
Get matched with top earthquake retrofitting specialists in Sonoma, CA
There are 3 highly-rated local earthquake retrofitting specialists.
Need a pro for your earthquake retrofitting project in Sonoma, CA?
Verified Reviews for Earthquake Retrofitting pros in Sonoma, CA
*The Angi rating for Earthquake Retrofitting companies in Sonoma, CA 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 Sonoma, CA 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 October 05, 2025
Find Earthquake retrofitting specialists in Sonoma

ProStruct Engineering, Inc.
ProStruct Engineering, Inc.
ProStruct Engineering offers professional structural engineering services for residential building permits at reasonable prices. Our licensed and insured engineers have over 35 years of experience with 2,000+ completed projects, including new homes, additions, remodels, ADUs, retaining walls, load-bearing walls, seismic retrofits, foundation design, outdoor living spaces, and more. Our core values of integrity, responsibility, reliability, and ethics ensure affordable and high-quality services. We aim to make the home-building experience of California homeowners as stress-free as possible by delivering compliant and high-quality structural plans. We are committed to being cost-effective, with quick delivery in 2-3 weeks for most projects.
"Prompt customer service and delivery. Worked with a very knowledgeable and experienced structural engineer."
Karishma S on August 2023
ProStruct Engineering offers professional structural engineering services for residential building permits at reasonable prices. Our licensed and insured engineers have over 35 years of experience with 2,000+ completed projects, including new homes, additions, remodels, ADUs, retaining walls, load-bearing walls, seismic retrofits, foundation design, outdoor living spaces, and more. Our core values of integrity, responsibility, reliability, and ethics ensure affordable and high-quality services. We aim to make the home-building experience of California homeowners as stress-free as possible by delivering compliant and high-quality structural plans. We are committed to being cost-effective, with quick delivery in 2-3 weeks for most projects.
"Prompt customer service and delivery. Worked with a very knowledgeable and experienced structural engineer."
Karishma S on August 2023

Bielefield Construction, Inc.
Bielefield Construction, Inc.
Our company prides itself on reliability, integrity and quality work. When Bielefield Construction, Inc., is hired, we make it a point to provide the highest level of customer service. With over 30 years of experience, we specialize in custom wood and trim work, additions, remodels and deck building. Specializing in stair railings and newel post installations. If you are looking to turn your home into your dream home, call us today! We look forward to earning your business.
"Very good experience with Bielefield Construction. I would highly recommend."
Sue K on February 2025
Our company prides itself on reliability, integrity and quality work. When Bielefield Construction, Inc., is hired, we make it a point to provide the highest level of customer service. With over 30 years of experience, we specialize in custom wood and trim work, additions, remodels and deck building. Specializing in stair railings and newel post installations. If you are looking to turn your home into your dream home, call us today! We look forward to earning your business.
"Very good experience with Bielefield Construction. I would highly recommend."
Sue K on February 2025
FortiFi
FortiFi
FortiFi offers 100%, non-credit based financing for energy-efficient upgrades to your home. We offer a quick approval process, no payments for up to 17 months, and access to carefully screened contractors who will get the job done right.
FortiFi offers 100%, non-credit based financing for energy-efficient upgrades to your home. We offer a quick approval process, no payments for up to 17 months, and access to carefully screened contractors who will get the job done right.
Jimenez construction.
Jimenez construction.
Jimenez construction is a company attended by owner a general contractor with seventeen years of experience in construction from foundation to finish.
Jimenez construction is a company attended by owner a general contractor with seventeen years of experience in construction from foundation to finish.
Impact Remodeling
Impact Remodeling
Our aim is to perform great workmanship, quality labor and advanced integration and excellent services that satisfy customers' needs.
"Terrific. The folks at Achieve were fast, professional, and responsive. Anything that was not perfect the first time they quickly fixed to my liking. Highly recommended."
Jeff W on March 2019
Our aim is to perform great workmanship, quality labor and advanced integration and excellent services that satisfy customers' needs.
"Terrific. The folks at Achieve were fast, professional, and responsive. Anything that was not perfect the first time they quickly fixed to my liking. Highly recommended."
