Top-rated earthquake retrofitting specialists.

Get matched with top earthquake retrofitting specialists in Castaic, CA

There are 9 highly-rated local earthquake retrofitting specialists.

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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon16
    Verified earthquake retrofitting services reviews

Find Earthquake retrofitting specialists in Castaic

Avatar for Alpha Structural, Inc.

Alpha Structural, Inc.

8334 Foothill Blvd
4.67(
231
)
Approved Pro

Alpha Structural, Inc.

8334 Foothill Blvd
4.67(
231
)
Approved Pro
Customers say: Super punctual
208 local quotes requested
33 years of experience

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


Avatar for Socal Express Restoration and Construction Inc.

Socal Express Restoration and Construction Inc.

6860 Canby Avenue, Suite 114
New on AngiNew on Angi
Approved Pro

Socal Express Restoration and Construction Inc.

6860 Canby Avenue, Suite 114
New on AngiNew on Angi
Approved Pro
5 years of experience
Free onsite estimate

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


DAM Ventures, Inc.

28851 Industry Drive
4.33(
87
)
Approved Pro

DAM Ventures, Inc.

28851 Industry Drive
4.33(
87
)
Approved Pro
Customers say: Quality work
9 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Very good customer service."

Jay L on January 2022

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Very good customer service."

Jay L on January 2022


Avatar for American Home Improvement, Inc.

American Home Improvement, Inc.

20335 Ventura Boulevard, Suite 422
4.56(
162
)
Approved Pro

American Home Improvement, Inc.

20335 Ventura Boulevard, Suite 422
4.56(
162
)
Approved Pro
Customers say: Quality work
336 local quotes requested
21 years of experience

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.

"American Home Improvement did a fantastic job on our bathroom remodel. Shawn was very attentive to our ideas and guided us through each step. His crew was polite, tidy, and clearly skilled in their work. They upgraded everything from the shower and flooring to the vanity, and now the space feels fresh and luxurious. The remodel was completed on time, and the craftsmanship exceeded our expectations. Shawn and his team made the whole experience stress-free, and I couldn?t be happier with the outcome."

Edwin Q on October 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.

"American Home Improvement did a fantastic job on our bathroom remodel. Shawn was very attentive to our ideas and guided us through each step. His crew was polite, tidy, and clearly skilled in their work. They upgraded everything from the shower and flooring to the vanity, and now the space feels fresh and luxurious. The remodel was completed on time, and the craftsmanship exceeded our expectations. Shawn and his team made the whole experience stress-free, and I couldn?t be happier with the outcome."

Edwin Q on October 2025


Avatar for MVP Remodeling, Inc.

MVP Remodeling, Inc.

17547 Ventura Boulevard, Suite 307A
5.00(
13
)
Approved Pro

MVP Remodeling, Inc.

17547 Ventura Boulevard, Suite 307A
5.00(
13
)
Approved Pro
Customers say: Quick response
18 years of experience
Free onsite estimate

At MVP Remodeling, we’re passionate about transforming houses into dream homes. With decades of experience, our dedicated team guides you through every step of the remodeling process, ensuring exceptional results. From home foundation and Roof to outdoor spaces and bathroom remodel, we’re committed to bringing your vision to life with precision and excellence. MVP Remodeling specializes in comprehensive foundation concrete services and innovative landscaping solutions. With a commitment to quality and durability, we offer expert foundation installation and repair, ensuring structural integrity for residential properties. MVP Remodeling’s skilled team delivers reliable, customized solutions, tailored to meet the unique needs of each client.

"I couldn’t be happier with the earthquake retrofit done by MVP Remodeling. When I selected the company for the EBB retrofit, they weren’t the cheapest estimate, but they were far from the most expensive. Joseph explained the process and scope of work clearly and I was confident that selecting them was the best decision. Beginning the work was delayed as we found I had skunks living in my crawl space and I had to find someone to deal with that problem. My contact person at MVP, Maya, was wonderful throughout. She kept in touch with me and scheduled the retrofit immediately as soon as my skunk situation was resolved. Throughout the process, Maya guided me as to what I needed to do on the EBB Dashboard, and she submitted their materials immediately. It couldn’t have gone any smoother! Once the work was completed, MVP had the inspector examine and approve the work the following day, and withing a week I had the EBB check in my hand. I’m so glad I decided to do the retrofit and th"

Marilyn B on August 2025

At MVP Remodeling, we’re passionate about transforming houses into dream homes. With decades of experience, our dedicated team guides you through every step of the remodeling process, ensuring exceptional results. From home foundation and Roof to outdoor spaces and bathroom remodel, we’re committed to bringing your vision to life with precision and excellence. MVP Remodeling specializes in comprehensive foundation concrete services and innovative landscaping solutions. With a commitment to quality and durability, we offer expert foundation installation and repair, ensuring structural integrity for residential properties. MVP Remodeling’s skilled team delivers reliable, customized solutions, tailored to meet the unique needs of each client.

