Drywall repair in Richmond Hill often means a lower level that is only half underground. The lots north through Oak Ridges and around Bayview Hill slope, so plenty of houses have walk-out basements with full windows, patio doors and finished walls that see real weather.
I am Sercan and I handle the whole repair myself. On a walk-out the damage usually sits near a door or window head, so I work out where the water came from before I board anything. After that it is the standard sequence: cut, back, tape, coat, sand and blend.