How to Remove Water Spots from Windows: The [Stubborn] Spots’ Removal

Window cleaning is a chore that most of us would like to avoid. But when you have water spots on your window glasses, it becomes an even bigger headache.

Removing these spots can be difficult, but you can get the job done with the right tools and techniques. This article will show you how to remove water spots from windows using three methods: a vinegar and water solution, a car windshield cleaner, and a commercial window cleaner.

 Water spots are annoying, but they're not dangerous. If you follow these steps, you'll be able to get rid of them quickly.

What are water spots?

Water spots are what you get when hard water dries on glass. They're usually dusty and have a film or pattern of whitish circles.

Minerals in the hard water cause water spots. The minerals are left behind when the water evaporates and create those spots.

They can be a common problem on windshields, glass shower doors, glass patio tables, household windows, and commercial storefronts.

Removing them is easy; you only need patience and a few supplies. But it's important to identify what's causing them before trying to remove them so you can use the right method.

There are different ways to deal with water spots depending on the cause, but most involve some cleaning or scrubbing action.

What causes water spots?

Water spots form when the water leaves behind minerals on a surface. This can be due to leaking gutters, sprinklers, rain from the roof, or any other water source. If you can identify and address the underlying problem, you may be able to stop water spots from forming in the first place.

There are several ways to prevent water spots: you can apply a glass sealant, carnauba paste wax, or rain repellent product to your windows. However, if water spots have already formed, it is usually difficult to remove them with regular cleaning.

How can I prevent water spots from forming?

If you want to avoid getting water spots on your windows, you can do a couple of things. First, make sure that your home has good drainage. You should also check for leaks around faucets, pipes, and drains. Fixing these problems will help prevent water spots from forming.

You can also install a window washer system that uses a high-pressure spray to wash away dirt and debris. Professionals typically install these systems, but they're relatively inexpensive.

How to remove water spots from glass surfaces?

Once you've identified the cause of the water spot, you'll need to decide which method to use to remove it. There are two main methods: chemical removal and physical removal.

Chemical removal involves applying a solution to the stain and then waiting for the stain to dissolve. It works well for removing mildew stains like coffee rings or tea rings.

Physical removal involves rubbing the stain until it disappears. It's best used for more stubborn stains like grease or oil.

The following sections show you how to remove water spots chemically and physically.

Remove water spots chemically

This section will discuss three solutions: ammonia, bleach, and vinegar.


Ammonia is an alkaline cleaner that dissolves mineral deposits. It's commonly found at hardware stores and grocery stores. Ammonia is safe for all kinds of materials, including wood, plastics, fabrics, leather, and even food products.

To use ammonia as a water spot remover, follow these steps:

1. Clean the area where the water spot appears.

2. Apply the ammonia directly to the spot using a cotton swab.

3. Wait about 15 minutes for the ammonia to work its magic.

4. Rinse the area thoroughly.



Bleach is another common household cleaner. Bleach is made up of sodium hypochlorite (NaOCl), which is a powerful oxidizing agent. Applying to a surface removes stains, grime, and bacteria.

To use bleach as a water spot remover, follow these steps:

1. Clean the area where the water spot appears.

2. Mix one part bleach with nine parts water.

3. Use a clean cloth to rub the mixture onto the stained area.

4. Let the mixture sit for 10 minutes before rinsing off.

5. Repeat Steps 1 through 4 until the water spot is gone.

6. Rinse the area again.

7. Dry the area.

Using Vinegar


Vinegar is acidic, so it can be used to remove water spots. To use vinegar solution as a water spot removal, follow these steps:

Clean the area where the stain appears.

Pour one cup of white distilled vinegar into a bowl.

Dip a clean rag in the vinegar and wipe the stained area.

Let the vinegar soak for 30 seconds.

Wipe the area dry.

Repeat Steps 1 through 3 until the water spot is removed.

How do I remove light water spots?

Light water spots are easier to remove than dark ones because they don't contain many colors. To remove them, you just need to clean the area thoroughly. Then, use soap and warm water to wipe off the spots.

