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Avatar for Golden Retrofit

Golden Retrofit

5.00(
76
)
Approved Pro

Golden Retrofit

5.00(
76
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
2016 years of experience

Golden Retrofit & Foundation Repair is the most innovative and forward thinking company in the business. We specialize in foundation repair, earthquake retrofitting, foundation replacement and leveling. From complex situations to simple repairs, our experienced team always has a solution.

"I started with a list of over 50 potential companies and knew none of them. I brought my list down to 6 based on experience, license number and reviews. I intended to have 4 of those give me a bid but after Golden Retrofit (bid#2) I knew I was done. Selina knew so much more about the EBB process then the other 5 companies I spoke with. Andy gave me such a good Inspection and knowledge of my crawl space that I knew he crawled through every inch of my space. I've been under my house dozens and dozens of times. Kristina kept me informed of every step and handled my Deposit as well as Final Payment. Jordan was with me prior to the City Inspection and provided quickly each view the City Inspector needed to see. The Inspection Process was so Professional I knew they had down this before. I can't say enough about my experience with Golden Retrofit. In my humble opinion they Are The Best!"

Thomas B on February 2025

Golden Retrofit & Foundation Repair is the most innovative and forward thinking company in the business. We specialize in foundation repair, earthquake retrofitting, foundation replacement and leveling. From complex situations to simple repairs, our experienced team always has a solution.

"I started with a list of over 50 potential companies and knew none of them. I brought my list down to 6 based on experience, license number and reviews. I intended to have 4 of those give me a bid but after Golden Retrofit (bid#2) I knew I was done. Selina knew so much more about the EBB process then the other 5 companies I spoke with. Andy gave me such a good Inspection and knowledge of my crawl space that I knew he crawled through every inch of my space. I've been under my house dozens and dozens of times. Kristina kept me informed of every step and handled my Deposit as well as Final Payment. Jordan was with me prior to the City Inspection and provided quickly each view the City Inspector needed to see. The Inspection Process was so Professional I knew they had down this before. I can't say enough about my experience with Golden Retrofit. In my humble opinion they Are The Best!"

Thomas B on February 2025


Avatar for The Foundation Works

The Foundation Works

4.93(
162
)
Approved Pro

The Foundation Works

4.93(
162
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
2003 years of experience

Foundation inspection, repair, and replacement services for Los Angeles and surrounding cities for more than 20 years. With 800+ 5-star reviews online, we continue to provide affordable foundation inspection, foundation repair, foundation upgrades, foundation replacement, earthquake retrofitting, house bolting for the greater Los Angeles area; including affordable upgrades to your foundation. We pride ourselves in repairing only what your house foundation needs. We offer foundation upgrade services to get your house to full earthquake standards for the Los Angeles area without necessarily having to rebuild your full foundation, saving you thousands in unnecessary repair if at all possible.

"Great Team. Did a pro job."

Darryl S on June 2025

Foundation inspection, repair, and replacement services for Los Angeles and surrounding cities for more than 20 years. With 800+ 5-star reviews online, we continue to provide affordable foundation inspection, foundation repair, foundation upgrades, foundation replacement, earthquake retrofitting, house bolting for the greater Los Angeles area; including affordable upgrades to your foundation. We pride ourselves in repairing only what your house foundation needs. We offer foundation upgrade services to get your house to full earthquake standards for the Los Angeles area without necessarily having to rebuild your full foundation, saving you thousands in unnecessary repair if at all possible.

"Great Team. Did a pro job."

Darryl S on June 2025


Avatar for MVP Remodeling

MVP Remodeling

5.00(
47
)
Approved Pro

MVP Remodeling

5.00(
47
)
Approved Pro
Super Service Award
Customers say: Quick response
2007 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.

"Joseph and the team at MVP Remodeling did an incredible job on our backyard. We added a pergola, pavers, and lighting, and everything looks amazing. Joseph was organized and easy to work with, and his crew was respectful and clean. We finally have a backyard we’re proud of. Highly recommend MVP!"

Richard S on July 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.

"Joseph and the team at MVP Remodeling did an incredible job on our backyard. We added a pergola, pavers, and lighting, and everything looks amazing. Joseph was organized and easy to work with, and his crew was respectful and clean. We finally have a backyard we’re proud of. Highly recommend MVP!"

Richard S on July 2025


Avatar for MVP Remodeling, Inc.

MVP Remodeling, Inc.

5.00(
17
)
Approved Pro

MVP Remodeling, Inc.

5.00(
17
)
Approved Pro
Super Service Award
Customers say: Quick response
2007 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 Alpha Structural, Inc.

Alpha Structural, Inc.

4.76(
147
)
Approved Pro

Alpha Structural, Inc.

4.76(
147
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
1992 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.

"Erinn was my initial contact and he gave a very through and fair estimate. We had structural work done to support floor joists and large beams under the garage that needed replacing. Ernesto and his team, Julio, Salvatore and Gilder worked tirelessly to complete the work and were respectful, punctual, informative and good humoured throughout the entire process. I would not hesitate to use them again or recommend them to others. A really great company!!"

