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Removing Hard Water Spots on Windows

Category Windows
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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Share on ThriftyFunThis guide contains the following solutions. Have something to add? Please share your solution!

By 13 found this helpful
May 24, 2010

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.

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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.

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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By 5 found this helpful
November 23, 2010

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! I put a little Colgate Toothpaste on a damp paper towel, rubbed it on the glass in circular motions, then I rinsed with vinegar water (anything that would clean the paste off should work). and dried thoroughly. The glass is sparkling!

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By Mary

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By 4 found this helpful
September 25, 2015

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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By 2 found this helpful
January 7, 2014

Use shower cleaner, a green scrubbie pad, and water.

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By 1 found this helpful
April 1, 2015

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.

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By 2 found this helpful
January 22, 2015

To remove hard water spots from glass, you'll need:

  1. glass cooktop cleaner
  2. non scratch scrubbing sponge
  3. wet rag
  4. microfiber towel

First off let me say that nothing else worked. I tried everything from glass cleaner with vinegar to straight vinegar. I even tried Scrubbing Bubbles (as found here on this site), but nothing worked. Then the light bulb! I grabbed the above listed items and tried one window - beautiful.

How to: pretty straight forward - pour cooktop cleaner onto non scratch scrubbing sponge (I used Weiman cooktop cleaner and a Weiman scrubbing pad - red). Work in a circular motion covering the window. Use the wet rag to wipe clean the edges of the window frame. Buff the window with the microfiber towel. Presto!

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By 0 found this helpful
May 20, 2014

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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By 0 found this helpful
August 17, 2013

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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Questions

Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

By 0 found this helpful
June 26, 2011

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

Answer Was this helpful? Yes

Answers

June 27, 20110 found this helpful
Best Answer

I use a squeegee to clean my windows, no water left on them to spot. Would that solve your problem? I just use Dawn or Mr. Clean in the water, and clean the outside windows with a long handled squeegee, such as you use for washing car windows. I have one with an expandable handle to reach my windows that are on the upper level.

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June 27, 20110 found this helpful
Best Answer

If you can take the windows off the track and get them on a level surface, then use the thick Lime Away on the windows, letting it sit for about 10 minutes, not touching the aluminum sides, then this should take care of your problem. You may also need to use a green scrubber, like what some use for pots and pans. Please try to protect your hands while using this and try not to breathe any fumes from this product.

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June 28, 20110 found this helpful
Best Answer

A scratchy and a rag with clear vinegar will do the trick.

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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
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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June 11, 20130 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

Answer Was this helpful? Yes

Answers

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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July 4, 20110 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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Answers

July 5, 20110 found this helpful

I would try on one of the windows the CLR in a more concentrated form, not diluted down as much. Hopefully your window isn't etched by the chemicals at which time most nothing will help. Good luck. Linda

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July 6, 20110 found this helpful

I used to make my own window cleaner from a "recipe" I got in a magazine years ago. It contained equal parts;

A)Water

B)Parafin Oil (Kerosene)and

C)Methylted Spirits (Denatured Alchol).

It worked great at cleaning off "normal" dirt and grime and left a wonderful shine but I don't know if it would work for you.

Hope you find a solution.

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July 6, 20110 found this helpful

I had a fountain near our front door glass side panel. The water stains were terrible. Tried several products. Clear Vinegar did the trick when all was said and done. Try it with a green scratchy pad..

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July 6, 20110 found this helpful

I, too, think that either full strength vinegar or full strength CLR will work. If these are just hard water deposits, an acid will remove them. Do not dilute it.

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July 7, 20111 found this helpful

I am not sure using CLR would be good for the environment, but as long as you keep it off the ground and wear gloves so you are protected... I can also suggest a razor blade to remove any remaining film/crust from hard water stains.

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By 0 found this helpful
February 13, 2011

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

Answer Was this helpful? Yes
February 14, 20110 found this helpful

Try a Magic Eraser on one, and you may be able to get the build-up off. You will probably need to follow up with Windex or another glass cleaner, but hopefully they will do the trick.

