If you splash around doggy-paddling in the shallow end you'll not become a good swimmer.
Here's how I did it - and I think it is easy even now two years on to forget the pain of change. But life is soooooo sweet now!
No fear of a fall.
More income.
Less body wear.
And a better result for my customers.
Come on guys - take the plunge properly.
1. Send a letter to every customer you want to keep.
Explain that your reading of the H/S regs, means you are severely restricted in ladder use and that there may be insurance issues if a window cleaner continues trad on their property. (That will explain to the reasonable and put a bit of fear into the remaining ones -
You fall - they pay because they won't let you use the safest gear is a scarey if remote possibility.)
Explain the frame cleaning etc.
1b If you've got time do a low suds gg3/gg4 clean and wipe top frames, vents and cills as your last trad.
2. Do a really thorough first clean wfp, frames and all and rinse rinse rinse - like you do for a new customer - it pays massive dividends for the future.
You will now feel cheesed off at the time it has taken - new ways - tripping up over hoses - broken ornaments.
3. The really unreasonable will leave - about 3 in my case. The rare georgian with 100 yr old leaky frames will be dropped. 1 in my case. Hooo-flippin'-ray!
4. Reap the rewards, learn from the niggles - ask here - and don't get despondent! Go microbore and lighter poles. On UPVC and most others the results will be better by the third clean. Soap gone, technique improved. I can now bring up a first clean perfectly - it takes longer but I know what to do.
Add and charge for windows above conservatories and rooflights as you want to.
5. Be an optimistic fart like me! It's great!
Modified to add - I missed biscute's reply because I'm so long-winded - he is so right!