Source : Webster's Revised Unabridged Dictionary (1913)

Renovator \Ren"o*va`tor\ (r?n"?-v?`t?r), n. [L.: cf. F.
   r['e]novateur.]
   One who, or that which, renovates. --Foster.

Source : WordNet®

renovator
     n : a skilled worker who is employed to restore or refinish
         buildings or antique furniture [syn: {refinisher}, {restorer},
          {preserver}]