Pasadena Roof Repair: Stop the Leak, Then Fix the Cause
A drip in the hallway is only the symptom. This guide walks Pasadena homeowners through finding the real problem and choosing the right fix.
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What Pasadena roofs are up against
Pasadena's housing is mature. Half of its homes were built before 1977, according to the U.S. Census Bureau's American Community Survey 2020-2024. That puts many houses at 49 years old or more. Even when the shingles are newer, the deck boards, roof vents and flashing around chimneys are often original, and those older parts are where leaks tend to begin.
Weather keeps the pressure on. NOAA's Storm Prediction Center logged 28 hail reports within 10 miles of Pasadena from 2015 through 2024. Seven of them reached 1.75 inches, and large hail showed up in 2019, 2023 and 2024. Hail of that size can crack shingles and dent metal without causing a leak on day one. The water usually comes later, after the damaged spot weathers for a few months.
Add the heavy rain that comes with Gulf storms, and small gaps that stay dry most of the year can start to leak during one long downpour.
Tracking down a leak
Start in the attic
With a flashlight, look for wet wood, dark stains or damp insulation above the ceiling spot.
Follow the path uphill
Water runs along rafters and the back of the deck before it drips. The entry point is usually higher on the roof than the stain.
Check the usual suspects
Pipe boots, chimney flashing, valleys and roof vents cause most leaks. Read roof leaks around chimneys and vents.
Confirm from the roof
A roofer checks the area from above, photographs the cause and writes up the fix.
Fixes by roof type
Asphalt shingle
Cracked or missing shingles are replaced and sealed into the course above. Our post can you repair a roof without replacing all shingles covers when that works.
Metal
Loose or backed-out fasteners and worn washers are a common cause. They are replaced, and seams are checked.
Tile
Broken tiles are swapped, and the underlayment below is checked, since that layer is what keeps water out.
Flat sections
Patios and additions with flat roofs often leak at seams and edges where the membrane has aged.
What to do and what to skip while you wait
Do move valuables and put a bucket under the drip.
Do poke a small hole in a bulging ceiling to let water drain in a controlled way.
Do take photos of stains and wet spots with the date.
Skip climbing on a wet roof. Falls are a bigger risk than the leak.
Skip caulking every gap you see. Sealant in the wrong spot can trap water. See what to do after discovering a roof leak.
Repair today, plan for tomorrow
Most leaks can be fixed with a targeted repair. But if the roof has leaks in several places, shingles are curling across whole slopes, or the deck feels soft underfoot, a repair may only delay a larger job. In that case, compare the options on our roof replacement in Pasadena page.
GemSco is family owned, fully licensed and insured, and works on asphalt shingle, metal, tile, wood shake, stone-coated, low-slope and flat roofs. Estimates are free. For water coming in right now, see emergency roof repair. For everything else, visit roofing in Pasadena.
Frequently Asked Questions
Why does my roof only leak in heavy rain?
Light rain drains before it finds the gap. In a hard, long storm, water backs up under shingles at valleys, flashing or worn pipe boots, and wind can push it sideways. A leak that only appears in big storms usually points to one of those spots rather than a hole in the open field of the roof.
Can one roof repair fix hail damage?
It depends on how widespread the damage is. Hail tends to hit an entire slope, not one shingle. If the bruises and cracks are scattered across the roof, spot repairs will not solve it. An inspection shows whether the damage is limited or general.
How soon should I fix a small leak?
As soon as you can. A small leak can soak insulation, rot decking and stain drywall long before it gets dramatic. The longer water gets in, the more parts of the house need to be repaired along with the roof.
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