Most of the garages behind Fairmont houses were built for a door, not a door and an opener. Homes here tend to date to around 1950, a good decade or more before the 1983 median for the wider service area we cover, and that gap shows up in the bay itself: narrow single-car openings, often 8 or 8.5 feet wide, framed with wood jambs that have shifted a little over seventy-plus years. There was no opener bracket planned into that framing because openers weren't standard equipment when these garages went up.
That matters for install day. A retrofit onto a jamb this age usually means we're adding real backing before the unit ever goes on the header, not just bolting a bracket to whatever's there. Low headroom is common too - a lot of these bays weren't built with rail clearance in mind, which pushes us toward a low-headroom or jackshaft setup rather than a standard extension rail.
Cold is the other factor. This part of the state sits in a severe cold climate band, and an opener with the wrong drive type or an uninsulated logic board will bind up or throw codes on the coldest mornings. None of that is unique to any one house on your street - it's a function of the era these garages were built in, and it's why we look at the bay itself before we ever talk about which opener model.
One honest limit: if the jamb has rotted past the point of holding new backing, opener install has to wait on that repair first. We won't hang a unit on wood that won't hold it.