One-Hour Cleaners is located at 1164 S Diamond Bar Blvd, Diamond Bar, CA. This location is in the Walnut Valley neighborhood. This business specializes in Laundry Services and has 1 review(s) with a star rating of 5.0. One-Hour Cleaners is open Mon, 7am-7pm; Tue, 7am-7pm; Wed, 7am-7pm; Thu, 7am-7pm; Fri, 7am-7pm; Sat, 8am-5pm; Sun, Closed and accepts All Major Credit Cards, Cash, Mastercard and...