How Much to Charge for Residential Window Cleaning

Per pane, converted to a flat price

Per-pane pricing is the honest unit of work, but almost nobody says “that’ll be $6.50 a pane” out loud. Quote a flat house price, built from per-pane math you keep to yourself:

• Exterior only: $4–$10 per pane
• Interior and exterior: $8–$15 per pane
• Typical average-size home, both sides: $150–$350 flat

The add-ons that aren’t in the base price

Four things regularly get missed in a base quote, and each one deserves its own line rather than being absorbed:

1. Screens. Removing, washing, and rehanging screens is its own step — quote it separately, especially on homes with a screen on every window.
2. Storm windows. Double the panes to clean in the same frame opening.
3. Hard water or mineral deposits. These need a different chemical process and real extra time — don’t price a stained window like a dusty one.
4. Second story or hard-to-reach windows. Ladder work is slower and riskier than ground-floor work, and the price should say so.

Interior work is a different job, not an upsell

Interior windows take meaningfully longer than exterior — moving furniture, working around blinds, and a slower, quieter pace inside someone’s home. Pricing it as “add $2 a window” instead of the real 60–100% premium is the single most common way solo window cleaners undercharge themselves.

Write it on the invoice the same way

Whatever mix of exterior, interior, screens, and second-story work you did, list it that way on the invoice. A customer who sees “screens: $25” understands exactly what that line covered — a single “windows: $275” invites a phone call next time they compare it to a neighbor’s quote.