What to Do Immediately If You Discover a Water Leak

A water leak can quickly escalate from a minor inconvenience to a major household emergency, causing extensive damage to walls, floors, and foundations if not addressed promptly. Whether it’s a small drip under the sink or a burst pipe flooding your basement, knowing what to do in the first moments after discovering a leak can save you time, money, and stress. Here’s a step-by-step guide to handling a water leak safely and effectively.

1. Shut Off the Water Supply

The first and most important step is to stop the flow of water. Locate your home’s main water shut-off valve—typically found near the water meter, in the basement, or along an exterior wall—and turn it clockwise to close it. If the leak is localized (like under a sink or behind a toilet), you can often shut off the valve directly connected to that fixture.

2. Turn Off Electricity in the Affected Area

Water and electricity are a dangerous combination. If the leak is near electrical outlets, lights, or appliances, immediately turn off power to that area at the circuit breaker. Never attempt to unplug or handle electrical devices near standing water.

3. Contain the Leak and Minimize Damage

Use buckets, towels, or rags to collect and absorb as much water as possible. If the leak is from a ceiling, place a bucket underneath and gently poke a small hole to relieve water pressure—this helps prevent the ceiling from sagging or collapsing. Move furniture, rugs, and valuables out of the affected area to prevent further damage.

4. Identify the Source (If Safe to Do So)

Try to locate the general source of the leak. Check visible plumbing connections under sinks, behind appliances, or along walls and ceilings. If the leak appears to be coming from a hidden pipe, slab, or main water line, leave further investigation to professionals equipped with specialized tools for accurate water leak detection & repair.

5. Dry Out the Area

Once the water flow has stopped, begin drying the affected area as soon as possible to prevent mold and mildew growth. Use fans, dehumidifiers, and open windows to promote air circulation. For large leaks or significant flooding, consider hiring a professional water damage restoration company.

6. Document the Damage

Take photos or videos of the leak and any resulting damage before cleanup or repairs begin. This documentation will be useful when filing an insurance claim. Be sure to keep receipts for any temporary repairs or emergency services as well.

7. Call a Licensed Plumber

After the immediate crisis is under control, contact a licensed plumber to assess and repair the issue. Even if you’ve temporarily stopped the leak, there may be underlying problems—such as corrosion, pipe damage, or pressure issues—that require professional attention.

A quick response is key to minimizing the damage caused by a water leak. By acting calmly, shutting off the water, and calling in professionals, you can protect your home from costly repairs and long-term issues. Routine maintenance and periodic inspections are also essential to catch small leaks before they become emergencies. With the right preparation and professional help, you can keep your home safe, dry, and structurally sound.