Plumbing Emergency? Here's What to Do Before Help Arrives
The first five minutes of a plumbing emergency decide how much damage your home takes. Here's exactly what to do, in order, before your plumber gets there.
Plumbing emergencies are stressful precisely because they demand a fast decision from someone who usually isn't a plumber. The good news: the actions that matter most in the first few minutes are simple, and most Gilbert homeowners can do them without any special tools. Here's the order that actually limits damage, followed by what to do while you wait for help.
Step 1: Stop the water at the source
Every plumbing emergency gets worse the longer water keeps flowing, so the very first move is always to shut off water as close to the problem as possible.
- Single fixture problem (toilet, sink, washing machine). Most fixtures have their own shutoff valve — typically a small oval or lever handle on the supply line under the sink or behind the toilet. Turn it clockwise until it stops.
- Whole-house issue or you can't find the fixture valve. Shut off the main water valve. In most Gilbert homes this is near the street-facing exterior wall of the garage, near the front hose bib, or at the meter box near the curb. Turning this off stops water to the entire house.
- Water heater leaking from the tank. Shut off the cold water supply valve on top of the unit, and if it's a gas water heater, turn the gas control knob to "off" as well.
Step 2: Cut power to anything near standing water
Water and electricity don't mix, and this step takes priority over cleanup. If water is pooling near outlets, a water heater, a furnace, or an electrical panel, go to your breaker box and shut off power to that circuit or area before you do anything else. If the panel itself is wet or you're not confident which breaker controls the area, shut off the main breaker instead and wait for help.
Gas is not a wait-and-see situation
If you smell gas anywhere near a water heater or gas line during the emergency, leave the house immediately, don't flip any switches on your way out, and call your gas utility's emergency line from outside before calling a plumber.Step 3: Contain and document the damage
Once the water is shut off and the area is electrically safe, focus on limiting how far the water spreads:
- Move anything valuable off the floor — rugs, boxes, electronics, furniture legs — especially in a garage or lower-level bathroom where water pools fast on tile or concrete.
- Soak up standing water with towels, a wet/dry shop vac if you have one, or a mop, working from the wettest area outward.
- Take photos or a short video of the affected area before cleanup — if you end up filing a homeowner's insurance claim for water damage, timestamped photos of the original scene make that process considerably easier.
Water shut off and area secured? Now get a plumber routed to fix the actual problem.
Request emergency serviceStep 4: Call and be ready to describe what happened
When you call for emergency service, having a few details ready speeds up dispatch and helps the plumber arrive prepared with the right parts:
- Where the water is coming from (fixture, wall, ceiling, water heater, outdoor line).
- Whether you've already shut off water to the fixture or the whole house.
- Whether the water is hot, cold, or you're not sure.
- Any unusual smells — sewage, gas, or mustiness — and where they're strongest.
- Roughly how long the problem has been happening.
What not to do while you wait
A few common instincts actually make things harder for the plumber once they arrive. Avoid pouring chemical drain cleaner into a backed-up drain — it can make a clog worse and creates a hazard for whoever has to work on the pipe next. Avoid trying to force a stuck shutoff valve with excessive pressure, since a seized valve can snap rather than turn. And resist the urge to take apart fittings or fixtures yourself unless you're confident in what you're doing — a partially disassembled fixture is often harder to diagnose than one left alone.
Quick answers
What counts as a plumbing emergency?
Active flooding, a burst or actively leaking pipe, sewage backing up into the house, a gas smell near an appliance, or complete loss of water or hot water all count as emergencies that need same-day or immediate attention. A slow drip, a running toilet, or a minor clog in a single drain usually does not.
Where is my home's main water shutoff valve?
In most Gilbert homes it's near the front hose bib, in the garage along the wall shared with the street side of the house, or at the water meter near the curb. It's worth locating and testing it before an emergency happens, since valves that sit unused for years can be stiff or seized.
Should I turn off the electricity if there's water on the floor?
If standing water is anywhere near outlets, a water heater, or an electrical panel, shut off power to that area at the breaker before doing anything else — water and electricity are a serious shock hazard, and this comes before worrying about the plumbing itself.
Save this before you need it
Keep 844-967-5247 saved in your phone — 24/7 emergency dispatch across Gilbert, AZ & the East Valley when a plumbing emergency actually happens.