When Waiting Is Fine
If the draught coming under your garage door is slight, and the garage itself isn't heated or doesn't sit against a living space, you don't have to drop everything. Across the service area, houses were built mostly between 1952 and 2004, with the median build year landing right at 1972 - which means the bulk of the weatherstripping out there is decades past its working life. A little hardening or shrinkage at the bottom seal is normal at that age, not an emergency, especially if the only effect is a cold floor in an unfinished garage. Median household income in the area runs $80,612, which gives most owners enough room to plan a seal swap on their own schedule rather than treat it as a crisis call. If the opener still runs smooth, the panels aren't warped, and the draught is just air moving under the door edge, you can usually wait for a slow week. Where it stops being fine to wait: if you're losing heat into a room that shares a wall with the garage, if moisture is getting in and pooling near the slab, or if the draught comes with a grinding or scraping sound from the track - that's not a seal problem anymore, that's hardware.
The Situation
The service area's housing is a mix, but it leans old. Most of it dates to 1952 through 2004, median 1972, spread across 42 named areas from Downtown out to places. That means a lot of garage doors out there were installed, or re-installed, on hardware and track sized for that era - and a lot of original bottom seals have simply outlived their rubber. With 107,063 owner-occupied houses in the broader service territory, that's a large number of garages carrying the same aging seal at roughly the same time, which is why this comes up as often as it does. It's not one bad batch or one bad year of construction; it's just the math of a housing stock that's mostly 50 to 70 years old. The seal itself is a small part, but it's doing real work on a door that old - keeping weather out of a structure that was built before current code assumptions about insulation and air sealing even existed. When that seal goes, the draught shows up fast, and it shows up worse in winter than in any other season.
How Local Conditions Play In
The climate here is rated cold and severe, and that's the piece that turns a minor seal problem into a real one. Rubber and vinyl weatherstripping doesn't fail gracefully in cold - it hardens, cracks at the fold line, and loses its grip on the slab right when you need it most, usually mid-winter. On a house from the 1972-median building wave, that bottom seal has already been through fifty-plus freeze-thaw cycles, and each one takes a little flexibility out of the material. That's different from a climate that just gets humid or just gets hot; cold-and-severe means the seal is working against temperature swings that stress it structurally, not just cosmetically. It also means the draught you feel in January is often worse than the one you'd feel checking the same door in July, so a seal that looks fine in summer can be letting real cold air through come winter. If you're deciding whether to fix it now or wait, factor in the season: a seal replacement booked in October beats one booked during a cold snap, both for comfort and because rock-hard rubber is harder to pull and reset cleanly in freezing weather.
