My windows are all 4x4 feet. And I don't think they were ever installed properly.I got a quote from Andersen about 2 years ago. They wanted over $40k to replace 15 windows... Granted, 4 of those are really big (7 or 8 ft), but that's still stupid excessive.
Hearing your experience makes me really glad I told them to pound sand.
I'm going to work on adjusting them tomorrow while the weather is nice and see if that helps.
As for the door in the bedroom. OMG...annoying as heck with it's draft too. That I'll add insulation to.
There's a chance that all I really need to do is replace the weather stripping, not cheap, but cheaper than new doors and windows.