
Get matched with top earthquake retrofitting specialists in Placentia, CA
There are 6 highly-rated local earthquake retrofitting specialists.
Need a pro for your earthquake retrofitting project in Placentia, CA?
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Verified Reviews for Earthquake Retrofitting pros in Placentia, CA
*The Angi rating for Earthquake Retrofitting companies in Placentia, 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 Placentia, 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 24, 2025
Find Earthquake retrofitting specialists in Placentia

Alpha Structural, Inc.
Alpha Structural, Inc.
Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.
"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."
Robert N on September 2024
Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.
"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."
Robert N on September 2024

Socal Express Restoration and Construction Inc.
Socal Express Restoration and Construction Inc.
We are an ethical, honest and professional company. We are easy to communicate with. Always working with you until the job is done right and to your specifications. When working with our company you can expect integrity, prompt service and superior customer service. Always leaving the job site clean . We take pride in our services and enjoy making clients repeat clients. You can count on us to get the job done right the first time. We will meet with you at your convenience and will not keep you waiting. Call us today for your free estimate. You'll be pleased you did. Thank you
We are an ethical, honest and professional company. We are easy to communicate with. Always working with you until the job is done right and to your specifications. When working with our company you can expect integrity, prompt service and superior customer service. Always leaving the job site clean . We take pride in our services and enjoy making clients repeat clients. You can count on us to get the job done right the first time. We will meet with you at your convenience and will not keep you waiting. Call us today for your free estimate. You'll be pleased you did. Thank you

Alpha Structural
Alpha Structural
For over 25 years now, Alpha Structural, Inc. has developed a powerful reputation as the #1 Foundation Engineering and Repair, Landslide Repair, Earthquake and Structural Rehabilitation Contractor in the Los Angeles area. We have over 200 years of combined technical experience and all of it is hard-core and down-in-the-trenches, not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California.
"Amir gave us a great price, and did the work in a timely and professional manner"
Val H on July 2023
For over 25 years now, Alpha Structural, Inc. has developed a powerful reputation as the #1 Foundation Engineering and Repair, Landslide Repair, Earthquake and Structural Rehabilitation Contractor in the Los Angeles area. We have over 200 years of combined technical experience and all of it is hard-core and down-in-the-trenches, not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California.
"Amir gave us a great price, and did the work in a timely and professional manner"
Val H on July 2023

Toms-co.com
Toms-co.com
Making Southen California safe again. Consult with Tom on any project with a no obligation site visit and estimate for completion of the work. Over 25 years of residential ane commercial construction experience. We offer residential and commercial abatement and construction services using limited access equipment, fantastic clean up and amazing dependability. Our technicians have over 20 years of construction experience.
"Everything was finished efficiently and quickly while working with Tom and his team. We felt very taken care of because they walked us through each stage in the process. This situation was really stressful for our family but we felt like the stress was lifted with the help of Tom and his team. Very grateful for their help and quick work."
Baylee T on September 2024
Making Southen California safe again. Consult with Tom on any project with a no obligation site visit and estimate for completion of the work. Over 25 years of residential ane commercial construction experience. We offer residential and commercial abatement and construction services using limited access equipment, fantastic clean up and amazing dependability. Our technicians have over 20 years of construction experience.
"Everything was finished efficiently and quickly while working with Tom and his team. We felt very taken care of because they walked us through each stage in the process. This situation was really stressful for our family but we felt like the stress was lifted with the help of Tom and his team. Very grateful for their help and quick work."
Baylee T on September 2024
LA Creative Design
LA Creative Design
LA Creative Design Is A Once Stop Shop For All Your Design & Construction Needs! From Concept to Completion: Experience the Convenience of Our Design and Construction Solutions We offer a personalized one on one service guided by our team composed of in-house architects, engineers, and contractors who have worked on over 900 approved projects & have over 10 years of experience.
LA Creative Design Is A Once Stop Shop For All Your Design & Construction Needs! From Concept to Completion: Experience the Convenience of Our Design and Construction Solutions We offer a personalized one on one service guided by our team composed of in-house architects, engineers, and contractors who have worked on over 900 approved projects & have over 10 years of experience.