"I couldn’t be happier with the earthquake retrofit done by MVP Remodeling. When I selected the company for the EBB retrofit, they weren’t the cheapest estimate, but they were far from the most expensive. Joseph explained the process and scope of work clearly and I was confident that selecting them was the best decision. Beginning the work was delayed as we found I had skunks living in my crawl space and I had to find someone to deal with that problem. My contact person at MVP, Maya, was wonderful throughout. She kept in touch with me and scheduled the retrofit immediately as soon as my skunk situation was resolved. Throughout the process, Maya guided me as to what I needed to do on the EBB Dashboard, and she submitted their materials immediately. It couldn’t have gone any smoother! Once the work was completed, MVP had the inspector examine and approve the work the following day, and withing a week I had the EBB check in my hand. I’m so glad I decided to do the retrofit and th"

Marilyn B on August 2025


Avatar for Dalinghaus Construction, Inc

Dalinghaus Construction, Inc

445 Birch St
4.43(
7
)
Approved Pro

Dalinghaus Construction, Inc

445 Birch St
4.43(
7
)
Approved Pro
Customers say: Quick response
190 local quotes requested
14 years of experience

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


Avatar for Retrofitting360

Retrofitting360

19562 VENTURA BLVD
No reviews yet

Retrofitting360

19562 VENTURA BLVD
No reviews yet
9 years of experience

RetroFitting360 is a soft story retrofit contractor in Los Angeles specializing in construction & handling of the entire soft story retrofit process. We cover all parts of the soft story retrofitting process starting with cost effective design & engineering, permit submission, tenant habitability program (THP), construction and tenant management, as well as obtaining the certificate of compliance & cost recovery assistance.

RetroFitting360 is a soft story retrofit contractor in Los Angeles specializing in construction & handling of the entire soft story retrofit process. We cover all parts of the soft story retrofitting process starting with cost effective design & engineering, permit submission, tenant habitability program (THP), construction and tenant management, as well as obtaining the certificate of compliance & cost recovery assistance.


Avatar for Cosmic Renovation and Roofing Inc

Cosmic Renovation and Roofing Inc

6300 CANOGA AVE
4.16(
70
)

Cosmic Renovation and Roofing Inc

6300 CANOGA AVE
4.16(
70
)
Customers say: Super punctual
Free onsite estimate

At Cosmic Renovation and Roofing, we offer years of professional experience and product expertise. We specialize in high quality residential upgrades and services such as roof installations, cool roof paint, solar installations, windows, full home remodeling including kitchen, bath and room additions as well as hardscape and historical house renovation. We take pride in combining innovation, industry knowledge and exceptional customer care with every project we do.

"Cosmic Renovation & Roofing did a great job building our deck. Our deck was over 30 years old. Ben responded immediately to different options and also worked within our budget. We called other deck companies and there were long delays or no call backs. We love our deck and are proud to show it to our neighborhood. We have received many complements regarding the deck. We highly recommend Ben"

Rene R on April 2021

At Cosmic Renovation and Roofing, we offer years of professional experience and product expertise. We specialize in high quality residential upgrades and services such as roof installations, cool roof paint, solar installations, windows, full home remodeling including kitchen, bath and room additions as well as hardscape and historical house renovation. We take pride in combining innovation, industry knowledge and exceptional customer care with every project we do.

