The Ultimate Guide: Removing Hard Water Stains from Glass Shower Doors

December 12, 2023

Last updated on February 2, 2024

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The benefit of having glass shower doors is the sleek, classic beauty they add to any bathroom. It’s a nuisance when streaks of hard water stains and soap scum interrupt that beauty. 

To answer ‘how to clean glass shower doors with hard water stains,’ you’ll need a handful of tools and ingredients. These tools work for treating as well as preventing future stains, and they include white vinegar, baking soda, a spray bottle, a microfiber cloth, a squeegee, lemon oil, Shower Guard, and more.

The trained glaziers and technicians at Kryger Glass can provide you with glass shower door services, like Shower Guard, as part of their expert installation. 

Are you still interested in learning more? Read on to discover what removes hard water stains from glass shower doors

How Do Hard Water Stains on Shower Glass Form? 

Now that you understand how to rid your shower of stains, you must know that some factors contribute to hard water stains on shower glass that have nothing to do with you. 


Whether your shower has hard water contributing to staining depends entirely on your location. Focusing on preventing and removing stains rather than remedying hard water is better in this situation. 


Some minerals naturally exist in water, like calcium and magnesium. When water evaporates, deposits of these minerals linger on shower glass, creating limescale. The definition of “hard water” is mineral-dense water.


When soap that contains paraffin wax (typically found in bars of soap) meets hard water, the outcome is a layer of soap scum on the shower glass. This is caused by the fatty acids in soap reacting to the minerals in the hard water.

Best Way to Clean Glass Shower Doors with Hard Water Stains

You don’t always need expensive and toxic chemicals to clean surfaces. Sometimes, the most effective products are the ones sitting in your cupboard. 

Baking Soda Mixtures

Plop a generous amount of baking soda and mix in water until the consistency is paste-like. Scoop this out and smear it on areas with heaving soap scum stains. Leave it to marinate on the spots for 5-10 minutes, then wipe it away with a microfiber cloth or sponge. 

Baking soda has the same cleaning power as ammonia-based products, only it’s a natural, non-toxic ingredient. Due to it being an alkali, it can break down grease – and stains! 

The stains may be too harsh for just water and baking soda. In that case, add hydrogen peroxide to baking soda and use that instead for maximum cleaning power. 

White Vinegar Mixtures

Distilled white vinegar is effective when combined with dish soap. Pour that mixture into a spray bottle and repeat the same steps as baking soda: let sit, then wipe away. 

Another mixture that includes white vinegar also has lemon oil and water. Lemon is excellent for eliminating mold and as a disinfectant. It will also keep the vinegar smell at bay. 

Other Practices and Products

There are other ways to target shower stains, and that’s through preventative measures. 

Use a Squeegee

Like at a car wash, the idea is to wick water away from the glass so that it doesn’t sit, dry, and create spots. Every time you finish showering, use the squeegee. Creating habits is an excellent way to avoid stains or streaks. 

If you don’t have access to a squeegee, try a rag instead; make sure it is not too rough for the glass by first trying it on a small section. 

Enhance Air Circulation

Most bathrooms have vents or fans to help circulate air. Unfortunately those two things don’t always work. If that’s the case, then open a window or make sure to open the door immediately after showering so that the steam doesn’t have a chance to sit. 

Shower Guard

ShowerGuard glass offers a lasting solution for shower enclosures, featuring a special coating applied during manufacturing. This unique treatment makes the glass highly resistant to corrosion and easy to clean, effectively preventing damage from hard water, soap, and humidity. With ShowerGuard, cleaning becomes effortless, and there’s no need for additional treatments or coatings, ensuring a consistently clear and spotless appearance for your shower area.

Regular Cleaning Routine

Even with preventative measures, regular cleaning is essential. A weekly cleaning routine can help maintain the glass’s clarity and prevent long-term buildup.

Professional Services

At Kryger Glass, we specialize in providing top-tier residential glass services, including glass shower doors that suit every style and need. Our experienced glass specialists are ready to assist you in exploring the various types of glass shower doors available, ensuring your selection perfectly aligns with your bathroom’s design. From elegant frameless to practical sliding options, we have the expertise to guide you in choosing the ideal type for your space. Reach out to us today, and let’s start crafting the shower oasis you’ve envisioned.

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