Im confident that the job market is so tough out there, that if you look for the right people, you should have no problems finding someone worth employing.
The mindset is, that cos its a window cleaning job, all your able to put up with is a bunch if no hopers who cant read or write, have no decent communication skills, and are on drugs or in and out of prison.
I got some news for you, these are uneployable. why waste your time?
When i look for someone, its going to be a starting salary of 18k per year, company van, performance bonus, and a clear career path set to get to rounds manager in 5 years.
In return i want people who have at least 5 grades GCSE C and above, are physically fit, have a full uk driving licence, can demonstrate they are good communicators, and be polite, and well turned out.
Trust me, you will find them, they are out there, its beter than what b&q can offer and this is the minimum even they would accept.