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Vitrerie Vaudreuil · Residential glass

Foggy glass: replace the sealed unit or the whole window?

Surface condensation or moisture between panes: what to observe before requesting an assessment in Vaudreuil-Soulanges.

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.

Reference: Natural Resources Canada — Condensation

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