preserver vs restorer

preserver and restorer both are nouns.

Word	Noun	Adjective	Verb	Adverb
preserver	Yes	No	No	No
restorer	Yes	No	No	No

As nouns, preserver and restorer are synonyms defined as:

preserver and restorer: a skilled worker who is employed to restore or refinish buildings or antique furniture

Other synonyms of preserver include refinisher, renovator.

preserver (noun)	restorer (noun)
rescue equipment consisting of a buoyant belt or jacket to keep a person from drowning	a skilled worker who is employed to restore or refinish buildings or antique furniture
a skilled worker who is employed to restore or refinish buildings or antique furniture
someone who keeps safe from harm or danger
a cook who preserves fruits or meat