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TRUSTED BY PORTLAND, OR HOMEOWNERS
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Average homeowner rating42
Verified earthquake retrofitting services reviews
Verified Reviews for Earthquake Retrofitting pros in Portland, OR
*The Angi rating for Earthquake Retrofitting companies in Portland, OR is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Earthquake Retrofitting needs.
*The HomeAdvisor rating for Earthquake Retrofitting companies in Portland, OR is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Earthquake Retrofitting needs.
Last update on November 26, 2025
Find Earthquake retrofitting specialists in Portland

Secure Seismic, LLC
Secure Seismic, LLC
Our happy and satisfied customers recommend us to their friends and family all the time. We are proud of our reputation and we feel it has been well earned. We are also happy that we can help you feel good knowing that you are working with a reputable company that stands behind its products and services.
"I hired Secure Seismic to do a retrofit of my single story ranch built in the 1970s. Though I'm in the southern Willamette Valley and a ways from Portland, Daryl came down to give me a free estimate. Secure Seismic came in below their competitors and Daryl discusssd the plan with me in depth. Based upon the quality of the reviews, I hired Secure Seismic. They scheduled out within a couple of weeks. Johny the foreman kept me on the loop while they were at my house. They completed the job within a day and left the site clean. Pieces of drywall cut for access in the garage were thoughtfully replaced and will take little effort to clean up. Thanks for great work! I already sleep a little better knowing that my house will likely be okay when the big one hits."
Michael S on April 2024
Our happy and satisfied customers recommend us to their friends and family all the time. We are proud of our reputation and we feel it has been well earned. We are also happy that we can help you feel good knowing that you are working with a reputable company that stands behind its products and services.
"I hired Secure Seismic to do a retrofit of my single story ranch built in the 1970s. Though I'm in the southern Willamette Valley and a ways from Portland, Daryl came down to give me a free estimate. Secure Seismic came in below their competitors and Daryl discusssd the plan with me in depth. Based upon the quality of the reviews, I hired Secure Seismic. They scheduled out within a couple of weeks. Johny the foreman kept me on the loop while they were at my house. They completed the job within a day and left the site clean. Pieces of drywall cut for access in the garage were thoughtfully replaced and will take little effort to clean up. Thanks for great work! I already sleep a little better knowing that my house will likely be okay when the big one hits."
Michael S on April 2024

TerraFirma Foundation Systems
TerraFirma Foundation Systems
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"Awesome crew. Work was done as promised and house is now secure and level."
JoAnn T on November 2025
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"Awesome crew. Work was done as promised and house is now secure and level."
JoAnn T on November 2025

GreenSavers USA, Inc.
GreenSavers USA, Inc.
Founded in 2007, GreenSavers is a mission-driven contractor committed to helping people save energy. Start with a home energy audit or estimate for efficient HVAC, insulation, or Milgard windows. GreenSavers stands out as a Certified B Corporation™ and eight-time winner of the U.S. DOE’s ENERGY STAR® Contractor of the Year Award.
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Donna L on February 2020
Founded in 2007, GreenSavers is a mission-driven contractor committed to helping people save energy. Start with a home energy audit or estimate for efficient HVAC, insulation, or Milgard windows. GreenSavers stands out as a Certified B Corporation™ and eight-time winner of the U.S. DOE’s ENERGY STAR® Contractor of the Year Award.
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Donna L on February 2020