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February 14, 20110 found this helpful

You could try using a window cleaner called Invisible Glass. You can find it in the automotive section of most supermarkets or of course at auto stores. This has taken a lot of tough gunk off of our windows.

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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, 20110 found this helpful

How do I remove hard water spots from glass?

By Barbara G.

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Answers

August 8, 20110 found this helpful

Vinegar or CLR.

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By 0 found this helpful
April 6, 2010

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 1, 20130 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 5, 20110 found this helpful

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

By Debbie

Answer Was this helpful? Yes
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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By 1 found this helpful
November 10, 2010

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.

Carol

Answer Was this helpful? 1
November 13, 20100 found this helpful

Vinegar. I use it in my dishwasher and on my stainless steal sink. What a difference!

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By 0 found this helpful
October 4, 2015

How do I get lime off windows?

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March 10, 20150 found this helpful

After using a siding cleaner last summer I have noticed what appears to be window streaks. It looks like a trail of water has run down the window. Any ideas on how to remove these?

By Robert

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February 5, 20150 found this helpful

How do you remove water marks on the exterior side of house windows?

By Dave

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September 25, 2013

There are so many Scrubbing Bubbles products - which one do you use with the fine steel wool?

By janie

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July 29, 20130 found this helpful

I have parked my car below a water tank. Once the water tank filled; the extra water will fall on the car. So salt water deposited on my car. How do I clean salt deposits off my car?

By N Senthil

Answer Was this helpful? Yes

Archives

ThriftyFun is one of the longest running frugal living communities on the Internet. These are archives of older discussions.

November 6, 20100 found this helpful

I have water marks on my windows and can't seem to get rid of them. There is also a substance that I think is paint, but I am not sure. I have tried vinegar window cleaners, but with no results. I would appreciate all ideas. I just moved into this house and am a fanatic about clean windows .

Elizabeth from Santiago, Chile

Newspaper and Alcohol

I have used newspaper and a sprayer full of alcohol or alcohol and water with excellent results to get smoke haze off the inside of car windows and smoke haze is hard to remove! It should work on the windows, or try vinegar and water instead. As for the paint, get a widget; hold the blade at about a 45 degree angle to the glass and push it toward the paint dots, should scrape them right off. Just be careful!

By purrplekat

Doobie Pad

I had something that sounds similar on my windows and had to resort to a Doobie pad. It's a nylon scrubber with a sponge inside. I used various window cleaners and just scrubbed until all the spots were off then cleaned as usual with clean cloths. I don't like using newspapers, but many people swear by it.

By Glenn'sMom

Comment Was this helpful? Yes

July 13, 20100 found this helpful

How do I get hard water stains off a window? The sprinklers hit it and there is a mark.

Karen from Florida

Vinegar

I just used the pure vinegar on my windows and it worked great! I have been living here, in the Twin Cities area, for two years with cloudy, water spotted windows. Thank you for the tip!

By Michelle

Colgate Toothpaste

I just tried Colgate toothpaste (the white kind) and it worked great. Squeeze a little on a paper towel and add a little water. Apply it as if you were waxing a car. Then clean it off with window cleaner. Perfect results.

By Chris

Bring-It-ON

Try Bring-It-ON water spot remover. It's a paste that you wipe on, leave on for a few minutes to dissolve the minerals, and wipe off. Invented by a gal that got tired of trying things that didn't work!

By donrowlett

Tekon "b"

I called my brother that works in a glass shop and he told me to use Tekon "b." I tried it on my glass windows and it removes the waters spots, and the windows look good. It's supposed to last over a year without reapplying. I swear this product is good. It works like a charm. I lightly clean the windows with a mix of 1 part rubbing alcohol and 4 parts water for maintenance.

By Sandy

"Hot Sauce"

We use this stuff that we use on our boat, it's called "Hot Sauce." It's kind of expensive, but worth it. Not one window or shower door has hard water spots. It's also meant for fiberglass, so it won't damage your showers.

