Restoration of stone is the restoring of worn stone–marble, travertine, granite, etc.—to the state in which it was installed. Or better. It may also entail the altering of the stone’s surface to match a desired finish of the installation’s owner or management. In some cases an owner may desire a polished finish to be changed to a honed finish or vice versa. Restoration includes the use of such techniques as: polishing, honing, grinding (lippage removal), deep cleaning, sealing, and chip/crack repair.