Services
Alignment, Leveling & Adjustment
Doors that drag on one side, meet crooked, leak at the corner or will not latch — the geometry fix underneath half of all slider problems.
A sliding panel is a big, heavy rectangle that has to stay perfectly square in its frame while riding on two small adjustable rollers — and everything conspires against it. Rollers wear at different rates. Houses settle. A panel that was true the year it was installed sits a quarter-inch low on the latch side today, and the symptoms read like five different problems: dragging at one corner, a lock that will not engage, a gap at the top of the meeting stile, a door that drifts open or closed on its own.
Alignment service is the systematic fix: rollers adjusted (or replaced where worn), panel leveled and squared to the jamb, the interlock meeting evenly, and the lock and keeper brought back into true. It is the least glamorous service we offer and the one that quietly fixes the most doors.
What's included
- Roller height adjustment across both assemblies
- Panel squareness and reveal measured at all four corners
- Track level and sill condition check
- Interlock and meeting-stile alignment
- Lock and keeper re-alignment as the final step
- Full-travel and latch test, ten cycles before we leave
Book Your Door Repair
Tell us what the door is doing and we'll call you back to confirm. Rather talk now? (855) 640-0404 — answered 24/7.
How it works
Our Process
Measure the geometry
Reveals at all four corners, panel height on both sides, track level — the numbers say what is actually out.
Check the foundation
Rollers are inspected first; adjusting a door on flat-spotted rollers is geometry on a broken foundation.
Square & level
Roller heights are set so the panel sits true, the interlock meets evenly and the seals compress the same all around.
Latch test
Lock and keeper are aligned last and tested ten full cycles — smooth, positive, no lifting or shoving.
Questions
Alignment, Leveling & Adjustment — FAQs
Often both, in sequence: worn rollers cause the misalignment. We inspect the rollers first — if they are sound, adjustment alone is the fix, and we will tell you that instead of selling parts.
Yes — the few millimeters a sliding door cares about are well within what settling, deck movement and seasonal ground shift deliver. The door does not need the house to be perfect; it needs to be adjusted to the house as it stands today.
Yes — the track or the panel is fractionally out of level, and gravity is doing the rest. It is adjustable in most cases, and it matters beyond annoyance: a door that drifts does not stay latched, and a door that does not latch is not locked.
There is no fixed interval — adjustment is an as-needed service, typically after roller work, after settling events, or when symptoms appear. A door that is getting heavier on one side is asking early; answering early is cheap.