earthquake gas shut -off valve inallation

What Is a Gas Earthquake Shut-Off Valve?

A gas earthquake shut-off valve is a mechanical safety device installed on your home’s gas meter or gas supply line. Its purpose is simple but vital: if an earthquake of magnitude 5.2 or higher occurs, the valve automatically shuts off your gas service to prevent hazardous leaks, fires, or explosions.

Once triggered, the valve remains closed until manually reset by a licensed professional—after a full inspection ensures that your gas lines and appliances are safe to use.


Benefits of a Seismic Gas Shut-Off Valve
• Prevents gas leaks, fires, and explosions during earthquakes
• Automatically activates when seismic activity is detected
• Complies with many Bay Area city and county building codes
• Provides peace of mind for you and your family


How Does a Seismic Shut-Off Valve Work?

Step 1: Earthquake Detection
The valve contains a mechanical sensor designed to detect ground shaking above a certain seismic threshold (typically 5.2+ magnitude).

Step 2: Automatic Gas Shut-Off
As the sensor is triggered, the valve instantly closes, stopping gas from flowing through broken pipes or fittings and reducing the risk of fire or explosion.

Step 3: Professional Reset After Inspection
After the event, a licensed plumber must perform a full safety inspection of your gas system. Once everything is cleared, the valve can be manually reset to resume gas service.


Why Install a Gas Seismic Shut-Off Valve?
• Enhanced Safety: Automatically protects your home during an earthquake by shutting off your gas supply before a leak can start.
• Regulatory Compliance: Required by many jurisdictions for new builds, ADUs, remodels, or gas system upgrades.
• Insurance Benefits: Some insurance carriers offer discounts when this safety feature is installed.
• Peace of Mind: It works 24/7, requires no power, and gives you added confidence in your home’s safety.

Installing a gas shut-off valve is a low-cost upgrade that can prevent high-cost disasters. It’s one of the smartest investments you can make if you live in an earthquake-prone area like the Bay Area.


Installation Details
• Location: Mounted on your home’s main gas line, typically near the meter.
• Time Required: Installation usually takes under two hours.
• Includes: System testing, reset training, and full compliance with local seismic and plumbing codes.
• Permits and Inspection: We handle all permits and provide city inspection support when required.


Protect Your Home Before the Next Earthquake

If you’re building, remodeling, or simply upgrading your home’s safety, a seismic gas shut-off valve is a smart, code-compliant investment that can prevent a major catastrophe. Repipe Champions Plumbing and Rooter Inc. installs earthquake valves throughout Santa Clara and San Mateo Counties with fast service, expert workmanship, and 0% APR financing options.

Call (408) 295-4309 to schedule installation or request a free quote today.