Laurie C on August 2023

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.

"Erinn was my initial contact and he gave a very through and fair estimate. We had structural work done to support floor joists and large beams under the garage that needed replacing. Ernesto and his team, Julio, Salvatore and Gilder worked tirelessly to complete the work and were respectful, punctual, informative and good humoured throughout the entire process. I would not hesitate to use them again or recommend them to others. A really great company!!"

Laurie C on August 2023


Avatar for VULCAN BUILD INC

VULCAN BUILD INC

5.00(
23
)
Approved Pro

VULCAN BUILD INC

5.00(
23
)
Approved Pro
Customers say: Quick response
2018 years of experience
Free onsite estimate

VULCAN BUILD INC 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.

"I recently had a fantastic experience with Vulcan company. Michael, the project manager, was top-notch. They worked on my bathroom, bedroom, kitchen, living room, and porch. The project was really budget-friendly, and their communication was excellent. They kept me in the loop the entire time with no surprises. The work quality was outstanding, with great attention to detail. Michael and his team were professional and efficient!"

Margot C on August 2025

VULCAN BUILD INC 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.

"I recently had a fantastic experience with Vulcan company. Michael, the project manager, was top-notch. They worked on my bathroom, bedroom, kitchen, living room, and porch. The project was really budget-friendly, and their communication was excellent. They kept me in the loop the entire time with no surprises. The work quality was outstanding, with great attention to detail. Michael and his team were professional and efficient!"

Margot C on August 2025


Avatar for American Home Improvement, Inc.

American Home Improvement, Inc.

4.57(
167
)
Approved Pro

American Home Improvement, Inc.

4.57(
167
)
Approved Pro
Super Service Award
Customers say: Quality work
2004 years of experience
Free onsite estimate

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.

"We used American Home Improvement for a full bathroom remodeling update, and they did a wonderful job. The team worked neatly, kept us informed, and finished the project right when they said they would. The new shower layout, vanity, and flooring completely changed the feel of the room. It now looks brighter and much more functional. I really appreciate their honesty, work ethic, and attention to small details."

Daryl D on November 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.

"We used American Home Improvement for a full bathroom remodeling update, and they did a wonderful job. The team worked neatly, kept us informed, and finished the project right when they said they would. The new shower layout, vanity, and flooring completely changed the feel of the room. It now looks brighter and much more functional. I really appreciate their honesty, work ethic, and attention to small details."

Daryl D on November 2025


Avatar for HIC Builders, Inc.

HIC Builders, Inc.

5.00(
11
)
Approved Pro

HIC Builders, Inc.

5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2017 years of experience

HIC ( Home Ideas and Construction ) is a Family owned Business we are construction company. We look forward to coming out to your home and exploring the best, most efficient and budget conscious way we can upgrade you home. Specialize in Remodeling kitchens, bathrooms, pavers, outdoor landscape, patio enclosures, painting and ADU's to garage conversion from blueprinting to city permits we can walk you thru . We know that you are putting your faith and trust in your contractor, we work hard to earn your trust and satisfaction. Our team of experts offers you the latest modern and eco-friendly, materials and aesthetic work that you can imagine.

"ADU construction Plumbing, electrical, drywall, Painting"

Elbia M on February 2025

HIC ( Home Ideas and Construction ) is a Family owned Business we are construction company. We look forward to coming out to your home and exploring the best, most efficient and budget conscious way we can upgrade you home. Specialize in Remodeling kitchens, bathrooms, pavers, outdoor landscape, patio enclosures, painting and ADU's to garage conversion from blueprinting to city permits we can walk you thru . We know that you are putting your faith and trust in your contractor, we work hard to earn your trust and satisfaction. Our team of experts offers you the latest modern and eco-friendly, materials and aesthetic work that you can imagine.

"ADU construction Plumbing, electrical, drywall, Painting"

Elbia M on February 2025


Avatar for Prosper Construction Development, Inc.

Prosper Construction Development, Inc.

4.88(
38
)
Approved Pro

Prosper Construction Development, Inc.

4.88(
38
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
2013 years of experience

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


Avatar for Alpha Structural

Alpha Structural

5.00(
11
)
Approved Pro

Alpha Structural

5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2000 years of experience

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

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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.

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.

Some cities or states may require you to have an earthquake gas shut-off valve. Your insurance provider may also have requirements for installing this valve. Even if you don’t have to have one by law, it’s wise to have a natural gas plumber install one anyway. These devices can be lifesaving and prevent fires or explosions in the event of a gas leak.

Costs vary as much as timelines. The average earthquake retrofit costs between $3,500 and $8,700. However, homes on hillsides, large homes, and those with rooms over garages can cost up to $12,000 or more. Make sure to get a few estimates to compare the cost and services.

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.

The Northridge, CA homeowners’ guide to earthquake retrofitting services

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

What do you need done? We’ll find top pros.
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