Ask any roofer where leaks happen and skylights make every list. Yet millions of skylights never leak a drop. The difference is entirely in the installation.
What good installation looks like
Modern curb-mounted and deck-mounted skylights with manufacturer flashing kits, installed with proper step flashing and ice-and-water barrier, are extremely reliable. Problems come from improvised flashing, sealant-only installs (sealant is a maintenance item, not a waterproofing plan), and old single-pane units past their lifespan.
Replacing during a re-roof
If your roof is being replaced, replace aging skylights at the same time — the marginal cost is small and it resets both warranties together. We flash every skylight to manufacturer spec and stand behind it in writing.
Frequently Asked Questions
Do skylights leak?
A properly installed skylight with correct flashing rarely leaks; most skylight leaks come from poor installation or old, failed flashing. Replacing an aging skylight during a re-roof is the best time to prevent problems.
Should I replace my skylight when I replace my roof?
Usually yes. If the skylight is more than a decade or so old, replacing it during the re-roof avoids tearing into a new roof later and ensures the flashing integrates properly.
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