Why Chimneys Leak
Where the chimney meets the roof is the most complex waterproofing detail on your home. It requires step flashing (L-shaped pieces woven into each shingle course) and counter-flashing (embedded in the chimney mortar). When either fails — or when someone just goops caulk around it — water gets in.
The Caulk Trap
Caulk is not flashing. It cracks, shrinks, and fails within a few years. If a previous roofer "sealed" your chimney with caulk, it's a temporary patch, not a repair. We install proper metal flashing.
When to Address It
During roof replacement is ideal — the flashing integrates with new shingles. But we can also replace flashing on an existing roof.