A ventilation hood is mounted to an underside of a cabinet, including a bottom panel and a lower support frame positioned above a cooking appliance, by first and second brackets secured below the cabinet at spaced positions aligned with outermost edge portions of the lower support frame and at least one fastener assembly secured to a front portion of the ventilation hood. Multiple embodiments are disclosed for the at least one fastener assembly, including tabs bent from a housing of the ventilation hood, feet threadably attached to the hood, mounting blocks including snap connectors, threaded fasteners, and pinned bolts.