Homemade Window Cleaner

Whether you’re tackling grimy bathroom mirrors or giving your windows a seasonal refresh, this simple homemade window cleaner gets the job done—no fancy chemicals are required.

If you’ve ever used a store-bought window cleaner and been overwhelmed by the strong chemical smell or left wondering what exactly was in that blue liquid, you’re not alone. That’s why I ditched commercial cleaners for good and started making my own simple, effective window spray with just two ingredients. This homemade formula leaves glass surfaces crystal clear without the overpowering scent or unnecessary additives. Best of all, you probably already have what you need at home.

How To Make Homemade Window Cleaner

For this recipe, you will need isopropyl alcohol and distilled water. You can also add optional essential oils to the mixture for added scent.

Mix one cup of 1 cup distilled water with one cup of 70% isopropyl alcohol. Add essential oils if using, and mix well. Pour the mixture into a glass spray bottle and secure it with the spray nozzle. 

Shake well before cleaning.

How to Use Homemade Window Cleaner

Before you even reach for your spray bottle, do a quick dry wipe:

1. Dust first. Use a clean, dry cloth or lint-free rag to wipe off any loose dirt, dust, or pet hair. This prevents smearing and makes cleaning more effective.
2. Spray generously. Give your window or mirror a thorough misting.
3. Let it sit. Don’t wipe right away—let the solution sit for 10–15 seconds so it can break down grime.
4. Wipe clean. Use a second clean microfiber cloth to wipe in a circular motion, then follow with vertical or horizontal strokes to finish.

Why This DIY Window Cleaner Works

The base recipe is made from just two ingredients:

• Water (preferably distilled to avoid mineral deposits)
• Isopropyl alcohol (also known as rubbing alcohol)

This powerful duo cuts through grime, dries fast, and leaves behind a streak-free shine. Isopropyl alcohol is a natural solvent and disinfectant. It evaporates quickly, which helps minimize water spots and streaks. When paired with distilled water, which doesn’t contain the minerals found in tap water (especially in hard water areas), it creates an ideal cleaning combo for glass surfaces.

How to Customize This Recipe

While water and rubbing alcohol work beautifully on their own, you can absolutely tweak this cleaner to suit your preferences or boost its cleaning power:

• Add a few drops of essential oil (like lemon, lavender, or eucalyptus) for a fresh scent.
• Swap in white vinegar for part of the water if you want extra grease-cutting power—just note the smell isn’t for everyone.
• Use witch hazel instead of rubbing alcohol if you prefer a more natural alternative, though it won’t evaporate as quickly.

Suggested Mix Variations:

• Standard mix: 1 cup water + 1 cup 70% isopropyl alcohol
• With vinegar: 1 cup water + ½ cup alcohol + ½ cup white vinegar
• With essential oils: Add 5–10 drops of your favorite essential oil to any of the above mixes.

Homemade Window Cleaner FAQ

Can I use tap water instead of distilled?

Yes, but distilled water is preferred—especially if you live in an area with hard water. Tap water can leave behind minerals that cause spots or streaks.

Is this safe for tinted windows or car windows?

It’s generally safe, but always check your manufacturer’s guidelines. Some tinted films may be sensitive to alcohol-based products.

Does this cleaner disinfect, too?

Yes! The rubbing alcohol not only cleans but also disinfects surfaces, which makes it great for shared bathroom mirrors or frequently touched glass.

Can I store this long-term?

Absolutely. Since rubbing alcohol is a preservative, your cleaner will last for months. Just keep it tightly sealed and stored in a cool, dark place.

Related:

• DIY Natural Grout Cleaner
• DIY Oven Cleaner Paste
• DIY Granite Cleaner
• Homemade All Purpose Cleaner Recipe
• DIY Degreaser Spray
• DIY Dish Soap Bar (Solid Dish Soap)

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