How much does window cleaning cost?

The core of most quotes is a unit count. Per-pane pricing counts each sheet of glass — so a colonial-grid window with many small panes costs more than a single-pane picture window of the same size. Per-window pricing charges by the opening regardless of grid, which is simpler but assumes typical window styles. Neither is better; they're just different ways of measuring the same labor.

This is why you should never compare two window quotes by the unit price alone. One cleaner's "window" may be another's four "panes." Ask each bidder for the total price for your specific window list, counted their way, and compare totals.

Exterior-only service is the most common request and usually the baseline price. Adding interior glass roughly doubles the labor — every window is cleaned twice — but often costs a bit less than double because the crew is already on site. Interior work also moves slower for reasons that have nothing to do with glass: furniture to shift, blinds to raise, sills to protect, and floors to keep dry.

Some house cleaners include interior glass in a deep clean but not exterior work at height. If you want true both-sides results, a dedicated window cleaning visit is usually the cleaner path.

A frequency framework that keeps costs sensible: book both sides once or twice a year, and add exterior-only visits in between if your environment is dirty — pollen seasons, a dusty road, sprinklers hitting the glass. Exterior grime accumulates several times faster than interior film, so alternating full service with exterior-only touch-ups buys most of the appearance at a fraction of the annual cost.

A ground-floor window and a third-story window are different jobs. Anything beyond a first floor typically adds a per-window or per-story premium.

• Second and third stories — ladder work is slower and riskier, and water-fed pole work needs the right equipment.
• Steep landscaping or decks below windows — awkward ladder placement adds time.
• Windows that don't open or tilt in — interior-access designs are cheap to clean from inside, fixed high glass is not.
• Skylights and glass above stairwells — specialty access, often quoted individually.
• Hard water stains or paint overspray — restoration work on glass is priced separately from routine cleaning.

Clean glass behind a dirty screen looks dirty, so most cleaners offer screen washing as an add-on — removal, wash, dry, and reinstall for each screen. Track and sill detailing is the other common extra: vacuuming and wiping the channels where grime, dead bugs, and mildew collect. Both are slow, fiddly work, which is why they're priced separately, and both are worth it if it's been years since they were done.

When comparing quotes, note which bids include screens and tracks. A higher bid that includes them frequently beats a lower glass-only bid once you add the extras.

Ground-floor exterior glass and any interior glass you can reach from the floor are reasonable DIY jobs: a squeegee, a bucket with a drop of dish soap, and a lint-free cloth outperform spray-and-paper-towel methods and cost almost nothing. Working on a stable step stool indoors is fine; clearing sills and laying a towel protects floors and finishes.

The line is height and restoration. Second-story ladder work is genuinely dangerous for amateurs — falls from ladders are among the most common serious home-maintenance injuries — and a wobbling reach with a squeegee produces streaks anyway. Hard water etching, paint overspray, and construction stickers are also pro territory: razors and polishing compounds in inexperienced hands scratch glass permanently, and a scratched pane costs far more than any cleaning visit. A sensible split many homeowners land on: DIY the ground floor between visits, and hire out the full house once or twice a year.

The common lowball in window cleaning is a unit price that quietly excludes half the job: exterior only when you asked for both sides, screens and tracks unmentioned, upper floors "to be assessed on the day." Before accepting any bid, confirm the total is for your written window list, both sides if that's what you want, with screens and tracks explicitly in or out. Also ask how upper-story glass will be reached — ladder, water-fed pole, or "we'll see" — and whether the business carries insurance for work at height, which is not a formality when someone is on a ladder over your patio.

Paying more is rational for height, for restoration work, and for carefulness around fragile things: old screens that tear, painted-shut sashes, leaded or specialty glass. An experienced crew that removes and reinstalls screens without bending frames, and knows when a razor is safe on glass and when it isn't, prevents the small damages that quietly erase the savings of a cheap bid.

As broad national framing, whole-home window cleaning for an average house usually lands in the low-to-mid hundreds of dollars, scaling with window count, stories, and whether interiors are included. Ranges vary widely by region and provider — the only reliable number is a quote for your exact home and ZIP code.

To get comparable bids, count your windows by floor, note which have screens, and send the same list to two or three cleaners. On HouseGlow, you can find businesses offering window cleaning in your exact ZIP code and request quotes without guessing who actually covers your street.