Extending the life cycle of roads involves improving their environmental and economic impact. Various types of fibers have been presented as an innovative solution to improve the mechanical performance of hot asphalt mixtures and increase its durability. However, their use has not been widespread, mainly because of their high cost compared to other materials commonly used in road construction. Reinforcing asphalt mixtures with recycled fibers could be a viable alternative to overcome the cost disadvantage and ameliorate the environmental impact of both the asphalt mixture and the industry from which the fibers originate. This paper presents the mechanical performance of different recycled fibers added to an asphalt concrete (AC) mixture and a porous asphalt (PA) mixture as part of the ASFIVAL project. The results were compared with a reference mixture made with conventional bitumen and a control mixture made with polymer modified bitumen (PMB) in order to evaluate their mechanical performance and to see if the improvement was as effective as the use of PMB. The three fibers showed good mechanical performance compared to the reference and even matched the control values in some properties.