Roof Leak After Heavy Rain? What East Valley Homeowners Should Check

The Phoenix area got two rounds of rain over Halloween weekend, and the East Valley caught a real soaking on Sunday, Nov. 1. Mesa's Falcon Field logged about 2.08 inches of preliminary rainfall from Friday through Sunday, most of it on Sunday. If you're wondering whether your roof kept all that water out, here's what the official numbers show, what you can check from the ground, and when to call for an inspection.

How much rain fell in the East Valley from Oct. 30 to Nov. 1, 2026?

On Friday, Oct. 30, the heaviest rain fell north and northeast of Phoenix. The National Weather Service (NWS) Phoenix office logged 2 to 3 inches in parts of Paradise Valley and north Scottsdale. East Valley gauges were lighter that first round, with about 0.5 to 1.4 inches around Apache Junction, east Mesa and Tempe in the 24 hours ending Saturday morning.

The second round hit the whole metro. A Flood Watch covered Gilbert, Mesa, Chandler, Queen Creek and the rest of the Phoenix Metro from Saturday evening until it expired at 5 a.m. Monday, Nov. 2. NWS preliminary climate data for Mesa's Falcon Field shows 0.31 inch on Oct. 30, 0.32 inch on Oct. 31 and 1.45 inches on Nov. 1, about 2.08 inches in three days. Phoenix Sky Harbor recorded 1.21 inches on Nov. 1 alone, just short of the 1.25 inch daily record set in 1995.

Was there hail or wind damage in the East Valley?

NWS reported no hail and no wind damage in the East Valley from this storm. The two Severe Thunderstorm Warnings on Oct. 30 were in the north and northwest Valley, and NWS Phoenix logged no storm reports at all from Saturday morning through Monday. This was a rain event, so for most homeowners the question isn't storm damage. It's whether the roof kept the water out. If you're thinking about the Oct. 20 hail instead, see our post on the Oct. 20 hail in Mesa and Chandler.

Can a roof leak after heavy rain even without storm damage?

Yes. A long, steady rain tests the parts of a roof that brief storms don't, like underlayment, flashing, and the seals around vents and skylights. On most East Valley tile roofs, the underlayment wears out long before the tile does. A roof can look fine from the street and still let water through after hours of rain. We wrote more about that in why a tile roof can leak when the tiles look fine.

What can I check from the ground after the rain?

Stay off the roof. Wet tile and shingles are slippery, and walking on tile can crack it. From the ground and inside the house, look for:

• Water stains or fresh spots on ceilings, especially near outside walls, vents and skylights
• Damp insulation or drips in the attic, if you can see it safely from the access opening without walking the joists
• Tiles or shingles that look out of place, cracked or missing
• Gutters or downspouts that overflowed, pulled loose or are clogged
• Water pooling against the house or around the patio cover

Take dated photos of anything you find, inside and out.

When should I call for a roof inspection?

Call if you see a new ceiling stain, a drip, damp attic insulation, or tile or shingles that have shifted. We recommend an inspection once a year and after big storms, and two inches of rain in three days counts. A stain that keeps growing after the rain stops usually means water is still getting in, so it's worth having someone look at it. You can read what's included in a roof inspection.

Where do roofs usually leak in heavy rain?

Most leaks start where the roof is interrupted: around vents, skylights, chimneys and solar mounts, at valleys, and where flashing meets a wall. On tile roofs, water that gets past the tile depends on the underlayment underneath. We handle leaks around vents, skylights and solar mounts, plus gutters. More on that is on our roof repair page.

Does a leak mean I need a new roof?

Not always. Many leaks come down to one detail, like a seal or a section of flashing, and can be repaired. If the underlayment is worn out across the roof, a tile re-roof means we lift the tiles, replace the underlayment and flashing, then reset the good tiles and replace broken ones. On a shingle roof, a re-roof is a full tear-off and new shingles. An inspection tells you which situation you're in. Here's how to tell if your underlayment needs replacing.

Should I document the leak for insurance?

If you plan to contact your insurance company, document first. Take dated photos and video of stains, drips and any visible roof issues, and keep receipts for anything you do to stop further damage. Whether a policy covers a leak depends on the policy and the cause. Your insurer makes that decision, so ask them directly.

FAQ

Did the Oct. 30 to Nov. 1 storms bring hail to Gilbert or Mesa?

No hail was reported in the East Valley. NWS Phoenix issued two Severe Thunderstorm Warnings on Oct. 30 for possible hail, both in the north and northwest Valley (Peoria and Anthem, then Deer Valley to Cave Creek and Carefree). There were no hail reports.

Is it safe to get on my roof to look for the leak?

We don't recommend it. Wet roofs are slippery, and walking on tile can break it. Check from the ground and from inside, and leave the roof itself to a roofer.

How soon after the rain should I get a leak looked at?

Once you see signs of water inside, book an inspection soon. Leave enough time for the roof to dry so it can be checked safely.

Do you serve my city?

All Storm Roofing is based in Gilbert and works across the East Valley, including Mesa, Chandler, Queen Creek and Tempe. Call (602) 806-6806 to book an inspection.

Sources: NWS Phoenix Public Information Statement, 24-hour precipitation reports, 8:29 a.m. MST Oct. 31, 2026; NWS Phoenix Severe Thunderstorm Warnings #160 and #161, Oct. 30, 2026; NWS Phoenix Flood Watch, expiration notice 4:56 a.m. MST Nov. 2, 2026; NWS Phoenix preliminary climate data (F-6) for Mesa Falcon Field, October and November 2026; NWS Phoenix Climate Report for Phoenix, Nov. 1, 2026. Rain totals are preliminary.