The service area sits in a cold climate band with severe winter conditions, and that doesn't skip Shorewood just because the homes here are newer than some of the surrounding towns. Steel cable and the lubricant on rollers and hinges both stiffen and get brittle as temperatures swing hard across a winter - that's a mechanical fact, not a Shorewood-specific one, but it lands on every door in the region the same way.\n\nWhat does track with Shorewood specifically is the build year. A 1986 door is old enough that the torsion spring has done three to four decades of daily cycling - lifting and lowering a 150-plus pound door twice a day for that long wears out the steel regardless of how well the house has been kept otherwise. With a median household income of $172,325, well above the $109,722 median across the wider service area, more Shorewood doors were built or later upgraded with insulated steel or composite panels rather than bare steel. That cuts down on panel warping from cold, but it doesn't do anything for spring fatigue or cable wear - those fail on schedule no matter what the door looks like from the driveway.