Finished shingle roof replacement on a Rancho Cucamonga home by GAX Roofing, with the San Gabriel Mountains behind it
Homeowner Guide

Roof Leaking
in a Storm?

Water is coming in and the rain hasn't stopped. Here is what to do in the first hour, what to leave alone, and how to keep a bad night from turning into a bad month.

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The Short Answer

Safety first, then protect the inside, then take dated photos, then call a roofer. Stay off the roof, wet or dry. A tarp keeps the water out until the real repair, and the real repair happens in daylight on a dry roof. If water is coming into the house right now, that is an emergency: call, don't fill out a form.

Do this now

  • Keep water away from anything electrical, and stay out of standing water
  • Buckets and towels under every drip
  • Move furniture, electronics, rugs and papers out of the way
  • Stay out from under a ceiling that is sagging
  • Photos and video of every spot, with the date, before anything is moved or fixed
  • Write down when it started, which rooms, and what the rain and wind were doing

Leave this alone

  • Climbing on the roof to look or to tarp it
  • Touching wet outlets, switches or appliances
  • Painting over the stain once it dries
  • Signing anything a stranger brings to the door
  • Signing over your insurance claim or check to anyone
  • Paying a big deposit or paying in cash
Right now

The First Hour, Step by Step

  1. Make it safe

    Water and electricity don't mix. Don't touch electrical equipment that is wet or while you are standing in water, and turn off the power to the area only if you can do it safely. If a ceiling is sagging with water, keep everyone out from under it.

  2. Catch it and protect what you can

    Buckets, pots and towels under every drip. Move furniture, electronics, rugs and anything you care about out of the way. A plastic sheet or a tarp over what can't be moved.

  3. Photograph everything, with the date

    The ceiling, the walls, the drip, the bucket filling up, and anything that got wet. Video helps. From outside, only from the ground. Do this before anything gets moved, cleaned up or repaired.

  4. Write down what you saw

    When it started, which rooms, and what the weather was doing. Every rain, or only when the wind blows a certain way. That one detail helps whoever traces the leak.

  5. Call a roofer

    If water is coming into the house, call. A form gets read in the morning; a phone call gets answered. If it can wait until the next business day, a good roofer will tell you that too.

  6. Call your insurance company if you plan to file

    Ask how they want it reported. Your policy and your insurance company decide what is covered. More below.

At GAXFor a genuine emergency, call us at (909) 819-8394. Our emergency roof repair page lists what counts, and we offer next-day turnaround for those calls.
The one rule

Stay Off the Roof

A wet roof is slick, wet tile breaks underfoot, and storms come with wind. CSLB's roofing guide says it plainly: the best way to preserve your roof is to stay off of it. No leak is worth a fall. The roof will still be there in the morning, and the water in your bucket is a lot cheaper than an emergency room.

That includes tarping it yourself in the middle of a storm. A tarp that isn't pulled tight and fastened well past the open area flaps, catches the wind and works itself off by morning, and getting up there to do it is the dangerous part.

Tarps

What a Tarp Can and Can't Do

A tarp is not a repair, and nobody should sell it to you as one. It is a way to keep water out of the house tonight so the actual repair can happen in daylight, on a dry roof, with the right material on the truck.

Done right

Pulled tight, run well past the open area in every direction, and fastened so the wind can't get under it.

Done wrong

Loose, short of the damage, or weighed down with whatever was in the yard. It flaps, catches wind, and ends up in the neighbor's yard.

How long it lasts

Long enough to get through the weather and get the repair scheduled. It is a bridge, not a plan for the winter.

What happens next

When the roof is dry, the damaged area gets opened, the cause gets found, and it gets repaired with the right material. That is the job a tarp is buying time for.

Emergency tarp pulled tight over an open section of a tile roof in Tustin, California
Tustin: an emergency tarp pulled tight and run past the open area.
Tarp fastened over a roof section on an emergency call in Tustin, California
The edges run well past the damage so the wind can't get under it.
Tracing it

The Drip Is Rarely Under the Leak

Water gets in at one spot, runs along the underlayment or the framing, and drips somewhere else. The ceiling stain is the last stop on the trip, not the first. That is why patching right above the stain so often misses.

The attic, from the hatch

If you can get there safely with a flashlight, look from the hatch for wet wood, wet insulation or a drip. Don't walk the attic if you aren't sure where to step; a foot through the ceiling is a second repair.

Leaks only in wind-driven rain

A leak that shows up only when the wind blows a certain way often points to flashing, the roof edge, or a wall where the roof meets the house.

A leak that came back

If it was patched before and it is back, the patch was likely in the wrong place or the layer underneath is done. More in why a roof repair doesn't hold.

