If they are 10 years old, they should be covered in total if there are manufacturing issues at hand.

The structure and frame of the windows are covered for 20 years.

What, exactly, is loose?

Doesnt sound like there is much you can do. They are probably andersen " tilt wash" which are notorious for leaking air and not being efficient. Pella are just as bad in my opinion. I would look at " high end vinyl" offerings. They are NOT the junk/ cheap looking stuff you will find at home depot or Lowes.

Okna, sunrise, quantum 2 make some of the most air tight windows you will find and they look nice. Depending on where you are located, they should be available.

Yes, they are "tilt wash". As far as warranty, what I have read is that the glass is covered for 20 years and everything else is only covered for 10, that would make most of the window out of warranty currently.

What is loose? Well that is just my description I guess, but the sashes are not tight in the frame at all. On a few of the windows the sash does not come down and touch the inside of the frame even when locked and the lock is pretty tight. Just had the polar vortex come through and we had to put plastic up or we would have been freezing. There was ice build up on the inside of every window mostly where the two sashes meet in the middle.

I have a busy week next week as I have 5 companies coming to do quotes. I have completed ruled out Pella at this point thanks to these forums.

Here are the brands the companies install that are coming out:
Starmark ( I think this is Okna)
Sunrise
Soft Lite
Provia (Aeris windows)
Polaris

I guess I just need to bite the bullet and get all these replaced.

Doesn't sound like there is much adjustment to be done from your description.

Sorry to see that. That window should have lasted longer.

Some people tend to think that wood does not have an issue with shrinking or maintaining shape either. I guess this doesn't really strengthen that argument.