Method for manufacturing handles for cleaning utensils, wherein the method comprises the following steps: - cleaning at least one outer face of a metal strip applying a degreasing product, eliminating the traces of cutting and coolant fluid and industrial oils inherent to the cutting and manufacturing processes of the metal strip; - brushing the outer face of the metal strip to eliminate residue and condition its surface to achieve a better adhesion; - deforming the metal strip to form an open tubular structure with two facing longitudinal edges close to each other; - heating the longitudinal edges of the open tubular structure of the metal strip up to a welding temperature; - closing the open tubular structure of the metal strip completely until the longitudinal edges touch each other, maintaining the welding temperature; in this step a metal tube is formed when the two longitudinal edges are attached by means of a welding generatrix; - eliminating irregularities in the metal tube by means of a smoothing, grinding and hardening process; - eliminating impurities, such as grease and slag, in the metal tube coming from the welding process; - heating the metal tube up to a temperature delimited between 125 and 150 °C; - applying a first layer of adhesive on the outer face of the metal tube at a hot temperature delimited between 225 and 230 °C; - applying a second layer of plastic material on the first layer, also at a hot temperature delimited between 200 and 250 °C; - applying a third layer of plastic material on the second layer with a hot temperature between 200 and 250 °C; where the fluidity of this third layer is greater than the fluidity of the second layer. - cooling the set of the metal tube with the first layer, second layer and third layer in a first cooling pond; - cooling the set of the metal tube with its three layers (10a, 10b, 10c) in a second cooling pond after being in the first cooling pond; the temperature of the second cooling pond being lower than the temperature of the first cooling pond. - cleaning at least one outer face of a metal strip applying a degreasing product, eliminating the traces of cutting and coolant fluid and industrial oils inherent to the cutting and manufacturing processes of the metal strip; - brushing the outer face of the metal strip to eliminate residue and condition its surface to achieve a better adhesion; - deforming the metal strip to form an open tubular structure with two facing longitudinal edges close to each other; - heating the longitudinal edges of the open tubular structure of the metal strip up to a welding temperature; - closing the open tubular structure of the metal strip completely until the longitudinal edges touch each other, maintaining the welding temperature; in this step a metal tube is formed when the two longitudinal edges are attached by means of a welding generatrix; - eliminating irregularities in the metal tube by means of a smoothing, grinding and hardening process; - eliminating impurities, such as grease and slag, in the metal tube coming from the welding process; - heating the metal tube up to a temperature delimited between 125 and 150 °C; - applying a first layer of adhesive on the outer face of the metal tube at a hot temperature delimited between 225 and 230 °C; - applying a second layer of plastic material on the first layer, also at a hot temperature delimited between 200 and 250 °C; - applying a third layer of plastic material on the second layer with a hot temperature between 200 and 250 °C; where the fluidity of this third layer is greater than the fluidity of the second layer. - cooling the set of the metal tube with the first layer, second layer and third layer in a first cooling pond; - cooling the set of the metal tube with its three layers (10a, 10b, 10c) in a second cooling pond after being in the first cooling pond; the temperature of the second cooling pond being lower than the temperature of the first cooling pond.