Broken Lock
A sliding door that will not lock, or will not release once locked, is both a security problem and a daily aggravation - and on the premium doors around Naples it is often a more involved lock than people expect. Many high-end and impact-rated sliders use multi-point locks that latch at several points down the edge of the panel, so 'the lock is stuck' can mean several linked mechanisms, not one simple latch.
A basic slider uses a single latch or hook set into the leading edge of the panel that swings out to grab a keeper on the jamb when you throw the handle. Premium and storm-rated doors add points above and below it, tied together by a rod system the handle drives all at once. Age wears the moving parts so the latch stops throwing, feels loose, or spins free; the handle set can crack or work loose; and on a multi-point system a single bent or corroded linkage can jam the entire door locked or unlocked. The heavier and better-sealed the door, the more force those latches take, and the harder they are on worn parts.
Salt does quiet damage inside a lock. The springs, pins, and linkages corrode and stiffen, so a mechanism that once worked smoothly seizes - and a house closed for the season gives that corrosion months to set before anyone turns the handle again. Alignment plays a role too: after storm stress, or as the panel sags on tired rollers, the latch no longer meets its keeper, so the lock only catches if you lift or lean on the door to find the sweet spot.
You almost never replace a door over a lock. We diagnose whether the trouble is the latch mechanism, the handle set, the keeper, the multi-point linkage, or simple misalignment, then repair or swap the failed hardware and re-square the panel so it locks cleanly. Because sliding-door locks vary widely between brands and eras - multi-point systems especially - matching the correct hardware to your specific door is what makes the fix hold. Wedging a broom handle in the track is a sign the real mechanism needs attention, not a solution.
Where we look first
- The latch or hook body for worn or broken internal parts
- On premium doors, the multi-point linkage and every locking point
- The handle set and lever for cracks and looseness
- The keeper on the jamb and whether the latch still meets it
- Whether the panel has sagged so the lock only catches when lifted
- Corrosion seizing springs and linkages from salt exposure
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Frequently asked questions
My door has a multi-point lock - can you repair that kind?
Yes. Multi-point locks latch at several points down the panel edge through a linkage the handle drives together, and a single worn or corroded link can jam the whole system. We diagnose which point or linkage has failed and repair or replace the hardware, matched to your door, so all the points throw and release as they should.
The lock seized up while the house was closed for the summer - can it be freed?
Usually. Months of salt and humidity on a still mechanism corrode the springs, pins, and linkages until they stiffen or lock up. We assess whether the internals can be cleaned and freed or need replacing, and correct any alignment that shifted while the door sat, so it locks smoothly again.
I have to lift the door to get it to lock - why?
That is the classic sign the panel has dropped on worn rollers or shifted in the frame, so the latch only lines up with its keeper when you lift the door to the right height. The lasting fix is to re-square the panel - often with fresh rollers - so it locks properly without the lifting trick.
Is a slider that will not lock a real security risk?
Yes. A patio slider is a common entry point, so a lock that does not latch reliably leaves the home exposed - and a bar wedged in the track is only a stopgap. We recommend repairing the mechanism so the door secures itself properly, especially on a home left empty for the season.
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