*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 April 27, 2025
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
RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
"Fast response and clear communication throughout the process."
Marco T on April 2025
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
"Fast response and clear communication throughout the process."
Marco T on April 2025
R deLeon Construction is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.
R deLeon Construction is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.
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 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.
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. 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, 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 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.
Most earthquake retrofitting jobs take one week to 10 business days to complete. However, your professional retrofitting expert will be able to give you a more accurate timeline for your home once you complete an initial consultation. The total time may be longer for projects requiring more extensive work or homes with structural damage due to a prior earthquake.
You can expect to pay between $3,370 and $8,610 in earthquake retrofit costs, ranging from $500 to $15,000 or more, depending on your type of home and foundation and retrofitting method.
If you have a slab foundation, you can expect to pay on the lower end, between $500 and $3,000. If you have a wooden foundation, that cost jumps to $5,000 to $10,000. A hillside home, not as vulnerable to earthquake damage, typically costs between $5,000 to $10,000 to retrofit while a soft-story home ranges from $10,000 to $80,000.
It is not advisable to try to retrofit your home without the expertise of a professional. These projects usually require a consultation with a structural engineer and a plumber for any gas-related adjustments. Working with a professional earthquake retrofitting contractor is the best way to ensure that any structural work done to your home will help protect you and your family.
First, you can expect the project to be loud. If you have pets, you might want to take them to a friend's house during the day so they are not disturbed by any of the loud noises. In addition, you’ll need to provide the retrofit team access to areas of the house that will need to be worked on, meaning you’ll need to relocate personal items, clear clutter, and make pathways for the crew. Once the project is complete, a local building inspector will conduct a final inspection to ensure that the retrofitting is up to code.
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.