Foundation King of Oregon
Foundation King of Oregon
We are your foundation experts for all of Western Oregon. Call us to discuss the issues you are having and we'll help diagnose your problems and find the best solution for you. We specialize in foundation repair, basement and crawl space conversions, seismic retrofitting, foundation crack repair, stabilizing leaning walls and new foundations under existing homes. We can expand your crawl space or low ceiling basement to livable, usable space that increases the value of your home. Foundation King also provides structural piering, a permanent way to stabilize sinking foundations. We can also provide general contracting services including drywall, stucco and utility services making Foundation King a one stop shop for all of your basement and crawl space needs. Call Jeff today!
"If I could give zero stars I would. Completely unprofessional and crappy work. Cemented over our water shut off. Subcontracted everything and didn’t even check their work."
Heath R on December 2022
We are your foundation experts for all of Western Oregon. Call us to discuss the issues you are having and we'll help diagnose your problems and find the best solution for you. We specialize in foundation repair, basement and crawl space conversions, seismic retrofitting, foundation crack repair, stabilizing leaning walls and new foundations under existing homes. We can expand your crawl space or low ceiling basement to livable, usable space that increases the value of your home. Foundation King also provides structural piering, a permanent way to stabilize sinking foundations. We can also provide general contracting services including drywall, stucco and utility services making Foundation King a one stop shop for all of your basement and crawl space needs. Call Jeff today!
"If I could give zero stars I would. Completely unprofessional and crappy work. Cemented over our water shut off. Subcontracted everything and didn’t even check their work."
Heath R on December 2022
Cascade Seismic, LLC
Cascade Seismic, LLC
We make homes more secure, proving earthquake retrofitting services from start to finish. We visit your home, draw up plans, get them approved by the city, complete the work, and make sure that they pass inspection. We are licensed, bonded, and insured, Oregon CCB License #211369.
We make homes more secure, proving earthquake retrofitting services from start to finish. We visit your home, draw up plans, get them approved by the city, complete the work, and make sure that they pass inspection. We are licensed, bonded, and insured, Oregon CCB License #211369.
Dad's PDX
Dad's PDX
Dad's PDX offers a variety of services to our clients. We are there to take care of the jobs that you need done. We are at heart a Handy Man service.
Dad's PDX offers a variety of services to our clients. We are there to take care of the jobs that you need done. We are at heart a Handy Man service.
GNC Construction
GNC Construction
GNC Construction has a combined total of 40 plus years of experience. We specialize in residential and commercial building. Our staff is experienced in many different trades and we take pride in our craftsmanship and detail. With backgrounds in drywall, steel and wood framing GNC Construction has expanded out to numerous trades. We are certified in steel work, siding, all building trades, painting, plumbing, electrical.
GNC Construction has a combined total of 40 plus years of experience. We specialize in residential and commercial building. Our staff is experienced in many different trades and we take pride in our craftsmanship and detail. With backgrounds in drywall, steel and wood framing GNC Construction has expanded out to numerous trades. We are certified in steel work, siding, all building trades, painting, plumbing, electrical.

Bacharach Construction LLC
Bacharach Construction LLC
Bacharach Construction LLC is a licensed, bonded and insured General Contractor. Major projects include new construction, remodeling, etc.
"We had a series of problems but the final straw is the brand new front door to our studio hanging off the hinges after less than a year and the owner will not stand behind his work. We have opened a complaint with the BBB and we had to hire another contractor of Angi to fix their incompetent hung door installation."
William S on December 2022
Bacharach Construction LLC is a licensed, bonded and insured General Contractor. Major projects include new construction, remodeling, etc.
"We had a series of problems but the final straw is the brand new front door to our studio hanging off the hinges after less than a year and the owner will not stand behind his work. We have opened a complaint with the BBB and we had to hire another contractor of Angi to fix their incompetent hung door installation."
William S on December 2022

Quakepros
Quakepros
Seismic Safe helps keep Oregon safer by providing Retrofit services to Residential homes
Seismic Safe helps keep Oregon safer by providing Retrofit services to Residential homes

On Level Services
On Level Services
Primary service is the re-leveling of Mobile Homes and the repair and refurbishing of Mobile Home foundations. Since Angies list doesn't offer this business category as an option I had to list other categories that got close.
Primary service is the re-leveling of Mobile Homes and the repair and refurbishing of Mobile Home foundations. Since Angies list doesn't offer this business category as an option I had to list other categories that got close.
The Portland, OR homeowners’ guide to earthquake retrofitting services
From average costs to expert advice, get all the answers you need to get your job done.
•Discover how much it costs to repair earthquake damage. Learn about average costs, key factors, and ways to save on earthquake repairs for your home.

A seismic shut-off valve stops the flow of gas during an earthquake, protecting your home from fires and explosions. Here’s what your earthquake valve installation cost will look like.
•Earthquake retrofit costs vary based on home size, location, and project scope. Learn what impacts your price and how to budget for a safer, more secure home.

Earthquake gas shut-off valve installation is important for any home in earthquake-prone areas. Explore how they’re installed here.

Is earthquake retrofitting worth the cost and time? Learn whether seismic updates are a smart idea for your home and how to do it right.

If you live in an older home in an area prone to seismic activity, you likely need to hire a seismic retrofitting company to protect your home from earthquakes.
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