Abstract: Plant for laser scoring and laminating or vice versa a resealable label on a web material with option to dispense with lamination. The plant comprises: an unwinder station (A) from which a web (11) is fed to a support and guiding a laser station (B1) included in a guided passage of the above-mentioned web (11); a labelling station (B2) included in another guided passage of the above-mentioned web (11), and a slitter-rewinder station (C) to rewind and or slit the web (11) after treatment in the laser station (B1) and in the labelling station (B2), wherein the web (11) of flexible material is selectively driven to pass firstly through the laser station (B1) and then through the labelling station (B2) or the other way around, or to pass only through the laser station (B1). A method that implements the facility is proposed.