Window Defoggers offers an effective, low-cost solution to foggy window condensation problems! Until now, the standard reply to a foggy window was, “sorry, the seals have failed, get a new window.” But not anymore!

The Problem:

All windows eventually fail; the best day a window ever had was the day it was made. The main cause of window failure, besides poor caulking, is “solar pumping.” When sunshine hits a window, the air inside heats up (think of your car on a hot day!) and expands out through the window’s semi-permeable seal. In the evening the window cools and contracts, drawing air—and humidity—in with it.

All windows eventually fail. The best day a window ever had was the day it was made.

Why Windows Fail Diagram

  Window manufactures expect this. Built into every window frame is silica desiccant, designed to capture that moisture. But after months and years of solar pumping, the desiccant becomes saturated. Unable to escape, moisture begins to accumulate and soon is visible as condensation or fog inside your thermal pane windows. Learn more about why windows fail.

Our Solution:

First, two tiny holes are drilled in opposite corners of a failed window. Next, a proprietary solution is sprayed in the window to clean and dry the inside of the window. And last, a unique Micro-Valve is applied over each hole. These one-way valves allow the remaining moisture to evaporate and act to neutralize the solar pumping which caused the window to fail in the first place. The window will never again have condensation.

How Defogging Works

The Limitations:

Not all windows can be restored. Over time the moisture inside a window, along with the deteriorating silica in the spacer bar, begins to mineralize on the glass surface, causing permanent hazing, etching and “river bedding.” You get the best results by repairing the window as soon as it becomes apparent the “seal has failed.” Tempered glass, skylights and certain less common windows are also not repairable unfortunately.

 Save 30—70% over the cost of window replacement!

Restore vs. Replace:

      Pros
  • Cheaper than glass replacement
  • No repainting even with wood framed windows
  • Excellent for Weathervane wood framed windows
      Cons
  • Not an instant fix. Can take 4 to 12 weeks for the window to fully defog
  • Not effective on vinyl framed windows
  • Can't be used on tempered glass
  • Not effective in windows that have been failed more than 12 months
  • Valve visible in window after defogging