Can I use a fireplace surround to cover marble facing and hearth?

Yes, you can use a fireplace surround to cover marble facing and hearth, as long as the surround is designed for that purpose and meets safety standards. Ensure that the materials used for the surround can withstand heat and are appropriate for use around fireplaces. It's also essential to follow local building codes and guidelines to ensure proper installation and safety. If unsure, consulting a professional is advisable.