Hi David (dreamclean) and welcome to the Forum.
I know I'm risking ridicule ,but convinced answer lies on these lines and would appreciate input
We don't go in for ridicule here, your views are valued. Anyone who thinks otherwise will be swiftly dealt with!
We all work at different speeds, and location plays a big part
Quite right, its not just the location of a town, but also locations
within a town will differ.
Pricing a house is a complex task, its sometimes very difficult to tell how long it will take until you actually do it. But your system seems to take account of most things that would take up extra time.
I agree it would be handy to have a definitive price guide, so after a few weeks, when most people have replied to this post, I will do a tally up, and work out the averages for each area of the country. It'll be a bit "quick & dirty" but it will enable us to compare what other pro window cleaners are charging near where we live, and any new work can be priced a little better perhaps.
After all, if we make the effort to be pros, (and many do not) we should charge more. Double, in fact.
As you are the expert as to your system, could you give us your best guess for these 8 houses?
Thanks for your contribution.
Philip