Businesses throughout Atlanta call us for mortise lock repair when they experience:
Key Won’t Turn
Your key inserts completely but won’t rotate in the cylinder, or it feels stuck at certain points in the turning motion. This condition often results from worn tumblers, damaged key cuts, foreign debris in the cylinder, or internal cylinder component failure. Attempting to force the key can break it inside the lock, creating a more complex and expensive repair situation.
Difficult Operation
The lock requires excessive force, repeated jiggling, or specific manipulation techniques to open. You may need to lift the door handle while turning the key, or pull the door toward you to get the lock to operate. This frustrating condition typically indicates internal wear, misalignment between the lock and strike plate, or bent components that prevent smooth mechanical operation.
Loose Door Handle
The handle wobbles excessively, doesn’t return to its horizontal position properly after use, or feels disconnected from the latch mechanism. Loose handles usually result from worn spindle holes in the lock body, damaged spindles that no longer grip the handle properly, loose set screws that secure the handle to the spindle, or internal spring failures that normally return the handle to position.
Lock Won’t Latch
The door doesn’t catch or stay closed securely, requiring you to manually engage the deadbolt for security. The latch may not extend far enough to reach the strike plate, may extend but not catch properly, or may retract unexpectedly when the door closes. This dangerous condition leaves your property unsecured and vulnerable to unauthorized entry.
Bolt Doesn’t Extend
The deadbolt won’t fully engage into the strike plate, gets stuck partway through its travel, or retracts with difficulty when you turn the key. Partial bolt extension provides inadequate security, as the door can often be forced open with minimal effort. This condition may result from internal mechanism failure, strike plate misalignment, or debris preventing full bolt travel.
Grinding or Sticking
Unusual noises during operation including grinding, scraping, clicking, or squeaking sounds that weren’t present when the lock was new. These noises indicate metal-on-metal contact where lubrication has failed, worn components that no longer move smoothly, or loose parts moving independently when they should remain fixed. Ignoring these warning signs typically leads to complete lock failure.
Misalignment Issues
Door settling, building movement, or hinge wear has caused the door to shift position relative to the frame. The latch or deadbolt no longer aligns properly with the strike plate, causing the lock to bind, fail to engage fully, or require excessive force to operate. Alignment problems are particularly common in older buildings and structures with foundation issues.
Worn Internal Components
Years of daily use have degraded springs that no longer provide adequate tension, cams that have worn thin where they contact other parts, cylinders with loose tumblers, or bolt assemblies with rounded edges that no longer engage crisply. These age-related conditions progressively worsen until the lock fails completely, often at the most inconvenient time.
If your lock is beyond economical repair, see our Commercial Mortise Lock Replacement.