Your windows are the first thing a customer, client or job candidate sees before they ever reach your front desk. Streaky glass, a film of city grime or water spots on a storefront send a message you never meant to send. So it makes sense to budget for professional cleaning. The harder part is knowing what to expect, because commercial window cleaning cost rarely comes down to one flat number.
Prices depend on how much glass you have, how hard it is to reach and how often you want it done. This guide breaks down the typical price ranges, the factors that move a quote up or down, and how to compare offers so you pay for clean glass, not surprises.
Typical price ranges for commercial windows
Most window cleaning companies in the US quote in one of four ways: per pane, per window, per square foot of glass or per hour. For standard commercial work, per-pane pricing commonly falls between about $4 and $8, and heavy jobs with mineral deposits can reach roughly $12 per pane. Per-window pricing usually lands somewhere between $10 and $18.
Crews that bill by the hour tend to charge between $50 and $100, depending on the size of the building and how often they visit. Larger buildings, especially those with curtain walls or several floors of glass, are often priced by the square foot instead, because counting individual panes no longer makes sense.
Keep in mind that these are national figures. In San Francisco, labor is one of the biggest pieces of any quote, and the city’s minimum wage rose to $19.61 an hour in July 2026. Local prices tend to sit toward the upper part of these ranges, so use them as a starting point rather than a final budget.
What drives the price up or down
Height and access
A ground-floor storefront that a technician can reach with a pole and squeegee is the simplest job there is. Second- and third-story glass needs ladders, extension systems or a lift, and that adds time, equipment and safety setup. Floor-to-ceiling panes and upper-story windows often carry a surcharge for the same reason. High-rise work with rope access or a suspended platform belongs to a different price category altogether.
Amount and type of glass
The more glass you have, the higher the total bill, although the price per window usually drops on larger jobs. The type of glass matters too. Glass entry doors, interior partitions, skylights, display cases and divided-light windows all take longer than a standard flat pane.
Inside, outside or both
Exterior glass collects most of the dirt, especially in a city with traffic, construction dust and salty, foggy air from the bay. Interior glass gets fingerprints and smudges instead. Cleaning both sides roughly doubles the work per window, so many businesses clean exteriors more often and handle interiors on a slower cycle.
Condition of the glass
A first visit after months of neglect takes longer than routine maintenance. Hard water stains, paint overspray, old adhesive from window decals and post-construction residue all need extra products and scraping tools. Add-ons such as screens, tracks, sills and blinds are usually priced separately, often a few dollars per window each.
Frequency and timing
Recurring service is almost always cheaper per visit than an occasional deep clean, because the glass never gets a chance to build up heavy grime. Timing matters as well. Retailers and clinics often need the work done before opening or after closing, so ask whether early or late scheduling changes the rate.
How often should a business clean its windows?
There is no single rule, but foot traffic and visibility are good guides. Retail storefronts and restaurants usually benefit from exterior cleaning every week or every two weeks, because the glass is part of the shopping experience. Offices in busy neighborhoods often do well with monthly exterior service and interior cleaning every quarter.
Medical and dental offices tend to fall somewhere in between. Patients judge the whole practice by what they see in the waiting room, and smudged glass at the entrance undermines that first impression. A predictable schedule also makes your budget easier to plan than reacting each time the windows look bad.
How to read and compare quotes
Two quotes can look very different simply because they cover different work. Before you compare prices, check that each proposal states the number of windows or panes, whether it includes the inside, the outside or both, and whether frames, sills and tracks are part of the job.
It should also explain how the crew will reach high glass and how often they will come. Ask what happens if you find streaks after a visit, and whether the company re-cleans at no charge. Finally, confirm that the company carries liability insurance and workers’ compensation. A cheap quote from an uninsured crew on a ladder outside your building is a risk you don’t want to take on.
Ways to keep your window cleaning budget under control
The most effective way to save is to stay on a regular schedule. Glass cleaned every month comes clean faster than glass cleaned twice a year, and the lower labor time shows up in the price. Bundling also helps. If the same provider handles your routine office or retail cleaning, interior glass doors and partitions can often be wiped as part of those visits, leaving the exterior and hard-to-reach glass for specialists.
Small details make a difference too. Clear access to windows, moving displays or furniture before the crew arrives and scheduling all your locations on the same day can shorten the job. Every hour saved on site is money saved on the invoice.
Get an accurate quote for your building
Online price ranges are useful for planning, but the only way to know your real cost is to have someone look at your glass, your access and your schedule. At Commercial Cleaning Pros, our hand-cleaned window service for offices and storefronts covers interior and exterior glass and can be scheduled around your business hours.
If you manage an office, shop or clinic in San Francisco, request a free, no-obligation estimate and we’ll give you a clear number based on your building, not a guess.