What to Do in a Plumbing Emergency Before the Plumber Arrives
A burst pipe or overflowing toilet at 2 AM is terrifying. Here is exactly what to do in the first 10 minutes to limit damage while you wait for help.
It is 11:30 PM on a Tuesday in February. You hear water rushing somewhere in the walls. You go downstairs and find your basement floor covered in an inch of water — and it is rising.
What do you do?
Most homeowners freeze. The panic of a plumbing emergency, especially in the middle of the night or during a Buffalo blizzard, makes it hard to think clearly. But the actions you take in the first 10 minutes can mean the difference between a manageable repair and a catastrophic loss.
This guide tells you exactly what to do — step by step — before the plumber arrives.
Step 1: Shut Off the Water
This is the single most important thing you can do. Every second water is flowing, the damage is getting worse.
For a localized problem (a burst pipe under a sink, a leaking toilet, a broken supply line), look for the shutoff valve closest to the problem. Under-sink shutoffs are the oval or football-shaped valves on the supply lines going into the faucet. Toilet shutoffs are on the wall behind the toilet, near the floor. Turn them clockwise to close.
For a major leak or if you cannot find the local shutoff, go straight to the main water shutoff. In most Buffalo homes, this is in the basement near the front of the house, close to where the water line enters from the street. It may be a gate valve (a round wheel you turn clockwise) or a ball valve (a lever you turn 90 degrees). Turn it off.
Know where your main shutoff is before an emergency happens. Walk through your home right now and locate it. Make sure it turns freely — a shutoff valve that has not been used in years can seize up. If yours is stuck, call us to have it serviced before you need it in a crisis.
Step 2: Turn Off the Water Heater
Once the main water is off, turn off your water heater. This prevents the heating element from running dry and burning out.
For a gas water heater, turn the dial to the "Pilot" setting. For an electric water heater, flip the breaker in your electrical panel. This step takes 30 seconds and can save you from having to replace the water heater in addition to fixing the pipe.
Step 3: Open Faucets to Drain the Lines
After shutting off the main supply, open a few faucets throughout the house — especially on the lowest floor. This drains the remaining water from the pipes and reduces pressure, which slows any remaining leaks.
Start with the lowest faucet in the house (often a basement utility sink or a first-floor bathroom) and work your way up. Let the water run until it stops.
Step 4: Deal With the Immediate Water
While you are waiting for the plumber, do what you can to manage the water that has already escaped.
Move valuables off the floor. Electronics, documents, furniture, and anything irreplaceable should be moved to higher ground immediately. Water damage to belongings happens fast.
Use towels, mops, and buckets to contain the water and prevent it from spreading to adjacent rooms or soaking into flooring and drywall.
If water is coming through a ceiling, place buckets under the drips and puncture the lowest point of the bulge with a screwdriver. This sounds counterintuitive, but a controlled release prevents the ceiling from collapsing under the weight of accumulated water.
Run a wet-dry vacuum if you have one. It will not solve the problem, but it can remove significant water from the floor and buy you time.
Step 5: Document Everything
Before you start cleaning up, take photos and video of the damage. Walk through every affected area and document:
- Where the water is coming from (or where it came from)
- How far it has spread
- What has been damaged (flooring, walls, furniture, appliances)
- The water level on walls and floors
This documentation is essential for your insurance claim. Do it before you move anything or start cleanup.
Step 6: Identify the Source If You Can
While you are waiting for the plumber, try to identify where the leak originated. This helps the plumber work faster and helps you understand what you are dealing with.
Common sources of plumbing emergencies in Buffalo homes:
Burst pipes from freezing. In winter, pipes in exterior walls, crawl spaces, and unheated areas can freeze and burst. The burst often does not become apparent until the pipe thaws. Look for wet spots on walls, ceilings, or floors near exterior walls.
Failed water heater. A water heater that has rusted through or had a pressure relief valve failure can release 40 to 80 gallons of water quickly. Check the water heater if the leak is in the basement or utility room.
Sewer backup. If multiple drains in the house are backing up simultaneously, or if sewage is coming up through floor drains, you have a sewer line problem. Do not use any water in the house until this is resolved — every flush and every drain adds to the backup.
Supply line failure. The braided steel supply lines under sinks and behind toilets can fail suddenly, especially if they are more than 10 years old. These small lines can release a surprising amount of water in a short time.
Washing machine hose. Washing machine supply hoses are a common source of sudden flooding. If the leak is near the laundry area, check the hoses.
What NOT to Do
Do not use electrical appliances in flooded areas. If there is standing water near outlets, appliances, or your electrical panel, stay out of that area until the power is off. Water and electricity are a deadly combination.
Do not ignore a sewer backup. Sewage contains bacteria and pathogens that are serious health hazards. If sewage is backing up into your home, get everyone out of the affected area and call us immediately.
Do not try to repair a burst pipe yourself with tape or clamps as a permanent fix. Temporary patches can hold for a short time, but they will fail — often at the worst possible moment. Get a proper repair done.
Do not wait to call. The longer water sits in your home, the more damage it does. Mold can begin growing within 24 to 48 hours. Call us the moment you realize you have a problem.
When to Call 911 Instead of (or in Addition to) a Plumber
Call 911 if:
- You smell gas. A gas leak is a life-safety emergency. Leave the building immediately, do not use any switches or electronics, and call 911 and your gas company from outside.
- There is electrical danger — sparking, burning smell, or water near your electrical panel.
- Someone has been injured.
For everything else, call us. Our emergency plumbing team answers every call 24 hours a day, 7 days a week. We serve all of Buffalo and Erie County, including Tonawanda, Kenmore, and the surrounding communities.
Be Prepared Before an Emergency Happens
The best time to prepare for a plumbing emergency is before one happens. Take these steps now:
- Locate your main water shutoff and make sure it works.
- Know where the shutoffs are under every sink and behind every toilet.
- Have our number saved in your phone: 716-329-2701.
- Keep a wet-dry vacuum in the basement or utility room.
- Know where your electrical panel is and which breaker controls the water heater.
A little preparation now can save you thousands of dollars and a lot of stress when something goes wrong at 2 AM in January.
Need help now? Call Most Valuable Plumber LLC at 716-329-2701 — 24/7 emergency service across Western New York.
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