Removing Hard Water Spots on Windows

Sometimes the water from the sink or a sprinkler can make stubborn water spots on your windows. This guide is about removing hard water spots.
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May 24, 2010 Flag
13 found this helpful

My husband read so many solutions on removing hard water spots on windows, but nothing ever worked for him. The windshield on our motor home was so stained from the water that would run down it, that we tried everything on the market just like so many others. We bought so many products from acid wash, scrub with SOS, to Comet.

I always use Scrubbing Bubbles for everything in my house. I told my husband for so long to try Scrubbing Bubbles but he always told me, "No that isn't going to work", until one day when he was frantic, he did try Scrubbing Bubbles along with extra fine steel wool. He couldn't believe his eyes. The glass is crystal clear and just like new. Now he won't use anything else just like I won't use any other product except for Scrubbing Bubbles inside.

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So every one who is at their worst with hard water spots please use this product. It really does work. I know this sounds like a infomercial, just try for yourself.

Scrubbing Bubbles Fan!

By Peewee the Cat and Family from San Bernardino

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August 6, 20160 found this helpful

It worked great. ..thanks

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October 22, 20160 found this helpful

Try Lysol toilet bowl cleaner with Windex or such.

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September 25, 2015 Flag
4 found this helpful

I was having trouble getting water spots off my windows until my neighbor suggested using alcohol. I used 91% rubbing alcohol from the drugstore that I already had in the house and paper towels. I didn't even have to scrub. The spots came off like magic.

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Anonymous Flag
April 1, 20160 found this helpful

This works great!

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June 26, 2011 Flag
0 found this helpful

All my windows have spots on them and that makes it difficult to see. I have deep, deep water. I have tried many cleaners. Please help.

By Dennis

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June 28, 20110 found this helpful
Best Answer

If you have hard water spots on your windows they will be hard to clean. Lime away does work but I don't like the harsh chemical. Spray your window with a window cleaner and use a scraper with a blade (the kind you use to remove paint on a window) to scrape over the hard water spots. Be careful to keep the blade flat and not scratch the window. Wipe the window and spray any spots you missed and scrape these away. If you have a huge build up, ammonia water works better than window cleaner but then again, you are dealing with harsh smelly chemical.

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Anonymous Flag
May 22, 20160 found this helpful
Best Answer

DO NOT use a scraper blade on double glazed windows as the glass is softened as it heated in manufacturing and the blade will scratch the glass - trust me I did it

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April 1, 2015 Flag
1 found this helpful

Bar Keepers Friend and a soft scrub sponge works best for me. It removes all shower spots and window spots from sprinklers. Window on right had the whole lower half with spots.

A window with water spots on one side.

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November 23, 2010 Flag
5 found this helpful

I have had very hard water spots on my windows from the irrigation system for a year. I just tried Colgate Toothpaste as suggested by Chris on ThriftyFun. My windows are now perfectly clear and it was so easy!

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June 11, 2013 Flag
0 found this helpful

I had washed my car in the afternoon and the water drops dried. I was unable to remove the stains. So how can I remove the stains? My car is a Maruti Suzuki swift.

By rajkamal

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November 26, 20160 found this helpful
Best Answer

Sorry, plain vinegar DOES NOT WORK, I'm a professional window washer, for 15 years, deep water spots won't go away, only if it is on the surface and is new, then Lime Away and a paint scraper will work.

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June 14, 20131 found this helpful

Wash with vinegar.

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January 22, 2015 Flag
2 found this helpful

To remove hard water spots from glass, you need glass cooktop cleaner, a non-scratch scrubbing sponge, a wet rag, and a microfiber towel.

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January 7, 2014 Flag
2 found this helpful

Use shower cleaner, SOS pad, and water.

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July 4, 2011 Flag
0 found this helpful

I have four 10'X6' windows (all glass) and about 15 smaller windows of different sizes that get sprayed by water containing calcium, and various other minerals that will not wash off with soap or other washer solutions. I presently use dish soap and hot water and a bit of CLR added. I have used an ammonia solution, vinegar, and rubbing alcohol. Nothing really phases the stains even though the windows get clean, they still show those hard water stains.

We use ditch water to irrigate the lawn by a sprinkler system. Help! I also used automotive products and the products that you are supposed to put on and hose off. They definitely made no difference other than to clean.

