To solve a lock problem, first test if the key turns while the door is open. If it turns, the issue is likely a misaligned door frame. If it stays jammed, the mechanism is at fault. Lubricate with dry graphite or silicone spray, or adjust the strike plate for misalignments.
If your lock feels stiff or gritty when you turn the key, cleaning and lubricating it usually resolves the problem. However, if you can hear grinding or clicking sounds, the internal components may be worn and need replacing.
If your lock isn't opening, never force the key, as this can cause it to snap inside the lock. Instead, first check if the door is misaligned by pulling, pushing, or lifting the handle while turning. If this fails, apply a specialized dry lock lubricant like graphite powder and gently wiggle the key.
To free a stuck lock quickly, apply a dry lubricant like powdered graphite or a PTFE-based spray (such as Tri-Flow or Houdini) into the keyway. Insert your key and gently jiggle it while applying turning pressure to distribute the lubricant and free the pins. Avoid using standard heavy oils.
To force a lock open, choose a method based on the lock type: credit card (for standard spring-latch doors), lock picking (for pin-tumbler locks), or cutting/shimming (for padlocks). Always ensure you have the legal right to access the lock before proceeding.
To fix a stiff lock, apply a dry lubricant like powdered graphite or Tri-Flow into the keyway, then work your key in and out to distribute it. Avoid standard oil-based products like WD-40, which can attract dirt and cause the lock to gum up.
The best lubricant for a sticky lock depends on the lock's location, but Teflon (PTFE) or silicone-based dry lubricants are generally the top choices. For maximum longevity and clean operation, professionals recommend using specialized products rather than standard wet oils.
WD40 is not recommended for use with locks. WD40 actually removes the natural lubricant in the lock, often making issues worse. Keytek recommends using a specific lock lubricant or graphite powder Our top recommendation is 3-IN-ONE Lock Dry Lube.
A lock usually gets stuck due to dirt buildup, a bent or worn-out key, lack of internal lubrication, or door frame misalignment (where the bolt doesn't line up with the strike plate).
To quickly fix a lock that won't lock, first verify if the issue is with the lock mechanism or door alignment. If the lock works with the door open but jams when closed, your door is misaligned. If it jams even while open, the lock's internal mechanism requires lubrication or repair.
A deadlock occurs when two or more processes are permanently blocked because they are each waiting for a resource held by another. Fixing deadlocks involves choosing between preventing them proactively or resolving them after they occur.
Clean and Lubricate the Lock Cylinder
Dirt and rust, the two most common culprits, and will quickly interfere with your key's movements inside the lock. Start by wiping your key clean and using a compressed air can, to blow the dust away from the keyhole.
The answer to this classic riddle is a piano. A standard piano has 88 keys, but they are designed for playing music rather than unlocking doors.
Fixing a broken lock usually involves lubricating a sticky cylinder, tightening loose components, or aligning the strike plate. For a quick fix, apply a dry graphite or silicone lubricant into the keyhole and work the key back and forth. If the lock is loose, unscrew the faceplate and tighten the internal screws.
Polytetrafluoroethylene, or PTFE, is a Teflon-based lubricant that dries inside the lock to leave behind a non-stick, water-repellent film on all the surfaces. Since it's dry, it doesn't attract dust or dirt.
The ideal way to fix a seized lock is to use a lubricant. WD-40 offers several solutions to maintain your locks: WD-40 Multifunctional Product, WD-40 Specialist Locks Lubricant or WD-40 Specialist PTFE Dry Lubricant. Each of them has its advantages and can therefore meet your lock maintenance needs.
Some of the top door lock lubricant options are:
To fix a lock that won't turn, first ensure the key is fully inserted and the door isn't binding by pulling, pushing, or lifting the handle. Then, lubricate the internal mechanism using powdered graphite or a PTFE-based spray. Avoid oil-based products like WD-40, which can attract dirt and worsen the jam.
Generally, all you'll need to pick a lock are some picks (long, thin metal pieces with curved ends of different shapes for different types of locks) and a tension wrench. You can use paperclips as picks in a pinch, and a tension wrench can be any tool used to create tension, including a flathead screwdriver.
Open a stuck lock by lubricating the mechanism with graphite or silicone spray, jiggling the key gently, or using a stiff plastic card to retract the spring latch. If it is a door, lift the handle while pushing or remove the hinge pins to bypass the lock.
Yes, you can use Vaseline instead of WD-40 if you need a quick substitute. However, keep in mind Vaseline may not work for all applications, including inside locks. While it can work great on door hinges, it may be too sticky for locks and end up attracting dust and dirt particles—which can cause damage to your lock.
A stiff deadbolt is usually a sign of a sagging or misaligned door, not a broken lock, and small hinge and strike tweaks often restore smooth, secure operation. If your deadbolt suddenly feels stubborn, chances are the door has sagged or shifted so the bolt is fighting the frame, not that the lock itself has failed.
Teflon Dry Lubricant
Teflon-based dry lubricant is preferred by some locksmiths over other options. It's a great option because, as well as lubricating your lock, it repels water and dust. Meaning that once you fix a lock with this type of lubricant, you can expect the lock to be in good shape for a long time.