What is a Sealed Unit?
A sealed unit is the glass or glazing part of a window that sits inside the frame. The sealed unit usually consists of two or three panes of glass, separated by a vacuum or gas-filled pocket of air that helps with insulation and reduces heat transfer.
Sealed Units have a high insulation value, designed to keep your home cooler in the summer and warmer in the winter. They put in the work, so your furnace or air conditioner can do less. Sealed units can also be treated with low-e coatings that block sun to reduce ultraviolet light from coming into your home. This coating also helps with insulation.
When to Replace a Sealed Unit?
1. Window Fogging
Replacing sealed units are a cost-effective and eco-friendly option. If you begin to notice fogging between the panes of glass and your windows are less than 15 years old and still, in good condition, they are likely eligible for sealed unit replacement. Replacing just the sealed unit, instead of the entire window will save you money in the long run.
2. Broken Windows
Windows with broken glass or seal should also be replaced. It is not just an aesthetic issue, but when the airtight seal is compromised so will your heating bill. In this case, replacing the sealed unit will make your home safer and more energy efficient.
When It’s Time For a Full Window Replacement
Sometimes replacing the sealed unit is not enough and you will need a full window replacement. Here’s what to look out for:
- If you only have single pane glazing and want to upgrade to more energy efficient windows
- If your current window frames are damaged, warped or rotten
- If you begin to notice drafts or cold air near your windows
Ready to replace your sealed unit? Click here to request a quote.