Elmhurst's houses went up mostly around 1964, a full generation before the 1980s and 90s stock that's typical across the rest of our service area. That gap matters for a new door install because garage openings, headroom, and track clearance all shifted as building codes and standard door sizes changed over those decades. A door sized for today's catalog doesn't always drop into a frame built for 1964 dimensions without adjustment. Winters here also run cold and hard, the kind of climate that works steel panels, weatherstripping, and insulation foam harder than a mild one would. With a median household income near $145,374 in Elmhurst, well above the roughly $111,898 median across our wider area, we see more owners asking for insulated steel doors with better seals rather than the base single-layer model - a door built for the cold rather than one that just fills the opening. Put the older frame and the colder winters together and you get a job that calls for careful measuring, not a catalog pick off the shelf.