After the shake — measure the opening, not the door — across Los Gatos, Monte Sereno, Saratoga, Campbell, Cupertino, Willow Glen, Almaden Valley, Sunnyvale.
Tracks are the door's railroad, and they only get noticed when the train derails: a scrape at the same point every cycle, a shudder at the curve, a roller riding the track lip, a door jammed cocked at knee height. We true tracks with gauges rather than by eye — correct roller clearance top to bottom, plumb verticals, matched horizontal radius, anchors reset into sound material.
The distinctive cause in this valley is seismic. When the ground moves, a garage opening is one of the weakest parts of a house — a wide hole in a wall carrying the floor above it — and it racks before almost anything else does. After a real shake we do not start by adjusting the door: we measure the opening for square and plumb, because a door being persuaded into a frame that has moved will bind forever. Getting that order right is the whole job.
Older garages here have a second, related weakness worth knowing about: many were built with very little bracing beside a wide opening, and that is precisely the condition engineers flag on soft-storey houses. We are door people rather than structural engineers and we say so — but when we see an opening that has clearly racked, we tell the homeowner plainly that the framing is worth a structural opinion rather than quietly shimming the door and moving on.
The opening measured for square and plumb before the door is touched — cause established, not assumed.
Truing, re-anchoring and any section replacement in one approved number.
Rails straightened or replaced, anchors reset into sound material, spacing set to gauge.
Door cycled end to end, clearances rechecked under load, quiet confirmed.
Tell us what your door is doing and we'll call you right back. No prices online — cost depends on the door, parts, and size, so we give an exact on-site quote.