Top-rated earthquake retrofitting specialists.

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There are 5 highly-rated local earthquake retrofitting specialists.

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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon15
    Verified earthquake retrofitting services reviews

Find Earthquake retrofitting specialists in Aliso Viejo

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
157 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 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
207 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


Avatar for Alpha Structural

Alpha Structural

8334 Foothill Blvd
5.00(
11
)
Approved Pro

Alpha Structural

8334 Foothill Blvd
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
50 local quotes requested

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


Merco Earthmoving and Paving

No reviews yet

Merco Earthmoving and Paving

No reviews yet
6 years of experience

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.


Professional Foundation Repair

7441 Anaconda Avenue
5.00(
6
)

Professional Foundation Repair

7441 Anaconda Avenue
5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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


FortiFi

11111 Santa Monica Blvd
No reviews yet

FortiFi

11111 Santa Monica Blvd
No reviews yet
10 years of experience

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.


Optimum Seismic, Inc.

5508 S Santa Fe Ave
No reviews yet

Optimum Seismic, Inc.

5508 S Santa Fe Ave
No reviews yet

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


Home Renew 360

1500 W Carson St
4.72(
72
)

Home Renew 360

1500 W Carson St
4.72(
72
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Home Renew 360 is your complete home improvement company. We offer many remodeling services that will help you and your family create the home of your dreams in an efficient, sustainable, healthy manner. Our company has over 30 years of combined experience providing exemplary service to home owners in the greater Southern California area. Home Renew 360 has the expertise and experience to apply our craftsmanship to any size remodeling project. Our goal is to make sure the job is done right and on time.

"Our experience working with Home Renew 360 was amazing! Our project manager Idan Mizrahi was nothing but helpful, knowledgeable, and readily available throughout the process of replacing our roof. He sat down and explained the entire process at length and addressed any of our concerns all the way through to the end of the project. We look forward to working with them for any future home remodeling needs."

Danielle B on March 2025

Home Renew 360 is your complete home improvement company. We offer many remodeling services that will help you and your family create the home of your dreams in an efficient, sustainable, healthy manner. Our company has over 30 years of combined experience providing exemplary service to home owners in the greater Southern California area. Home Renew 360 has the expertise and experience to apply our craftsmanship to any size remodeling project. Our goal is to make sure the job is done right and on time.

"Our experience working with Home Renew 360 was amazing! Our project manager Idan Mizrahi was nothing but helpful, knowledgeable, and readily available throughout the process of replacing our roof. He sat down and explained the entire process at length and addressed any of our concerns all the way through to the end of the project. We look forward to working with them for any future home remodeling needs."

Danielle B on March 2025


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

An earthquake retrofit is essential for safety in an earthquake-prone area. Without proper retrofitting, your home is at risk of sliding off the foundation, shifting, or collapsing.

You may also require a retrofit if your home was built before 1980 when building codes began requiring reinforcing, bracing, and bolting for new construction. You may not be eligible for insurance to help pay for earthquake-related damages without a retrofit.

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.

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.

Even if you invested in the cost of a gas shut-off valve for your oven and other appliances, it’s a good idea to add a seismic shut-off valve as an extra safety measure. 

Gas shut-off valves for appliances are manual, meaning someone has to cut off the flow of gas. This leaves room for error, as you might not be home or might be too distracted to think about gas lines during an earthquake. An earthquake valve is automatic and will protect your home from gas-related disasters in the event of an earthquake.

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

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The Aliso Viejo, CA homeowners’ guide to earthquake retrofitting services

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