Merco Earthmoving and Paving
Merco Earthmoving and Paving
Merco Earthmoving and Paving is a small owner operated business that has been committed to providing customers with the very best in paving and construction. From driveways to backyards and anything in between, we can help to ensure that your property is the best year-round. Any job big or small, we do it all.
Merco Earthmoving and Paving is a small owner operated business that has been committed to providing customers with the very best in paving and construction. From driveways to backyards and anything in between, we can help to ensure that your property is the best year-round. Any job big or small, we do it all.
Ambros Construction Inc.
Ambros Construction Inc.
Ambros Construction Inc. is a CSLB licensed (A, B, C34) general contractor specializing in construction of new buildings as well as renovation and repair. We have successfully completed projects involving concrete foundation, pipelines, utilities, driveways and walkways, parking lots, framing, drywall, interior and exterior trim, plumbing, electrical, roofing, and are rapidly increase our staffing to tackle more expansive major commercial and public works projects. We keep all these services and skills internally through our on staff contractors, specialists, and general laborers so that we are prepared to meet the requirements of any design specs our clients give to us.
Ambros Construction Inc. is a CSLB licensed (A, B, C34) general contractor specializing in construction of new buildings as well as renovation and repair. We have successfully completed projects involving concrete foundation, pipelines, utilities, driveways and walkways, parking lots, framing, drywall, interior and exterior trim, plumbing, electrical, roofing, and are rapidly increase our staffing to tackle more expansive major commercial and public works projects. We keep all these services and skills internally through our on staff contractors, specialists, and general laborers so that we are prepared to meet the requirements of any design specs our clients give to us.
Ronvader foundation specialist
Ronvader foundation specialist
This preparedness work include (earthquake) seismic retrofitting otherwise know as house bolting ,foundation repair work , foundation replacement, red brick replacement work ,floor leveling ,post and pier repair ,also doing drainage work to divert water from foundation. We also do sister foundation installation work next to red brick or river rock foundation. Working Together We offer an end-to-end client experience that includes seamless communication, budgeting, staffing, on-site organization, and solid, quality work every time We have been in business for over 8 years family owned business from father to son .
This preparedness work include (earthquake) seismic retrofitting otherwise know as house bolting ,foundation repair work , foundation replacement, red brick replacement work ,floor leveling ,post and pier repair ,also doing drainage work to divert water from foundation. We also do sister foundation installation work next to red brick or river rock foundation. Working Together We offer an end-to-end client experience that includes seamless communication, budgeting, staffing, on-site organization, and solid, quality work every time We have been in business for over 8 years family owned business from father to son .

Foundation Repair LA Inc
Foundation Repair LA Inc
Foundation and Structural Repair Contractors. Family owned and operated, based in Los Angeles, and serving the Greater Los Angeles area, Foundation Repair LA Inc. represents over 55 years of combined experience in structural repair, providing an unparalleled level of workmanship and customer service.
"I highly recommend them to everyone that needs help with their foundation. Very helpful and knowledgeable"
Rebecca H on October 2022
Foundation and Structural Repair Contractors. Family owned and operated, based in Los Angeles, and serving the Greater Los Angeles area, Foundation Repair LA Inc. represents over 55 years of combined experience in structural repair, providing an unparalleled level of workmanship and customer service.
"I highly recommend them to everyone that needs help with their foundation. Very helpful and knowledgeable"
Rebecca H on October 2022
Optimum Seismic, Inc.
Optimum Seismic, Inc.
Optimum Seismic, Inc is Southern California’s leading retrofit company for earthquake retrofit engineering and construction, specializing in multifamily and commercial buildings. Since 1984, the team at Optimum Seismic has completed more than 2500 retrofits on a variety of buildings throughout the state of California. Seismic Engineering, Full-service Retrofit Construction, Construct ability Analysis, Value Engineering, Cost Estimates/Analysis, Steel Fabrication
Optimum Seismic, Inc is Southern California’s leading retrofit company for earthquake retrofit engineering and construction, specializing in multifamily and commercial buildings. Since 1984, the team at Optimum Seismic has completed more than 2500 retrofits on a variety of buildings throughout the state of California. Seismic Engineering, Full-service Retrofit Construction, Construct ability Analysis, Value Engineering, Cost Estimates/Analysis, Steel Fabrication
The Placentia, 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.

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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