What to Do in the First Hour After a Water Leak

Water Damage · 5 min read

The first hour after a water leak determines whether you're dealing with a manageable mitigation job or a much larger problem. Here's what to do — in the right order — based on what we see when we arrive at active losses.

Step 1: Stop the source (if you can do so safely)

Active water flow is the highest priority. Every minute the water keeps coming makes the eventual damage worse and the eventual repair more expensive. The right move depends on where the water is coming from:

• Burst supply line, dishwasher line, ice maker line: Shut off the water at the local angle stop (the small valve on the wall behind the appliance) if you can reach it. If you can't, shut off the main water supply to the home — usually located near where the supply enters the house, or at the meter outside.
• Toilet overflow or supply failure: Shut off the small angle stop behind the toilet (turn clockwise to close).
• Water heater failure: Shut off the cold water inlet to the heater (lever or wheel valve at the top).
• Roof leak during active rain: You can't stop the rain, but you can capture water with buckets, towels, or tarps to limit where it spreads. Don't go up on the roof during a storm.
• Sewer backup: Stop using all plumbing fixtures in the home immediately. The line is overwhelmed; adding more flow makes it worse. Don't try to plunge it.

If you don't know where the main water shutoff is in your home, take 60 seconds right now to find it. Ours is often near where the water supply enters the basement or crawlspace, or at the meter near the street. Knowing the location ahead of time saves real money during an emergency.

Step 2: Turn off electricity to the affected area

Wet electrical is dangerous. If water is anywhere near outlets, light fixtures, or hardwired appliances, kill the power to that area at the breaker panel before walking through standing water. If you're unsure which breakers control which areas, kill the main breaker — it's a brief inconvenience compared to the alternative.

This is non-negotiable for any meaningful water event. We've seen homeowners shocked themselves trying to handle minor leaks with the power on. Don't be that homeowner.

Step 3: Document the damage

Before anything moves and before any cleanup begins, take photos. Lots of them. Wide shots of every affected room. Close-ups of damaged materials. Photos of the source if you found it. Photos of any soaked contents (furniture, electronics, personal items).

This documentation is what supports your insurance claim. The more you have, the smoother the claim process. Modern phones make this trivially easy — there's no reason not to take 30+ photos.

While you're documenting:

• Note the time the loss happened (or when you discovered it)
• Identify the water source if you can — burst pipe, appliance failure, weather, etc.
• Make a list of damaged items as you go

Step 4: Move what you can save

Furniture, electronics, valuables, and anything sentimental should come off wet flooring. Get them to a dry area of the home if possible. For items too heavy to move, put aluminum foil or wood blocks under the legs to separate them from wet flooring — this can save wood furniture that would otherwise wick water up its legs.

What to prioritize:

• Electronics (which can short out)
• Photos, documents, and irreplaceable items
• Wood furniture (absorbs water fast)
• Upholstered furniture sitting in standing water
• Rugs that aren't already saturated

What you don't need to prioritize: heavy appliances, fixed cabinetry, and anything already too saturated to save quickly. Professional restoration handles those.

Step 5: Call for help

For active water damage, this is the moment to call. Restoration companies (us included) can dispatch faster when you call earlier — before water has had hours to spread and saturate materials. The IICRC standard is that mitigation should start as soon as practical; "I waited two days for an estimate" is a phrase that makes claims worse, not better.

When you call, be ready to share:

• Type of loss (pipe, appliance, weather, sewage)
• Approximate affected area
• Whether water is still flowing
• Whether anyone is at the property to give access
• Your insurance carrier (if you plan to file a claim)

What NOT to do

A few things people commonly do that make situations worse:

• Don't use a household vacuum on water. Water in a household vacuum is both unsafe (electrical) and ineffective (vacuums aren't designed to lift water). Use towels and buckets until professional extraction equipment arrives.
• Don't wait for insurance approval to mitigate. Most insurance policies actually require you to take immediate steps to prevent further damage. Waiting makes claims worse, not better.
• Don't tear out wet drywall yourself. If drywall can be saved with aggressive drying, professional restoration will save it. Tearing it out preemptively turns a mitigation job into a reconstruction job.
• Don't bleach mold spots before professional assessment. Bleach can mask mold without addressing it, complicating later remediation.
• Don't ignore the water source. Mitigation that doesn't fix the underlying source is wasted work — water will return and you'll be back where you started.

Bottom line

The first hour matters more than any other hour. Stop the source, kill the power, document, save what you can, and call for help. We answer 24/7 at (478) 800-2750 — for Macon-area emergencies the call alone often takes pressure off, and we can talk you through the immediate steps even before we arrive.