A Gas Lock

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Gas Lock Inc. in beautiful San Rafael is your Source for Gas Valves and Water Heaters.
Fire Safety Disaster & Earthquake Preparedness Gas Line Rupture Protection
Protect Your Family and Property from Deadly Gas Fires and Explosions with the GasLock Inc. Automatic Shut-off Valves.
Protect your home and appliances in the event of an emergency with gas shut off valves from Gas Lock. Let our friendly and experienced professionals install shut off valves on your gas appliances. These devices detect a break in the line and shut off all of your appliances. These valves allow your appliances to continue to perform perfectly, and our products protect you and your community better than most devices. Our flow valves work better than seismic valves, although seismic valves are available if you prefer, and we install a complete system for the price that most places charge for the just the primary connection.
We offer free safety inspections.

Gas Lock Inc. installs gas excess flow valves that automatically protect homes and lives while preserving natural resources. If your appliances fall over, our valves continue to work while the competition's devices do not. When most companies simply install a protection device on the main gas line that comes into the structure, we go beyond that, offering appliance specific valves on each appliance. Many insurance companies provide rate reductions if the unit is installed. From our manifold systems that provide additional protection and require less gas to the most popular fire safety equipment in new homes, we sell, install, and service all your emergency shut off valve needs.

The proven benefits of excess flow valves

Shut off the gas in your home's service line if it breaks, reducing the chance of fire and explosion.
Works on both natural and propane gas systems.
Can be installed on gas meters and all household gas appliances (water heater, furnace, ovens/stoves, dryers, etc).
Protect your home 24 hours a day, 365 days a year, whether you're home or not.
Works on your home's gas line the way your home's master circuit breaker works on the electrical system.
Only a one time low cost investment of protection.

Installs easily in minutes.
Does not false trip and automatically resets after the gas line is repaired.
Features 100% factory tested, patented proprietary technology.
Are manufactured by an affiliate of UMAC, Inc., for more than 25 years, the world's leader in Excess Flow Valves used by gas companies.
Have a limited lifetime warranty

Protect your home with fire safety gas valves that increase your emergency, disaster, and hurricane preparedness.
Contact us in San Rafael, California, for more details.

We service all types of water heaters and provide you a complete solution for your plumbing and safety needs. We can expertly install your new water heater or upgrade it for maximum safety. Please download this PDF and keep it near your water heater. It provides useful information and instructions in case of an emergency. waterheatersafety.pdf

Seismic Valves: These less stableshut off valves shut your entire system down when the internal device receives a jolt or swings.
Flow Valves: By the flow of gas, each valve is rated for the amount of usage for each home, and this device only shuts off the gas when you really want it to be shut off.
Manifold System: This is where all the lines separate to each of the appliances. Our manufactured unit handles up to six appliances at a time, and on that manifold, we mount each of our appliances.