Schedule a Free Consultation

Dealing With Hard Water Stains on Your Windows

Have you ever noticed hazy stains on your windows that don’t seem to come off easily? This indicates your local weather has hard water, which is a mixture of water and a high content of minerals, such as magnesium and calcium. Hard water makes it a bit difficult to clean off on some surfaces, especially when it evaporates from a glass surface like your windows. 

Water Stains on Your Windows

Here’s how to clean hard water stains.

Removing Hard Water Stains

Hard water that evaporates from your windows will leave spots known as calcium deposits or limescale. These deposits won’t be noticeable at first and can be easy to clean off as long as they don’t sit on the glass surface for too long. Otherwise, leaving them under the sun for some time makes them difficult to remove. The accumulation of these deposits will eventually give your windows a rough texture and unpleasant haziness.

One effective method to get rid of the hard water stains involves preparing a mixture of half water and half vinegar. A towel must be soaked in the solution and then pressed onto the rough stains of your affected windows for about a minute or two. Keep repeating this process until the stains are cleaned off the surface.

Upgrade Your Windows Today

If you’ve been having hard water stain problems on your windows for a long time, then it may be time to upgrade to better-quality windows. Our top-of-the-line energy efficient windows are made with materials that ensure they’re easier to clean. This is because our window products feature a self-cleaning titanium dioxide exterior coating that prevents watermarks!

The titanium dioxide coating that we use consists of a mostly white and powdery titanium compound. It’s essentially the white-in-white paint and what’s normally used to give that shine on paint or toothpaste. But we only apply a very thin layer of coating on our windows, so it’s essentially transparent on the glass surface. This coating hardly affects the amount of light passing through the glass as well, reducing it by only about 5%!

As a top window installer in the area, Renewal by Andersen® of Southwest Missouri is your best choice for the job. You can reach us at (417) 268-9301, or you can contact us online through our convenient form.


"Renewal by Andersen windows experience has been great. From my initial call to Andersen on inquiry about their windows and doors through the order and installation process everyone I’ve dealt with has been great. Great process, great product and most of all great people to work with. Thanks."

Kevin Sweetin
Feb 28, 2024

"I just bought my first house. My patio sliding door was rotten. So, I needed it to replace it. Renewal by Anderson of Southern Missouri listened to what I wanted and delivered it. They did a fantastic job of installing and cleaning up afterwards. They did it even in freezing rain that day I was scheduled to have it replaced. They even had a follow-up to check things out and do the touch ups. I'm amazed at there work. Great job Renewal by Anderson."

DKay Mikel
Feb 9, 2024

"On Feb 1,2024 my husband and I selected Renewel by Andersen for windows for our entire house. It made our house more beautiful with the picture windows. Made the outside more attractive, and on the inside. We did 14 windows. We had 4 men come to do the job in 1 day And they were very friendly, efficient,fast and cleaned up inside and outside perfectly. And most importantly we noticed the heating furnace runs less,therefore saving us money on our gas bill. We live in SW Missouri. We recommend anyone who wants to replace windows in their home to pick Renewal by Andersen. Sincerely, Darius and Nancy Durman"

Nancy Durman
Feb 7, 2024

View All Reviews