How to Handle a Plumbing Emergency Before the Plumber Arrives
30 seconds of action when you discover a flood can save thousands.
TL;DR
When you discover a plumbing emergency: (1) shut off water at main, (2) turn off water heater, (3) turn off electricity to affected area, (4) document with photos, (5) call plumber. The first 60 seconds of response determines damage cost.
What’s in this guide
- Locate your main shutoff NOW
- The 5-step emergency response
- Common emergency types
- When to evacuate
Plumbing emergencies happen. The difference between a $400 repair and a $15,000 disaster is usually the first 60 seconds of response. Here’s exactly what to do.
Tools & Materials You’ll Need
Tools
- Knowledge of where your main shutoff is
- Phone
Materials
- Towels for water mitigation
Step-by-Step Instructions
BEFORE Emergency: Locate Your Main Shutoff
Walk to the front of your house. The water meter is usually at the property line. Inside the meter box is the meter’s shutoff valve. Some homes also have a shutoff at the foundation. Test that you can turn it off.
STEP 1: Shut Off Water at Main
Walk briskly (don’t run on wet floors) to the main shutoff. Turn clockwise until tight. This stops new water from flowing into the leak.
STEP 2: Turn Off Water Heater
For gas heaters: turn gas valve to “Pilot” or “Off.” For electric: flip breaker. Without water flow, water heater elements can burn out from running dry.
STEP 3: Cut Power to Affected Area
Water + electricity = fire and shock. Flip breakers for any room with active water. Don’t enter water with active electricity in the room.
STEP 4: Document Everything
Photo and video the leak source, water damage, surroundings. Critical for insurance claims.
STEP 5: Call Plumber and Insurance
Call emergency plumber first (water mitigation immediate priority). Then call insurance to start claim process.
Show every adult in your house where the main shutoff is. Test it together. The number of LA homes we visit where the homeowner has no idea where their shutoff is would shock you. Make this a 5-minute family drill.
Don’t use electrical appliances near water
Wet outlets and standing water with electricity is fatal. Cut power first.
Real Scenarios from Our LA Service Calls
Burst pipe overnight, owner asleep
Galvanized supply line burst at 2 AM. Owner woke at 6 AM to flooded living room. Main shutoff was at the meter — owner had never used it. Took 15 minutes to locate, fight the seized valve, and cut water off. Damage: $32,000. With faster response: under $5,000.
When to Call a Plumber Instead
DIY isn’t always the right call. Bring in a licensed plumber if any of these apply:
- ALL emergencies — call as soon as water is off
- Sewer backup
- Gas smell with water leak
- Electrical components in water
Frequently Asked Questions
Should I have a wrench at the meter?
Yes. Old valves seize. Cheap insurance.
How long can I leave water off?
Hours is fine. Days requires draining water heater to prevent damage.
Can I fix it myself in an emergency?
Sometimes. Burst pipe at a connection: yes (turn water off, replace fitting). Burst supply line in wall: no (call pro).
Who pays for emergency plumber?
Standard plumbing repair: you. Insurance covers DAMAGE caused by the leak, not the repair itself.
What about gas line emergencies?
Different protocol — leave the area, call SoCalGas (1-800-427-2200), then call a plumber.
Need professional help in Los Angeles?
Same-day service. Flat-fee pricing. No surprise add-ons.
Call (818) 938-8660
