A façade component, comprising a glass window and a secondary frame connected to the glass window by means of a plurality of connectors, wherein: - the glass window comprises a multilayer panel with a first glass layer formed of at least a first glass sheet and a second glass sheet adjacent and glued to each other, a second glass layer formed of at least one glass sheet which is separated and spaced apart from the first glass layer by a sealing spacer extending along a periphery of the multilayer panel, and a gap delimited by the first glass layer, the second glass layer, and the sealing spacer, - the secondary frame comprises a plurality of secondary elongated metal profiles having a cross section shape which is substantially constant along a longitudinal extension thereof and forming: - an engagement surface facing the glass window, - a connection portion, opposite to the engagement surface, for connecting the secondary frame to a primary frame of façade, - a first gasket seat formed in the engagement surface and accommodating a first gasket extending along the whole secondary profile and interposed between the engagement surface and the glass window, - an engagement seat forming a plurality of engagement holes opening into the engagement surface and each receiving an engagement portion of one of the connectors, respectively, - the connectors each comprise an expansion portion anchored in an expansion hole in the first glass layer, a pin connected to the expansion portion and forming the engagement portion, as well as a releasable tightening member which engages the engagement portion of the connector and the engagement seat of the secondary frame and tightens the glass window against the secondary frame, wherein the expansion hole and the expansion portion extend through the first glass sheet bordering with the secondary frame and into the second glass sheet adjacent to the first glass sheet on a side opposite to the secondary frame, wherein the expansion hole and the expansion portion have at least one local widening (26, 70) which creates an anti-extraction shape coupling between the connector and the first glass layer. - the glass window comprises a multilayer panel with a first glass layer formed of at least a first glass sheet and a second glass sheet adjacent and glued to each other, a second glass layer formed of at least one glass sheet which is separated and spaced apart from the first glass layer by a sealing spacer extending along a periphery of the multilayer panel, and a gap delimited by the first glass layer, the second glass layer, and the sealing spacer, - the secondary frame comprises a plurality of secondary elongated metal profiles having a cross section shape which is substantially constant along a longitudinal extension thereof and forming: - an engagement surface facing the glass window, - a connection portion, opposite to the engagement surface, for connecting the secondary frame to a primary frame of façade, - a first gasket seat formed in the engagement surface and accommodating a first gasket extending along the whole secondary profile and interposed between the engagement surface and the glass window, - an engagement seat forming a plurality of engagement holes opening into the engagement surface and each receiving an engagement portion of one of the connectors, respectively, - an engagement surface facing the glass window, - a connection portion, opposite to the engagement surface, for connecting the secondary frame to a primary frame of façade, - a first gasket seat formed in the engagement surface and accommodating a first gasket extending along the whole secondary profile and interposed between the engagement surface and the glass window, - an engagement seat forming a plurality of engagement holes opening into the engagement surface and each receiving an engagement portion of one of the connectors, respectively, - the connectors each comprise an expansion portion anchored in an expansion hole in the first glass layer, a pin connected to the expansion portion and forming the engagement portion, as well as a releasable tightening member which engages the engagement portion of the connector and the engagement seat of the secondary frame and tightens the glass window against the secondary frame,