When to Worry About Condensation On Your Windows

Condensation. Such a dreaded word. We all worry about moisture on our windows because it can lead to so many more problems down the road, such as mold, mildew, and more.

As the year approaches the colder seasons, condensation becomes an increasingly normal thing to see every morning and even throughout the day as well.

At what point should you worry about condensation on your windows? Is it normal? Do you need to replace your windows?

We’ll answer all of these questions, and hopefully your anxiety will be eased by the time you’re done reading.

Is Condensation on Windows Normal?

You’ve probably seen condensation on water bottles or doors. That’s normal, but what about windows?

Condensation on the Outside of Your Home

exterior condensation
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It depends on where the condensation is coming from. Condensation on the outside of your home is completely normal.

It’s when the outside air hits your window. If your window is colder than the dew point, then moisture will form.

In simple terms, dew point is when water goes from being a gas to a liquid. Unfortunately, the dew point isn’t just a set number that you memorize like the temperature at which water turns to ice.

Dew point is based on relative humidity and the current temperature of the air. Here is a convenient dew point calculator by the University of Miami. To figure out the dew point, just enter the current temperature on the top line and the relative humidity on the last line. Press calculate, and the dew point number should appear.

Condensation on the Inside of Your Home

interior condensation
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Indoor condensation is when there is moisture in between the two panes of your windows, if you have double-pane windows.

Condensation inside your windows is something to be concerned about. Why? This means that the moisture is stuck in between the glass, and you can’t wipe it off.

There are many causes for this, such as leaky air seals or warped window frames. It could also be caused by relative humidity levels that are too high for the inside of your home.

Ideally, your home’s relative humidity should be between 30% and 60%, never exceeding 60%.

Here are ways you can prevent and reduce condensation in your windows. Try these methods before considering new window replacements.

If the condensation exists on the interior side of your home, and NOT in between your window’s glass panes, this is also normal. This means that your windows are working properly.

Your windows are keeping your home warmer than the outside temperature. When the warm air of your home hits the cold surface of your window, it’ll turn into moisture. This happens because you have such a large temperature difference between the inside of your home and the outside.

Should New Windows Have Condensation?

window condensation
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Whether you have new windows or old windows, the most important question to answer is:

Where is the condensation located?

As we mentioned above, condensation on the inside of your home is normal. Condensation on the outside of your home is also normal.

However, condensation in between your window panes is NOT normal. This means your new windows could have been installed wrong or faultily.

There is a possible air seal that’s not airtight, and this causes the air to turn into moisture inside of your window.

If your new windows have condensation within them, reach out to the people who manufactured and installed your windows. It’s within their warranty to fix problems such as leaky air seals, especially if they’ve been installed fairly recently.

How to Reduce Condensation on Windows

We’ll go over a few of the most common ways to reduce condensation. However, this guide is much more thorough.

Use Your Ceiling Fans

ceiling fan direction

Moving air around the rooms in your home helps keep the air fresh. Even if it’s cold, you can turn your fans clockwise to actually distribute the warm air down.

In the summer time, turn your fans to counter clockwise.

Use Your Exhaust Fans

When cooking or showering, turn on your exhaust fans.

Cooking, especially heating up water, brings more moisture into the air. Use your exhaust fans to lead this moisture outside of your home.

Another thing you can is to open the windows in your kitchen and bathroom and keep them open for 30 minutes after you finish using that room.

Get a Dehumidifier

If relative humidity is your issue, then a dehumidifier will fix that without being too expensive. You can use it in any room, and they vary in pricing too.

Keep Your Interior Doors Open

Closing your doors can trap air within one room. That makes the air more stale and more likely to accumulate moisture.

Keeping your doors open encourages better airflow. When you combine this with using your ceiling fans, you can circulate the air around your home so much better.

Do You Need New Windows?

installing new windows
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You’ve done everything to prevent condensation, but it’s still there. Does that mean you need new windows?

New windows are a serious investment and can cost tens of thousands of dollars for a full house window replacement. If you’re going to spend that much, you’ll want it to be worth it.

Condensation is a tell-tale sign that the relative humidity inside of your home could be too high.

Your home’s thermostat should come with a humidistat that tells you your home’s relative humidity as a percentage.

A high relative humidity above 60% can lead to a boatload of problems such as transform your home into a breeding ground for mold. Mold and mildew can cause a variety of health problems later on, such as allergies and infections.

Make sure you’ve done everything you can to prevent condensation inside of your home. Here is a list of methods and things to try to reduce condensation.

If you notice condensation in combination with mold around your window frames specifically, it’s time to seriously consider a new window replacement.

It’s Important to Get a Professional Contractor

If you decide that it’s time for you to get new windows for your house, consulting a contractor can save you a lot of money.

You get to consult and talk to a professional who can verify whether or not you actually need the new windows in the first place. Maybe you just need a window repair of 2-3 windows instead of having to replace them all.

In addition, the quality of the work will be high and come with warranties for labor and materials.

It’s ideal to get multiple estimates and opinions from different contractors so you can get the full picture on your situation and the best price too.

You wouldn’t want someone to replace your windows just to find out that they did a poor job. Getting a professional will let your mind rest easy for many decades to come.

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