In 2004, I replaced almost all windows in my house, frames and windows which cost me over $20,000. Back then, we already had install issues amongst other lots of little issues. This is not the problem but only the prelude to today. Fast forward, 13 years later, we now have windows that are failing...I quickly find out that the windows are guaranteed for 20 yrs but the Argon only 10yrs. The representative, Patrick, came to the house quickly enough (within 2 days) and explained to me that today, the Argon is guaranteed for 20 but only if you replace the whole window and 10 years again if only the thermal pane?? It is their product to start with so this is a head scratcher!! He told me he would give me a quote within a week....that was in March, we are now in May. I called the store twice in that time frame with no action on their part. Do not do business with Roberge (specifically in Gatineau). They do not back their own product and they don't even call you back. I am getting my thermals changed by another company....I just hope the whole window makes it to 20 years because I am sure Roberge will find a way to not honour the 20 yr warranty if thermals are changed by another company to no fault of my own.....I am their client and asked them first to change them with no response.