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How to Remove Hard Water Stains from Glass Shower Doors

Close up photo of Chef Jessica Randhawa of The Forked Spoon in a blue spotted dress, in the sunlight Jessica Randhawa
January 3, 2019
4.81 from 574 votes


Last Updated June 28, 2020 | 208 Comments

This post may contain affiliate links. Read my disclosure policy.

shower door half covered in translucent hard water, half cleaned and clear
Shower Door half clear and half translucent due to hard water build up
hard water covered translucent shower door

Learning How to Remove Hard Water Stains from Glass Shower Doors is possible! A few simple steps, tools and a whole lot of elbow grease is all it takes to get your glass shower doors looking like new in no time!

Glass shower door with half of the hard water stains removed and the other left as is.

It’s no secret that I live in an area flowing with hard water. A couple years ago I shared How to Remove Hard Water Stains from Toilets, but I was still stuck with hard water stains on my glass shower doors. 

What is the difference between hard and soft water?

  • Hard Water is water which contains an appreciable amount of dissolved minerals such as calcium and magnesium.
  • Soft Water, on the other hand, contains less dissolved minerals. Or, when treated, the only ion it may contain is sodium (causing this treated water to taste badly due to the leftover sodium ions). Naturally falling rainwater is soft water, for example.

How then does water become “hard water”?

Great question! I’m so glad you asked.

Water becomes hard as it makes its way through the ground and into our waterways. Along the way, this water picks up minerals like chalk, lime, calcium, and magnesium.

Pros and Cons of hard versus soft water

Wait. There’s a pro to hard water?

Oh yes! read on…

Given that hard water contains all these essential (and super important) minerals (remember the calcium and magnesium?) and tastes significantly better, one may wonder why we even think of softening our water. I mean, if hard water is better for you and it tastes better, why mess it up?

Well, aside from these obvious benefits, hard water is hard on appliances (dishwashers and washing machines) and is hard to clean. Clothing feels unclean even after washing and since soap reacts negatively with magnesium and calcium, even your hair may feel dirty and sticky after washing.

In short, hard water is less effective and uses more energy due to the mineral buildup that is left behind.

Ok, wonderful….so what about soft water?

Hard water, when treated, removes the magnesium and calcium that was picked up to, once again, create soft water. Unfortunately, while most of the ions are removed from soft water, the negatively charged sodium ion remains. And, well, we all know what sodium is, right? As a result, treated soft water not just tastes salty, but actually increases your sodium intake each day.

And this, my friends, brings me to my next point…

Thick hard water build-up on a glass shower door
hard water stains on the shower door in a bathroom

What is causing those ugly spots on my glass shower doors?

Hard Water. Period. The end.

Yes, each time you take a shower and allow the water to dry on the glass, those spots and stains are the minerals left behind.

Depending on how bad your hard water is, or how long your buildup has been building up, will likely determine how bad your shower doors look and how difficult they will be to clean.

Now, let’s fix this problem. Kay?

Methods that did not clean the hard water from my glass showers

  • Lemon
  • Vinegar
  • Baking soda
  • Lemon, vinegar, baking soda in combination
  • Razor blade
  • Tilex, Scrubbing Bubbles, etc.

None of these things worked.

So, for a long time I gave up and, as a result, the stains continued to get worse and worse until one day I just COULD NOT ANYMORE. 

So, I started thinking along the same lines as my toilet solution which uses fine-grit drywall screens to clean the hard water buildup. Maybe, just maybe, there was something out there that I could use on glass?

Lucky for us, there is!

Supplies needed to clean glass shower doors- Bar Keepers Friends, gloves, 0000 Super Fine Steel Wool, and a mask.

What you need to remove hard water from glass

  • 0000 Super Fine Steel Wool
  • White vinegar
  • Spray bottle or bed sheet
  • Gloves
  • Medium-sized mixing bowl or measuring cup (I used a 2-cup Pyrex measuring cup)
  • Barkeepers Friend (not the spray. I used the stuff for pots and pans, but any of the powdered kind will work)
  • Face-mask

Soaking a glass shower door in white vinegar.

How to Clean Glass Shower Doors

Guys, there is no way around it. In order to remove those ingrained mineral deposits stuck to your shower doors, you will have to use some serious elbow grease. This is not a gentle once over and done type fix. My advice is to work in sections and ask your husband or stronger significant other to help if you get tired. Please, do not be discouraged if you still have some hard water spots after the first round of scrubbing. For those really tough spots, you may need to go over it a couple times.

