A sliding door out of alignment announces itself in small ways: a rub at one corner, daylight showing at the top of the latch edge, a lock you have to lift the door to engage, a whistle of air on windy nights. The panel is no longer square to its frame — and every one of those symptoms gets worse until it's corrected. Ancient City Sliding Doors provides precise alignment and adjustment service across St. Augustine.
Alignment is the finesse side of door work: small roller-height changes, keeper repositioning, and reveal balancing that transform how a door feels and seals.
Why Doors Fall Out of Alignment
Rollers wear unevenly and one corner of the panel drops. Houses settle and the frame racks slightly. Track wear tilts the rolling plane. Previous repairs leave the adjusters set wrong. Any of these puts the panel out of square — and because the latch, the weatherseals, and the interlock all depend on square, everything downstream suffers.
We diagnose which of these is at work rather than blindly cranking adjuster screws, because adjustment can't fix collapsed rollers or a gouged rail — and we'll tell you when it can't.
The Adjustment Process
Using the roller adjusters in the panel's bottom rail, we set each corner's height so the reveal — the gap between panel and frame — runs perfectly even top to bottom and side to side. Then we align the lock keeper to the latch hook, verify the interlock between panels engages, and confirm the weatherstripping compresses evenly along the full perimeter.
A properly aligned door latches with a fingertip, seals against driven rain, and rolls without a whisper of rub.
Energy, Comfort, and Security Payoff
Alignment is the cheapest fix with the biggest daily payoff: sealed gaps cut air-conditioning loss and humidity infiltration, an engaged latch restores real security, and eliminating the daily lift-and-slam saves the rollers and track from accelerated wear.
It's included in most of our repairs — and available as its own quick service call when that's all your door needs.
Sliding Door Alignment & Adjustment Across Northeast Florida
Ancient City Sliding Doors provides sliding door alignment & adjustment throughout St. Augustine and the surrounding region. Choose your area for local details: