Burst Pipe? Here's Exactly What to Do in the First Hour
Quick Answer
- Step 1
- Shut off main water valve
- Step 2
- Cut power near water
- Call Within
- 30 minutes (plumber + insurer)
- Avoid
- Standing water near outlets
If this is happening right now: stop reading past this paragraph and go shut off your main water valve first — it's usually near the water meter, in the basement, a crawlspace, or near the water heater. Turn it clockwise until it stops. Everything else on this page matters, but it matters less than that first step, so do it now and come back.
The Order Matters — Do These in Sequence
- Shut off the main water valve. Turn it fully clockwise. This is the single most damage-limiting action you can take, and every minute it stays open makes the rest of this list worse.
- Cut power to any area where water is pooling near outlets, appliances, or a breaker panel. Do this at the breaker itself — never step into standing water to reach a switch or outlet. If you're not sure which circuits are affected, shutting off power to the whole house is the safer call.
- Relieve the pressure still in your pipes. Open the lowest faucet in your home first, then the highest, to drain remaining water from the system. Flush toilets once. If your water heater is on, switch it to "off" or "pilot" — running it without water flowing through it can damage the unit.
- Start removing standing water — unless you suspect sewage. Towels, a mop, or a wet/dry shop vac work for clean water. If there's any chance the water is contaminated (a nearby sewer line, a smell, unusually murky water), stop and wait for a professional rather than risking exposure. Our water category breakdown explains why this distinction matters for both safety and cost.
- Photograph everything before you clean up. Insurance adjusters rely on photo and video evidence of the damage as it happened, not after you've already mopped it up. Do this before step 4 if you can manage both at once.
- Call a plumber and your insurance company. The plumber stops the emergency from recurring; the insurer starts your claim clock. See our guide on what your policy actually covers before that call so you know what to ask.
Preventing a Repeat
If the burst happened because a pipe froze, the underlying problem doesn't go away once the water's off. Pipes in unheated spaces — a garage, crawlspace, or attic — are the most common repeat offenders. Insulating exposed pipes in those areas, or adding heat tape for the coldest stretches of winter, is the actual fix; a repaired pipe in the same uninsulated location will very likely burst again under the same conditions.
| Do | Don't |
|---|---|
| Shut off the main valve immediately | Wait to see how bad it gets first |
| Cut power at the breaker panel | Step into standing water to reach a switch |
| Use a wet/dry shop vac on standing water | Use a regular household vacuum on water |
| Photograph damage before cleanup | Clean up first and document later |
| Call a plumber and insurer promptly | Assume the damage is too minor to report |
Frequently Asked Questions
Where is my main water shut-off valve?
Most commonly near the water meter, in the basement, a crawlspace, or near the water heater. It's worth locating and testing it before an emergency, since searching for it during an active burst costs you time you don't have.
Should I turn off electricity before or after shutting off the water?
Shut off the water first, since that stops the source of the problem. Then address electricity if water is pooling near outlets, appliances, or a breaker panel — and never step into standing water to reach a switch.
Can I use a regular vacuum to clean up the water?
No. A standard household vacuum isn't designed for water and can cause electrical shock or be destroyed. Use a wet/dry shop vac, towels, or a mop instead.
How quickly should I call my insurance company after a pipe bursts?
As soon as the immediate safety steps are handled — ideally within the first hour or two. Prompt reporting and documentation (photos before cleanup) both support a smoother claims process.
Cost data sourced from: Mr. Rooter Plumbing. Actual quotes vary by region, provider, and job specifics.