Jeff W on March 2019
L.E. Baca Construction Co
L.E. Baca Construction Co
L.E. Baca Construction Co. is a respected home builder based in Newark, CA and serving the entire San Francisco Bay Area and other nearby areas. We proudly offer design/build and constructions services for brand new custom homes. We take great pride in customizing the homes we build to meet the exact needs of our clients. Thanks to our use of the highest-quality materials and over 30 years of experience in the custom home industry, our team of home builders is more than capable of turning your “dream home” into reality. Set your appointment with one of our designers and build your home for the future today!
L.E. Baca Construction Co. is a respected home builder based in Newark, CA and serving the entire San Francisco Bay Area and other nearby areas. We proudly offer design/build and constructions services for brand new custom homes. We take great pride in customizing the homes we build to meet the exact needs of our clients. Thanks to our use of the highest-quality materials and over 30 years of experience in the custom home industry, our team of home builders is more than capable of turning your “dream home” into reality. Set your appointment with one of our designers and build your home for the future today!
Superior Building
Superior Building
Superior Building, provides general and electrical construction solutions to home owners. We have trained professionals with years of experience for all construction needs. We are a disabled veteran business enterprise and small business enterprise certified company that is passionate about finding solutions to all construction needs of our clients.
Superior Building, provides general and electrical construction solutions to home owners. We have trained professionals with years of experience for all construction needs. We are a disabled veteran business enterprise and small business enterprise certified company that is passionate about finding solutions to all construction needs of our clients.
Zen Construction
Zen Construction
Zen Construction works all over the bay area and has an amazing team put together to satisfy all his clients needs.
Zen Construction works all over the bay area and has an amazing team put together to satisfy all his clients needs.
Creative Building Solutions
Creative Building Solutions
Established in 2007. We are a local general contractor. It's highly likely that you have seen us around the Gilroy, Morgan Hill , San Martin & San Jose area. We specialize in doing work on higher end homes & commercial remodel. Being that we do it all it really simplifies getting the work done on budget and on time. We offer one on one time with our contractor to go over your needs/new remodel ideas for your home or business.
Established in 2007. We are a local general contractor. It's highly likely that you have seen us around the Gilroy, Morgan Hill , San Martin & San Jose area. We specialize in doing work on higher end homes & commercial remodel. Being that we do it all it really simplifies getting the work done on budget and on time. We offer one on one time with our contractor to go over your needs/new remodel ideas for your home or business.
Gabriel Mena Construction
Gabriel Mena Construction
Construction and remodeling services with 16 years experience. If you are looking for a General contractor with meticulous attention to detail, and the ability to complete small and large projects in a timely manner, call us, Residents throughout the Bay area come to us for one reason: with us, one call does it all. With our full spectrum of services, you can address and alter nearly any aspect of your house, saving time and money by working with just one team. We're industry leaders both in interior space planning and interior design, meaning we can increase the aesthetic appearance of your home while maximizing the space you have to work with. With the real estate market in its current state, there's no reason to gamble with your investment. Come to the team that's committed to getting every project done correctly the first time. We're considered industry leaders for a reason. A combination of skilled workmanship and friendly, open, communication awaits you. Just imagine the possibilities! Still looking for a local general contractor? When you choose our team, you can leave your stress at the door. We're committed to working strictly within your time frame and your budget so you can actually enjoy and engage in the creative process. Give us a call today to discuss your options.
