Foggy Windows & Window Problems
Foggy windows? Seal failure? Drafty windows? Understand what's causing your window problem and find the right solution — repair, glass replacement, or full window replacement.
Not Every Window Needs to Be Replaced
Many companies only offer full window replacement. At Go-Green, we evaluate your windows and recommend the best solution for your home — whether that's repair, glass replacement, or full replacement.
This approach can often save homeowners hundreds to thousands of dollars.
Common Window Problems & Solutions
Find your window problem below to understand what's causing it and what your options are.
Foggy Windows Between Panes
Moisture or condensation trapped between the glass panes of a double or triple pane window. This is the most common sign of a failed window seal.
Seal failure allows moist air to enter the space between the panes. As temperatures change, moisture condenses on the inner glass surfaces.
Window Seal Failure
The airtight seal around a double or triple pane window has broken down, allowing air and moisture to enter the space between the panes.
Seals deteriorate over time due to temperature cycling, UV exposure, and age. Most window seals last 10–20 years before failing.
Drafty Windows
Cold air is entering around the window frame or through gaps in the weatherstripping. Your heating bills may be higher than they should be.
Worn weatherstripping, settling of the window frame, or damage to the window unit can all allow air infiltration.
Condensation on Window Glass
Water droplets or frost forming on the interior surface of your windows, especially in winter.
Interior condensation is usually caused by high indoor humidity, not a failed window seal. Exterior condensation is normal. Condensation between panes indicates seal failure.
Cracked or Broken Glass
A crack or break in one or more panes of a double or triple pane window.
Impact damage, thermal stress, or manufacturing defects can cause glass to crack or break.
Old or Inefficient Windows
Windows that are old, drafty, or single-pane that are significantly increasing your energy bills.
Older windows lack the energy efficiency of modern double or triple pane units with low-E coatings and inert gas fills.
Calgary's First Foggy Window Repair Company
Fog-Out Window Solutions has been repairing foggy windows in Calgary since 2004. We restore moisture-filled windows for up to 75% less than the cost of replacement — done in 30 minutes from outside your home.
LEARN ABOUT FOGGY WINDOW REPAIRWindow Problem FAQs
Can foggy windows be repaired?
Yes, in many cases. If the window frame is still in good condition, the foggy glass unit can be repaired (defogged) or replaced with a new sealed unit — without replacing the entire window. This can save homeowners hundreds to thousands of dollars compared to full window replacement.
Why do windows get foggy between the panes?
Foggy windows are caused by seal failure. Double and triple pane windows have an airtight seal around the glass unit. When this seal fails, moist air enters the space between the panes. As temperatures change, the moisture condenses on the inner glass surfaces, creating the foggy appearance.
What is a sealed unit?
A sealed unit (also called an insulated glass unit or IGU) is the glass assembly inside a window frame. It consists of two or three panes of glass separated by a spacer bar and filled with argon or krypton gas. The entire assembly is sealed airtight. When the seal fails, the unit needs to be repaired or replaced.
How much does it cost to repair foggy windows in Calgary?
Foggy window repair (defogging) typically costs $150–$295 per window. Sealed unit replacement typically costs $300–$700 per unit depending on size. Full window replacement starts at approximately $2,000 per window. In many cases, repair or sealed unit replacement is the most cost-effective solution.
When does a window need to be fully replaced?
Full window replacement is recommended when the window frame is damaged, rotting, or warped; when multiple seals have failed in the same window; when the window is very old and no longer energy efficient; or when the window style or size needs to change. Our team will assess your windows and recommend the most cost-effective solution.
How long does foggy window repair take?
Foggy window repair (defogging) typically takes about 30 minutes per window and is done from outside your home — no need to remove the window or disrupt your interior.
Not Sure What's Wrong With Your Windows? We'll Tell You — No Pressure.
Our team will assess your windows and recommend the best solution for your home and budget — repair, glass replacement, or full window replacement. No pressure, no obligation.