By municipal code, all gas lines have shut-offs located by the appliance that they are connected to. Of course, this makes sense. When I’m doing a kitchen remodel one of the first things that I do is to turn off these lines and then cap them. However, there are times when the valve is frozen and impossible to turn. This can be the case when I am remodeling a kitchen that hasn’t been updated in 20 years.
In this situation, it is necessary to close the main gas inlet valve to the house. Once this is turned off the kitchen appliances can be disconnected, and their local gas feed-lines can be capped. After they are secure the gas supply can be turned back on for the home’s other appliances, like the water heater and furnace.
There are other times when you may need to turn off your main gas supply. One situation would be after some sort of natural disaster, like an earthquake. However, if you smell gas in your home and you don’t know where it is coming from you should open doors and windows, leave the premises, and call 911. Every year there are stories on the news of homes exploding due to an internal gas leak.
Turning off the main gas supply is a simple process if you know how to do it. The photos below will teach you just that.