  1. Gather supplies.
  2. The vinegar soak. Depending on how bad your buildup is, you may or may not need to do this step. Mine was looking pretty miserable, so I decided to soak a sheet in white vinegar and drape it over my shower door. I then pressed as much of the sheet against the glass as possible so that the glass could “soak” in vinegar. If the sheet started to dry out, I would spray with additional vinegar. Please note- this step alone will do nothing to remove or eliminate the hard water stains on your glass shower doors.
  3. Rinse. After approximately 30 minutes (just enough time to clean the rest of the bathroom!), remove the sheet (or relocate to a different part of the shower), and rinse with water.
  4. Prepare the Barkeepers Friend paste. Put on the mask (if you have one) and gloves (if you don’t have some, buy some). To a bowl or cup add approximately 1/4 cup of powdered Barkeepers Friend. There is no need to measure an exact amount, this is just to give you an idea of where to start. Slowly add water until a paste forms, mixing well.
  5. Scrub. Use your hand to rub the paste over a section of the glass shower door, and, using a 0000 Super Fine Steel Wool pad, start scrubbing. Small circular motion, large circular motion, up and down, just scrub. Once you feel you’ve been scrubbing for far too long and surely you must have shiny clean spotless doors, rinse. For some, this may be the case after one application. For others, you may need to scrub one more time.
  6. Rinse well. And remember to use a glass cleaner to clean the other side of the glass.
bar keepers friend being applied to shower door covered in hard water stains
A woman standing in front of a door rubbing cleaner on hard water stained glass

Frequently Asked Questions

  1. Is Barkeepers Friend Septic-safe? Yes. Oxalic acid cleansers are acidic instead of alkaline, which makes them more effective against rust, tarnish, oxidation, mineral scale, hard water, and lime deposits than most other cleaning products. Unlike other acidic cleaners, Bar Keepers Friend doesn’t use fillers or bleaches, making them biodegradable and safe for septic systems.
  2. Can I use any steel wool? Does it have to be 0000 Super Fine Steel Wool? No, I would not recommend using any other steel wool except super fine 0000. Of course, feel free to use any brand you prefer, but less fine steel wool may scratch the glass.

Hard water buildup on glass shower doors before and after.

Yay! Sparkling Glass Shower Doors! 

Before and after clean glass shower door with 0000 super fine steel wool pads.

half cleaned shower door with the other half translucent with hard water stains

How to Clean Glass Shower Doors

4.81 from 574 votes
Learning How to Remove Hard Water Stains from Glass Shower Doors is possible! A few simple steps, tools and a whole lots of elbow grease is all it takes to get your glass shower doors looking like new in no time!
Print Pin Rate Save Saved!
Author: Jessica Randhawa
Prep Time: 10 minutes minutes
Active Time: 1 hour hour
vinegar "soak": 30 minutes minutes
Total Time: 1 hour hour 40 minutes minutes

Equipment

  • Reusable Latex Gloves
  • Spray bottle or bed sheet
  • Medium-sized mixing bowl or measuring cup (I used a 2-cup Pyrex measuring cup)
  • Face-Mask

Materials

  • White vinegar
  • Bar Keepers Friend
  • 0000 Super Fine Steel Wool
Prevent your screen from going dark

Instructions

  • Gather supplies.
    tools and equipment needed to clean a glass shower door
  • The vinegar soak. Depending on how bad your buildup is, you may or may not need to do this step. Mine was looking pretty miserable, so I decided to soak a sheet in white vinegar and drape it over my shower door. I then pressed as much of the sheet against the glass as possible so that the glass could “soak” in vinegar. If the sheet started to dry out, I would spray with additional vinegar. 
    Shower with hard water stains being treated
  • Rinse. After approximately 30 minutes (just enough time to clean the rest of the bathroom!), remove the sheet (or relocate to a different part of the shower), and rinse with water.
    Thick hard water build-up on a glass shower door
  • Prepare the Bar Keepers Friend paste. Put on the mask (if you have one) and gloves (if you don’t have some, buy some). To a bowl or cup add approximately 1/4 cup of powdered Bar Keepers Friend. There is no need to measure an exact amount, this is just to give you an idea of where to start. Slowly add water until a paste forms, mixing well.
    A woman standing in front of a glass shower door spreading chemicals for cleaning hard water build up
  • Scrub. Use your hand to rub the paste over a section of the glass shower door, and, using a 0000 Super Fine Steel Wool pad, start scrubbing. Small circular motion, large circular motion, up and down, just scrub. Once you feel you’ve been scrubbing for far too long and surely you must have shiny clean spotless doors, rinse. For some, this may be the case after one application. For others, you may need to scrub one more time.
    bar keepers friend being applied to shower door covered in hard water stains
  • Rinse well. And remember to use a glass cleaner to clean the other side of the glass shower door.
    Glass shower door half cleaned, half not cleaned, with cleaned side transparent and not cleaned side translucent

