Mossy at the foot, loose at the top — across Issaquah, Sammamish, Bellevue, Newcastle, Snoqualmie, North Bend, Redmond, Mercer Island.
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 local failure starts at the bottom of the rail. The last few inches of each vertical track stand in a damp corner where moss grows and water lingers, and the lowest anchor and track foot corrode while everything at head height still looks fine. A rail that has lost material at its base is no longer holding the roller to a true line, and no adjustment higher up fixes that. On houses built into a slope, where that corner is below grade, it happens faster again.
The second local factor is what the track is anchored into. Timber framing beside a damp garage opening softens over the years, and a lag screw that will not hold is usually a wood problem rather than a screw problem. Driving a longer screw into softened timber is not a repair. We anchor into sound material, adding backing where the original framing has gone, and we say plainly when a jamb needs replacing rather than fixing around it.
Plumb, gauge and radius measured end to end — and the lower rail, anchor material and jamb inspected rather than 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.