Published · Vitrerie Vaudreuil
Find out where the fog is
A foggy window does not always require the same work. Start with one question: is the moisture on an accessible surface or inside the glazing? Without taking the window apart, wipe the accessible indoor surface and see what remains. A photograph from an angle can help show the affected area.
On the surface or between the panes
Natural Resources Canada distinguishes surface condensation from condensation between panes caused by a failed sealed-unit seal. In the latter case, replacing the insulating glass unit is indicated. This observation alone does not mean the entire frame needs replacement.
What Vitrerie Vaudreuil can assess
A sealed unit is the assembled insulating glass. The frame and opening hardware are separate components. If the frame is in good condition, Vitrerie Vaudreuil can assess replacing the glass unit alone. Mention difficult operation, water infiltration or broken hardware as well: these issues should be assessed separately from fogging.
What to include in your first request
Photograph the whole window and the foggy area. State how many panes are affected, which room they are in and your town. Approximate measurements help describe the project; they are not glass-ordering dimensions. Final measurements and the proposed solution are confirmed on site.
An assessment for your home
Whether your home is in Vaudreuil-Dorion, Hudson or elsewhere in the service area, start by describing what you see. You do not need the exact name of the component. The request helps identify what can stay and what needs attention.
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Frequently asked questions
Do you need to replace the whole window if the glass is foggy?
The whole window does not always need to be replaced: when the frame is in good condition, Vitrerie Vaudreuil can assess replacing the glass unit alone. Fog between the panes points to a failed seal, but this observation alone does not mean the entire frame needs replacement.
How can you tell if the fog is on the surface or trapped inside the glass?
The fog can be checked by wiping the accessible indoor surface without taking the window apart, then looking at what remains on the glass. Natural Resources Canada distinguishes surface condensation from condensation between panes caused by a failed sealed-unit seal.
What information should you prepare before requesting an assessment for a foggy window?
A first request should include a photo of the whole window and the foggy area, how many panes are affected, the room, and the town. Approximate measurements help describe the project, but final measurements and the proposed solution are confirmed on site.
Reference: Natural Resources Canada — Condensation