Stop eyeballing a round number — price per window or pane, add height, access, screens, tracks & drive time
Market 2025–2026: ~$10–$15/window or ~$4–$8/pane, both sides. Per-pane is fairer on grid/colonial/French glass. Sides: Both = full rate, Exterior-only ≈ 65%, Interior-only ≈ 35%.
"Stories above ground" is 0 for a single-story home, 1 for the upper floor of a typical 2-story. Industry norm: $3–$5/window/story. Hard-access (ladders, lifts, harnesses) is a separate $2–$4/window so it isn't double-counted with story height.
Screens ~$0.50–$8 each; track/sill detailing ~$1–$4 per window. Both are priced separately so partial-scope jobs stay accurate.
The minimum is a floor on the whole subtotal (including drive time & add-ons), not a stack-on. Discount is applied after the minimum so it can't drop a job below break-even. Tax is applied last for an out-the-door figure.
Most window cleaners quote off gut feel — they eyeball a round number and miss money on big jobs while underpricing small ones below their true minimum. This calculator builds the quote the way a pro estimator does: count the windows (or panes), apply your per-window or per-pane rate adjusted for which sides you're cleaning, then layer on a story-height surcharge for upper floors, a separate hard-access surcharge for above-20ft work, and per-item add-ons for screens and track/sill detailing. It adds a drive-time charge for round-trip travel, raises the whole subtotal to your minimum job charge if it falls short, then applies any discount and tax last. You get an itemized quote, the out-the-door total, and your implied effective price per window so you can sanity-check it against the market. Everything runs privately in your browser, free.
A 12-window home, priced per window at $12 both sides, with 1 story above ground at a $4/window/story height surcharge, no hard access, 0 screens, 0 tracks, 0 drive time, a $150 minimum, no discount, no tax:
Eyeballing "around $150" would have left $42 (22%) on the table — the exact gap this tool recovers. Drop the windows to 4 and the raw work falls to $64, but the minimum floors it at $150 so you don't lose money showing up.
sidesFactor = Both 1.00 | Exterior 0.65 | Interior 0.35
baseGlass = (per window) windows × pricePerWindow × sidesFactor
= (per pane) windows × panesPerWindow × pricePerPane × sidesFactor
heightAdd = windows × storiesAboveGround × storySurcharge
hardAccessAdd = (above 20 ft?) windows × hardAccessRate : 0
addOns = screens × screenRate + tracks × trackRate
driveCharge = (driveMinutes ÷ 60) × driveRate
subtotal = baseGlass + heightAdd + hardAccessAdd + addOns + driveCharge
afterMinimum = max(subtotal, minimumJobCharge) ← floor, not a stack-on
afterDiscount = afterMinimum × (1 − discount% / 100)
total = afterDiscount × (1 + tax% / 100)The minimum is applied to the whole subtotal (including drive time and add-ons), and the discount comes after the minimum — both on purpose, so small jobs still cover trip + labor and a promo can't quietly drop a job below break-even.
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<p>Free <a href="https://snaptoolsuite.com/window-cleaning-pricing-calculator/">Window Cleaning Pricing Calculator</a> by Snap Tool Suite</p>See it live: view a real embed example →
Count the windows (or panes for grid/colonial glass), multiply by your per-window or per-pane rate, then layer on a story-height surcharge for upper floors, a hard-access surcharge for above-20ft work, and per-item add-ons for screens and track/sill detailing. Add a drive-time charge, raise the subtotal to your minimum if it falls short, then apply discount and tax last. This tool does every step and shows the itemized quote plus your implied hourly rate.
Per-window (~$10–$15, both sides) is simpler for standard glass. Per-pane (~$4–$8) is fairer on multi-pane colonial, grid or French windows where one window holds 6–12 panes. Pricing a grid window per window leaves money on the table — toggle the basis so multi-pane jobs are priced right.
The industry standard is an extra $3–$5 per window for each floor above ground. Windows above ~20 ft that need multi-stage ladders, harnesses or a lift warrant a separate $2–$4/window hard-access surcharge on top. Keeping the two separate avoids double-counting access cost on an easily-reached upper window.
A minimum (commonly $100–$250, $125–$175 typical) stops you quoting a four-window job at $48 and losing money once drive time and setup are counted. It should be a floor on the whole subtotal — including drive time and add-ons — not a stack-on. The tool applies it that way and badges when it binds.
Unpaid travel erodes margin on far jobs, so recovering it fixes the "eyeball a round number" problem. Multiply round-trip minutes by your drive-time rate (often $40–$60/hr). On competitive bids many cleaners fold this silently into the minimum or per-window rate — the tool itemizes it so you see the true cost.
Exterior is the bulk of the labor (~2× interior), so the tool models exterior-only at ~65% and interior-only at ~35% of the both-sides rate. These side factors are an adjustable convention from published cost splits, not a fixed constant.
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