Panes are a check, minutes are the price
Two storefronts with 14 panes can be a 25-minute stop or a 50-minute one. Signs taped inside the glass, displays to reach around, a busy door with fingerprints at child height and a manager who wants to walk the job all add time that a pane count never sees.
The calculator works the other way round. Enter the minutes and it shows the price; divide by the glass and you get the per-pane figure. The example's $60.99 for 16 pieces of glass is about $3.81 each. If that looks low next to what others in town charge, your minutes or your rate are probably the reason, not the pane price.
At 25 minutes the same stop would be $43.89. At 50 minutes and 15 minutes off the route it is $82.65.
Timing a storefront stop
Start the timer when you park and stop it when the van door closes. That covers unloading the pole and bucket, outside glass, inside glass, both sides of the doors, frames and sills, and packing up. The example also counts a few minutes for working around displays, extra passes on the restaurant's door glass, the sign-off with the manager and a share of the billing.
Skip the first clean when you time it. Built-up grime, old stickers and scraping can take twice as long, and that is a one-time charge in the spreadsheet, not part of the regular price.
Then look at the drive. At $57 an hour, each minute between stops costs about 95 cents before profit, which is why a strip of shops next to each other is worth more than the same shops spread across town.
Weekly, every 2 weeks, monthly or every 2 months
The monthly price is the visit price times the visits: 4.33 for weekly, 2.17 for every 2 weeks, 1 for monthly and 0.5 for every 2 months. Glass cleaned less often is dirtier, so change the minutes when you change the schedule.
In the example, weekly glass that cleans in 36 minutes is $56.43 a visit and $244.34 a month. Monthly glass that takes 46 minutes is $67.83. Every 2 months at 52 minutes is $74.67 a visit, $37.34 a month. Keeping the 40-minute price on the monthly stop would give away 6 minutes every time.
What the quick estimate leaves to the spreadsheet
The $57 break-even rate is the example business's. Yours depends on your van, insurance, pure water system and how many weeks a year the weather lets you work. Find it with the true hourly rate calculator, and read how overhead becomes an hourly figure in the overhead and profit guide.
The spreadsheet adds a safety cushion, prices the van, pole and ladders by their running cost, charges the first clean and the insurance certificate separately, and prints a customer quote. Its version of this storefront is $64.91 a visit. The window cleaning pricing guide goes through it.