The windows throughout your home are a gateway to the outdoors, a way to let light in while you enjoy the view of your garden, yard or scenery. The last thing you need to see is a sweaty window plastered in a film of condensation.

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

What Creates Sweating along Windows

Condensation on the inner layer of windows is formed by the moist warm air in your home mixing with the cooler surface of the windows. It’s particularly common over the winter when it’s much cooler outside than it is in your home.

Inside Moisture vs. In Between Panes

When discussing condensation, it’s important to recognize the distinction 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 created from the warm damp air inside your home collecting along the glass.
  • Existing moisture you notice between windowpanes is produced when the window seal stops working and moisture gets in between the two panes of glass, and at that point 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. Many things produce humidity in a home, like showers, cooking, bathing or even breathing.

Why Condensation on Windows Could Mean a Problem

Though you might think condensation on the inside of your windows is a cosmetic problem, it can be a sign your home has excess humidity. If that’s 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, promoting the growth of mildew or mold.

How to Reduce Humidity Throughout Your Home

Fortunately there are numerous options for extracting moisture from the air throughout your home.

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

If you don’t have a humidifier running and your home’s humidity level is higher than you prefer, look into purchasing a dehumidifier. While humidifiers put moisture in your home so the air doesn’t become too dry, a dehumidifier pulls excess moisture out of the air.

Smaller, portable dehumidifiers can absorb the water from an entire room. However, portable units require clearing water trays and usually service a fairly small area. A whole-house dehumidifier will eliminate moisture across your entire home.

Whole-house dehumidifier systems are managed by a humidistat, which allows you to set a humidity level just like you would pick a temperature with your thermostat. The unit will begin running immediately when the humidity level surpasses the set level. These systems collaborate with your home’s HVAC system, so you should contact skilled professionals for whole-house dehumidifier installation .

Additional Ways to Eliminate Condensation on Windows

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

By lowering humidity in your home and moving air throughout your home, you can enjoy clear, moisture-free windows even during the winter.