The windows throughout your home are a gateway to the outdoors, a way to draw light in when you appreciate the view of your garden, yard or other surroundings. The last thing you want to see is a sweaty window covered in a coating of condensation.

Not only are windows covered in condensation unattractive, they also can be evidence of a more serious air-quality issue in your home. Fortunately, there’s numerous things you can try to address the problem.

What Produces Condensation on Windows

Condensation on the interior of windows is created by the moist warm air inside your home mixing with the cold surface of your windows. It’s notably common over the winter when it’s much colder outside than it is in your home.

Inside Moisture vs. In Between Panes

When talking about condensation, it’s important to recognize the difference between moisture on the inside of your windows versus moisture in between the windowpanes. One is an air-quality issue and the other is a window issue.

  • Moisture within a window is caused from the warm humid air inside your home condensing on the glass.
  • The moisture you notice between windowpanes is formed when the window seal breaks down and moisture seeps between the two panes of glass, and at that point the window needs to be repaired or replaced.
  • Condensation in the windows isn’t a window problem and can instead be solved by fine-tuning the humidity inside your home. Different things produce humidity in a home, like showers, cooking, bathing or even breathing.

Why Condensation on Windows Can Be Trouble

Even though you might think condensation on the inside of your windows is a cosmetic issue, it could also be indicating your home has excess humidity. If this is in fact the case, water may also be accumulating on window frames, cold walls or other surfaces. Even a thin film of water can encourage wood surfaces to mildew or rot over time, fostering the growth of mildew or mold.

How to Decrease Humidity Throughout Your Home

The good news is there are several options for removing moisture from the air inside your home.

If you have a humidifier running inside your home – whether it be a small unit or a whole-house humidifier – lower it further so the humidity inside your home decreases.

If you don’t have a humidifier active and your home’s humidity level is high, think about purchasing a dehumidifier. While humidifiers introduces moisture in your home so the air doesn’t become too dry, a dehumidifier extracts excess moisture out of the air.

Smaller, portable dehumidifiers can remove the water from one room. However, portable units require emptying water trays and most often service a somewhat limited area. A whole-house dehumidifier will remove moisture across your entire home.

Whole-house dehumidifier systems are controlled by a humidistat, which allows you to set a humidity level just like you would choose a temperature on your thermostat. The unit will start instantly when the humidity level overtakes the set level. These systems coordinate with your home’s HVAC system, so you will receive the best results if you contact qualified professionals for whole-house dehumidifier installation .

Other Ways to Eliminate Condensation on Windows

  • Exhaust fans. Installing exhaust fans in humidity hotspots like the bathroom, laundry room or above the kitchen range can help by pulling the warm, humid air from these spaces out of your home before it can elevate the humidity level across your home.
  • Ceiling fans. Turning on ceiling fans can also keep air swirling inside the home so humid air doesn’t get trapped in one spot.
  • Opening up window treatments. Pulling open the blinds or drapes can lower condensation by stopping the warm air from being caught against the windowpane.

By reducing humidity inside your home and circulating air throughout your home, you can make the most of clear, moisture-free windows even in the winter.