Most aluminum patio doors are reversible. You might have to remove the sliding doors interlock side, reverse it and also reverse the locking handle, but everything else should be fine.
Thanks for reaching out to us. If the rollers are riveted to the door, then they may need to be drilled out in order for you to remove and identify them. It won't be possible to find a match as long as they're in the door, unfortunately, and depending on the age of the door you must understand that no replacement may in fact exist.
I can promise that we'll do our best to find something, but removal will have to come first, which will take a fair bit of handiwork. I just wanted to make sure we don't get your hopes up.
