The windows throughout your home are a portal to the outdoors, a way to let 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 plastered in a layer of condensation.

Not only are windows coated in condensation unappealing, they also can be evidence of a more serious air-quality deficit within your home. Luckily, there’s multiple things you can attempt to resolve the problem.

What Causes Sweating along Windows

Condensation on the interior of windows is produced by the humid warm air in your home hitting the colder surface of the windows. It’s particularly prevalent during the winter when it’s much colder outside than it is in your home.

Inside Moisture vs. In Between Panes

When dealing with condensation, it’s necessary to recognize the distinction between moisture on the inside of your windows in comparison to moisture in between the windowpanes. One is an air-quality issue and the other is a window issue.

  • Moisture within a window is created from the warm humid air throughout your home collecting on the glass.
  • Existing moisture you notice between windowpanes is formed when the window seal stops working and moisture gets in between the two panes of glass, and by then the window needs to be repaired or replaced.
  • Condensation on the inside of the windows isn’t a window issue and can instead be fixed by changing the humidity inside your home. Different things generate humidity throughout a home, such as showers, cooking, bathing or even breathing.

Why Condensation on Windows Could Mean Trouble

Though you might think condensation in your windows is a cosmetic issue, it can be indicating your home has higher humidity. If that’s the case, water may also be collecting on window frames, cold walls or other surfaces. Even a slim film of water can cause wood surfaces to mildew or rot over time, promoting the growth of mildew or mold.

How to Decrease Humidity in Your Home

Fortunately there are several options for removing moisture from the air in your home.

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

If you don’t have a humidifier going and your home’s humidity level is high, consider installing a dehumidifier. While humidifiers put moisture inside your home so the air doesn’t get too dry, a dehumidifier extracts excess moisture out of the air.

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

Whole-house dehumidifier systems are controlled by a humidistat, which permits you to specify a humidity level precisely like you would select a temperature on your thermostat. The unit will begin running instantly when the humidity level overtakes the set level. These systems work with your home’s HVAC system, so you will want to contact skilled professionals for whole-house dehumidifier installation .

Other Ways to Lower Condensation on Windows

  • Exhaust fans. Adding exhaust fans in humidity hotspots such as the bathroom, laundry room or above the kitchen range can help by pulling the warm, moist air from these spaces out of your home before it can increase the humidity level across your home.
  • Ceiling fans. Running ceiling fans can also keep air circulating inside the home so humid air doesn’t get trapped in one place.
  • Opening up window treatments. Throwing open the blinds or drapes can lower condensation by stopping the damp air from being trapped against the windowpane.

By decreasing humidity inside your home and moving air throughout your home, you can take advantage of clear, moisture-free windows even during the winter.