Are seismic gas shut-off valves required in California?

• <div><p>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 <a href="https://codelibrary.amlegal.com/codes/los_angeles/latest/lamc/0-0-0-186081">Los Angeles Municipal Code</a>, 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.</p></div>

Will a seismic shut-off valve save me money on earthquake insurance?

• <div><p>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. </p></div>

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Q: Are brick houses safer in an earthquake?

• <div><p>According to the <a href="https://www.earthquakecountry.org/step4/urmwalls/#:~:text=Houses%20built%20of%20unreinforced%20masonry,and%20the%20roof%20is%20critical.">Earthquake Country Alliance</a>&mdash;a public and private alliance in California that works to improve earthquake and tsunami readiness&mdash;reports that unreinforced masonry, such as stone, bricks, and hollow clay tiles, is more susceptible to earthquake damage. The mortar between bricks isn&rsquo;t as stable as other building materials and methods.</p></div>

Q: How long does an earthquake retrofit take?

• <div><p>Projects will vary based on size and scope, but an average earthquake retrofit takes between <b>two weeks and two months</b>. This includes the initial evaluation and plan, bidding and contract paperwork, permitting and approval process, actual work, and final inspection. Your contractor should give you a more accurate time estimate for your specific project, and they may be able to estimate how long the permitting process will take for your area.</p></div>

Q: What Is a gas shut-off valve for earthquakes?

• <div><p>Earthquake gas shut-off valves, or seismic gas shut-off valves, are safety devices that attach to your natural gas line. When an earthquake hits, the valve automatically turns off the flow of gas. Earthquake gas shut-off valves can prevent gas leaks, which are especially dangerous after a quake due to the risk of fire and explosion.</p></div>

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Verified Reviews for Earthquake Retrofitting pros in Neversink, NY

*The Angi rating for Earthquake Retrofitting companies in Neversink, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Earthquake Retrofitting needs.

*The HomeAdvisor rating for Earthquake Retrofitting companies in Neversink, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Earthquake Retrofitting needs.

Last update on December 13, 2025

Reviewed in April 2024
You couldnt find a better tree service. They went above and beyond in removing my trees and were very meticulous in cleaning up everything. I also recommend them to two of my friends and they did an excellent job there too. They did all of this at very reasonable prices .
Backwoods Tree Service
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Reviewed in November 2023
Brendon was professional and helpful in cleaning up our yard this fall when we were unexpectedly not able to do it ourselves. He gave us a fair price and completed the job in a timely manner. Highly recommend using Frank's Tree Service.
Franks Tree Service
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Reviewed in October 2023
I highly recommend Alludi Associates! Alex and his team were professional, communicative, and did an excellent job painting my house. I had various projects in need of attention and Alex addressed them all promptly and honestly. He was willing to help with any project, big or small, and answered...
Alludi Associates
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Reviewed in February 2023
Ken and his crew were hired to refinish and add trim to our 100-year-old floor. Ken was helpful in explaining our options as we were contemplating replacing, but he assured us we would like the finished product and the trim would look original and he met our expectations and some. He was on...
AJ Floor Service
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Reviewed in January 2023
Dave replaced our water heater which was connected to our oil fired boiler, with a new electric hot water tank. We had no problems. Very professional installation.
Dave's Plumbing
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Reviewed in August 2022
Was waiting to see if the ground beetles (in the 1,000's) would finally disappear. Dread going down the basement as they come every year. I am praying this is the last time I will see them. Did not reply to you until I thought I could give you the most honest answer. They are very efficient...
Meerkat Pest Control, LLC
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Reviewed in March 2022
Came quickly..did everything they promised.
Dunbar Pest Control
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Reviewed in October 2021
Justin is a perfectionist, his craftmanship was apparent as my fence was not a run of the mill installation. He communicated very well along the way and I highly recommend him, he has integrity and his engineering background did come in handy during the project. He left the job site spotless.
JJ Michaels Construction Services
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Reviewed in May 2021
This team was fast and reliable! Received reasonable quote in the morning, job scheduled for the afternoon! Tree trimming of large maple and multiple tall pine trees. The site was cleaned up better than it was before. Highly recommend them for your job. Thanks for the service. Ernie &...
JG Lawn & Snow
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Reviewed in April 2021
Did fast work with integrity. Maintained professionalism and sent photos of work. Did research for materials on Easter Sunday...Discussed details of proposal only with me....the client...and respected all terms of contract. I am very pleased.
Hann's On Home Improvement
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Earthquake Retrofitting questions, answered by experts

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.

Projects will vary based on size and scope, but an average earthquake retrofit takes between two weeks and two months. This includes the initial evaluation and plan, bidding and contract paperwork, permitting and approval process, actual work, and final inspection. Your contractor should give you a more accurate time estimate for your specific project, and they may be able to estimate how long the permitting process will take for your area.

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.

Earthquake gas shut-off valves, or seismic gas shut-off valves, are safety devices that attach to your natural gas line. When an earthquake hits, the valve automatically turns off the flow of gas. Earthquake gas shut-off valves can prevent gas leaks, which are especially dangerous after a quake due to the risk of fire and explosion.

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.

The Neversink, NY homeowners’ guide to earthquake retrofitting services

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

See all articles

Angi
•
Oct 22, 2025Oct 22, 2025
How Much Does It Cost to Repair Earthquake Damage? [2025 Data]
Discover how much it costs to repair earthquake damage. Learn about average costs, key factors, and ways to save on earthquake repairs for your home.
Timothy Moore
•
Dec 3, 2025Dec 3, 2025
How Much Does Earthquake Valve Installation Cost? [2025 Data]
A seismic shut-off valve stops the flow of gas during an earthquake, protecting your home from fires and explosions. Here’s what your earthquake valve installation cost will look like.
Angi
•
Nov 4, 2025Nov 4, 2025
How Much Does an Earthquake Retrofit Cost? [2025 Data]
Earthquake retrofit costs vary based on home size, location, and project scope. Learn what impacts your price and how to budget for a safer, more secure home.
Mizuki Hisaka
•
Aug 26, 2024Aug 26, 2024
What Is an Earthquake Gas Shut-Off Valve and Do You Need One?
In a seismic event, an earthquake gas shut-off valve could stop gas leaks and save your life. Learn more about its costs, installation, and benefits.
Stacey L. Nash
•
Jul 25, 2024Jul 25, 2024
Earthquake Retrofit 101: Everything You Need to Know About Prepping a Home for a Seismic Event
If you live near a fault line, your home may need an earthquake retrofit. Find out what you need to know about the process, from costs to who you should hire.
Stephanie Mickelson
•
Jul 23, 2024Jul 23, 2024
Who Should I Hire for Earthquake Retrofitting?
If you live in an older home in an area prone to seismic activity, you likely need to hire a seismic retrofitting company to protect your home from earthquakes.