"I had a very strange experience with Gabriel Mena. For the vast majority of my interactions with him, I would rate him as professional, helpful and competent. However, when I asked for a small document several months after the work, he completely and willfully ignored me. This was incredibly aggravating, unprofessional, and I warn all potential clients to be aware that he may ignore you entirely after the work of a project is over. The full story is below: I had a water leak from my washing machine on my condo on the fourth floor. After a very poor experience with the mold remediation/air testing teams, I need a contractor to re-install floors and walls. After contacting two other contractors who didn’t return any of my calls, I found Gabriel Mena on HomeAdvisor.com. He called me after I left a message for him, and said he could look at my condo that evening after work. During this period, he was relatively responsive and was helpful when I got a chance to talk to him face-to-face. He quoted me a price within a week, and I gave that price to my insurance provider, USAA. They said that the estimate was high, and so they sent an adjuster to inspect the unit. After another few days, the estimate was revised down from ~$60,000 to ~$40,000. Other than this small delay, I found Gabriel’s communication to be good. My insurance company was giving me a hard time, so I decided to pay out-of-pocket for all the repairs, and Gabriel required that I pay him in installments for the work. This was a slight hassle for me having to come up with the money every couple of days, but not a big deal. During the work, he did a good job scheduling around my and my tenant/roommate’s schedule, given that all the furniture needed to be out of the room while putting in the floors. The work itself was of high quality, and 4 months later, all the floors and walls are still in good-as-new condition. The only issue at this time was in paying him my second to last installment: I was cobbling together the $$ to pay him, and so a $13,000 installment check bounced. He said it bounced, and so I wrote him a new check a few days later. However, his bank tried to *re*-withdraw the original check 5 days later, which charged me an overdraft fee, and then the second check cashed, and so I had overpaid. We spent about a week trying to figure out the payment, but eventually both checks cashed into his account, and he paid me the remainder. Up until this point, I would rate Gabriel 5/5 stars. He did the work efficiently and with great care towards my schedule, and when there were issues, we resolved them in a reasonable way. Things went downhill several months later. Because I had paid out-of-pocket, my insurance company was reimbursing me directly. After a long battle with my insurance, they finally wrote me a check in mid August (for money I had paid in May). However, federal insurance regulation mandates that the check be written out to the homeowner AND the mortgage company. To get the mortgage company to sign the check, they require an adjuster’s worksheet from insurance and a *certificate of payment and completion* from the contractor. I had not received this document from Gabriel after the project, so I texted him, asking if he could send that my way. He responded promptly “Yes”, and when I asked when I could expect the document, he said “By today.”. Three days later, I had not received the certificate. I texted him on Monday for an update, and got no response. I texted him (politely) for the next few days, and received no response. I finally called him two weeks after the original text, and he responded “Can I call you later?”. I said “Yes please! Have you been getting my texts?”. This was the last time I heard anything from Gabriel Mena. I tried texting him and calling him every day for about two weeks, and didn’t receive even a single word of response. I thought maybe it was an issue with his phone, so tried e-mailing him, and submitting a request through his website. I assumed he was actively choosing not to respond to me at this point, but just to test, a few weeks later, I had my girlfriend call and text him, without referencing me. Just like that, he calls her back the same day. She was uncomfortable picking up and asking about my certificate, so I had her text him to call my number. At this point he begins ignoring her as well. Keep in mind that all of this was to get a simple signed document saying I had paid all the money and his signature. It wouldn’t have taken him more than 10 minutes to produce. Finally, I just submitted a partial receipt I had gotten early in the project, and it turns out my mortgage company didn’t check enough to even notice it was partial and that it didn’t say “work is complete on it”, so it turned out I didn’t need the document at all, but that doesn’t change the fact that a contractor I had pleasantly worked with for a month, willfully ignored my repeated requests for a simple document for a month and a half. I will not be working with Gabriel Mena again, and I recommend to anyone reading this that they avoid him as well."
Zack P on October 2018
Construction and remodeling services with 16 years experience. If you are looking for a General contractor with meticulous attention to detail, and the ability to complete small and large projects in a timely manner, call us, Residents throughout the Bay area come to us for one reason: with us, one call does it all. With our full spectrum of services, you can address and alter nearly any aspect of your house, saving time and money by working with just one team. We're industry leaders both in interior space planning and interior design, meaning we can increase the aesthetic appearance of your home while maximizing the space you have to work with. With the real estate market in its current state, there's no reason to gamble with your investment. Come to the team that's committed to getting every project done correctly the first time. We're considered industry leaders for a reason. A combination of skilled workmanship and friendly, open, communication awaits you. Just imagine the possibilities! Still looking for a local general contractor? When you choose our team, you can leave your stress at the door. We're committed to working strictly within your time frame and your budget so you can actually enjoy and engage in the creative process. Give us a call today to discuss your options.
