Top-rated earthquake retrofitting specialists.

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Avatar for ProStruct Engineering, Inc.

ProStruct Engineering, Inc.

450 Folsom Street,
5.00(
1
)
Approved Pro

ProStruct Engineering, Inc.

450 Folsom Street,
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested

ProStruct Engineering offers professional structural engineering services for residential building permits at reasonable prices. Our licensed and insured engineers have over 35 years of experience with 2,000+ completed projects, including new homes, additions, remodels, ADUs, retaining walls, load-bearing walls, seismic retrofits, foundation design, outdoor living spaces, and more. Our core values of integrity, responsibility, reliability, and ethics ensure affordable and high-quality services. We aim to make the home-building experience of California homeowners as stress-free as possible by delivering compliant and high-quality structural plans. We are committed to being cost-effective, with quick delivery in 2-3 weeks for most projects.

"Prompt customer service and delivery. Worked with a very knowledgeable and experienced structural engineer."

Karishma S on August 2023

ProStruct Engineering offers professional structural engineering services for residential building permits at reasonable prices. Our licensed and insured engineers have over 35 years of experience with 2,000+ completed projects, including new homes, additions, remodels, ADUs, retaining walls, load-bearing walls, seismic retrofits, foundation design, outdoor living spaces, and more. Our core values of integrity, responsibility, reliability, and ethics ensure affordable and high-quality services. We aim to make the home-building experience of California homeowners as stress-free as possible by delivering compliant and high-quality structural plans. We are committed to being cost-effective, with quick delivery in 2-3 weeks for most projects.

"Prompt customer service and delivery. Worked with a very knowledgeable and experienced structural engineer."

Karishma S on August 2023


RSB Construction Group Inc.

58 W Portal Ave, Unit 150
New on AngiNew on Angi
Approved Pro

RSB Construction Group Inc.

58 W Portal Ave, Unit 150
New on AngiNew on Angi
Approved Pro
4 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!


Universal Construction Company

161 Martin Place
4.71(
7
)
Approved Pro

Universal Construction Company

161 Martin Place
4.71(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
45 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 general contractor and home improvement services that are customizable to each individual project. We specialize in additions and bathroom remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships, and guarantee your satisfaction!

"He is very good, communicates well, and he is there when he says he will be and very thorough! I liked doing business with him! He explains everything that he will do before he does the job and he listens to my suggestions."

Marilyn B on June 2019

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 general contractor and home improvement services that are customizable to each individual project. We specialize in additions and bathroom remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships, and guarantee your satisfaction!

"He is very good, communicates well, and he is there when he says he will be and very thorough! I liked doing business with him! He explains everything that he will do before he does the job and he listens to my suggestions."

Marilyn B on June 2019


BLUE LADDER GENERAL CONSTRUCTION INC

5.00(
1
)

BLUE LADDER GENERAL CONSTRUCTION INC

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Remodeling business locally owned and operated we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Amilcar and his crew completed the project on time and did an excellent job. I highly recommend them."

Sandip P on November 2024

Remodeling business locally owned and operated we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Amilcar and his crew completed the project on time and did an excellent job. I highly recommend them."

Sandip P on November 2024


Mud Worx, Inc.

4.95(
20
)

Mud Worx, Inc.

4.95(
20
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Mud Worx, Inc. is your trusted partner for all your concrete needs. Whether you need concrete pouring, repair, resurfacing, or finishing, we have the skills, experience, and equipment to handle any project. We serve residential and commercial clients in Union City, CA and the surrounding areas. We pride ourselves on delivering high-quality workmanship, customer satisfaction, and competitive pricing. We use only the best materials and follow the industry standards and best practices. We can handle any concrete project, from driveways, patios, sidewalks, foundations, retaining walls, pool decks, and more. No matter the size or scope of your project, we will work with you to achieve your vision and goals. We offer estimates and consultations, and we guarantee our work. Contact Mud Worx, Inc. today at (510) 980-2117 and let us show you why we are the best concrete contractor in Union City, CA.

"It was repaired beautifully"

Edita D on August 2025

Mud Worx, Inc. is your trusted partner for all your concrete needs. Whether you need concrete pouring, repair, resurfacing, or finishing, we have the skills, experience, and equipment to handle any project. We serve residential and commercial clients in Union City, CA and the surrounding areas. We pride ourselves on delivering high-quality workmanship, customer satisfaction, and competitive pricing. We use only the best materials and follow the industry standards and best practices. We can handle any concrete project, from driveways, patios, sidewalks, foundations, retaining walls, pool decks, and more. No matter the size or scope of your project, we will work with you to achieve your vision and goals. We offer estimates and consultations, and we guarantee our work. Contact Mud Worx, Inc. today at (510) 980-2117 and let us show you why we are the best concrete contractor in Union City, CA.