Jessica's Notes

In order to remove those ingrained mineral deposits stuck to your shower doors, you will have to use some serious elbow grease. This is not a gentle once over and done type fix. My advice is to work in sections and ask your husband or stronger significant other to help if you get tired. Please, do not be discouraged if you still have some hard water spots after the first round of scrubbing. For those really tough spots, you may need to go over it a couple times.
Is Barkeepers Friend Septic-safe? Yes. 
Keyword: How to Clean Glass Shower Doors, How to Remove Hard Water Stains from Glass Shower Doors

About Jessica

Close up photo of Chef Jessica Randhawa of The Forked Spoon in a blue spotted dress, in the sunlight

Chef Jessica Randhawa leads The Forked Spoon. A world traveler, Jessica developed her passion for culinary arts while adventuring. With her recipes making their way onto renowned platforms such as Women's Health, Daily Mail, Al Jazeera, and Fox News, she's marked her presence in the culinary world. Jessica's academic credentials include a Bachelor of Science from the University of California.

54.3K shares
Close up photo of Chef Jessica Randhawa of The Forked Spoon in a blue spotted dress, in the sunlight

About Jessica Randhawa

Chef Jessica Randhawa leads The Forked Spoon. A world traveler, Jessica developed her passion for culinary arts while adventuring. With her recipes making their way onto renowned platforms such as Women's Health, Daily Mail, Al Jazeera, and Fox News, she's marked her presence in the culinary world. Jessica's academic credentials include a Bachelor of Science from the University of California.

Comments

  1. Joann says

    February 24, 2024 at 5:56 pm

    I cannot use vinegar in my tub area. I have a rebath remodel and I can Never let vinegar touch that or it will discolor it.

    Reply
  2. Steve Woodward says

    February 20, 2024 at 6:05 pm

    5 stars
    My doors were pretty bad. I used a razor blade to get some but I did end up leaving some scratches. I also tried the Cerium Oxide and special pads on my da polisher, which didnโ€™t do much. I used your idea but skipped the vinegar, just Bar Keepers and 0000 steel wool. Iโ€™ve got most of it off now. Thank you!

    P.s. do you know of any product, ceramic paint treatment, or ? that might provide a barrier after cleaning. Maybe some waxโ€ฆ

    Reply
    • Close up photo of Chef Jessica Randhawa of The Forked Spoon in a blue spotted dress, in the sunlightJessica Randhawa says

      February 20, 2024 at 7:28 pm

      I am so glad to hear that this worked for you.

      Unfortunately I have not had any good experience with a product to seal if off ๐Ÿ™

      Reply
    • Natalye Keister says

      March 9, 2024 at 6:21 am

      5 stars
      rain-x! they market one for shower doors, but the regular one for automotive windshields works!

      Reply
    • Eileen says

      August 6, 2024 at 2:50 pm

      Rain X!! It works wonders once youโ€™ve cleaned your shower doors. Itโ€™s meant for vehicles so you find it in that isle and Home Depot carries it too in the cleaning isle. The water will just bead off the doors and squeegee after ever shower to prevent it from forming again.

      Reply
      • Sharon says

        August 16, 2024 at 12:34 am

        I tried RainXโ€ฆit didnโ€™t work at all. The spray that supposedly keeps the water from collecting has such a toxic odor, I couldnโ€™t use it. Iโ€™m not a fan of this product at all

  3. Rashin says

    February 18, 2024 at 7:49 am

    5 stars
    Excellent,thank you๐ŸŒบ๐ŸŒบ

    Reply
  4. Merrily D Munson says

    January 20, 2024 at 9:23 am

    I purchased a home built in the 1980s in 2005. Being in the high desert the water was extremely hard and the glass shower door was no longer translucent. I can’t tell you where I read this I simply don’t remember, but the article said use a bottle of the clear suave or any other brand of clear older brand shampoo and a scrubby sponge, you simply took the shampoo and liberally spread it all over the glass and the aluminum frame and let it sit for a couple of hours, the rest was easy grab your scrubby sponge and take a shower, use your handheld sprayer and spray the door off completely and if necessary use the scrubby sponge on any areas that are not clean. It works like magic, it’s not toxic and those clear old fashioned shampoos are extremely cheap at Walmart.

