
Get matched with top earthquake retrofitting specialists in Rossmoor, CA
There are 3 highly-rated local earthquake retrofitting specialists.
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Verified Reviews for Earthquake Retrofitting pros in Rossmoor, CA
*The Angi rating for Earthquake Retrofitting companies in Rossmoor, 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 Rossmoor, 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 04, 2025
Find Earthquake retrofitting specialists in Rossmoor

Dalinghaus Construction, Inc
Dalinghaus Construction, Inc
Our foundation repair, concrete lifting, and support or anchoring products are manufactured to the highest standards, comply with the industry’s strictest guidelines and have been tested by over 100 major structural repair contractors throughout North America. Installation of any product comes with a manufacturer’s warranty along with our own in-house written, transferable warranty! We continuously deliver on a promise to offer great quality and service to our customers. We are consistently implementing the ever-changing methods and technology that present themselves in the construction industry. With our customer’s goals and expectations as our primary company focus, we will continuously strive to better ourselves and our company. We truly respect and appreciate each customer’s project like it is our very own. Our promise to you: We “NEVER SETTLE” for anything but the BEST! For more information or to schedule your inspection, call today!
"Bait and switch. I obtained multiple quotes for my foundation. Dalinghaus Construction quoted me 19 piers to stabilize my home. I questioned why their competitors were quoting me over 30 piers; and they reassured me I was being over quoted by their competitors. Long story short, I went with Dalinghaus. During construction, a rep (David F) came by to drop off some tools and found that 19 piers would not be enough. They said I needed 14 more piers (totaling 33– same as their competitors). I’m stuck because I cannot leave my home half stabilized. No other reputable company would complete the job if another company started it. I was obligated to move forward with Dalinghaus. No one called to apologize for the misstep. They invoiced me and could care less how much this would affect my family. They proceeded to install14 more piers but left 14 large holes— they said backfilling was not part of the scope of work, while the original 19 were backfilled. Insanely strange why they think I wanted 14 large holes at my home. So this is where they gave me a “discount.” They backfilled the holes for free. Free? It should be included in the work. All in all, why do I have to pay for a mistake of this magnitude? I’ve tried to work it out with them peacefully but they have not provided me anything that would make this right. Only excuses why they should not compensate me. They have no integrity. They only care about their reputation at this point (they want my bbb review taken down). I would like to be compensated for the 14 additional piers that were missed from the original quote. 14 additional piers is a completely new job, not a “new work order.” They are the professional and should have done a more thorough assessment to provide me an accurate quote. Their competitors seemed to have done so but I was sadly duped by Dalinghaus. They baited me in and switched the price after the work started. $38k is a lot to lose. I have 2 small children and a home that needs to be completed. Ps. I’ve been waiting over 2 months for a resolution."
Nancy D on September 2022
Our foundation repair, concrete lifting, and support or anchoring products are manufactured to the highest standards, comply with the industry’s strictest guidelines and have been tested by over 100 major structural repair contractors throughout North America. Installation of any product comes with a manufacturer’s warranty along with our own in-house written, transferable warranty! We continuously deliver on a promise to offer great quality and service to our customers. We are consistently implementing the ever-changing methods and technology that present themselves in the construction industry. With our customer’s goals and expectations as our primary company focus, we will continuously strive to better ourselves and our company. We truly respect and appreciate each customer’s project like it is our very own. Our promise to you: We “NEVER SETTLE” for anything but the BEST! For more information or to schedule your inspection, call today!
"Bait and switch. I obtained multiple quotes for my foundation. Dalinghaus Construction quoted me 19 piers to stabilize my home. I questioned why their competitors were quoting me over 30 piers; and they reassured me I was being over quoted by their competitors. Long story short, I went with Dalinghaus. During construction, a rep (David F) came by to drop off some tools and found that 19 piers would not be enough. They said I needed 14 more piers (totaling 33– same as their competitors). I’m stuck because I cannot leave my home half stabilized. No other reputable company would complete the job if another company started it. I was obligated to move forward with Dalinghaus. No one called to apologize for the misstep. They invoiced me and could care less how much this would affect my family. They proceeded to install14 more piers but left 14 large holes— they said backfilling was not part of the scope of work, while the original 19 were backfilled. Insanely strange why they think I wanted 14 large holes at my home. So this is where they gave me a “discount.” They backfilled the holes for free. Free? It should be included in the work. All in all, why do I have to pay for a mistake of this magnitude? I’ve tried to work it out with them peacefully but they have not provided me anything that would make this right. Only excuses why they should not compensate me. They have no integrity. They only care about their reputation at this point (they want my bbb review taken down). I would like to be compensated for the 14 additional piers that were missed from the original quote. 14 additional piers is a completely new job, not a “new work order.” They are the professional and should have done a more thorough assessment to provide me an accurate quote. Their competitors seemed to have done so but I was sadly duped by Dalinghaus. They baited me in and switched the price after the work started. $38k is a lot to lose. I have 2 small children and a home that needs to be completed. Ps. I’ve been waiting over 2 months for a resolution."
Nancy D on September 2022

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

American Home Improvement, Inc.
American Home Improvement, Inc.
At American Home Improvement, Inc. it is our mission to provide the highest quality of service in all aspects of our business. We are extremely thorough in services that we provide and aim to be very receptive to any client's issues, questions or concerns and handle them promptly and professionally. We take necessary steps to ensure that our clients are completely satisfied with all of our contractual and assumed responsibilities. Above all else, we will fulfill these responsibilities while maintaining the highest ethical standards in both of our work and our character.
"When my bathroom started showing its age with leaky pipes and outdated tiles, I called American Home Improvement for a remodel. They were professional from the start, helping me pick out materials that fit my budget and style. The crew was friendly and explained each step, from installing the new vanity to laying fresh flooring. It took about two weeks, but the results are stunning, brighter, more functional space that my family loves. No surprises with costs either, everything was straightforward. If you need a bathroom upgrade, these guys are solid."
Lucas H on September 2025
At American Home Improvement, Inc. it is our mission to provide the highest quality of service in all aspects of our business. We are extremely thorough in services that we provide and aim to be very receptive to any client's issues, questions or concerns and handle them promptly and professionally. We take necessary steps to ensure that our clients are completely satisfied with all of our contractual and assumed responsibilities. Above all else, we will fulfill these responsibilities while maintaining the highest ethical standards in both of our work and our character.
"When my bathroom started showing its age with leaky pipes and outdated tiles, I called American Home Improvement for a remodel. They were professional from the start, helping me pick out materials that fit my budget and style. The crew was friendly and explained each step, from installing the new vanity to laying fresh flooring. It took about two weeks, but the results are stunning, brighter, more functional space that my family loves. No surprises with costs either, everything was straightforward. If you need a bathroom upgrade, these guys are solid."
Lucas H on September 2025
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.
Professional Foundation Repair
Professional Foundation Repair
Our company mission at Professional Foundation Repair is to provide a complete and satisfactory service to all of our clients. We strive to build personal relationships with each of our customers, working with you and not just for you. Safety is always our priority and we continuously work to meet and exceed all regulated safety standards, and our work truly stands the test of time. We specialize in the repair of raised or slab foundations in addition to earthquake retrofitting and also have our own patented concentric pier model, the Wells Concentric Pier, a superior anchor for your foundation. We offer free inspections to homeowners looking to sell or potential homebuyers. We also are opening our new office in Riverside. Call today!
"Amazing work! Professional foundation repair made my home go from sinking to standing tall and strong. Would hire again."
Lexy R on August 2022
Our company mission at Professional Foundation Repair is to provide a complete and satisfactory service to all of our clients. We strive to build personal relationships with each of our customers, working with you and not just for you. Safety is always our priority and we continuously work to meet and exceed all regulated safety standards, and our work truly stands the test of time. We specialize in the repair of raised or slab foundations in addition to earthquake retrofitting and also have our own patented concentric pier model, the Wells Concentric Pier, a superior anchor for your foundation. We offer free inspections to homeowners looking to sell or potential homebuyers. We also are opening our new office in Riverside. Call today!
"Amazing work! Professional foundation repair made my home go from sinking to standing tall and strong. Would hire again."
Lexy R on August 2022
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
The Rossmoor, 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.
In a seismic event, an earthquake gas shut-off valve could stop gas leaks and save your life. Learn more about its costs, installation, and benefits.
If you live near a fault line, your home may need an earthquake retrofit. Find out what you need to know about the process, from costs to who you should hire.
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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