Anything painted shut I would let her know your not cleaning. They have to be moving up and down for me to clean them. I would let her know not to expect miracles , they’re old Windows there will be stains that don’t come out. Let her know price does not include restoration
I used to take those darn things apart, anything over an 8x8 and I refer them to another company with younger employees. Half the time they’re painted shut or the aluminum is so corroded you can’t put them back in.
The more recent ones aren’t bad, typically anything from 1980’s+ is workable.
Jersey always says to set the expectation. Let them know this is a difficult job and you’ll clean what you can. Make sure they know that all the windows need to be functional and able to open. Most of the time people who have storm’s understand that you’re not restoring the window.
Also bring a stick to keep the windows open.
“Full service window cleaning for double hung with triple track storms or casement with interior lift out storms. Includes the inside glass, outside glass, both sides of 2 storm panels, and a basic wipe down of sills and screen frames. Does NOT include hard water stain removal. Deep screen cleaning is available at an additional cost. Deep sill cleaning is not included or available. We do not remove wooden storms or storms screwed in, whether interior or exterior. It is at the discretion of the technician to determine which windows are in good enough condition for service. Deep sill cleaning and track cleaning is not available. Windows that cannot be taken apart will be partially cleaned or skipped at the customers discretion (with any changes to scope reflected on final bill).”