Window Glass Repair: How to Eliminate Condensation Inside Windows

Window condensation is bad news. It can lead to costly repairs and the unhealthy growth of bacteria, mold and mildew (you’ve probably noticed those little black dots on windows or in the corner of rooms). 

Taking preventative steps to eliminate moisture condensation within and outside glass windows is critical. If not, you’ll need to call in experts for glass replacement. 


In today’s post, Springfield Glass Company, a glass installation contractor in Springfield, Missouri, explains how to get rid of condensation inside windows.


Worst Case Scenario for a Window with Moisture Buildup 

If the level of humidity is well above 50 percent and the window’s moisture really gets out of hand, wet rot can start setting into the frame. Rot can affect materials like wood, drywall or insulation. If this happens to your window, replace the entire frame. 

Vinyl, aluminum and fiberglass frames may not rot like wood, but unhealthy, unbreathable mold growth can definitely set in. You want to avoid that. 

On the other hand, if you find there’s just a little bit of moisture coming through part of the window, just replace the window pane. It’s a cheaper, quicker fix. 


What Causes Condensation on a Window?

Condensation on a window is really common in the winter. That’s when temperatures are vastly different between the outside and inside of your home. 

Condensation outside of the window is not much to worry about. But once it’s between the glass panes, that’s where things get problematic. This happens when a point in the edge seal of the window is compromised — moisture leaks in between, giving it that foggy, milky look.

To fix it, new sealant needs to be added in between the glass and the frame. If it’s an older home, the root cause may be that you have a low-grade sealant that has worn down over time. 

Let’s say it’s not fixed and it’s just left alone. Once a large amount of water has been left to settle in the window frame, you’ll have rot on your hands. You’ll need a full frame replacement at that point. — Costly? Yes. — Avoidable? Absolutely. 


How to Get Rid of Condensation Inside Windows

Desiccant (a drying agent).

Desiccant serves as a great window condensation absorber. When double-paned glass is manufactured, desiccant is inserted in between the two panes to help deter moisture buildup. It’s also in other materials. 

You’re probably familiar with these little white bags that say “do not eat” on them. They’re sometimes in new shoes and electronics products. 

Well, these are filled with the same moisture-absorbing material that gets put in between window panes to avoid water building up on the inside of the double-paned glass: desiccant. 

You can utilize these moisture-absorbing materials in their various forms to get rid of condensation on your glass. 


DIY Tips on Preventing Moisture Build-Up

  • Open your windows. Opening a window releases all of that moist, warm air trapped inside. Better yet, it doesn’t cost a thing. 
  • Purchase a dehumidifier. They extract moisture from the air and keep it off your windows. Also, turn off any dehumidifiers (which goes without saying).
  • Replace your plants. Plants give off moisture. But some plants absorb humidity, like Peace Lily, Boston Fern or orchids. Place these near the window.
  • Use a moisture eliminator. Moisture eliminators are a cheap option. These dry little beads give a fresh smell and protect against condensation buildup. 
  • Ventilate your home. Use bathroom or kitchen fans when you can. Moisture can accumulate quickly when cooking or showering.
  • Install storm windows. Pricey, but if you have the money to spend, storm windows are double or triple glazed to protect against the elements. 


How to Get Rid of Condensation on the Outside of Your Window

Condensation on the outside of a window isn’t as serious. But, if it’s not wiped off and left to drip onto the frame’s corners, mold and mildew can still creep up. 

There are plenty of affordable DIY tools you can use to get rid of moisture on the outside of your window: 

Window condensation prevention strip.

These useful strips fit on nearly any window and stop moisture from entering the glass or sill, thus preventing mold and mildew from forming.

Microfiber cloth. 

If the outside of your window has condensation, make it a habit to use a microfiber cloth to remove it every morning. 

Scratch window vacuum. 

If you’re interested in a fancier alternative to a cloth, this tool is a lot like a squeegee with suction capabilities. Just drag it across the condensation window each morning.

Springfield Glass Company Can Help Repair & Replace Your Window

We’re experts in window glass replacement. So whether you need a full-frame replacement, a new glass pane or some updated sealant and weather stripping on your window frame, we can help repair and install residential glass for a competitive rate. Contact us today for an estimate. 

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