How do you turn off a stuck gas or water valve?
Stuck valves often feature safety locking mechanisms or resist turning due to infrequent use over time. Applying too much force can damage the line, preventing homeowners from safely stopping the flow for appliance repairs or emergencies.
What the numbers show
Counted from the threads quoted below. How we count
- The most recent one is from October 2026.
- This comes up 15.1× more often in r/Plumbing than across the site as a whole.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Turning off the water line to the water heaterDid this help you?
- 2Turning the thermostat control knob on the water heater to off instead of using the main gas line valveDid this help you?
- 3Leaving the gas valve alone and keeping windows open until a professional arrivesDid this help you?
- 4Replacing the cheap plastic valve with a standard quarter turn valveDid this help you?
- 5Checking if the valve is pushed in or operating it according to instructionsDid this help you?
- 6Using a wrench and maximum physical strengthDid this help you?
- 7Gripping the valve shaft with channel locksDid this help you?
- 8Applying WD-40 to loosen the metal componentsDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“Upon following the instructions found on the valve. It won’t budget when pulled. When turning clockwise, it doesn’t tighten at all. And we know the water is still on because the fridge continues to produce ice.”source ↗
“First time homeowner and not sure what I should be doing.”source ↗
“However, I am reading that we are supposed to be turning off the gas line to the heater as well and my inspector had put these tags when we initially brought the home that seems to be stating the same. I’m assuming this is the gas valve but I’m having trouble moving it and wanted to check that it’s the correct thing I should be turning off.”source ↗
“I have this steam radiator in my really old apartment building that gets way too hot in the winter and I've tried to turn it off.”source ↗
“Even with the dial (right side) at the lowest setting (1) it is still unbelievably hot.”source ↗
“I've tried to twist the valve (yellow arrow) clockwise as much as possible to close it but at this point its stuck and wont move anymore”source ↗
Where this came up
People with this problem also raised
- 14Old water shut off valve won't turn off
- 4How to turn off main water valve at the street safely
- 4How to remove a snapped valve adjustment screw
- 3Correct key won't turn in door lock
- 3How to turn off a thermostat when the system smells like burning hair
- 16How do I find my main water shutoff valve in an emergency?