Wood rot around doors shows up at thresholds, brickmold, and lower jambs. Seal and patch only after the water source is fixed and soft wood is gone.
Trace the leak
Look at flashing above the unit, caulk joints, storm-door sweep gaps, and sprinkler overspray. Paint failure alone is not the root cause.
Remove and replace
Cut out soft trim and jamb stock. Install new exterior-grade wood or composite trim with proper flashing tape where the wall assembly requires it.
Patch small areas
Dry the cavity, apply consolidant if using epoxy systems, fill, shape, prime, and paint. Keep filler off surfaces that must stay dimensionally accurate for weatherstripping.
Sealing details
Use exterior-grade sealant at joints that move. Do not caulk over weep paths that manufacturers leave open on purpose.
For more repairs like this, start in the Doors & Windows hub. If you are working through a related problem next, see How to Properly Sand Down a Wood Door: Professional Tips or Hole in a Wood Door: Simple Patching and Refinishing Guide.
