fbpx Skip to main content

The winter months bring with them a number of added tasks and chores for homeowners. Between decorating for the holiday season, clearing snow from the driveway and cleaning sand from the doorway, it’s safe to say home maintenance gets more complicated in the cold.

Window condensation is no exception. Condensation on interior windows is irritating, and can actually cause long-lasting damage to your home. Window condensation occurs when there is an excess of moisture in the house. It happens more often in winter, when the warm air inside the home condenses the moisture on cold windows.


Condensation, left untreated, can rot the wood and moulding that surround windows. Furthermore, condensation doesn’t only affect areas surrounding a window; the moisture and mold that come with condensation can also spread and damage drywall, plaster and flooring.

Here are seven simple tips to keep your windows and the rest of your home safe from the detrimental effects of moisture.

1. Use Storm Windows

Storm windows keep a space between the interior window and the exterior window. The space between the two windows allows the interior one to stay warmer, and reduces frost build-up and condensation. Storm windows can also help reduce your heating bills and make your home more energy efficient during the winter.

2. Add Weather Stripping

Weather stripping stops warm air from leaving your home. If you’re using storm windows during the winter months, weather stripping will stop condensation from occurring on your windows. Weather stripping also improves the energy efficiency of your home.

3. Keep Windows Warm


Condensation will occur if your windows are colder than the air in your home. To keep the surface of your windows warmer, use blinds, curtains or drapes. Raising the temperature of your home slightly will help warm your windows and reduce interior window condensation as well.

4. Use Humidifiers Cautiously

Canadian winters can at times feel dry, leaving us with itching skin and flyaway hair. For this reason, many people use humidifiers to balance the air in their homes. However, this can often upset the moisture balance within a home and cause condensation to occur on interior windows.

5. Use a Dehumidifier

A dehumidifier is a quick, easy way to address excess moisture and window condensation in your home. While dehumidifiers can range from $200-$300, there are also smaller size options that are more affordable in a pinch.

6. Be a Fan of Fans


Every time you shower, cook, or clean, make sure your fans are on. Keeping fans on—rotating in a clockwise direction—will keep the air circulating throughout your home and help push warm air off of the ceiling back down to the floor.

7. Replace Your Windows

In the worst case scenario, condensation and moisture are a problem in your home because of flaws with your current windows. This is a likely scenario if you’ve had the same windows for longer than 20 years.

Window technology has greatly progressed in the past few decades, and Polar Windows are especially designed to perform in extreme climates. If your windows are collecting moisture and condensation despite your best efforts, contact Polar Windows for a free, in-home consultation.