I trained with the National Association of Chimney Sweeps (NACS), in 2011 and am based in Chard.
I take great pride in my work.
The reason you need to engage a chimney sweep is to ensure that the deposits built up by using your appliance are removed.
It takes me at least an hour to sweep a flue to a high standard and remove these deposits. A clear flue is a healthy flue and ensures you and your families safety.
I have traditionally used a brush and rod system but have now invested in a powered sweeping system using different brush heads and rods and a drill. The results speak for themselves, but I am best placed to decide which method to use based on your flue.
An older dwelling may require more traditional methods to sweep the chimneys.