Burst Pipe Emergency Guide

If a pipe just burst, shut off the main water valve now and open a faucet to drain the line. Everything else in this guide can wait until the water stops. In most Seattle-area homes the main shutoff is in the crawlspace, the garage, the basement wall facing the street, or in the meter box near the sidewalk. Water moves fast, so you should too.

The first five minutes: step by step

1. Shut off the main water valve. A lever style ball valve closes with a quarter turn until the handle sits crosswise to the pipe. A round gate valve closes clockwise, and may take several full turns. If you cannot find the valve or it will not budge, shut off at the meter by the sidewalk with a meter key or an adjustable wrench.
2. Open the lowest faucet in the house, plus a tub. This drains the remaining pressure out of the pipes and stops the spraying quickly.
3. Cut power to wet areas. If water is reaching outlets, appliances, or light fixtures, flip the breakers for those rooms. If water is anywhere near the electrical panel itself, do not touch the panel. Stay clear and say so when you call for help.
4. Turn off the water heater. With the main off, the tank stops refilling, and a heater running on a low tank can damage itself. Set a gas unit to off or pilot, or flip the breaker for an electric one.
5. Move what you can. Rugs, electronics, furniture legs, and boxes on the floor. Aluminum foil under furniture feet keeps stains out of wet carpet.
6. Document before you clean anything. Photos and video first. You will thank yourself at claim time.
7. Call a plumber. Describe what burst, where, and whether the water is fully stopped.

Where is the main shutoff in Seattle-area homes?

The location follows the age and style of the house. Older homes with crawlspaces usually have the valve just inside the crawlspace access, or where the supply line comes through the floor near a front corner. Homes with basements usually have it on the wall facing the street, close to where the line enters. Newer construction puts it in the garage or a utility room. Every home also has a city shutoff at the meter box in the sidewalk or planting strip, which needs a meter key or a long wrench to reach.

The middle of a flood is a bad time to learn this. Our emergency shutoff guide walks your household through finding and labeling every shutoff in about twenty minutes, and it is worth doing this week.

Water near electrical: when to cut the power

Water conducts electricity, and a burst pipe over a ceiling light or behind a wall of outlets turns a plumbing problem into an electrical one. If water is dripping through light fixtures, pooling near outlets, or running down a wall that has switches on it, kill the breakers for that part of the house before you wade in. If you are not sure which breaker covers the area, turning off the main breaker is a fair trade for safety, as long as the panel itself is dry and you have dry hands and dry floor in front of it. A soaked panel is strictly hands off.

Document everything for insurance

Insurance adjusters want evidence, and the best evidence is captured before cleanup. Take a slow video walkthrough narrating what you see, then photos of the burst point, the standing water, and every damaged item. Note the time you found it and the time the water stopped. Keep the failed section of pipe after the repair, because adjusters often want to see it. Save every receipt: fans, dehumidifiers, the plumber's invoice, even towels. Sudden and accidental water discharge is usually covered by homeowners policies, though the aging pipe itself typically is not. Your documentation is what separates a smooth claim from a fight.

Why do Puget Sound pipes burst?

Our marine climate is the quiet culprit. Because hard freezes are rare here, many local homes were never built to resist them. Water pipes run through uninsulated crawlspaces, exterior walls, and unheated garage ceilings. When an arctic blast does arrive, like the December 2022 freeze, those unprotected runs freeze, expand, and split. Our plumbers spend those weeks going crawlspace to crawlspace, and the pattern is always the same: the pipe that burst is the one closest to outside air.

Freezes are not the only cause. Old galvanized steel pipe corrodes from the inside until a weak point lets go, copper can develop pinhole leaks, and water pressure that runs too high stresses every joint in the house. If your home has had more than one leak in a few years, the burst is a symptom, not the problem. Our repiping page explains when replacing the aging piping makes more sense than patching it again.

What does the plumber do when they arrive?

First, confirm the water is truly isolated, and get it isolated if it is not. Then locate the actual break, which is not always where the water showed up, since water travels along pipes and framing before it drips. The plumber opens access where needed, repairs or replaces the failed section, pressure tests the repair, and restores your water. A good visit also includes a look at the rest of the vulnerable runs, because a pipe that froze once has neighbors that nearly did. Our pipe repair service covers all of this, from the emergency fix to insulating the runs that caused it.

If the water ran long enough to soak drywall, flooring, or insulation, drying matters as much as the repair. Wet building materials grow mold quickly in our damp climate. Our water damage restoration page covers extraction, structured drying, and moisture readings that prove the job is done.

Common questions

My shutoff valve will not close all the way. What now?

Old gate valves seize and fail more often than people expect. Close it as far as it goes, then shut off at the meter to stop the rest. After the emergency, have the valve replaced with a quarter turn ball valve. A main shutoff you cannot trust is a problem worth fixing on a calm day.

How do I keep pipes from bursting in the next freeze?

Insulate the pipe runs in your crawlspace and garage, disconnect garden hoses before winter, cover exterior hose bibs, and during a hard freeze let a faucet drip and open the cabinets under sinks on exterior walls. If you leave town in winter, keep the heat at 55 degrees or higher.

Does homeowners insurance cover a burst pipe?

Usually the sudden damage is covered: the wet drywall, flooring, and belongings. The worn pipe itself usually is not, and insurers can deny claims where a home sat unheated and unattended in winter. Read your policy and document everything.

Is a small pinhole leak an emergency too?

It is a slower emergency. A pinhole spray inside a wall can soak framing and insulation for weeks before you see a stain. If you spot unexplained damp, a musty smell, or a water bill jump, treat it with the same urgency, just without the sprint to the valve.

What to do next

Once the water is off, the clock is about drying and repair, not panic. Start at our emergency page if you are still triaging, or go straight to emergency dispatch to get a plumber moving. Call us at (206) 970-1031, where real people answer early and late, every day, or book online. We repair the pipe, find why it failed, and help you make sure the next freeze passes without a repeat.