Condensation appears when warm, moist air meets cooler surfaces, like a cold drink on a hot summer day or your window on a cold winter day. Condensation on your window’s interior can block the view, drip on the floor, or freeze on the glass. If you’re noticing any of these issues, it’s a sign the humidity levels are too high inside your home (30 to 35% is recommended during the winter months). Check your thermostat, as it may monitor the humidity level. If not, you can buy an inexpensive tool called a hygrometer to see your humidity levels.

Here are a few ways to reduce indoor humidity:

• Check your ventilation.
• Use a dehumidifier.
• Turn the humidifier on your furnace down (or off).
• Keep blinds or curtains open during the day.
• Leave ceiling fans on to promote air movement.
• Use an exhaust fan in bathroom areas when showering.

Tip: It's important to note where condensation is appearing. If you notice fog in between the panes of glass on a dual-pane window, it’s a sign of seal failure and an indication that you need to replace the window.