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Frequently Asked Questions

Fogged Window beforeQ Two glass shops told me that it is not possible to repair my foggy thermal units. They both said that the moisture cannot be removed, and the units have to be replaced. How do I know that your system will work?

A When the Wright brothers claimed that they could fly, people laughed at them.  Unfortunately, many people don’t want to accept progress. Our defogging process has been in use in the Ottawa area for almost 20 years but it is not well known elsewFogged Window Afterhere. 

Q Can all units be restored?

A All standard units can have the moisture removed.  However, if the unit has been wet for a long time, mineral deposits may have formed on the inside glass surfaces. Most of these are removable using our patented process.  If mineral deposits have been on the glass for an extended period they  may have etched the inside surface of the glass.  This is a permanent condition that, so far, cannot be reversed.  Our trained estimators and service personnel will be able to advise you of the condition and repairability of your unit.

Q After you finish doing my glass units, will they stay dry permanently?

A The simple answer is yes; however, our process is a permanent cure, not an instant one.  We use liquid cleaners of various types to clean inside your units and this liquid, together with the moisture already inside the unit, has to vent out before you will have a completely dry unit. Depending on the location of the unit in the home (does it get lots of sunshine for example?) And the ambient temperature, it can take several days, or even weeks to totally dry out. We will indicate to you when we complete the work, about how long we expect it to take.

Q Will my windows look “as good as new” after they are serviced?

A First of all, remember we are only servicing the glass unit of the window. Secondly, we cannot eliminate the signs of aging that will have occurred, particularly on the exterior areas that have been exposed to the weather. We will, however, point out, to you any likely residue of mineral deposits that will be left inside the unit when we are finished.

Q How much inconvenience will I experience while my windows are being serviced?

A Usually very little, as almost all of our work is done on the exterior of the unit. If we do have work from the inside we will need clear access to the unit.

Q Is your warranty transferrable in the event that my home is sold to someone else?

A Yes.  Our 20 year warranty is fully transferrable to all subsequent owners of the house in which the Defogging work is completed.  You will receive a very nice Warranty Certificate which specifies that the warranty is fully transferrable for 20 years from the date on the applicable Defogger’s invoice.  Many of our Defogging customers keep a binder of invoices and warranties for home maintenance work they have done and pass it along to new buyers of the home.  You can preview the wording of our warranty certificate here.


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