Thanks for the advice chaps, but we don't just do carpet cleaning. We have grown our business into pressure washing and window cleaning, but granted we haven't cleaned roofs before. I take it you had to clean a roof for the first time at some point and have built up your knowledge from there. We'll all trying to get on and better and do well. Rest ashored if and when I take on this type of work I will do a professional job which both the client and I will be happy with.
Thanks for your comments and advice.
Kind Regards