@Barry222 - The way to find out if your chimney needs sweeping is to get it swept! If you read the trade association & solid fuel advisory service websites, their wording for the recommendation of sweeping solid fuel flues is once every three months of use (which is a bit vague). The certificates issued in the UK are valid for 6 months for insurance purposes, but most of my customers get chimneys swept annually. I am currently still wrapping up the busy season in the UK, but planning to be back in Spain soon. I don't man my Spanish mobile at home but email is spain at chimneydoc dot co dot uk (*)
@chrisinspain, I am based in Fortuna, Murcia and happy to cover 25km for single jobs, but will travel further if there are a few in an area. In Spain, I exclusively use rotary power sweeping due to the nature of flues and the fact that they all seem to be heavily tarred — possibly due to the nature of the fuel. In the UK, I charge £48 for this service, so if I ever get to the point of moving to Spain, the cost will surely increase (but not by that much!)
*Sorry - cant post full email address as my account has not been 'aproaved' apparently. - I've been on here several years but no idea how to do do that!