Roof Leak Repair Solutions logo Roof Leak Repair SolutionsHOLLISTER, CA Call Now(888) 974-0663

Why Your Skylight Is Leaking (and the Real Fix)

Skylight leak causes and fixes in Hollister, CA
Emergency Quick Call

Roofing Professional • Insured Team

By Roof Leak Repair Solutions • Updated 2026-10-12 • Hollister, CA

Skylights leak more than almost any other roof feature — but here's the surprise: the skylight itself is rarely the problem. In our experience across Hollister, the culprit is the flashing around the skylight curb about 80% of the time. Here's how to tell what's actually wrong and what the lasting fix looks like.

The usual suspects, in order

Failed curb flashing is number one: step flashing that's corroded, lifted, or was never installed correctly lets water in around the unit. Number two is underlayment failure around the curb — the waterproof layer beneath the shingles deteriorates faster at penetrations. Number three is the skylight-to-curb seal drying out. Actual skylight unit failure — cracked frames, failed glass seals — comes in a distant fourth.

Then there's the impostor: condensation. On cold mornings, warm moist indoor air condenses on cold skylight glass and drips — looking exactly like a leak, but it's a humidity and ventilation issue, not a roofing failure. Rule of thumb: drips during rain = leak; drips on cold dry mornings = condensation.

What a proper skylight repair involves

We lift the surrounding roofing, remove the failed flashing, renew the underlayment around the curb (integrated correctly with the field underlayment), install new step and head flashing, and reseal the unit to the curb. If the skylight itself is fogged between panes or the frame is compromised, we'll recommend replacing the unit — with all-new flashing, which is half the value of the job anyway.

When replacement beats repair

Consider a new skylight when the glass is permanently fogged, the frame is cracked or warped, the unit is 20+ years old with obsolete seals, or you're already paying for a full flashing rebuild and the incremental cost of a new unit is small. Modern skylights also offer much better energy performance — a nice bonus.

Leaking skylight? Roof Leak Repair Solutions diagnoses leak vs. condensation honestly and rebuilds the flashing right. Call (888) 974-0663 for a free estimate in Hollister.

Related Articles

Dealing with an active leak? Roof Leak Repair Solutions is your local roof leak team — call (888) 974-0663 today. Our call representatives are available 24/7 for emergencies.

What Hollister Homeowners Should Do Next

If this guide matches what you are seeing at home, the next step is simple: get eyes on the actual roof before the next rain. In Rancho San Justo, where 1970s to 1990s tract homes around Rancho San Justo Middle School in south Hollister, small issues turn into interior damage faster than most homeowners expect. A skylight curb rebuilds visit gives you the full picture — entry point, extent, and options — with photos you can keep.

When you call (888) 974-0663, describe what you have noticed: where the stain is, when it appears, and which way the wind was blowing. That detail helps us aim the confirming the source from the first minute. For skylight leak repair in Rancho San Justo specifically, see our skylight leak repair in Rancho San Justo page for how the local housing and weather change the work.

One more thing worth doing today: check your attic or top-floor closets with a flashlight. Fresh stains, damp insulation, or a musty smell all mean water is active. Note what you find — and if anything is actively dripping, call (888) 974-0663 now rather than waiting for morning.

And keep this number handy: (888) 974-0663. The homeowners who fare best in Hollister's rainy season are the ones who call at the first stain, not the third storm. A quick inspection now is the cheapest roofing money you will ever spend.

Related Questions

Classic flashing failure pattern: the flashing handles calm rain but wind pushes water sideways past the compromised detail. Rebuilding the flashing solves it.

Yes — and that's the right call when the unit itself is sound. Most of our skylight jobs are flashing rebuilds, not replacements.

Flashing rebuilds typically run $600–$1,500 in Hollister. Full unit replacement with new flashing runs higher depending on size and roof type.

Roof Leaking in Hollister? Don't Wait.

A small leak becomes a big repair fast. Call your local roof leak team now.

Call Now: (888) 974-0663 Call Now

Hours: Mon-Fri: 8:00 AM - 6:00 PM, Sat: 9:00 AM - 2:00 PM, Sun: Closed • Our call representatives are available 24/7 for emergencies.

Call (888) 974-0663