Can stone veneer be installed over an existing brick fireplace surround?

Often, yes—if the brick is sound, firmly bonded and properly prepared. Paint, soot, sealers and loose mortar can prevent a reliable bond, so they must be addressed before installation. Some surfaces need an approved lath-and-mortar system rather than direct bonding. The veneer’s weight, supporting construction and added thickness also need evaluation. Keep required clearances to wood mantels and trim, and do not cover fireplace vents or access panels. Decorative veneer is not a substitute for firebrick inside the firebox. Follow the fireplace and veneer manufacturers’ instructions, check local requirements, and have a qualified professional assess the existing surround.