Cracked mirrors may be fixed by professional glass makers or as a do-it-yourself project. According to CostOwl.com, the cost of repairs is typically between $10 to $20 per square foot as of 2014.
Cracked mirrors may also be mended by applying super glue to the crack. This technique does not fix the cracked glass, but it does keep the glass intact. Another option is to cover the crack with tiles or a decal as a camouflaging decoration if the cracks are in a convenient spot. In some cases, the damage of the glass may be too severe, in which case the mirror frame may be finished with new glass.