Surface wettability is a useful feature in many coating or bonding technological operations, where adhesion conditions play a crucial role for the efficiency of the technology and the durability of the produced parts. The article presents an analysis of different ways of creating surface wettability. Based on experimental studies conducted on EN AW-2024 and EN AW-5083 aluminum alloys samples, the effects of laser processing performed with different parameters of a 500 W pulsed laser are shown in the context of the achieved wettability of the sheet surface. The effects of laser treatment were related to the delivery condition (rolling) and compared with typical technological operation of surface preparing used for aluminum alloys: grinding, manual sandpaper processing, sandblasting and chemical treatment (allodyning). The aim of this study is to analyze the energy properties of aluminum alloys. Surface free energy calculations were carried out based on measurements made with two liquids, water and diiodomethane. Attention was paid to the reproducibility of surface effects, or lack thereof, resulting from the nature of the used treatment. Advantages and disadvantages were pointed out for the described methods of preparing the sheet surface for coating (painting, gluing). The possibility of improving surface wettability more effectively by laser treatment compared to other traditional methods was emphasized. Finally, it was found that, in the case of EN AW-2024 alloy, treatment with the selected laser at a scanning speed of Vs = 2000 mm/s and pulse frequency fi = 15 kHz allowed a surface energy of γs = 85.8 mJ/m2 to be obtained, while a maximum of γs = 64.4 mJ/m2 (after grinding) was obtained after conventional treatment. In the case of EN AW-5083 alloy, the best energy results were obtained after laser treatment with scanning speed Vs = 2000 mm/s and pulse frequency fi = 10 kHz, when free surface energy γs = 75.5 mJ/m2 was obtained, while the conventionally prepared surface was characterized by energy γs = 53.9 mJ/m2 (after sandblasting).