Hi Lee, if someone is insured/public liability , this would show a decent sense of legitimacy I would have thought. Especially when you consider the cowboys that come out late spring/summer time just for the beer money!
There is also the kind of window cleaning that a persons business may do. For example, I'm predominantly domestic with a few small business cleans thrown in. Therefore, I have little call for complicated h & s regs, just need basic common sense. However, others may be mainly big commercial cleaners requiring more stringent h&s requirements. But if you needed the h&s reqs to qualify for the Guild , it may isolate some potential members like myself who don't particularly need extra quals (or the extra expense acquiring them) from becoming members.