TL;DR
A squeegee wins on any pane larger than roughly two feet across, because it clears the whole surface in one continuous motion before the solution can dry. Cloths win on small panes, divided lights, mirrors, and interior glass. The streaks people blame on their cleaner are almost always drying time, not chemistry.
Why Do Windows Streak in the First Place?
Streaks form when cleaning solution dries unevenly on the glass before it is removed. A cloth removes solution in dozens of small passes, so the first area you wiped has been drying while you finish the rest. Whatever was dissolved in that solution stays behind as a visible line.
Two other causes are common. Too much product leaves residue that no amount of buffing removes, and a cloth carrying lint or fabric softener deposits its own film. Direct sun makes all three worse by shortening drying time to seconds, which is why professionals avoid glass in full sun.
What a Squeegee Does That a Cloth Cannot
A squeegee removes the entire film of solution in one continuous pass, so nothing has time to dry unevenly. That single property is why commercial window work uses squeegees almost exclusively and why the results look different from household cloth work.
The rubber blade also lifts the solution rather than absorbing it, meaning the soil dissolved in that solution leaves with it. A cloth absorbs and then redistributes a portion of what it picked up, which is a slow accumulation problem on a large pane. Detail on the method is in how to clean windows like a pro.
Where the Cloth Is Still the Better Tool
Small panes defeat a squeegee. Divided-light windows, small bathroom windows, and anything under about eighteen inches leave no room for a clean stroke, and the time spent detailing the edges exceeds the time a cloth would take on the whole pane.
Mirrors, interior glass, and glass-fronted cabinets are also cloth work in most homes. They carry light soil rather than a weathered film, so a lightly dampened flat-weave microfiber cloth followed by a dry buffing pass gives a clean result quickly. The technique matters more than the tool here, which is what streak-free window cleaning covers.
How to Squeegee a Window Correctly
Wash first with a strip washer or a sponge and a light solution, working the whole pane including the edges. The washing step is what loosens soil; the squeegee only removes liquid. Skipping or rushing the wash is the most common reason a squeegee still leaves marks.
Then pull in overlapping passes. Start at a top corner, pull horizontally across, and begin each following pass about an inch above the bottom of the previous one so you never leave an unwiped band. Wipe the blade with a dry cloth after every pass, because a wet blade redeposits a line. Finish by drying the perimeter with a dry microfiber cloth, since edges always hold liquid the blade cannot reach.
The Verdict: Let Pane Size Decide
Use a squeegee on panes larger than about two feet across. Sliding doors, picture windows, large sashes, and glass shower panels are all squeegee work. The larger the pane, the more decisively a squeegee wins, because a cloth cannot outrun the drying time on a big surface.
Use a cloth on small panes, divided lights, and interior glass. Anything under roughly eighteen inches, anything with muntins, and any mirror is faster and cleaner with a flat-weave microfiber cloth and a dry finishing pass.
Use both on a mixed home, which is most homes. Squeegee the large panes, cloth the small ones and the mirrors, and keep a dry cloth in hand throughout for edges and blade wiping. That combination is what professional residential work actually looks like.
Do not glass in direct sun. Whichever tool you choose, sun-heated glass dries the solution before you finish, and no technique corrects that. Work shaded sides first and follow the shade around the house.
Products and Cloths That Cause the Problem
Use less product than feels right. A dilute solution, sometimes little more than water with a small amount of dish soap, is what most professional work uses, because the goal is to carry soil away rather than to leave anything behind. Over-concentrated cleaner is the leading residue source.
Never wash microfiber glass cloths with fabric softener or dry them with dryer sheets, since the coating destroys their function permanently. Keep glass cloths separate from cotton laundry to avoid lint. Ammonia-containing glass cleaners belong nowhere near coated screens or displays, and alcohol is equally damaging to those panels. See what professional cleaners use.
When Neither Tool Fixes It
If the glass still looks cloudy after a correct wash and dry, the problem is usually mineral deposit rather than soil. Hard water spray from sprinklers, or repeated drying of hard water on a shower panel, leaves a bonded mineral film that a squeegee will not lift. Approaches are covered in removing hard water stains.
Permanent haze, scratches, and etched glass are a different category again. Etching is physical damage to the surface, often from long-term mineral bonding or abrasive cleaning, and it is a glass restoration or replacement question rather than a cleaning one. Exterior work at height is also a genuine safety limit, which is where professional window cleaning becomes the right call. Source: professional window cleaning trade practice guidance
FAQ
Is a squeegee better than a cloth for windows?
On large panes, clearly yes. A squeegee removes the whole film of solution in one continuous motion, so nothing dries unevenly. On small panes, divided lights, and mirrors a cloth is faster and just as clean, because there is not enough surface for the drying problem to appear.
Why do my windows streak even with a squeegee?
Usually a wet blade, insufficient overlap between passes, or a rushed washing step. Wipe the blade dry after every pass, overlap each stroke into the one before it, and make sure the wash step actually loosened the soil. Direct sun causes streaking regardless of technique.
What is the best solution for cleaning windows?
A very dilute one. Most professional glass work uses water with a small amount of dish soap or a dedicated low-residue glass cleaner. Over-concentrated product is the most common cause of film. Keep ammonia and alcohol away from coated screens and displays entirely.
How do you clean the edges of a window after squeegeeing?
Dry the perimeter with a clean dry microfiber cloth. The blade cannot reach fully into the corners and edges, so liquid collects there and dries into a visible border. A quick pass around the frame with a dry cloth is the standard finishing step.
Can you use paper towel on glass?
You can, but it usually leaves lint and needs more product than a cloth. A flat-weave microfiber glass cloth outperforms paper on both streaking and cost. If paper is what you have, use it dry as a finishing buff rather than as the main wiping tool.
Should I clean windows on a sunny day?
No. Sun-heated glass dries the solution before it can be removed, which guarantees streaks whatever tool you use. Work on overcast days, or follow the shade around the house and clean each side while it is out of direct sunlight.
For the whole-home version of this work, see house cleaning services.
Every home is different, so the real number depends on size, condition, and what you want covered. Get a quote and we will walk you through it.