The shops that deal with Japanese clothing is generally called 'Gofuku-ya,' although the word Gofuku is not specifically used to indicate Japanese clothing. as frequently as Wafuku and Kimono.
和服そのものを指す語としては「和服」「着物」に比べ使用頻度は低いが、和服を扱う店は「呉服屋」と呼ばれることが多い。