Window Cleaning Cost Per Window: What the Per-Window Model Actually Means

How Per-Window Pricing Works — and Where It Gets Complicated

Per-window pricing charges a set rate for each window cleaned, usually differentiated by side (interior vs exterior) and sometimes by height or size. On the surface, it's simple: count your windows, multiply by the rate, get a price. The complication starts with definitions. As covered in our guide to window counts, a 'window' can mean a pane, a unit, or an opening — and the distinction matters. A double-hung window (two sashes) that a company counts as two panes at $8 each costs $16. Another company might quote that same window as one unit at $15. Neither is wrong — they're using different definitions. But a homeowner comparing those quotes assuming the same unit is being priced will misjudge the comparison. Per-window pricing also tends to get more complex with every variation: large windows, specialty shapes, windows above a certain height, sliding glass doors (one unit or three panes?), skylights. Each variation is typically a pricing tier or a surcharge, and the additions accumulate. A quote that starts at $8 per window for a standard single-hung can look very different by the time it's applied to a home with large picture windows, a few dormer windows in the roof, and a glass wall in the dining room.

What Per-Window Prices Look Like in Practice

In the BC residential market, per-window rates for exterior cleaning typically run: $6–$10 per window for standard-sized windows, exterior only, ground or first floor. $10–$15 for second storey. $15–$20+ for large picture windows or windows requiring special equipment. Interior adds roughly the same amount again per window as exterior. Applying those rates to a medium Salmon Arm home with 28 panes (exterior only, mix of storeys and sizes), you'd likely land in the $200–$280 range before any extras. That's comparable to flat-rate pricing for the same home — which is part of the point: for a standard home, well-priced per-window and flat-rate quotes converge on similar totals. The divergence happens at the extremes. A home with many small, simple, accessible windows — think a compact single-storey with standard double-hung windows — costs noticeably more under per-window pricing than a well-priced flat rate. A home with fewer but very large, complex, or high windows may cost more under a flat rate (if the flat rate is set by home size and doesn't account for window complexity) than under a time-honest per-window quote.

• Standard exterior, ground level: $6–$10 per window
• Second-storey exterior: $10–$15 per window
• Large picture windows: $15–$20+ per window
• Interior typically matches or slightly exceeds exterior per-window rate

Add-On Costs That Apply Regardless of Pricing Model

Whether a company quotes per window or by flat rate, certain services are almost always priced separately because they represent genuinely separate scope. Screen cleaning is the most common add-on. In the Shuswap, screens clog with cottonwood pollen, insect debris, and fine organic matter through the spring and summer. Cleaning them properly requires removing each screen, washing the mesh and frame, and reinstalling. Wagon Windows charges $4 per screen. Most companies in BC run $3–6 per screen depending on size. Track cleaning is another separate service. Window tracks — the channel in the frame where the sash slides — accumulate dead insects, dirt, and moisture that standard window cleaning doesn't address. Track cleaning involves brushing and vacuuming the tracks and wiping them down, which takes additional time. It's worth doing when tracks are visibly dirty or when windows are sticking. Hard water stain removal is always a separate line item because the severity varies enormously. A light haze from a single summer's mineral exposure is a 20-minute treatment on a standard window. Years of accumulated lake spray on 15 windows facing Shuswap Lake is a multi-hour job requiring multiple treatment passes. Lumping this into a per-window rate would either overcharge clean windows or underprice badly stained ones.

• Screen cleaning: $3–6 per screen (Wagon Windows: $4)
• Track cleaning: typically quoted as an add-on
• Hard water stain removal: custom quote based on severity and count

Flat Rate vs Per Window: Which Is Better for Shuswap Homeowners

For most Shuswap residential properties, flat-rate pricing by home size produces more predictable costs and fewer invoice surprises. You know the number before anyone shows up, and it doesn't change because the professional counts your panes differently than you did. Per-window pricing works best when the home has an unusual configuration where complexity falls outside the normal range for its size — either very simple (few, small, accessible windows in a large house) or very complex (many specialty windows in a small footprint). In those cases, per-window pricing more accurately reflects actual time on-site. Wagon Windows uses flat-rate pricing tied to home size, with explicit separate pricing for screens, gutters, and hard water treatment. This model is transparent because the add-on prices are published and the base rate doesn't shift based on how panes are counted on the day. When comparing quotes from multiple companies, the most useful exercise is to ask each company: what does this price include, what does it exclude, and what would change the price after you arrive? That question exposes the actual scope of each quote far better than comparing the headline number.