"Cosmic Renovation & Roofing did a great job building our deck. Our deck was over 30 years old. Ben responded immediately to different options and also worked within our budget. We called other deck companies and there were long delays or no call backs. We love our deck and are proud to show it to our neighborhood. We have received many complements regarding the deck. We highly recommend Ben"

Rene R on April 2021


Avatar for Smart Construction Consultants

Smart Construction Consultants

30700 RUSSELL RANCH RD
5.00(
16
)

Smart Construction Consultants

30700 RUSSELL RANCH RD
5.00(
16
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are specialize in a General remodeling and new construction of residential homes (e.g. painting , flooring, stucco , bathroom remodeling , kitchen remodeling , General remodeling of partial or entire home, structural reinforce , Roofing , Foundation/ retrofit Etc. ) .Any project on your home from a minimum 5k budget and up to 5 Million you welcome to contact us for a free consultation & bid. After years of serving thousands of satisfied homeowners along southern California I decided to establish my own company with bringing the experience and professionality I've gained over the years. My philosophy is to be always fair and professional with providing outstanding customer service because homeowners comes first ! our commitment is to the highest standards with no compromise on the work provided to the homeowners till they are fully satisfied FREE Dishwasher with any kitchen remodel $5000 or more!!

"They remodeled our bathroom and kitchen, the crew was very professional and friendly, the price was fair. Thank you Smart Construction Consultants for the beautiful results! Highly recommended!"

Josef Z on September 2019

We are specialize in a General remodeling and new construction of residential homes (e.g. painting , flooring, stucco , bathroom remodeling , kitchen remodeling , General remodeling of partial or entire home, structural reinforce , Roofing , Foundation/ retrofit Etc. ) .Any project on your home from a minimum 5k budget and up to 5 Million you welcome to contact us for a free consultation & bid. After years of serving thousands of satisfied homeowners along southern California I decided to establish my own company with bringing the experience and professionality I've gained over the years. My philosophy is to be always fair and professional with providing outstanding customer service because homeowners comes first ! our commitment is to the highest standards with no compromise on the work provided to the homeowners till they are fully satisfied FREE Dishwasher with any kitchen remodel $5000 or more!!

"They remodeled our bathroom and kitchen, the crew was very professional and friendly, the price was fair. Thank you Smart Construction Consultants for the beautiful results! Highly recommended!"

Josef Z on September 2019


Avatar for Golden Retrofit & Foundation Repair

Golden Retrofit & Foundation Repair

16116 Leadwell St.
5.00(
85
)

Golden Retrofit & Foundation Repair

16116 Leadwell St.
5.00(
85
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Golden Retrofit & Foundation Repair is the most innovative and forward thinking company in the business. We specialize in both foundation repair and replacement. From complex situations to simple repairs our experienced team always has a solution. We also have expertise in earthquake / seismic retrofitting and annually work closely with the EBB.

"Got quotes from many different companies for our EBB retrofit, and am very happy we went with Golden Retrofit. I met with Levy and he walked us through the whole process. The entire time, everyone we worked with at the company was prompt, knowledgeable, friendly, professional and so easy to work with. They made the process so easy. They even fixed a soft spot in our wood floors and did an incredible job. Highly recommend this company!"

Ryan S on July 2023

Golden Retrofit & Foundation Repair is the most innovative and forward thinking company in the business. We specialize in both foundation repair and replacement. From complex situations to simple repairs our experienced team always has a solution. We also have expertise in earthquake / seismic retrofitting and annually work closely with the EBB.

"Got quotes from many different companies for our EBB retrofit, and am very happy we went with Golden Retrofit. I met with Levy and he walked us through the whole process. The entire time, everyone we worked with at the company was prompt, knowledgeable, friendly, professional and so easy to work with. They made the process so easy. They even fixed a soft spot in our wood floors and did an incredible job. Highly recommend this company!"

Ryan S on July 2023

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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.

Hearing or feeling vibrations in your house can be unsettling, but there are a few possible causes for a vibrating noise in your wall or floor. Light bulbs and fixtures, circuit breakers, loose pipes, or faulty wiring could all cause vibrations. If you’re not sure what’s causing the vibrations, you can call a contractor to assess your home and narrow down the cause.

Ensure proper ventilation, fix leaks, and schedule regular pest inspections to protect your property.

Grounding is a great first step to prevent electrical shock, but you can take it further with GFCI outlets and AFCIs (arc fault circuit interrupters). In particular, AFCIs help protect against the type of electrical arcs that cause fires, like if a mouse chews on a wire or your laptop starts overheating at the wall. These are required in some areas of your home.

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.

The Castaic, CA homeowners’ guide to earthquake retrofitting services

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