Most skylight leaks start at the flashing where the curb meets the roof deck, not at the glass itself. West Covina Roofing Services repairs flashing and reseals existing units, or replaces the skylight outright when the curb has rotted or cracked — either as a standalone repair or bundled into a full re-roof.
A fogged or cloudy skylight and a leaking one are two different problems. Cloudiness means the seal between the two panes has failed — a manufacturer defect covered under the unit's own warranty, not a roofing issue, and no amount of re-flashing fixes it. An active leak is different: water tracking down the shaft, or a stain spreading around the frame, almost always traces back to the flashing or the curb underneath the unit.
West Covina Roofing Services installs and repairs skylights as a standalone call or as part of a larger tear-off. A skylight added during a full re-roof is simpler than cutting into a finished roof afterward — the deck is already open, so the curb gets flashed and tied into the new underlayment in one pass instead of two separate jobs.
Do I need a new skylight, or just new flashing?
Cracked, corroded, or improperly stepped flashing around an older skylight causes most of the leaks we get called on — the fix is re-flashing and resealing the curb, not swapping the unit. Replacement makes sense when the curb itself has rotted, the frame has warped, or the glass has failed structurally. We check both before quoting either one.
How do I tell a leak from condensation?
The four patterns below cover most calls we get on skylights in West Covina.
- Fog or a milky haze between the panes — seal failure inside the unit, not a roof problem
- Water only during wind-driven rain — flashing failure on the weather side of the curb
- Water after every rain, light or heavy — a failed curb seal or a cracked pan underneath
- Drips that show up hours after the rain stops — condensation running down the shaft, common on cold nights
Is a skylight added to an existing roof different from one added during a re-roof?
A new opening cut into a finished roof means matching the existing flashing profile and tying into whatever underlayment is already down, which is more finish work than installing one during a tear-off. Both are routine — a single retrofit skylight just costs more in labor per unit than adding two or three while the deck is already open for a full re-roof.
Can a leaking skylight be repaired without replacing the whole unit?
Yes, if the leak is coming from the flashing or the curb seal rather than the glass unit itself — that's the majority of what we see. We check the flashing first and only recommend replacing the unit if the curb has rotted or the glass has failed structurally.
Is a foggy skylight covered by my roof warranty?
No. Fogging between the panes is a seal failure inside the skylight unit itself, which falls under the manufacturer's glass warranty, not roofing work. If the roof around it is also leaking, that's a separate, unrelated repair.
Do you install new skylights, or only repair existing ones?
Both. New installs are simplest when they're part of a full re-roof, since the deck is already open; retrofitting one into a finished roof is a smaller, separate job we also handle.
Why trust a general roofer with a specialty job like a skylight?
Skylight flashing uses the same step-flashing and underlayment skills as any tear-off — it isn't a separate trade. West Covina Roofing Services is rated 5 from 17 Google reviews; call (626) 631-5445 and we'll look at the roof before quoting anything.