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TRUSTED BY TUALATIN, OR HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon12
    Verified earthquake retrofitting services reviews

Find Earthquake retrofitting specialists in Tualatin

Avatar for Secure Seismic, LLC

Secure Seismic, LLC

5.00(
17
)
Approved Pro

Secure Seismic, LLC

5.00(
17
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
2016 years of experience

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


Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

4.63(
66
)
Approved Pro

TerraFirma Foundation Systems

4.63(
66
)
Approved Pro
Customers say: True professional
2005 years of experience
Free onsite estimate

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


Avatar for Guardian Foundations and Construction

Guardian Foundations and Construction

5.00(
5
)
Approved Pro

Guardian Foundations and Construction

5.00(
5
)
Approved Pro
Super Service Award
Customers say: Quick response
2000 years of experience
Free onsite estimate

At Guardian Foundations and Construction we embrace our roles as guardians, ensuring the safety and longevity of every structure entrusted to us. With a professional yet personable approach, we prioritize affordability without compromising quality. Rooted in our commitment to community, we foster meaningful connections and partnerships, fortifying foundations that support not only buildings but the lives they touch.

"If you want great service with people you can trust I recommend this company 100%"

Jess A on December 2024

At Guardian Foundations and Construction we embrace our roles as guardians, ensuring the safety and longevity of every structure entrusted to us. With a professional yet personable approach, we prioritize affordability without compromising quality. Rooted in our commitment to community, we foster meaningful connections and partnerships, fortifying foundations that support not only buildings but the lives they touch.

"If you want great service with people you can trust I recommend this company 100%"

Jess A on December 2024


Avatar for Masonry Waterproofing & Drainage Masters LLC

Masonry Waterproofing & Drainage Masters LLC

4.97(
90
)

Masonry Waterproofing & Drainage Masters LLC

4.97(
90
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

We are a full service foundation and basement waterproofing company that performs a wide variety of repairs. We repair foundations, and lots of basements, fixing cracks, deterioration, resurfacing, and waterproofing. We do general masonry, including brick repair. We help with drainage problems, install French drains, as well as crawlspace drainage options to get water out from under homes. We repair chimneys, including tuck-pointing (new mortar), flashing, caps, dampers, and water sealing. .We also do all waterproofing as it relates to chimneys or foundations. Thank you for your consideration. Service area covered: All of the greater Portland area, as well as Southwest Washington. Additional email - [email protected]. Thank you and have a great day!

"We had an amazing experience with this company. We worked with Byron and he did a fantastic job. Very professional, knowledgeable and they were able to get the job done quickly. We had several quotes about our foundation but Byron was by far the most knowledgeable and we were so happy with the price. We are so happy with his work and will definitely be recommending him! We have reached out to him and he is always happy to help. So glad we chose this company!"

Jacqueline G on March 2025

We are a full service foundation and basement waterproofing company that performs a wide variety of repairs. We repair foundations, and lots of basements, fixing cracks, deterioration, resurfacing, and waterproofing. We do general masonry, including brick repair. We help with drainage problems, install French drains, as well as crawlspace drainage options to get water out from under homes. We repair chimneys, including tuck-pointing (new mortar), flashing, caps, dampers, and water sealing. .We also do all waterproofing as it relates to chimneys or foundations. Thank you for your consideration. Service area covered: All of the greater Portland area, as well as Southwest Washington. Additional email - [email protected]. Thank you and have a great day!

"We had an amazing experience with this company. We worked with Byron and he did a fantastic job. Very professional, knowledgeable and they were able to get the job done quickly. We had several quotes about our foundation but Byron was by far the most knowledgeable and we were so happy with the price. We are so happy with his work and will definitely be recommending him! We have reached out to him and he is always happy to help. So glad we chose this company!"

Jacqueline G on March 2025


Avatar for NW Seismic

NW Seismic

4.84(
93
)

NW Seismic

4.84(
93
)
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

We are a family-owned business whose mission is to create a more seismically prepared Portland. In designing and implementing a retrofit plan tailored specifically to our client's homes, we hope to shorten the recovery time for Portland after the next Cascadia subduction earthquake. Our work is calculated to strengthen homes to a degree in which homeowners can shelter in place after a moderate-to-high seismic event.

"NW Seismic made a very easy process for estimating and installation. Their drywall and plaster work was particularly well done. They also made some excellent recommendations regarding natural gas shut-offs and securing our water tank. Very professional from beginning to end. Would hire again anytime."

Mikel M on January 2022

We are a family-owned business whose mission is to create a more seismically prepared Portland. In designing and implementing a retrofit plan tailored specifically to our client's homes, we hope to shorten the recovery time for Portland after the next Cascadia subduction earthquake. Our work is calculated to strengthen homes to a degree in which homeowners can shelter in place after a moderate-to-high seismic event.

"NW Seismic made a very easy process for estimating and installation. Their drywall and plaster work was particularly well done. They also made some excellent recommendations regarding natural gas shut-offs and securing our water tank. Very professional from beginning to end. Would hire again anytime."

