A calculator can speed up window cleaning estimates, but only if the inputs reflect the job. Use this guide to turn panes, add-ons, access, labor, travel, and margin into a quote you can explain to the customer and still profit from after the work is done.
Count the panes the customer expects you to clean, then choose exterior only, interior only, or both sides before adding any discount. The calculator output is only useful when the pane count and scope match the actual job.
Screens, tracks, French panes, paint specks, oxidation, and hard-water spots change production speed. Enter those add-ons separately so the base pane rate does not hide slow labor.
Second-story work, ladder moves, locked gates, downtown parking, and long drive time should raise the quote before margin is checked. Treat access as a job condition, not a favor.
Use the crew size, hourly cost, overhead allowance, and desired gross margin to test whether the customer-facing quote still pays the business after real production time.
If you have not seen the glass, quote a range and list the assumptions. A range protects you when screens are brittle, tracks are packed, or mineral buildup is worse than the photos show.
Small residential refresh
Use the minimum callout first, then add panes, screens, tracks, and interior access. Small homes often look cheap by pane count but still require travel, setup, and admin time.
Two-story full-service home
Apply the story/access multiplier before discounting. Interior coordination, ladder moves, and screen handling usually decide whether the bid is profitable.
Storefront route stop
Model the first stop and the recurring cadence separately. Dense routes can carry a discount, but a single low-frequency storefront still needs a minimum visit fee.
One-time commercial bid
Add walkthrough time, tenant coordination, lifts, after-hours access, and crew movement. Do not use route pricing for a one-off building unless setup time is truly low.
Quote workflow
Once the calculator output passes the margin check, quoting software can keep the scope, follow-up, visit notes, invoice, and customer history in one place.
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A clear quote note reduces price disputes. List whether the bid includes inside glass, outside glass, screens, tracks, ladders, water-fed pole work, hard-water treatment, and return visits. For equipment-heavy jobs, review the buying and workflow checklist on the window cleaning tools page before promising a scope your crew cannot produce efficiently.
Enter pane count, service scope, screens, tracks, story height, access difficulty, travel, crew labor, overhead, and target margin. Then compare the suggested quote to your minimum fee and production-hour floor.
Confirm that the pane count, add-ons, access conditions, crew time, and minimum fee match the real job. If any condition is uncertain, send a quote range with assumptions instead of a fixed number.
Use the same margin logic, but change the assumptions. Residential jobs usually need screens, tracks, interior access, and story height. Commercial jobs need route cadence, tenant access, crew efficiency, and recurring discounts.
Override the result when site photos are incomplete, the customer requests restoration work, access requires extra equipment, or the job would fall below your minimum fee or target crew revenue per hour.