Top-rated earthquake retrofitting specialists.

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TRUSTED BY GLENDORA, CA HOMEOWNERS

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

Find Earthquake retrofitting specialists in Glendora

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
217 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 The Foundation Works

The Foundation Works

2411 W Empire Ave
4.87(
210
)
Approved Pro

The Foundation Works

2411 W Empire Ave
4.87(
210
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
152 local quotes requested

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 HIC Builders, Inc.

HIC Builders, Inc.

13455 Ventura Blvd
5.00(
11
)
Approved Pro

HIC Builders, Inc.

13455 Ventura Blvd
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1035 local quotes requested

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 Hexagon Construction

Hexagon Construction

13437 Ventura Blvd
5.00(
10
)
Approved Pro

Hexagon Construction

13437 Ventura Blvd
5.00(
10
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
4 years of experience

Hexagon Construction our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"This was my second project with HEXAGON CONSTRUCTION and by far the largest and most complex. (Replacing an old, clay tile roof on a three story house is no job for a rookie.) HEXAGON’s owner, Eli Vatkin, is what everyone should be looking for in a contractor. He’s knowledgeable, reasonably priced, trustworthy, responds promptly to any concerns that you have during the project, keeps you apprised of its progress, finishes on time, and generally aims to please. His contracts were straightforward and “by the book.” On top of that, he’s a genuinely nice guy. Rarely will you find all these qualities in a contractor—and I’ve been around long enough to know. "

Karen B on January 2025

Hexagon Construction our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"This was my second project with HEXAGON CONSTRUCTION and by far the largest and most complex. (Replacing an old, clay tile roof on a three story house is no job for a rookie.) HEXAGON’s owner, Eli Vatkin, is what everyone should be looking for in a contractor. He’s knowledgeable, reasonably priced, trustworthy, responds promptly to any concerns that you have during the project, keeps you apprised of its progress, finishes on time, and generally aims to please. His contracts were straightforward and “by the book.” On top of that, he’s a genuinely nice guy. Rarely will you find all these qualities in a contractor—and I’ve been around long enough to know. "

Karen B on January 2025


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 Earthquake Bracing, Inc.

Earthquake Bracing, Inc.

3548 Ironweed Drive
4.98(
49
)
Approved Pro

Earthquake Bracing, Inc.

3548 Ironweed Drive
4.98(
49
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
13 years of experience

Earthquake Bracing Incorporated has a single mission, to BRACE AND BOLT RAISED FOUNDATION HOMES, (SLAB ON GRADE HOMES CANNOT BE BRACED) providing families with secure structures that can weather the violent motion of earthquakes. Our sense of accomplishment after retrofitting your home is complemented by your secure peace of mind knowing you have a safer home. We brace and bolt raised foundation homes to prevent them from sliding off their concrete foundations during earthquakes. We also retrofit soft-story apartment buildings and businesses. Read the Google Reviews for Earthquake Bracing Incorporated

"Tim handled everything in a prompt and professional manner."

Todd M on September 2024

Earthquake Bracing Incorporated has a single mission, to BRACE AND BOLT RAISED FOUNDATION HOMES, (SLAB ON GRADE HOMES CANNOT BE BRACED) providing families with secure structures that can weather the violent motion of earthquakes. Our sense of accomplishment after retrofitting your home is complemented by your secure peace of mind knowing you have a safer home. We brace and bolt raised foundation homes to prevent them from sliding off their concrete foundations during earthquakes. We also retrofit soft-story apartment buildings and businesses. Read the Google Reviews for Earthquake Bracing Incorporated

"Tim handled everything in a prompt and professional manner."

Todd M on September 2024


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
60 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


Avatar for Toms-co.com

Toms-co.com

Based In
5.00(
2
)

Toms-co.com

Based In
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Making Southen California safe again. Consult with Tom on any project with a no obligation site visit and estimate for completion of the work. Over 25 years of residential ane commercial construction experience. We offer residential and commercial abatement and construction services using limited access equipment, fantastic clean up and amazing dependability. Our technicians have over 20 years of construction experience.

"Everything was finished efficiently and quickly while working with Tom and his team. We felt very taken care of because they walked us through each stage in the process. This situation was really stressful for our family but we felt like the stress was lifted with the help of Tom and his team. Very grateful for their help and quick work."

Baylee T on September 2024

Making Southen California safe again. Consult with Tom on any project with a no obligation site visit and estimate for completion of the work. Over 25 years of residential ane commercial construction experience. We offer residential and commercial abatement and construction services using limited access equipment, fantastic clean up and amazing dependability. Our technicians have over 20 years of construction experience.

"Everything was finished efficiently and quickly while working with Tom and his team. We felt very taken care of because they walked us through each stage in the process. This situation was really stressful for our family but we felt like the stress was lifted with the help of Tom and his team. Very grateful for their help and quick work."

Baylee T on September 2024


LA Creative Design

22287 Mulholland Hwy #358
No reviews yet

LA Creative Design

22287 Mulholland Hwy #358
No reviews yet
3 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.

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.

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Earthquake Retrofitting questions, answered by experts

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.

Almost all new buildings in California need an earthquake shut-off valve. The requirements for an earthquake gas shut-off valve (and who can install it) depend on where you live. For example, according to the Los Angeles Municipal Code, you’re required to hire a licensed contractor to install one whenever you build, sell, or renovate a home. Check with your local building department for your city’s laws on installing, permitting, and inspecting earthquake shut-off valves.

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.

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.

According to the Earthquake Country Alliance—a public and private alliance in California that works to improve earthquake and tsunami readiness—reports that unreinforced masonry, such as stone, bricks, and hollow clay tiles, is more susceptible to earthquake damage. The mortar between bricks isn’t as stable as other building materials and methods.

The Glendora, CA homeowners’ guide to earthquake retrofitting services

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