Mikel M on January 2022




WESTERN CONSTRUCTION SYSTEMS

4.85(
26
)

WESTERN CONSTRUCTION SYSTEMS

4.85(
26
)
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Not a franchise, Family owned and operated since 1987. CCB# 94222, Serving the entire NW. FREE Estimates/ Inspections. Western Construction Systems LLC. is a locally owned, family owned and operated specialty construction company serving the entire north-west. WCS LLC. Prides its self in high quality work which is micro-managed by highly trained crews to ensure the highest level of confidant work. WCS LLC. Has also worked internationally in South America and currently has crews in Haiti. We have worked as far south as El Salvador and as far north as Alaska. We are able to attend to small residential job as well as large industrial projects.

"Western Construction Systems came out and did exceptional work at my house! They went above and beyond my expectations! They were friendly, professional, and hard-working! They took care of all the issues that I had concerns with and then some! Their prices were fair, especially for the high quality of work that they did! I know I pestered them with questions, but they were patient every single time. Before I contacted them to have the work done, I had high anxiety about the drainage issues. When they were finished, I felt confident that there were no more issues. Peace of mind is priceless!"

Robyn S on August 2022

Not a franchise, Family owned and operated since 1987. CCB# 94222, Serving the entire NW. FREE Estimates/ Inspections. Western Construction Systems LLC. is a locally owned, family owned and operated specialty construction company serving the entire north-west. WCS LLC. Prides its self in high quality work which is micro-managed by highly trained crews to ensure the highest level of confidant work. WCS LLC. Has also worked internationally in South America and currently has crews in Haiti. We have worked as far south as El Salvador and as far north as Alaska. We are able to attend to small residential job as well as large industrial projects.

"Western Construction Systems came out and did exceptional work at my house! They went above and beyond my expectations! They were friendly, professional, and hard-working! They took care of all the issues that I had concerns with and then some! Their prices were fair, especially for the high quality of work that they did! I know I pestered them with questions, but they were patient every single time. Before I contacted them to have the work done, I had high anxiety about the drainage issues. When they were finished, I felt confident that there were no more issues. Peace of mind is priceless!"

Robyn S on August 2022


SundanceOregon Inc

4.87(
45
)

SundanceOregon Inc

4.87(
45
)
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Clear Span basement Beams, Earthquake retrofitting, Residential and commercial remodeling. MANY references available, Just ask!

"They were wonderful. They told me everything they were doing. And put interest in what I'm doing in my house."

Patricia A on November 2020

Clear Span basement Beams, Earthquake retrofitting, Residential and commercial remodeling. MANY references available, Just ask!

"They were wonderful. They told me everything they were doing. And put interest in what I'm doing in my house."

Patricia A on November 2020


Avatar for WM. D. Herboth Remodeling Inc.

WM. D. Herboth Remodeling Inc.

4.90(
20
)

WM. D. Herboth Remodeling Inc.

4.90(
20
)
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Herboth Remodeling brings customer's ideas into reality. We have been servicing the Portland Metro area for over 30 years and are family owned and operated. Our expertise in seamlessly combining the new addition with the existing structure gives your home the look and feel of your addition being part of the original structure of your home. Remodel, Repair, and Additions Room additions Kitchen Remodels Bathroom Remodels and repairs Decks & Framing Garage rot repair New Garages Basement remodels Siding & Paint Window and door replacements Duplex addition Rejuvenated Fence Bath Room Rot Repair CCB# 57089

Herboth Remodeling brings customer's ideas into reality. We have been servicing the Portland Metro area for over 30 years and are family owned and operated. Our expertise in seamlessly combining the new addition with the existing structure gives your home the look and feel of your addition being part of the original structure of your home. Remodel, Repair, and Additions Room additions Kitchen Remodels Bathroom Remodels and repairs Decks & Framing Garage rot repair New Garages Basement remodels Siding & Paint Window and door replacements Duplex addition Rejuvenated Fence Bath Room Rot Repair CCB# 57089

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Earthquake Retrofitting questions, answered by experts

Depending on where you live, your insurance company may require you to have a seismic shut-off valve. It depends on local regulations along with the specific provider. If it’s not a requirement, many providers will offer a discount if you install an earthquake valve, which can save you 5% or more. Contact your provider to learn about potential savings for your plan.

Costs vary as much as timelines. The average earthquake retrofit costs between $3,500 and $8,700. However, homes on hillsides, large homes, and those with rooms over garages can cost up to $12,000 or more. Make sure to get a few estimates to compare the cost and services.

Earthquake retrofitting can increase your home value, making it a great return on investment. This feature is especially valuable in areas prone to earthquakes. Besides the increased safety value (not only for your family but for the next family who moves in), earthquake retrofitting also helps lower homeowners insurance rates. In addition, having your home earthquake retrofitted can make it easier to get a home loan since they are considered lower risk.

Some cities or states may require you to have an earthquake gas shut-off valve. Your insurance provider may also have requirements for installing this valve. Even if you don’t have to have one by law, it’s wise to have a natural gas plumber install one anyway. These devices can be lifesaving and prevent fires or explosions in the event of a gas leak.

According to the Earthquake Country Alliance—a public and private alliance in California that works to improve earthquake and tsunami readiness—reports that unreinforced masonry, such as stone, bricks, and hollow clay tiles, is more susceptible to earthquake damage. The mortar between bricks isn’t as stable as other building materials and methods.

The Tualatin, OR homeowners’ guide to earthquake retrofitting services

From average costs to expert advice, get all the answers you need to get your job done.

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