i cant help either sorry, my view is that per hour its not good money maybe like window cleaning the prices can vary across the country, i dont carry ladders for the simple fact i can not offer the service if i dont have means of access, i pass on the work and to be honest the rates they ask for it becomes untenable to the customer, i think some people think its a quick £10 job.
May be you could look at your window cleaning business and look to improve that and make more money from what you have. Bob