plasterer
A tradesperson who applies plaster to walls and ceilings. The term 左官屋 is a common way to refer to a plasterer or the plastering trade, often used in everyday speech.
See also: 左官
I asked a plasterer to repair the wall.
When he was young, he worked as a plasterer.
The term 左官 (sakan) historically referred to a plasterer, and the addition of 屋 (ya) indicates a shop or person engaged in that trade. The exact origin of 左官 is uncertain, but it may be related to the left-handed trowel technique used by plasterers.