Abstract: There is disclosed a chimney cleaner comprising a frame of rectangular cross-section narrower than the internal dimension of the chimney flue to be cleaned and having a substantial vertical height with spring-loaded pivotal flue side-scraping blades mounted to swing outwardly and upwardly from the sides of the frame to firmly contact and scrape the sides of a flue; preferably there are four blades with two oppositely disposed blades displaced vertically from the other two oppositely disposed blades whereby the blades may be substantially the full width of the flue and yet not interfere one with the other.