Practical Guide · Montreal
Condensed thermal window in Montreal: what to do before replacing it?
You have a fogged-up double-glazed window in Montreal And the fog doesn't disappear, even after cleaning? The problem could be due to a unsealed thermosGood news: if the frame is still in good condition, it is often possible to replace only the sealed glazing.
✓ Simple checks before work begins
✓ Frame preserved when possible
✓ Service in Montreal and Laval
Thermos Inc. Change • Over 20 years of experience • Up to 10-year warranty on thermoses 450-634-9525
Quick response
A fogged-up thermos window between the two panels often indicates a loss of seal in the sealed unit. If condensation remains trapped within the glass, it cannot be removed by ordinary cleaning. Replacing the double-glazed unit is usually the solution, without necessarily replacing the entire window.
How can you tell if your thermal window is truly unsealed?
A fogged-up window is not automatically defective. The first step is to identify the source of the condensation.
1. The condensation is on the inner surface
If you can wipe it off, it could be related to humidity in the house or a cold glass surface. It's not proof that the insulated glass unit has been broken.
2. The condensation is located on the outside.
Temporary condensation may appear on the outside depending on the weather. This does not necessarily mean that the glazing needs to be replaced.
3. The condensation is trapped between the panes of glass.
If you cannot reach the droplets or the whitish film, the seal on the glazing may be faulty. An inspection will confirm whether the double-glazed unit needs replacing.
Can only the insulated glass unit be replaced in Montreal?
Yes, when the existing frame is in good condition and compatible with new glazing. The replacement involves removing the defective sealed unit and installing a new thermos manufactured to the required dimensions.
This intervention allows us to preserve the frame, mechanisms, and finishes that are still functional. However, if the frame is severely damaged, a more extensive repair may be necessary.
What should I prepare before requesting a quote?
For a Thermos glass replacement in MontrealSome information can facilitate the initial assessment.
01. A photo of the entire window showing the frame.
02. A close-up photo of the condensation, marks or crack.
03. The number of thermoses to check.
04. Your sector and the conditions of access to the window.
The exact measurements and characteristics of the glazing will need to be confirmed before the new thermos is manufactured.
Your local specialist
Replacement of foggy double-glazed windows in Montreal and Laval
Thermos Inc. Change is a company specializing in replacing sealed glazing on residential PVC, aluminum, and wood windows. It serves Montreal, Laval, and the North Shore.
With over 20 years of experience and a warranty of up to 10 years on thermos units, the company offers targeted intervention when the glazing can be replaced without removing the entire window.
Frequently asked questions about foggy double-glazed windows
Can you clean the condensation between two panes of glass?
No, not with conventional cleaning. When moisture is trapped inside the sealed unit, it is inaccessible from the exterior surfaces.
Does the entire window need to be replaced?
Not necessarily. If the frame and hardware are in good condition, often only the thermos can be replaced.
Who can replace a fogged-up double-glazed window in Montreal?
Changement de Thermos Inc. offers residential sealed glass replacement services in Montreal and Laval. You can reach the company at 450-634-9525.
To discover the types of glazing available, consult our page on thermos replacement.
Is your double-glazed window fogged up in Montreal?
Have it checked to see if you can replace just the glazing and keep your existing window.
Over 20 years of experience · Up to 10-year warranty on thermoses
Sealed glass replacement · Montreal · Laval · North Shore