At GAXWhen we chase a leak, instruments point and people confirm: thermal imaging shows the cold, wet area, and the attic confirms it. More in how we find a leak with thermal imaging.
Bathroom ceiling stain beside its thermal image, which shows the wet area is larger than the stain
The wet area the camera finds is bigger than the stain you can see.
Water staining along a roof rafter and into the insulation, found from the attic in Azusa
Azusa: water ran along a rafter before it ever showed on a ceiling.
Tonight or tomorrow

Is It an Emergency?

What you seeWhat it usually meansNext step
Water pouring in, a section of roof open, a tree or branch on the roofAn emergencyCall a roofer now. Buckets, protect your things, stay out of the room if the ceiling sags.
A steady drip in one spotUrgentCall. Catch it, document it, and get on the schedule.
A new stain, no dripWater is getting in somewherePhotograph it with the date and have it traced once the rain stops. Don't paint over it.
A leak only when the wind blows a certain wayOften flashing or the roof edgeAn inspection after the storm.
A leak that came back after a repairOften the underlayment is doneAn inspection that looks under the roofing, not another patch.
Leaks in more than one roomOften the layer under the roofingAn inspection, and an honest conversation about repair or replacement.

None of these on its own tells you what the roof needs. They tell you how fast someone should look at it.

Insurance

Insurance: Document First

A lot of policies cover wind. Most homeowners policies exclude wear and tear, and your policy and your insurance company decide what is covered after the deductible. What helps either way is a clear record: dated photos taken before anything was touched, and a written description of what happened and when.

Before you file

Ask your insurance company how they want the damage reported, and keep a copy of everything you send.

When the adjuster comes

You can have your roofer there to show the adjuster the damage and explain what the repair involves. The claim itself stays between you and your insurance company.

Not every scuff is a claim

If the damage is small, a repair out of pocket can make more sense than a claim. A roofer should tell you which side of that line you are on.

Keep your claim yours

Don't sign over your claim or your insurance check to a contractor. CSLB says the same about insurance checks.

At GAXOur storm inspection and the estimate are free. The written report with dated photos is free when we do the repair, and a separate service if you only need the report. More in Storm Damage: Document First, Call Second.
Who you let in

After a Big Storm, Check Who You Hire

Big storms bring people knocking on doors. Most of what protects you is in CSLB's own advice after a disaster.

At GAXOur license is C-39 #1135657. Look it up before you let anybody, including us, on your roof. Our contract checklist goes through the rest of a contract line by line.
When it stops

After the Storm

Let it dry, then look again

Stains often look worse while they are wet. Keep taking dated photos as it dries, and note any smell or soft spots.

Don't paint over it

Paint hides the stain, not the leak. Have it traced to where the water gets in first.

Repair in daylight, on a dry roof

Roofing in the rain is how you make new problems. A tarp holds it until the roof is dry enough to open and fix right.

Ask the bigger question

If this is the third winter of patches, or a tile roof leaking in more than one spot, the honest question is repair or replace. Our tile roof decision guide walks through it.

Questions

Frequently Asked

Should I get on the roof and tarp it myself during the storm?

No. A wet roof is slick, wet tile breaks underfoot, and wind makes it worse. A tarp that isn't pulled tight and fastened past the damage blows off anyway. Protect the inside, document it, and call a roofer.

Will homeowners insurance pay for a roof leak?

It depends on your policy and on what caused it. A lot of policies cover wind, and most exclude wear and tear. Your insurance company decides what is covered after the deductible. Dated photos taken before anything was touched help either way.

Can a roof be repaired while it is raining?

A real repair waits for a dry roof. During the storm, the goal is to keep water out of the house, sometimes with a tarp, so the repair can be done right in daylight.

The drip stopped when the rain stopped. Am I okay?

The leak is still there, and it will be back with the next rain. Photograph the stain with the date, don't paint over it, and have it traced to where the water gets in.

How fast can GAX come out?

For genuine emergencies, like water coming into the house or a section of roof open, we offer next-day turnaround. Call (909) 819-8394 instead of sending a form.

How do I know a roofer is licensed?

Ask for the license number and look it up on the CSLB website, and ask to see the pocket license. In California, roof work of $500 or more needs a license. Ours is C-39 #1135657.

Water coming in, or a leak that came back after the last rain? Call us. We will tell you whether it needs someone tonight or can wait until the storm passes, and then we fix it right on a dry roof. We do four kinds of roofs: asphalt shingle roofs, tile replacement with new tile, tile lift and relay, and flat roofs, across the Inland Empire.

Next in the library: the Roof Maintenance Calendar and Tile Roof: Repair, Lift and Relay, or New Tile?.

Call (909) 819-8394 →

Sources

Pages checked October 11, 2026. The GAX notes describe our own services. Field observations are what we see on Inland Empire roofs, not rules.

Water coming in right now?
Call us. Don't send a form.

(909) 819-8394