How to Shut Off Water During a Plumbing Emergency
When a pipe bursts or a fixture starts leaking fast, stopping the water is the first priority. This guide walks through the most important shutoff points and the safest first steps to take.
Informational Guide Only
This guide is provided for educational and informational purposes only. LocalServicesMatcher is a lead generation and matching platform that connects consumers with independent service providers. We do not provide services directly, and the information here should not be considered professional advice. Service availability, pricing, methods, and results vary by provider. Always consult with licensed professionals for your specific situation.
If water is actively spreading
Turn off the nearest available water supply first. If you cannot isolate the leak immediately, shut off the main water valve to the house.
Call (855) 737-0061First places to check
1. Fixture shutoff valves
Sinks, toilets, and some appliances often have small shutoff valves nearby. Turning off the local valve may stop the problem without affecting the entire house.
- • Under sinks: look for paired hot and cold supply valves
- • Toilets: look for a small valve on the wall or floor behind the bowl
- • Washing machines: check the recessed hookup box behind the unit
2. Water heater supply valve
If the leak appears to involve the water heater or nearby piping, the cold-water supply valve above the unit may reduce or stop active flow until a plumber can inspect it.
3. Main water shutoff
If water is moving quickly, if the leak source is unclear, or if local valves fail, shut off the main house water valve.
Common main shutoff locations:
- • Basement near the front foundation wall
- • Garage near the water heater
- • Utility room or crawlspace
- • Exterior wall where the water line enters the home
What to do right after shutoff
- Move towels, bins, or buckets into place to control remaining drips.
- Turn off electricity to the affected area if water is near outlets or appliances.
- Take photos of visible damage for insurance and repair documentation.
- Call a licensed plumber if the leak source is unknown or the valve did not fully stop the problem.
Related Plumbing Resources
Before the Plumber Arrives →
A fast checklist for cleanup, access, and documentation.
Quote Comparison Worksheet →
Compare plumbing estimates more consistently.
Emergency Plumbing Guide →
See broader emergency warning signs and response tips.
All Plumbing Resources →
Browse the full plumbing resource hub.
Need Plumbing Help Now?
LocalServicesMatcher connects you with independent, licensed plumbers in your area.