so kevin r just to recap!! do you think i should spend the money and get the system???
If you want to get involved with commercial work, earn much more money than you can from window cleaning, and you are aware of the health and safety regulations (not the made up ones often quoted on here) and the alternative costs to do the job with cherry pickers or scaffolding or towers if low enough, then go for it.
But be aware there is a downside.
It takes a while to become established, payment is usually 30 days or more, the work can be much more demanding at times, you will go from mad busy to slack depending on the weather once established (heavy rain brings loads of work all at once).
Do your homework, add the service and you'll not look back.
My biggest bit of advice is you have to speculate to accumulate. you can have the best kit in the world but its useless if know body knows you have it. So spend some of your earnings on targeted advertising