communities. These homes are resting on their foundations, held in place by nothing but gravity. Unfortunately, the Pacific Northwest is extremely unprepared for a catastrophic earthquake.
Across the retrofit industry, there is an acronym used known as the ABC’s of retrofitting; Anchor, Brace, and Connect. There are three major weaknesses in the way homes typically fail during major earthquake events. We address these weaknesses by attaching the the first floor framing platform that you walk on down to the concrete foundation.
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Anchor
The first step is to install anchor bolts through the mudsill, attaching the framing to the foundation. This process prevents any lateral movement.
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Brace
Installing plywood shear panels braces the pony walls and prevents it from racking or folding over during an earthquake.
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Connect
We attach shear transfer ties connecting the rim joist to the top plate or mudsill, preventing any lateral shifting.
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For those considering a seismic retrofit, I highly recommend Matt Robinson’s firm, Evergreen Seismic. Matt and Evergreen Seismic specialize in seismic retrofits.
Accordingly, Matt’s initial assessment of work to be performed was well-informed by substantial experience, sound understanding of relevant codes and the permitting process, and accurate anticipation of what would likely be required by the structural engineer given our circumstances and requirements. While explaining and developing his proposed Scope of Work and bid, Matt responded quickly to questions and concerns; and his flexible approach enabled him to focus on meeting technical requirements while also addressing our specific requests and desires.
Scott B
Highly recommend Matt if you are looking to retrofit your house. His work is of the highest quality, he tailors his services to your needs, his fees are competitive, and he was excellent to work with. As a quick background, I work as an architect, so I’m familiar with building trades and permitting in Seattle, and Matt has got this thing figured out.
If your house is on a CMU foundation, especially, Matt is your guy. There’s a good way and a bad way of retrofitting CMU foundation walls, and Evergreen Seismic is one of the only shops in town with the capability to do it the right way. Matt takes the time to understand your needs, and can customize his approach to save you money and hassle whenever possible. Very happy with the quality of his work, I don’t think you could do any better than to go with Evergreen Seismic for your retrofit.
Marilynn S.
Matt is the most honest person I have worked with in my 20 years of managing homes! He won’t miss any detail on any job. I am so grateful for the day I saw his vehicle parked in front of my neighbor’s house.
He has an amazing knack of projecting the feeling that you are his favorite and best customer. OK, I’m going to still convince myself that it is true! Even if you won’t be purchasing earthquake insurance, you will most certainly sleep better at night. Thank you, Matt, for choosing the right career.
Spencer S.
Matt was an absolute pleasure to work with. In the course of renovating our old home, we had a lot of contractors on site but Matt was far and away the best.
He is communicative, punctual, respectful, and kind! He did great work for exactly the price he quoted. When we had inevitable mix-ups along the way due to all the different kinds of work being done simultaneously, Matt was gracious and understanding. The quality of his work is evident, and he clearly takes pride in it. I can highly recommend Matt and Evergreen Seismic for future projects.
Chris M.
Just finished up my retrofit with Matt from Evergreen Seismic. 100% the best experience i’ve ever had with hiring someone to do work on my house.
Extremely knowledgeable, considerate, friendly, and he worked non-stop and got the job done faster than expected. I initially called him because his review were fantastic and I understand why. 10/10 just call Matt and I guarantee you’ll be happy you did!

Evergreen Seismic is a family owned and operated company that specializes in earthquake retrofitting and consulting to primarily residential, and some commercial buildings. With over 20 years of construction experience, 18 of which are specific to seismic retrofitting, Evergreen Seismic not only serves residents within the city of Seattle, but also the surrounding areas. We are proud to serve Seattle and King County, as well as surrounding Snohomish, Pierce, Skagit, and Kitsap counties. Evergreen represents the state of Washington. We serve anyone within our region.
About Evergreen SeismicEstablished in 2018, Evergreen Seismic was created by owner, Matt Robinson. Matt grew up in the small town of Skykomish, WA, a town with a population of 250, where he graduated high school. He attended college following, but grew up with a passion and desire to someday own his own construction company, and has recently realized that dream.
Matt started out working at Merkava Construction, a house lifting and moving company. He later moved on and worked for the largest seismic retrofit coorporation in Seattle for nearly a decade. There he started as a carpenter, and eventually grew to become Project Manager in his final years. Matt has over 20 years of general construction experience, which consists of roofing; framing; siding; drywall; concrete foundation work; house lifting and additional skills. He has over 18 years in the retrofit field, and has owned Evergreen Seismic for over two years.