Housing across the Holland service area runs from 1943 up through 2002, with the median build year around 1978, and the bulk of it concentrated in 1960s and 70s construction across the fourteen named areas we work in. Doors from that era were built for a different set of expectations - lighter panels, single-layer steel, minimal insulation - because the cold-climate standards that shape today's doors didn't exist yet. Thirty, forty, fifty winters of expansion and contraction on that original hardware is what we're usually responding to when a homeowner calls about a door that won't stay balanced or won't seal. It's not bad luck or bad maintenance; it's a door built for a milder expectation meeting decades of a cold, severe climate. That combination is why installation, not another spring adjustment, is often the real fix once a door from that period starts failing.