You will get a good response with flyers if the previous 'cleaner has deserted them - I did - he'd bogged off and left 'em about twelve months previously.
My return was about 30% in one street, and probably about 15% in several others - I was bl**dy lucky!
I now find that I get most work from referrals and because people see me out working - I went out last Saturday and did two that I didn't have time for on Thursday - got three more!
I reckon that it was because I was there on a day other than "normal", so people who are normally at work were on the street and spotted me.
Remember "Baldeagle's" rules for the aspiring window cleaner......
Rule 1. Flyers NEVER work - except when they do, of course.
Rule 2. All other methods ALWAYS work - except when they don't, of course.
Just stick at it - don't be put off, we've all, [I think], been through it, all had the same doubts - don't forget, you are dealing with people - they can be funny - the job would be better if we didn't have them to screw things up - but we would also be poorer!
Baldeagle in Staffordshire