A roof hits a point where the cost of the next repair, and the one after that, starts to exceed what a full replacement would cost over the same span. Where that crossover falls depends on the age of your roof, how widespread the damage is, and whether the decking underneath is still sound. The roofer looks at all of it, takes photos, and gives you a written estimate that breaks things out clearly, so you can make an informed call rather than a pressured one.
For most Grand Junction homes, replacement means stripping the existing shingles to bare decking, inspecting every board for UV-baked rot or hail damage, installing ice-and-water shield at eaves and valleys, and laying new architectural asphalt shingles rated for our wind and impact loads. They talk through material options honestly, including the trade-offs between standard and impact-resistant shingles for our hail season, and tell you what they would do if it were their own roof.