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Top 5 Mistakes People Make When Cleaning Windows and How to Avoid Them

February 20, 2025

Cleaning windows seems straightforward, but it’s easy to make window cleaning mistakes that leave behind streaks, smudges, or even damage. We’ve seen it all—people using the wrong tools, cleaning at the wrong time of day, or applying too much pressure on the glass. These small missteps can make the job harder and lead to disappointing results.


If you want to know how to clean windows properly, this guide will help. We’ll break down the most common window cleaning errors and show you how to avoid them. By following these tips, you’ll achieve a streak-free shine without the frustration.

1. Using the Wrong Cleaning Solution

Not all cleaning solutions are created equal. Many people grab whatever glass cleaner they have on hand, assuming it will do the job. However, some products contain harsh chemicals that can leave streaks or damage window frames. Others don’t have the power to cut through dirt and grime effectively.


How to Avoid This Mistake:

Use a high-quality, ammonia-free glass cleaner or make a simple solution with vinegar and water.

Avoid using products with strong fragrances or dyes, as they can leave behind residue.

If dealing with tough grime, mix warm water with a small amount of dish soap for better results.

2. Cleaning Windows on a Sunny Day

It might seem like a bright, sunny day is the perfect time for window cleaning, but it can actually make things worse. The sun causes cleaning solutions to dry too quickly, leading to streaks and water spots before you can wipe them away.


How to Avoid This Mistake:

Clean windows on a cloudy day or when the sun isn’t directly hitting them.

Work in small sections to prevent the cleaner from drying too fast.

If the sun is unavoidable, use a damp microfiber cloth instead of spraying cleaner directly on the glass.

3. Using Paper Towels Instead of Microfiber Cloths

Paper towels are one of the most common window cleaning errors we see. While they might seem convenient, they leave behind lint and streaks. Worse, they can break apart, leaving small fibers on the glass.


How to Avoid This Mistake:

Use a microfiber cloth or a squeegee for the best results.

If you don’t have microfiber, a clean cotton cloth or newspaper can also work well.

Change cloths frequently to avoid spreading dirt around.

4. Neglecting the Window Frames and Tracks

Many people focus only on the glass and forget about the window frames and tracks. Over time, dirt and dust build up in these areas, leading to mold, unpleasant odors, or even window damage.


How to Avoid This Mistake:

Start by vacuuming or wiping down the window tracks before cleaning the glass.

Use a small brush or an old toothbrush to remove debris from hard-to-reach spots.

Don’t forget to clean the window sills and surrounding areas to prevent buildup

5. Not Drying Windows Properly

Even if you use the right cleaner and tools, improper drying can still leave streaks or water spots. Many people let windows air dry, but this often results in unsightly marks.


How to Avoid This Mistake:

Always dry windows with a clean microfiber cloth, squeegee, or chamois.

Wipe in a consistent motion (horizontal or vertical) to prevent streaks.

If using a squeegee, wipe the blade between each stroke to avoid leaving excess water behind.

Bonus Tips for How to Clean Windows Properly

Now that you know the top window cleaning mistakes, here are a few extra tips to help you get the best results:


  • Start from the top – Cleaning from the top down prevents drips from ruining already-cleaned areas.
  • Use two buckets – One for clean water and another for rinsing your cloth or squeegee.
  • Don’t forget the outside – Outdoor windows collect more dirt, so they may need extra cleaning.
  • Avoid excess pressure – Pressing too hard on the glass can cause streaks or even damage

Achieve Streak-Free Windows Every Time

Avoiding these common window cleaning errors will save time, effort, and frustration. By choosing the right cleaning solution, using proper tools, and following the right techniques, you’ll get sparkling clean windows without the hassle.


At MT Cleaning, we understand that keeping windows spotless takes time and effort. If you need professional help, we’re here to make the job easier. Contact us today at 406-812-0327 to schedule a cleaning. Let’s make your windows shine!

Frequently Asked Questions

  • 1. What are the most common window cleaning mistakes people make?

    Many people make common window cleaning errors such as using the wrong cleaning solution, cleaning on a sunny day, or wiping with paper towels that leave streaks. Not drying windows properly and neglecting the window tracks can also result in poor results.

  • 2. How can I clean windows properly without leaving streaks?

    To learn how to clean windows properly, use a high-quality glass cleaner or a vinegar-water solution. Clean windows on a cloudy day, use microfiber cloths or a squeegee, and always dry the glass in a consistent direction to prevent streaks.


  • 3. Why should I avoid cleaning windows in direct sunlight?

    One of the most overlooked window cleaning mistakes is cleaning in direct sunlight. The heat causes the cleaning solution to dry too quickly, leaving streaks and water spots behind. It’s best to clean windows on a cloudy day or when the sun isn’t directly hitting them.

  • 4. What tools should I use to avoid common window cleaning errors?

    To avoid common window cleaning errors, use microfiber cloths, a high-quality squeegee, and a non-abrasive cleaning solution. Avoid paper towels and newspapers, as they can leave lint and streaks on the glass.


  • 5. How often should I clean my windows for the best results?

    To maintain clean and streak-free windows, aim to clean them at least once every three months. However, if you live in an area with heavy dust, pollen, or rain, you may need to clean them more frequently to avoid window cleaning mistakes like buildup and residue.

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