Hey @Clearview! Those needed some work for sure! It’s kinda tough to put a price on it since only sections of the windows are shown. Try getting some overall pics next time around.
I always carry a dustpan broom on my belt with me, that helps a ton with the cobwebs and surface dirt. Then I’d use one of my abrasive window mops, steel wool, and a scraper blade as long as it’s glass that can be scraped.
I’m going to do a house that dirty today, I didn’t price as much as a construction clean, but maybe in between CCU and standard. If you can run CCU pricing on it though then great. Charge what they’ll pay!