This is my point. If it takes the skill factor away, at least in comparison with a squeegee, & you don't need a ladder, won't more folks do there own windows once the technology starts to become available in B&Q & such places?.
There's a danger of going round in circles on this one. Only time will truely tell, but I think to totally dismiss the threat is Ostritch like.
It is true of course that the technology is not new & as yet I do not know a single home owner who even possesses their own kit, let alone uses it, but then it was only a year ago that I first thought about investing in a WFP. In that time, the product has become almost common place in the hands of window cleaners.
You may be thinking, why is he getting himself so worked up about this?. Whatever the effect, it will only ever be marginal, but I'm trying to make a long term marketing decision. Stay focused, or diversify. My choice whould be to stay focused. My problem is that I want to develope a marketing cooperative to drive on my window cleaning business. If I do this now, it will make it very difficult to diversify at a later stage if my fear turns out to have some substance.