"It was repaired beautifully"

Edita D on August 2025


Anchorhead Construction

211 Frederick St.
No reviews yet

Anchorhead Construction

211 Frederick St.
No reviews yet
2 years of experience

With 30+ combined years of construction experience in the Bay Area, Anchorhead Construction is the new standard of professional service and build quality. We Specialize in Seismic Retrofits, Voluntary Structural Reinforcement, and Foundation Replacement and Repair.

With 30+ combined years of construction experience in the Bay Area, Anchorhead Construction is the new standard of professional service and build quality. We Specialize in Seismic Retrofits, Voluntary Structural Reinforcement, and Foundation Replacement and Repair.


Gang Xuan, PESE Consulting Services

33170 Alvarado Niles Rd
5.00(
5
)

Gang Xuan, PESE Consulting Services

33170 Alvarado Niles Rd
5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a passionate AND professional group including two site inspectors and two in-office engineers to take care of your residential projects. We are specialized in and maintain a successful record of permit approval in residential remodeling/addition, canopy/carports, timber or concrete retaining walls, foundation/basement settlement reinforcement using micropiles, roof structural reinforcement for solar installation, rooftop or ground mounted solar structures as well as unpermitted structural violation issue supports. Pretty much everything about structural engineering from top structure down to the footing and soil supports. We offer very detail oriented work to provide thorough inspection to find the root cause of your concern or structural drawing set detailed enough to win jurisdiction permit approval the next day after submission (Footnote 1). Customer satisfaction is all we care about. We like hardcore structural projects where other engineers might like to avoid. We are confident in our structural/civil engineering knowledge in solving the complex engineering issues with well addressed drawings and calculations. We running the business with no middle agents which gives us low overhead cost and enables our low service bids to your jobs. The streamline process using smart devices such as Bluetooth or drone which convey the field info direct to the office engineer, help us achieve a 2-3 weeks turnaround for a typical residential work. We sincerely look for the opportunity to work with you to resolve your project needs as well as to demonstrate our quality work to win your trust. Thanks Footnote 1: the next day canopy approval only happens once in a south bay jurisdiction.

"It went very well. Mr. Xuan has been professional and has offered us great information. We are very thankful to Mr. Xuan for his work and suggestion."

Charles K on September 2024

We are a passionate AND professional group including two site inspectors and two in-office engineers to take care of your residential projects. We are specialized in and maintain a successful record of permit approval in residential remodeling/addition, canopy/carports, timber or concrete retaining walls, foundation/basement settlement reinforcement using micropiles, roof structural reinforcement for solar installation, rooftop or ground mounted solar structures as well as unpermitted structural violation issue supports. Pretty much everything about structural engineering from top structure down to the footing and soil supports. We offer very detail oriented work to provide thorough inspection to find the root cause of your concern or structural drawing set detailed enough to win jurisdiction permit approval the next day after submission (Footnote 1). Customer satisfaction is all we care about. We like hardcore structural projects where other engineers might like to avoid. We are confident in our structural/civil engineering knowledge in solving the complex engineering issues with well addressed drawings and calculations. We running the business with no middle agents which gives us low overhead cost and enables our low service bids to your jobs. The streamline process using smart devices such as Bluetooth or drone which convey the field info direct to the office engineer, help us achieve a 2-3 weeks turnaround for a typical residential work. We sincerely look for the opportunity to work with you to resolve your project needs as well as to demonstrate our quality work to win your trust. Thanks Footnote 1: the next day canopy approval only happens once in a south bay jurisdiction.

"It went very well. Mr. Xuan has been professional and has offered us great information. We are very thankful to Mr. Xuan for his work and suggestion."

Charles K on September 2024


Geico Builders

1901 Harrison Street
5.00(
26
)

Geico Builders

1901 Harrison Street
5.00(
26
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Geico Builders specializes in meeting your expectations before, during, and after the project is complete. Our most upstanding quality is our accountability--you can expect us to own the work we complete for your home. Of course, we know accountability means nothing without proof, which is why we are happy to offer a 2-year workmanship warranty to all of our clients. This is a rare quality for this industry, but we wanted to prove to you that we stand by our craftsmanship through our home remodeling construction services. Every Crew at Geico Builders has been professionally trained and will treat your home with integrity and respect.

"We used Geico Builders for our bathroom remodel. We collected a few quotes, and we felt like the quote for the value was the best. I appreciated the clear scope and payment schedule. We started with a tiny bathroom and had plans to remove a couple of walls to make it larger. Leading up to demo day, our project manager Mila and the team pulled permits and helped us understand which finishes/materials we needed to order. I had a clear idea of our design vision, so I didn't need a lot of assistance there, but I found the 3D rendering helpful to see. Our project took a little over 5 weeks. The foreman David and crew did a great job. I was many specific requests, and I felt like David always did his best to incorporate my requests. We had a few hiccups, as with any project. We ran out of tile, which caused a small delay. The crew also misplaced some of our shower fixtures and we had to reorder them. The team was able to cover the cost of these, which I appreciated. I liked how we had a group to stay on top of updates. There were times when I would have liked more communication regarding the crew's schedule, delays, etc. but overall, I felt like my questions were always answered. Love my new bathroom, thank you."

