Trash compactors are a niche residential appliance — most LA homes we service have either a built-in under-counter unit (KitchenAid Architect, Whirlpool Gold, GE Profile) integrated into kitchen millwork, or a free-standing model in a utility room or pantry. The repair-vs-replace math differs significantly between the two.
Built-in units at year 8-12 with a single-component failure (ram motor, drive gear, switch) usually pencil as repair because replacement requires removing the existing unit, modifying cabinetry to fit a new compactor (sizes vary by model), and reinstalling — total cost usually exceeds the repair. Free-standing units at year 8+ with a major repair like ram motor ($380-$540) on a $400-$700 retail unit usually lean replace.