You'll need to use a more robust cleaner to remove darker water stains. For example, you could try mixing vinegar and baking soda. Mix equal parts of each ingredient together and add enough water to make a thick paste. Apply this mixture to the stained area and let sit for 10 minutes. Then rinse the area with clear water.

How do I remove heavy or dried-on water spots?

Dried-on water spots are hard to get rid of without damaging the surface of the glass, so you might need to replace the entire window.

However, if you can find a way to remove the water spots without causing too much damage, you can save yourself some money.

First, try soaking the affected areas in hot water. Once the water evaporates, you can continue to soak the area for about 30 seconds at a time. This process may take up to 20 minutes.

Afterward, you can use a damp cloth to dry the area. If you still notice water spots after drying, repeat the process.

How do I prevent water spots from reappearing?

Water spots often reappear when you clean the glass. To keep them from happening again, follow these steps:

Wash your hands before cleaning the glass.

Clean the glass immediately after washing your hands.

Make sure the glass is completely dry before storing it.

WD-40: A Household Name for Mirror Cleaning and Water Spot Removal

WD-40 is one of those household names that everyone knows about. If you've ever cleaned anything with WD-40, you know what it does. But did you know that this product has many different uses?

WD-40 has been used for hundreds of years in China to keep things shiny. Today, WD-40 is still known for making everything shine like new.

But WD-40 isn't just useful for keeping surfaces shiny. For example, many people use WD-40 to remove water spots from glasses and mirrors.

This is because WD-40 reacts with the minerals in water to loosen their bonds and make them easier to wash away. So whether you're looking to give your car a thorough scrubbing or want to remove water spots from your favorite pair of eyeglasses, WD-40 is a perfect choice.

Simple Tricks to Remove Water Spots from Glass with WD-40

Watermarks on mirrors are an annoyance most of us have encountered multiple times. They are usually caused due to improper cleaning or the application of chemicals.

In case you don't want to clean the stains off manually, various tools and products are available to make the process much easier. Here we list some simple tricks to remove water spots from glass with WD-40.

1. Use WD-40 on the surface of the watermark to loosen up the dirt particles.

2. Then, use a soft cloth to wipe away the dirt.

3. Repeat step 2 till the watermark disappears.

4. Now apply WD-40 again and repeat steps 2 to 4.

5. Finally, polish the surface with a dry cloth.

6. You're done. Your glass is now free from water spots.

Abrasive Glass Cleaners for Hard Water Spots

Hard water spots can make even the most beautiful surfaces look dull, whether it's a stubborn coffee stain or a smudged windowpane. Fortunately, abrasive glass cleaners can help clean those unsightly marks without scratching the surface. These products work well on smooth, textured glass surfaces, including mirrors, windows, shower doors, and countertops.

There are many abrasive glass cleaners, each with varying strengths and uses. Some come in liquid form, while others are sold in powdered form. Either way, start by wetting the affected area with warm water. Then, apply the product and let it dry. Finally, rinse with clear water. For best results, follow the manufacturer's instructions.

Natural Homemade Remedies

Hard water stains are one of the most common problems homeowners face. They are caused by minerals like calcium and magnesium turning into deposits on surfaces such as sinks, toilets, tubs, showers, and faucets.

These deposits form over time and cause unsightly dark spots on fixtures. While there are many commercial options, making your own natural remedies at home is easy enough.

There are a variety of natural ingredients that you can use to clean and deodorize your hard water spots. Some of the best include baking soda, vinegar, lemon juice, salt, and essential oils.

Baking soda works well because it contains sodium bicarbonate, which removes soap scum buildup and helps prevent future issues. Lemon juice is great for cleaning grout and tile. 

Salt is effective against mildew and mold growth, while essential oils are used to eliminate odors. Vinegar is another highly effective ingredient for getting rid of tough water stains.

Simply mix equal parts white vinegar and warm water and apply to stained areas. Let sit for 30 minutes, rinse thoroughly, and wipe dry.