    Reply
  5. Denise Lynch says

    November 25, 2023 at 9:52 pm

    Itโ€™s been my experience to use a paste made from Comet and water. I let that sit anywhere from a half an hour to 4-5 hours while I clean the rest of the house. When I return, I use an SOS pad and go over the entire door with the paste remaining. Hereโ€™s my final step. I use Mr Cleanโ€™s Magic Eraser. Sometimes I will add Comet to the eraser. As you say, it takes a lot of elbow grease. It seems the further down the door, the more difficult it is to clean. If you do this process every week, you will have sparkling glass everyday. The use of a squeegee to remove the water droplets after each shower will dramatically give you longer times of sparkling glass.

    Reply
  6. Susie says

    August 21, 2023 at 7:11 am

    I have polished bronze hardware and shower door. Will this tarnish/ damage them? How do I help prevent big up? Can I use WD40 on my hardware to keep hard water build up?

    Reply
    • Close up photo of Chef Jessica Randhawa of The Forked Spoon in a blue spotted dress, in the sunlightJessica Randhawa says

      August 21, 2023 at 8:53 am

      I am not sure about your hardware, especially considering the polish.

      If you decide to try it on your hardware, test it on a small unnoticeable spot first.

      Not sure about WD40 on your hardware either.

      Reply
    • Bob says

      October 3, 2023 at 10:37 am

      Go to Amazon.com and order Amaze. It works great and it even removed water stains that had been untouched for 20+ years! I have extremely hard water and the previous owner never cleaned the glass shower doors. A professional window cleaner couldn’t get them clean. Amaze DID it in one application!

      Reply
  7. B says

    August 9, 2023 at 2:55 pm

    5 stars
    Amazing!

    Reply
  8. Jess says

    August 6, 2023 at 9:11 am

    Anything to prevent having this-something daily?

    Reply
  9. Rebbecca says

    May 4, 2023 at 4:27 pm

    5 stars
    So happy to have found this solution! I didnโ€™t use the sheet (as I wasnโ€™t interested in dealing with the sheet aftermath) soaked the doors by spraying with vengar and rinsed. Followed the rest of the directions and I am happy to report beautifully clean doors๐Ÿ™Œ๐Ÿผ

    Reply
    • Close up photo of Chef Jessica Randhawa of The Forked Spoon in a blue spotted dress, in the sunlightJessica Randhawa says

      May 5, 2023 at 10:14 am

      Thanks for the great feedback and rating, Rebbecca ๐Ÿ™‚

      Reply
  10. frank g says

    March 12, 2023 at 1:05 am

    I have been professionally cleaning for many years. All you need is a simple scotchbrite sponge and toilet cleaner. I use Harpic. Then finish with glass cleaner.

    Reply
    • Gerald Hicks says

      February 17, 2025 at 9:09 am

      Can you use the soft cleanser from bar keeperโ€™s friend? Thanks.

      Reply
      • Close up photo of Chef Jessica Randhawa of The Forked Spoon in a blue spotted dress, in the sunlightJessica Randhawa says

        February 17, 2025 at 2:25 pm

        I have not tried it yet, but I dont see why not ๐Ÿ™‚

  11. maria says

    January 25, 2023 at 1:29 pm

    5 stars
    since my water stains were on lower part of door, I took bounty(absorbent) paper towels and “glued” them to the glass by spraying the vinegar -that’s how I soaked the panels — as it dried I sprayed towel patches with more vinegar. Worked top half and then bottom half. Good results

    Reply
  12. Lisa says

    January 19, 2023 at 10:57 am

    5 stars
    You are a miracle worker. My shower door is from the 80s as is m house. I have tried everything short of replacing the whole shower. I had to do the whole treatment 3 times but it lasted oks brand new now.

    Reply
  13. Debra says

    November 14, 2022 at 7:31 am

    5 stars
    I have tried everything through the years and I can truly say this is the first thing I found that actually works fantastic. It took three times but it was well worth it thank you so much.

    Reply
    • Diana says

      August 4, 2024 at 3:08 pm

      Itโ€™s so easy to remove. Just figured it out last week! WD40!!!! I put it on in lines across doorโ€ฆ let it run down for a bit and took an exfoliating sponge to scrub it in circles clockwise and counter. Then took sprayer on hot, and Ryanโ€™s Ed top to bottom while using exfoliating sponge underneath to help rinse. AMAZING. Please try it!

      Reply
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Recipe Rating




4.81 from 574 votes (493 ratings without comment)

Close up photo of Chef Jessica Randhawa of The Forked Spoon in a blue spotted dress, in the sunlight

Welcome to The Forked Spoon! I’m Chef Jessica Randhawa, and for over 14 years, I’ve been crafting and sharing more than 1200 recipes, blending delicious flavors with practical kitchen tips and expert culinary advice to elevate your everyday cooking. Learn more about meโ†’

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