Chimney sweeping involves the cleaning, by direct mechanical action, of the inside wall of the flue, in order to remove soot and deposits and ensure that the entire length of the flue, including connecting pipes or flues, is clean.
The stumps and accessories of the flue or ventilation ducts, such as aspirators, bolsters, etc., are checked during chimney sweeps and repaired if necessary.
The use of fire or explosives is prohibited when sweeping flues.