Mae B on September 2025

Geico Builders specializes in meeting your expectations before, during, and after the project is complete. Our most upstanding quality is our accountability--you can expect us to own the work we complete for your home. Of course, we know accountability means nothing without proof, which is why we are happy to offer a 2-year workmanship warranty to all of our clients. This is a rare quality for this industry, but we wanted to prove to you that we stand by our craftsmanship through our home remodeling construction services. Every Crew at Geico Builders has been professionally trained and will treat your home with integrity and respect.

"We used Geico Builders for our bathroom remodel. We collected a few quotes, and we felt like the quote for the value was the best. I appreciated the clear scope and payment schedule. We started with a tiny bathroom and had plans to remove a couple of walls to make it larger. Leading up to demo day, our project manager Mila and the team pulled permits and helped us understand which finishes/materials we needed to order. I had a clear idea of our design vision, so I didn't need a lot of assistance there, but I found the 3D rendering helpful to see. Our project took a little over 5 weeks. The foreman David and crew did a great job. I was many specific requests, and I felt like David always did his best to incorporate my requests. We had a few hiccups, as with any project. We ran out of tile, which caused a small delay. The crew also misplaced some of our shower fixtures and we had to reorder them. The team was able to cover the cost of these, which I appreciated. I liked how we had a group to stay on top of updates. There were times when I would have liked more communication regarding the crew's schedule, delays, etc. but overall, I felt like my questions were always answered. Love my new bathroom, thank you."

Mae B on September 2025


JWL Builders

No reviews yet

JWL Builders

No reviews yet
15 years of experience

Licensed and insured GC in the bay area. We are a full service general contraction company that specialize in Foundation, Framing and Finishes Our services include but not limited to full house remodels, new construction, framing, structural, retrofits, kitchens, bathrooms.

Licensed and insured GC in the bay area. We are a full service general contraction company that specialize in Foundation, Framing and Finishes Our services include but not limited to full house remodels, new construction, framing, structural, retrofits, kitchens, bathrooms.


BayBuilders of SJ

14938 Camden Avenue
5.00(
11
)

BayBuilders of SJ

14938 Camden Avenue
5.00(
11
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

If you're looking for high quality home remodeling services, look no further! Our team of experienced professionals will work tirelessly to ensure your home looks and feels its very best. With our expertise and knowledge, we'll make sure your remodeling project is done to the highest of standards. From kitchen remodeling and bathroom remodeling to complete home renovation, we've got the solutions to fit your needs. Our services also include energy-efficient improvements and green solutions. We strive to provide outstanding customer service for each and every client. Contact us today for further information and to receive your free estimate. Our value proposition: Punctuality: No matter what you need - whether it's a free quote, the first day on the job, or the last, we show up on time. Affordability: Our services are investments to your home and your well-being. But that doesn't mean they have to be expensive. Although we use high-quality materials, we are efficient enough to be able to charge affordable, competitive rates. Integrity: It's simple: no hidden fees, full transparency, free quotes, personable employees. We take this just as seriously as the quality of work. Quality: We use high-quality materials and only the most modern and effective methods for producing beautiful results. But don't just listen to us... listen to our customers! (References available)

"Sam and David were amazing! They were so professional and communicated every step of the way. They completed my job on time and within budget. Would definitely use them again."

Lynn G on July 2023

If you're looking for high quality home remodeling services, look no further! Our team of experienced professionals will work tirelessly to ensure your home looks and feels its very best. With our expertise and knowledge, we'll make sure your remodeling project is done to the highest of standards. From kitchen remodeling and bathroom remodeling to complete home renovation, we've got the solutions to fit your needs. Our services also include energy-efficient improvements and green solutions. We strive to provide outstanding customer service for each and every client. Contact us today for further information and to receive your free estimate. Our value proposition: Punctuality: No matter what you need - whether it's a free quote, the first day on the job, or the last, we show up on time. Affordability: Our services are investments to your home and your well-being. But that doesn't mean they have to be expensive. Although we use high-quality materials, we are efficient enough to be able to charge affordable, competitive rates. Integrity: It's simple: no hidden fees, full transparency, free quotes, personable employees. We take this just as seriously as the quality of work. Quality: We use high-quality materials and only the most modern and effective methods for producing beautiful results. But don't just listen to us... listen to our customers! (References available)

"Sam and David were amazing! They were so professional and communicated every step of the way. They completed my job on time and within budget. Would definitely use them again."

Lynn G on July 2023

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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.

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.

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.

Many homeowners want to know whether earthquake retrofitting is tax deductible. Because it’s often considered a capital improvement, you usually can’t deduct it. In some cases and locations, you may qualify for tax incentives, but you’ll need to talk to a tax professional or the Internal Revenue Service (IRS) about your specific circumstances. You may also be able to find grant money for seismic upgrades, which can lower the cost of your insurance premiums and save money over time.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Colma, CA homeowners’ guide to earthquake retrofitting services

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