Wall and chimney joints
Open the surrounding roofing and integrate step or counterflashing with the adjacent wall. A cricket can direct water around a chimney where the roof design calls for one.

The joint between a roof and a wall needs a reliable water path. Repair failed flashing where surfaces, chimneys and penetrations meet.
Flashing directs water past the interruptions in a roof. Step flashing works beside shingle courses at a sidewall. Counterflashing protects the wall-side joint. Pipe flashings and roof curbs seal penetrations through the covering.
A joint that separates, corrodes or is covered in repeated surface patches can leak even when the main shingle field remains sound. The repair must restore the overlap between roofing, flashing and the adjacent surface.

Water should pass over each layer toward the eaves. A flashing piece placed on top of the wrong layer can leave an opening behind it, and a surface seal does not necessarily correct that path.
Open the surrounding roofing and integrate step or counterflashing with the adjacent wall. A cricket can direct water around a chimney where the roof design calls for one.
Use compatible boots and flashing details around the actual penetration. Deteriorated seals and poor fastening require more than a cosmetic top coat.
Inspect the flashing and the adjoining roof and wall materials. A chimney leak can also involve masonry above the roof.
Remove material as needed to restore correctly layered connections to a sound substrate.
Masonry or siding damage may need separate work so new roof flashing has a sound, weather-resistant termination.
Flashing cost depends on the detail and access. A pipe boot differs from a chimney with multiple corners, counterflashing and masonry deterioration. Brittle surrounding shingles or damaged decking expands the opening needed for sound work.
Replacement planning is a good time to address old roof-to-wall details while the covering is removed. Reusing a failed flashing joint under new shingles leaves the cause in place.
A wider roof repair assessment helps when the surrounding covering also needs work.


Tell us where the property is and what you've noticed. A free roof inspection helps establish the next useful step for your roof flashing repair.