This area sits in a severe cold climate band, and that matters more for a new install than most homeowners expect. An uninsulated single-layer door on a 1981 frame was never sealed for today's weatherstripping standards, so a straight swap without addressing the bottom seal and side gaps just buys you a newer version of the same draft. We'll flag that during the quote rather than assume you want it fixed - some people just want the door replaced, not the garage turned into conditioned space, and that's a fair call. The other complication is the original opener. If it's original to the house, it's likely a chain-drive unit with a wall button and no safety reversal sensors worth trusting, which means code and insurance both push toward replacing it alongside the door rather than reusing it. We'll tell you straight when a repair isn't worth it versus a full swap - that's not upselling, that's just where a door this old usually lands.