How to Clean Windows and Banish Smudges for Good in Just 3 Steps
Illustration: Ellie Schiltz/Getty Images
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How to Clean Windows and Banish Smudges for Good in Just 3 Steps

Want to see clearly, even on a cloudy day? Window washing hacks and cleaning tools you need to try ASAP

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Access to natural light can make or break a space. But a room with southern-facing gems won’t shine if you don’t know how to clean windows properly. Not only will your space look better with sunlight streaming in, research suggests that sunny rays positively influence your health and happiness. Alternatively, grime, buildup, and otherwise dirty windows are a buzzkill when you’re trying to bask in that afternoon glow.

Perhaps your cleaning energy is taken up by running the dishwasher, dusting, vacuuming, and mopping floors, but that doesn’t mean you should neglect the smudges on glass windows. Thankfully streak-free panes are part of the spring cleaning routine and you won’t have to live with dust, grime, and buildup much longer. Below are simple cleaning tips so you can clean your windows like a pro.

What is the best thing to clean windows with?

No matter what type or how many windows your home has, your arsenal of window cleaning products will be pretty similar. “Grab a soft towel or microfiber cloth, a vinegar-based glass cleaner, and a small squeegee if you prefer, and you are ready to go,” says Kathy Cohoon, operations manager at Two Maids. Here, three cleaning products that tackle dirty windows.

1. A DIY white vinegar window cleaning solution

If you’re all about the DIY life, we’ve got just the thing for you. Combine two parts water with one part white vinegar in a spray bottle and you’ll be all set with a homemade window cleaner. You can also combine warm water with a few drops of dishwashing soap if you prefer. Invest in a glass spray bottle to mix up your formula.

Chef's Star Glass Spray Bottles for Cleaning Solutions

2. A store-bought cleaner

If you’d rather go the store-bought route, there are plenty of commercial window cleaning solutions or sprays, like Windex, on the market, and many will work really well for your window washing. Cohoon recommends a vinegar-based cleanser, which won’t damage hardware or stain curtain or drapes. Likewise, if you’re going the store-bought route, try to avoid glass cleaners that are ammonia or is alcohol-based, as these may leave streaks or light films that attract more dust down the road. Eco-friendly and plant-based glass cleaners like Safely tackle smudges and leave the surface streak-free. Bonus: The floral scent will linger for hours, leaving your room smelling like a bouquet.

Safely Glass Cleaner, 28 Fl Oz

3. Wiping supplies

Whether you’re going the DIY or store-bought route for the cleaning solution, the best way to wipe down your windows is with a clean microfiber cloth. This is key for streak-free windows. Squeegees can also work well if you’re putting lots of water on the windows—just avoid paper towels as they can leave lint films all over the glass windows. For outside windows, grab a broom just in case there are any cobwebs or sticks on the window frame that may need to be knocked down.

Unger Professional 14" Window Cleaning Tool: 2-in-1 Microfiber Scrubber and Squeegee

Another simple trick: It’s never a bad idea to place a bath or beach towel underneath the window before getting started. This will catch any excess water, drips, or spills and keep you from making another mess while you try to clean.

How to Clean Windows in 3 Easy Steps

Step 1: Wipe away dust

Once you’ve got the cleaning tools, prep the window frame before you get started on the actual cleaning. “If you notice excess pet hair, dust, or build up, dry dust windows gently with a feather duster to remove build up without scratching the glass,” Cohoon says. It’s good to have a surface free of debris and particles before you go in with a wet product, much like you would prep the floor surface before you mop. Also, don’t forget to dust the windowsill, especially if you see some small cobwebs in the corners of the window frame.

Step 2: Spray the glass window with a DIY or store-bought

It may be tempting to spritz the glass cleaners all over the place, but you don’t want to apply too much. Start at the top of the dirty window, spray once or twice to start, then take the microfiber cleaning cloth and wipe in Z-shaped motions to dry. Work your way down to the windowsill.

You can also skip the spray bottle altogether and use a plastic bucket with warm water and a few drops of Dawn dish soap (or the white vinegar solution) and wipe up soapy water with long, even swirls starting from top to bottom. “If you have larger windows, you can also use a squeegee,” Cohoon says. “Spray cleaner across the window surface and squeegee dry, wipe down the squeegee in between swipes.” Make sure you have plenty of absorbent microfiber cloths on hand to prevent water spots.

Depending on whether your windows get frequent TLC or only see cleaning products during your annual spring cleaning shenanigans, you may need to go over the pane a few times before you’re looking at the best window it can be. Take your time and enjoy the meditative motions of a the squeegee blade.

Step 3: Clean exterior windows 

It makes sense that with snow, rain, and wind-blown dirt, exterior windows have more grime than the panes inside your house. To clean outside windows in the best way possible, you need to do some prep. Take out the window screens, and wash them separately. You can use a solution of dish soap and hot water, then scrub gently with a sponge. Hose down with clean water.

Then use a hose to get rid stains and debris. You may have to use a ladder to reach windows on the second level. If you don’t feel confident on a ladder with a spray bottle in hand, call a professional. Clean windows with a white vinegar or soap solution, as you would on the inside. Dry the window with a squeegee, moving from the top of the window with the squeegee blade angled toward the bottom. Reinstall the window screens.

Frequently asked window-cleaning questions

What should you not do to clean windows?

According to Cohoon, one of the worst mistakes you can make when washing windows is to use an all-purpose cleaner. “It can leave streaks or damage the window sill and hardware over time,” she explains. It’s also not recommended to leave dust or buildup on a window before cleaning, as these small particles can scratch the glass. 

Can you steam clean windows?

According to Sébastien Dupéré, president and cofounder of Dupray, you can steam clean windows. This might be especially useful if you don’t want to use any product on your windows aside from water. “Steam cleaning is a great way to get streak-free results when cleaning windows,” he says. “ Just release the steam and use sweeping movements across the window to get a truly deep clean, then finish with a microfiber cloth to wipe away any excess moisture.” 

What is the best way to clean windows without streaking?

“To avoid noticeable streaks, wipe in horizontal and vertical motions, not circles,” advises Cohoon. “If any streaks remain, use a cloth dampened with water to wipe them away.”

How often should you clean your windows? ​

While it can depend on many factors—like if you’re a smoker or have pets or kids—you should aim to clean your windows biweekly. “If you live in an older home prone to dust, have construction going on, or live with multiple kids, pets, or a smoker, be sure to clean more regularly to keep build up, streaks, and dust at bay,” says Cohoon. 

How do you clean high-rise windows? 

Don’t think that just because you live in an apartment or other building with high-rise windows you can’t have glistening windows like everyone else. Start by seeing if you can remove your panes from their frames. If so, then all you need to do is pop them out, line them up, and scrub them down.

It can be an acrobatic feat to clean windows that can’t be moved, and no one is asking for you to scale a building so that yours can gleam. Instead of stretching your arms to wipe down tilted windows, opt for a gliding cleaner to remove dirt with ease. A strong magnet keeps the outer piece in place as you move it across the pane, making for an almost effortless process. Just make sure you buy the right one for the thickness of your windows.