a clean bathroom

Dealing with hard water stains on glass surfaces can be a frustrating challenge for many homeowners. Hard water, containing high levels of minerals like calcium and magnesium, can leave unsightly stains and soap scum spots on glassware, shower doors, windows, and anything else that comes into contact with running tap water. 

While water softeners can help prevent the formation of these hard water stains, tackling existing stains requires a different approach. In the guide, we’ll explore effective methods for removing hard water stains from glass surfaces, restoring clarity and shine to your home. 

What Are Hard Water Stains? 

Hard water stains are mineral deposits left behind when water evaporates, leaving behind calcium, magnesium, and other minerals on glass surfaces. These deposits appear as cloudy white spots or streaks, diminishing the visual appeal of your shower doors, for example, and even your glassware! Over time, hard water stains can become more stubborn and difficult to remove, requiring special attention and cleaning methods. 


Are hard water stains permanent?


How Do I Know if I Have Hard Water Stains?

If you notice cloudy white spots or streaks on your glass surfaces, especially after washing with water, it’s likely that you have hard water stains. You can check if you live in a hard water area by using our hard water map, which outlines areas of the UK, such as Southeast England, that are prone to hard water. 

Other signs you have hard water entering your home include dry and frizzy hair, damaged appliances, and even skin irritation. If you’re still unsure of whether you have hard water in your home, our previous guide below can help. 


6 signs you have hard water in your home


How to Clean Hard Water Stains Off Glass Surfaces

Luckily, there are a number of ways you can remove hard water stains from your glass surfaces:

White Vinegar Solution

Mix equal parts of white vinegar and water in a spray bottle. Spray the solution onto the affected glass surface and let it sit for several minutes. Scrub the stains with a sponge or soft brush, be careful not to scratch the surface, then rinse thoroughly with water and dry with a clean cloth.

Baking Soda Paste

Create a paste by mixing baking soda and water together until it forms a thick consistency. Apply the paste to the hard water stains and let it sit for about 15 minutes. Then, following the previous last step - scrub, rinse, and dry. 

Commercial Cleaners

If you’re really struggling with your hard water stains or simply don’t have the time or energy to clean them yourself, then there’s no harm in asking for help! Commercial cleaners are experts in removing hard water stains from glass surfaces, so letting them do the hard work is perfectly okay. 


How To Clean Glass Shower Doors With Hard Water Stains


Once you’ve removed those stubborn stains, we recommend installing a Kinetico Water Softener to prevent them from returning. Incorporating one into your home can help prevent the formation of hard water stains, preserving the clarity and shine of your glass surfaces. 

To learn more about the advantages of water softeners and explore our range of products, visit our Kinetico store today. It’s time to say goodbye to hard water stains - and hello to crystal-clear glass surfaces in your home!