decorator vs house decorator

decorator and house decorator both are nouns.

Word	Noun	Adjective	Verb	Adverb
decorator	Yes	No	No	No
house decorator	Yes	No	No	No

As nouns, decorator and house decorator are synonyms defined as:

decorator and house decorator: a person who specializes in interior decoration

Other synonyms of decorator include interior decorator, room decorator.

decorator (noun)	house decorator (noun)
someone who decorates	a person who specializes in interior decoration
a person who specializes in interior decoration