By Amy S

Glass Stove Top Cleaner

I used glass stove-top cleaner. It worked great.

By Linda

Vinegar

I live in Las Vegas, NV and the water here is very hard. The sprinklers had sprayed my brand new sliding doors and the water spots covered the complete bottom areas of both doors. I read this page and decided on the vinegar w/water solution. Together with a Magic eraser and scrubbing, the spots were gone! Amazing something so simple! I had tried Windex, shower cleaner, and nothing. It did take a couple of applications of the vinegar solution, but it was well worth it! Happy cleaning.

By Carlota

Stove Top Cleaner and a Brillo Pad

I used glass oven top cleaner and a Brillo pad. Wish I had known about this trick a long time ago.

By Ted

Whink

I work on a private yacht, therefore spots are a common thing with all the salt water/negligent crew previous to me. Obviously the darn thing has to look perfect so here's my secret:

Use Whink. I put some on a rag and rub it in a circular motion on a 12" by 12" square. I rinse and soap once a square is done and keep going. It's important to rub it good so it looks even because at first whink will sort of stain the window, so rub in well until it looks even (elbow grease needed here). Once the whole window is done, soap it again, dry and put two coats of rain x on it.

By David

Vinegar Worked

Tried elbow grease, various window cleaners to no avail. Used full strength white vinegar and they were instantly gone.

By ESL Barbara

"SCOTCH BRITE Cook Top Cleaner."

My wife recently (April 2010) bought a box (about the size of a milk carton) of a product called "SCOTCH BRITE Cook Top Cleaner." It consists of a pad with an ergonomic handle and 6 pre-moistened pads that attach to the bottom surface of the pad, almost like Velcro. But you can use both sides of each pad. And you'll find they go a long way.

Here's the process:
1) Clean the window with regular window cleaner to get regular surface dirt off.
2) Apply the SB Cook Top Cleaner using the provided handle. You'll have to apply some elbow grease, but not nearly as much as the steel wool technique requires. It has a flat pad, so it works great on house windows but I believe it will work on curved car windshields as well.
3) The SB pads leaves an oily film behind, so you'll need to clean your windows a second time to remove that film.

By recrem

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March 23, 20100 found this helpful

There have been a lot of great answers for how to clean shower glass, but I'm concerned about how some of these suggested cleaning agents will react with rubber and auto paint. So I want to ask what people have found effective and safe for getting rid of hard water stains on auto glass. Thanks.

Daniel from Ocala, FL

Coca-Cola

Try a can or two of Coca-Cola poured directly over the windshield. Wash the car afterward just to be safe. I have done this several times to no adverse effects.

By Dedeswrkshop

Hand Sanitizer

Use hand sanitizer. The spots will come right off and it won't hurt car interior. I use this on my car interior, steering wheel, and dash.

By ashleybunkin

MX-7

I live in Hawaii and used a product called MX-7 (for glass) on an old truck that had years of hard water spot buildup on all the exterior glass. It took the hard water spots off with little elbow grease. When my son bought a place in Las Vegas a year ago, I looked all over the valley for this product but couldn't find it. I finally found it at one of the local hardware stores (Ace). They just started carrying it.

By Russ808702

Comment Was this helpful? Yes

October 22, 20060 found this helpful

How do you remove hard water spots from windows?

Manette from Park City, UT

Lime Away

When I would help my uncle clean his outside windows they would be covered in hard water because his sprinklers were constantly hitting them when he watered. No matter what he tried nothing seem to work until I tried good old Lime Away and the problem was solved.Use old newspapers and the spots should disappear,you may have to do this a couple of times if the spots are really caked on like my uncles were as his windows got a lot of the sun and the spots were baked on.

By celticwench

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August 25, 20060 found this helpful

At my model home, the irrigation system sprays the windows and the storm door on the front door. They are all covered with hard water stains.

Comment Was this helpful? Yes
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