My house has the original aluminum frame single pane windows which were installed in the '70s. I have a problem with barking dogs, and am getting ready to replace the windows with vinyl, argon filled double pane glass. That side of my house has 6 windows, and an 8 foot sliding door (which I plan to replace with a 6 foot french door). My question is this: though I really need to stop the air leaking in (I can see the blinds moving with the sliding door closed), will I achieve my goal of cutting down the barking dog noise? Thanks for your help.

I have had it with this new door. It is a Crestline exterior clad single sliding french door. It was a size match for the previous door so it was a simple pull out the old door, slip in the new door, shim, nail, and all done. Wrong!!! The sill height on the inside is 2 inches above the floor. Like the previous door (an Anderson) it is sitting on the subfloor and it still extends 2 inches above the floor covering on the inside. I have had numerous conversations with the manufacturer. They insisted for several email exchanges (with pictures) that it was an installation problem. When I kept asking how I was to make the door lower - Cut into the floor joists??? They finally said it was a door made that way so water could not get in. This door was purchased at a local do-it-yourself big box store. Nothing special was ordered. No special kit or type of door for a specific installation. They are saying I got what I ordered even though they can't show me on the order where it says anything about a special threshold. I don't know what to do. Two people have tripped over the sill and fallen onto the porch. It is like living on a ship. Can somebody explain this to me and give me some idea of what I should do. I will be glad to send you a picture if you send me your email - my email is: d.adams@mnsu.edu I would really appreciate some help or ideas. Thanks!!!