Is glass tile good for shower walls? Yes, and this guide breaks down why: a non-porous, mold-resistant surface that reflects light and holds its color for years. It also covers the real trade-offs (higher cost, visible water spots, the need for a skilled installer), where glass tile works best in a shower (accent strips, a full feature wall, niche backing), and how it stacks up against ceramic so you can decide if it fits your space and routine.