Sealed Unit
Replacement Calgary
Replace just the glass without removing the entire frame. Fast, cost-effective, and backed by a 20-year warranty. The smart choice when your frame is still in good condition.
What is a Sealed Unit Replacement?
A sealed unit (also called an insulated glass unit or IGU) is the glass portion of your window — two or three panes of glass sealed together with an insulating gas between them. When the seal fails, moisture gets in and causes fogging.
Instead of replacing the entire window frame, we simply replace the sealed unit — just the glass — in any window or door. This eliminates the cost of a full frame installation and is typically done in under an hour per window. Your existing frame stays in place.
When Sealed Unit Replacement Is the Right Call
Not every window problem calls for a full replacement — but these four situations are clear signs that a new sealed unit is the right solution.
Cold Glass in Winter
If your window glass feels very cold to the touch in winter, the insulating argon gas has likely escaped and the unit is no longer performing efficiently. Replacement restores full insulation.
Rising Heating Costs
Failed sealed units lose their insulating properties, forcing your furnace to work harder. Replacing the glass unit immediately restores energy efficiency.
Broken or Cracked Glass
If the glass itself is physically damaged — cracked, chipped, or shattered — a repair is not possible. The sealed unit must be replaced entirely with a new custom-ordered glass unit.
Severely Deteriorated Seal
When the seal has completely failed and the frame is still in good condition, replacing just the glass unit is significantly more cost-effective than a full window replacement.
Repair vs. Sealed Unit vs. Full Replacement
We'll always recommend the most cost-effective solution for your situation — not the most expensive one.
Foggy Window Repair
Sealed Unit Replacement
Full Window Replacement
Not sure which option is right for you? We'll assess your windows for free and give you an honest recommendation.
BOOK A FREE ASSESSMENTGet a Free Sealed Unit Replacement Quote
We'll assess your windows and provide a clear, accurate quote — no pressure, no upselling. Serving Calgary, Chestermere, Airdrie, Cochrane, and surrounding areas.