By Lula C. from Cimarron, CO

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Anonymous Flag
August 3, 20160 found this helpful

I had acid rain spots that were etched in the glass. I tried everything to get them off,I even took my car to a body shop where they tried buffing them and tried the strongest cleaner they had and they were still there.They were so bad that when driving at night and meeting a car, I could barely see. Now for the good news,go to Bilo and get barkeeper's friend. It's on the cleaning products row and cost $1.99 Make a paste,rub on the window,takes some effort but I promise you it will work.Rinse and you will be amazed.My windows are clear now and look like new.

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August 25, 20160 found this helpful

I just got done cleaning 2 small windows. Like many of you they had years of calcium water spots on them. You could barely see through them. I used the Barkeeper's friend and it worked. I made it into a paste on a small scrubber that you would use for pots and pans (non abrasive). I finished it off with WD 40 and now the windows are shiny and look like new. It was a fluke that I tried it but I had tried everything else that was on the internet...I was at my wits end. I tried all of the other suggestions and this one worked!

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May 20, 2014 Flag
0 found this helpful

My car windows were covered in hard water spots after mistakenly parking near a sprinkler at work on a hot summer day. I have washed my car three times and paid close attention to the windows, but had no luck getting the spots off. Today I decided to see what I could do with household products.

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February 13, 2011 Flag
0 found this helpful

I've tried to clean my house windows with cleaners such as Windex, Bon Ami, vinegar, Colgate toothpaste, Cascade, Dawn, and baking soda. They are stained with water spots and grime. We live on the golf course and I don't know what all they spray on the fairway, etc., but I can't get my windows clean. Please help!

By Bill from Fontana, CA

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February 14, 20110 found this helpful

Once you get them clean, coat them with Rainx. It will save a lot of work later on.

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February 14, 20110 found this helpful

What you are describing as water spots sounds more like Sticker spots. Sticker is a chemical that somewhat water proofs another chemical like fungicides. The make-up of this stuff is pretty simple it's like Elmers glue and dish soap, something I have used when landscaping in large complexes.

To remove Sticker spots use alcohol, rubbing will work as will alcohol based hand sanitizers. You may also have to use a light abrasive like baking soda. Dampen a cloth with the alcohol or rub the sanitizer on the window and scrub ( you may want to let the sanitizer sit to work it's way into the stains) then polish with the baking soda and rinse. It may take more than one application to remove all this stuff.

After you get the windows clean seal the glass with a rainex type product. Also check into having the golf course clean up their mess, if this has gotten onto your windows via a pesticide application they could be liable for the damage.

I do not think there is any health concern as a Sticker product in not used with toxic chemicals.

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August 6, 2011 Flag
0 found this helpful

How do I remove hard water spots from glass?

By Barbara G.

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August 9, 20110 found this helpful

Someone once told me that oven cleaner would do it. I have never tried it.

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September 15, 20160 found this helpful

Used oven cleaner once and it cracked my windows. $800.00 later to replace.

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August 17, 2013 Flag
0 found this helpful

I water my lawn with very hard water in a very windy area. There is almost no way to keep the water off my windows every time I water. In the past, I had used ammonia to wash the windows and vinegar to get rid of the hard water stains.

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August 1, 2013 Flag
0 found this helpful

I'm not sure what they are called, but I'll say I have windshield streaks. They are lines going straight down all across. This happened during the winter. Anyone know what this is, or how to remove them?

By Jack

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August 3, 20130 found this helpful

"Full strength" white vinegar and a newspaper (not a paper towel) - wadded up newspaper does a better job.

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April 6, 2010 Flag
0 found this helpful

I have frosted glass by the side of my front door, it is the length of the door. The problem I am having is I can't get the water stains off of it. I've tried several glass cleaners but it always looks the same. Its outside so it gets wet quite often. Is there anything I can use to get those stains off? Please help.

By Dawn from Spokane, WA

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April 6, 20100 found this helpful

Have you tried white vinegar? It should do the job with a wash cloth. Good luck.

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April 7, 20100 found this helpful

Use the vinegar. I'd use a scrubby sponge though. Then after you get it clean, use a lemon oil furniture polish with a terry wash cloth to apply to the glass where the water hits it. You'll most likely have to re-apply every couple of weeks but it sure helps on our glass shower doors.

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August 5, 2011 Flag
0 found this helpful

How do I get water spots off the outside of a picture window?

By Debbie

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August 8, 20110 found this helpful

Are they water spots caused by hard water, such as that from a sprinkler, hitting your window? If so, vinegar should remove them. Do not dilute when you use it. I would put it in sprayer, and spray on full strength.

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November 10, 2010 Flag
1 found this helpful

How do I remove hard water spots on vehicle windows, that have been driven and exposed to all sorts of elements? Besides hard water stains, there are other unknown spots. Thank you.

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