Hiring someone to clean your windows sounds simple—until you realize the price difference between a two-story house and a 10-story office tower is massive. Whether you're a homeowner wanting streak-free glass or a facility manager budgeting for quarterly maintenance, knowing the real numbers helps you avoid overpaying or getting lowballed work.
What Drives Window Cleaning Prices
Before comparing residential vs. commercial, it helps to understand the factors that move the needle on every quote:
- Number of panes and stories – More windows and greater height mean more time, equipment, and risk.
- Interior vs. exterior only – Cleaning both sides typically adds 40–60% to the price.
- Window type and condition – French panes, grids, and storm windows take longer. Heavy mineral deposits or construction debris cost extra.
- Access difficulty – Skylights, arched windows, and windows behind landscaping require special ladders or lifts.
- Frequency – One-time cleans cost more per visit than monthly or quarterly contracts.
Residential Window Cleaning Costs
For a standard single-family home, expect to pay $150–$350 for a one-time exterior-only clean. Adding interiors pushes most jobs to $250–$500. Here's a rough breakdown by home size:
| Home Size | Exterior Only | Interior + Exterior | |---|---|---| | Small (up to 10 windows) | $100–$175 | $175–$275 | | Medium (11–20 windows) | $175–$300 | $275–$450 | | Large (21+ windows) | $300–$500+ | $450–$800+ |
Multi-story homes add a premium. Expect to pay $5–$15 extra per window on a second story, and $10–$25 extra per window on a third story due to ladder work or water-fed pole systems.
Specialty add-ons like screen cleaning ($3–$5 each), track cleaning ($2–$4 per track), or hard water stain removal ($50–$150 extra) are usually quoted separately.
Commercial Window Cleaning Costs
Commercial pricing shifts from per-window to per-pane or per-square-foot, and the variables multiply fast.
Low-rise commercial buildings (1–3 stories, like retail storefronts or small offices) typically run $0.50–$2.00 per pane for exterior-only work. A strip mall storefront with 20 large panes might cost $75–$200 per visit.
Mid-rise buildings (4–10 stories) require bosun's chairs, scaffolding, or aerial lifts. Pricing jumps to $2–$6 per pane, and a quarterly contract for a modest office building can run $500–$2,500 per visit.
High-rise buildings (10+ stories) move into specialized rope access or platform work, where annual contracts often run $10,000–$50,000+ depending on facade complexity and frequency.
Key cost drivers unique to commercial:
- OSHA compliance and insurance requirements – Reputable commercial cleaners carry higher-limit liability and workers' comp, which is baked into the price.
- After-hours scheduling – Retail and hospitality clients often require overnight or early-morning work, which carries a 15–25% surcharge.
- Contract length – Locking in a 12-month agreement typically saves 10–20% versus one-off calls.
- Specialty glass coatings – Low-E or tinted glass may require specific cleaning solutions to avoid damage.
Residential vs. Commercial: Side-by-Side
| Factor | Residential | Commercial | |---|---|---| | Typical price range | $150–$800 | $75–$50,000+ | | Pricing method | Per window or flat rate | Per pane, sq ft, or contract | | Equipment needed | Ladders, squeegees, poles | Lifts, rope access, platforms | | Frequency | 1–4x per year | Monthly to quarterly | | Insurance required | Basic liability | High-limit commercial coverage |
How to Get an Accurate Quote
Don't rely on phone estimates. A professional should either visit the property or ask for specific information:
- Count your windows and panes – Know the difference. One large casement = 1 window, but 6 panes of glass.
- Identify problem areas – Hard water stains, paint overspray, or screens needing replacement change the scope.
- Clarify what's included – Ask whether the quote covers interior and exterior, screens, and tracks.
- Ask about their equipment – A company using water-fed poles can clean faster and safer than one relying solely on ladders.
- Request proof of insurance – Especially for commercial work or anything above ground level.
Platforms like Mercoly make it easy to compare vetted window cleaning providers side by side, so you can match price, reviews, and service scope without chasing down multiple quotes.
The Bottom Line
Residential jobs are fairly predictable once you know your window count and stories. Commercial jobs require more legwork, but the savings from a well-negotiated contract can be significant. Either way, the cheapest quote rarely wins in the long run—streaks, missed panes, and uninsured workers cost more than the discount.
Start comparing window cleaning quotes today and find the right pro for your property before the next rainy season hits.