Tips to Keep Hard Water Stains Away Longer

Tips to Keep Hard Water Stains Away Longer

Hard water stains are unsightly and difficult to clean. They're caused by minerals that leach out of pipes and into the water supply. If you live in an area where hard water is common, it's important to understand what causes hard water staining and how to prevent it.

To ensure that you don't end up with hard water stains on your glass, shower doors, mirrors, windows, sinks, tubs, toilets, faucets, and fixtures, follow these tips:

1. Don't use tap water to wash dishes or clothes. Instead, use distilled water or bottled water.

2. Avoid washing laundry in cold water. Wait until the temperature reaches 140 degrees Fahrenheit.

3. Make sure that your dishwasher uses hot water.

4. Clean your bathroom sink regularly.

5. Change your showerhead every six months.

Are there any other tips or tricks for removing stubborn water spots?

Here are some additional tips:

  1. Don't scrub the window. Scrubbing will only scratch the surface of the glass. Instead, gently rub the stain with a soft cloth.
  2. Do not use harsh chemicals such as bleach or ammonia. These chemicals could damage the finish of the glass.
  3. Avoid using abrasive materials like sandpaper. Sanding can scratch the surface of the window.
  4. Avoid cleaning the glass when it is wet. Wet glass may crack.
  5. Never use a pressure washer. This can damage the glass.
  6. Wipe up spills right away. If you leave them overnight, they'll be harder to clean.
  7. Use a squeegee to remove water spots. Squeegees are inexpensive and easy to find at home improvement stores.
  8. Use a microfiber towel to dry the glass after washing. Microfiber towels absorb moisture while keeping the glass streak free.
  9. Use a dehumidifier to keep your house humid enough that the water spots won't form.

Watch How to Remove Water Spots from Windows

How to Remove Water Spots from Windows FAQ:

1. Q: Why don’t the water spots on my car windows come off?

A: It depends on the material the window is made of. Some cars have vinyl windows, which are very difficult to remove water spots from. Other vehicles have glass windows, which are much easier to remove water spots from than vinyl windows.

2. Q: How do I remove water spots from my shower door?

A: Shower doors are usually made of plastic. To remove water spots from a shower door, apply a silicone sealant coat. Silicone sealants are available at most hardware stores.

3. Q: What should I do if I accidentally spilled coffee on my computer screen?

A: Coffee stains aren't hard to remove. Simply blot the spot with a paper towel. Let the paper towel soak in the coffee for 30 seconds. Then, blot the spot again. Repeat until the stain disappears.

4. Q: How to remove the water stains on my laptop screen?

A: Laptop screens are usually made of glass. Simply wipe the screen with a damp cloth to remove the water stains from the laptop screen.

5. Q: Can I remove water spots from mirrors?

A: Yes. Mirrors are usually made of glass, similar to laptop screens. However, you need to use a different method to remove mirror water stains. Use a mixture of one part rubbing alcohol and two parts water. Rub the solution into the water spots. Wait about 10 minutes before wiping the mirror clean.

6. Q: How to remove water spots from bathroom tiles?

A: Bathroom tiles are often made of porcelain—Mix equal amounts of vinegar and baking soda to remove water spots on bathroom tiles. Apply the mixture to the water spot. Let it sit for 5-10 minutes. Then, wipe the tile clean with a soft rag.

7. Q: How can I remove water spots from ceramic tiles?

A: Ceramic tiles are usually made of clay—Mix equal amounts of white vinegar and dish soap. Apply the mixture to water spots on ceramic tiles. Let it sit for 15 minutes. Rinse the tile with warm water. Dry the tile with a soft cloth or paper towel.

8. Q: What about using commercial cleaners to remove water spots?

A: While many swear by their favorite brand, there's no guarantee that it will work. You should always test a small amount of the cleaner on a hidden area first.


Use the methods and solutions we discussed above and you will be able to remove water spots from your window faster than ever. Even though this task may seem simple, it can become quite difficult when the stains are old because they leave some marks on the glass that can be very hard to get rid of.

If you have any issues with removing these stains, then just hire a professional window cleaner who knows how to handle such situations. They will use all possible methods to make your windows spotless again.


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