Chimney, valley, vent-pipe, and skylight flashing. These are the #1 source of roof leaks. We tear out failed flashing and re-install with proper step/counter-flashing detail.
Flashing is the #1 source of roof leaks. Chimneys, valleys, vent pipes, skylights, and dormers all rely on metal flashing to keep water out. When the sealant fails or the flashing itself corrodes, water finds its way inside.
Chimney flashing. Step-flashing and counter-flashing where the chimney meets the roof. Most chimneys need flashing replaced every 15-25 years. $400-900.
Pipe boot replacement. Rubber gasket around plumbing vents. Lifespan 8-15 years in Oklahoma sun. $185-325.
Valley flashing. Where two roof sections meet. If failing, the underlayment may also need repair. $600-1,400.
Skylight flashing. Specific to the skylight manufacturer. $350-850 depending on accessibility.
If a contractor offers to "just put new caulk on it," that's a 6-month patch — not a fix. Proper flashing repair tears out the failed flashing, fixes the underlying issue, and installs new step/counter-flashing with proper roof integration.