"I had a very strange experience with Gabriel Mena. For the vast majority of my interactions with him, I would rate him as professional, helpful and competent. However, when I asked for a small document several months after the work, he completely and willfully ignored me. This was incredibly aggravating, unprofessional, and I warn all potential clients to be aware that he may ignore you entirely after the work of a project is over. The full story is below: I had a water leak from my washing machine on my condo on the fourth floor. After a very poor experience with the mold remediation/air testing teams, I need a contractor to re-install floors and walls. After contacting two other contractors who didn’t return any of my calls, I found Gabriel Mena on HomeAdvisor.com. He called me after I left a message for him, and said he could look at my condo that evening after work. During this period, he was relatively responsive and was helpful when I got a chance to talk to him face-to-face. He quoted me a price within a week, and I gave that price to my insurance provider, USAA. They said that the estimate was high, and so they sent an adjuster to inspect the unit. After another few days, the estimate was revised down from ~$60,000 to ~$40,000. Other than this small delay, I found Gabriel’s communication to be good. My insurance company was giving me a hard time, so I decided to pay out-of-pocket for all the repairs, and Gabriel required that I pay him in installments for the work. This was a slight hassle for me having to come up with the money every couple of days, but not a big deal. During the work, he did a good job scheduling around my and my tenant/roommate’s schedule, given that all the furniture needed to be out of the room while putting in the floors. The work itself was of high quality, and 4 months later, all the floors and walls are still in good-as-new condition. The only issue at this time was in paying him my second to last installment: I was cobbling together the $$ to pay him, and so a $13,000 installment check bounced. He said it bounced, and so I wrote him a new check a few days later. However, his bank tried to *re*-withdraw the original check 5 days later, which charged me an overdraft fee, and then the second check cashed, and so I had overpaid. We spent about a week trying to figure out the payment, but eventually both checks cashed into his account, and he paid me the remainder. Up until this point, I would rate Gabriel 5/5 stars. He did the work efficiently and with great care towards my schedule, and when there were issues, we resolved them in a reasonable way. Things went downhill several months later. Because I had paid out-of-pocket, my insurance company was reimbursing me directly. After a long battle with my insurance, they finally wrote me a check in mid August (for money I had paid in May). However, federal insurance regulation mandates that the check be written out to the homeowner AND the mortgage company. To get the mortgage company to sign the check, they require an adjuster’s worksheet from insurance and a *certificate of payment and completion* from the contractor. I had not received this document from Gabriel after the project, so I texted him, asking if he could send that my way. He responded promptly “Yes”, and when I asked when I could expect the document, he said “By today.”. Three days later, I had not received the certificate. I texted him on Monday for an update, and got no response. I texted him (politely) for the next few days, and received no response. I finally called him two weeks after the original text, and he responded “Can I call you later?”. I said “Yes please! Have you been getting my texts?”. This was the last time I heard anything from Gabriel Mena. I tried texting him and calling him every day for about two weeks, and didn’t receive even a single word of response. I thought maybe it was an issue with his phone, so tried e-mailing him, and submitting a request through his website. I assumed he was actively choosing not to respond to me at this point, but just to test, a few weeks later, I had my girlfriend call and text him, without referencing me. Just like that, he calls her back the same day. She was uncomfortable picking up and asking about my certificate, so I had her text him to call my number. At this point he begins ignoring her as well. Keep in mind that all of this was to get a simple signed document saying I had paid all the money and his signature. It wouldn’t have taken him more than 10 minutes to produce. Finally, I just submitted a partial receipt I had gotten early in the project, and it turns out my mortgage company didn’t check enough to even notice it was partial and that it didn’t say “work is complete on it”, so it turned out I didn’t need the document at all, but that doesn’t change the fact that a contractor I had pleasantly worked with for a month, willfully ignored my repeated requests for a simple document for a month and a half. I will not be working with Gabriel Mena again, and I recommend to anyone reading this that they avoid him as well."
Zack P on October 2018
The Sonoma, CA 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.
Earthquakes can cause serious damage, but you can protect your home. Find earthquake retrofit costs based on the type of home, foundation type, retrofit method, and more.
Fear not! Steady the shakes, tame the tremors, and get earthquake-ready while we give you a better idea of how long earthquake retrofitting takes.
Earthquake gas shut-off valve installation is important for any home in earthquake-prone areas. Explore how they’re installed here.
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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