Someone Tried to Pick My Lock in Wychwood — A Customer Asked What Signs to Look For After a Break-In Attempt

Last updated: June 19, 2026

If someone attempted to pick your lock, you'll spot fresh scratches around the keyhole, tiny metal shavings inside the lock mechanism, a stiff or misaligned cylinder, or tool marks on the face plate—these are the first indicators that warrant a professional inspection and likely a cylinder replacement.

The Short Answer

Lock picking signs Toronto homeowners most commonly report are visible scratches around the keyhole, a cylinder that turns too freely or sticks partway, and tiny brass or steel shavings visible inside the lock. The surest way to confirm a pick attempt is to have a locksmith examine the pins inside the cylinder—they'll show compression marks or alignment damage that picking tools leave behind. If you see these signs, your lock has been compromised and needs replacement regardless of whether the intruder succeeded in opening it.

Don't wait to assess this. A lock that's been picked or attacked is weaker the second time, and replacing it with a pick-resistant cylinder—like a Mul-T-Lock MT5+ or a Schlage Primus—protects you far better than attempting repairs on a compromised mechanism.

The Full Answer: What to Look For After a Suspected Lock Picking Attempt

1. Visible Scratches and Tool Marks Around the Keyhole

The most obvious sign of a picking attempt is fresh scratching around or inside the keyhole. Look for bright, clean marks (not darkened by age or oxidation) that stand out against the surrounding metal. These are usually made by the tip of a rake pick or tension wrench grinding against the lock face as someone worked to manipulate the pins.

I've examined locks in Forest Hill and Downtown Toronto where the scratches were deep enough to catch your fingernail. Honest to God, sometimes I couldn't believe the owner had missed them—but stress, low light at the entryway, or just not knowing what to look for kept them blind to what was obvious once pointed out. The scratches are there. Look closely with a flashlight aimed horizontally at the lock face.

Pay particular attention to the area directly surrounding the keyhole. A picking tool has to be angled and repositioned repeatedly, so you often see a cluster of short scratches rather than one long gouge. This clustered damage is much more suspicious than a single random scratch.

2. Metal Shavings and Debris Inside the Mechanism

If a picking attempt happened within the last few days, you may find tiny brass or steel particles inside the keyway or on the floor directly below the lock. These shavings come from the lock pins themselves being scraped or bumped by picks, or from the tension wrench grinding against the cylinder walls as leverage is applied.

To check, use a flashlight to look straight into the keyway. Tilt the lock at an angle and see if anything falls out. In older locks—especially the cheap pin-tumbler cylinders installed in Leslieville and Cabbagetown rentals in the 1990s—shavings accumulate visibly. In newer, tighter tolerances, shavings may be less obvious, but a locksmith can vacuum and inspect the chamber during a professional exam.

3. A Cylinder That Feels Wrong—Stiff, Too Loose, or Misaligned

This is subtle but crucial. When someone picks your lock or attempts to, the internal pins and springs shift. You might notice your key turns harder than it used to, or sometimes the cylinder binds halfway through the turn. Alternatively, the cylinder might feel looser—turning too freely, with less resistance—because the picking has worn or aligned the pins in an unintended way.

Even stranger, the cylinder itself might sit slightly crooked in the door. A sustained picking attempt can loosen the set screws or shear internal components, causing the cylinder to shift. Test this by inserting your key and gently wiggling the cylinder—it should not move at all. If it rocks side to side, something inside is broken.

4. Pin Damage Visible Under Professional Inspection

A locksmith removes the cylinder and inspects the pins under magnification. Picking leaves telltale marks. The driver pins (the top pins) show compression dents or flattening where a pick repeatedly tapped them. The key pins (the bottom pins) often have tiny notches or scratches from the picking tool catching or scraping them. These marks are permanent and prove the lock was attacked.

I've pulled cylinders in Rosedale and St Clair where the damage was so severe I knew immediately—before I even looked inside the keyway—that the owner had a real problem. The cost of confirming this truth is a locksmith visit, typically $115 to $185 for a diagnostic and professional assessment. It's worth it to know for certain whether someone got in or just tried and failed.

5. Scratches on the Door Frame or Deadbolt Housing

Sometimes the evidence isn't in the lock itself—it's on the hardware surrounding it. A person using a crowbar or pry tool to force a deadbolt might scratch the strike plate, the door frame, or the face plate of the lock. These marks are often whitish or show exposed metal where the finish was removed.

Look at the frame around your deadbolt—especially the area above and below the bolt itself. If someone tried to lever the bolt back into the door to force entry, you'll see fresh gouges or scratches on the frame or the door itself. This is often paired with a lock that still works but feels slightly loose or damaged inside.

6. The Lock Opens Even When Your Key Doesn't Feel Right

This is a red flag that rarely gets mentioned but happens regularly in high-break-in areas like Downtown Toronto and Liberty Village. After a picking attempt, the lock's tolerances are so degraded that someone else's key—or even a generic blank—can turn it partially or fully. Your own key works, but you notice it catches, doesn't seat as smoothly, or the lock opens even when you haven't inserted a key all the way.

This means the pins have been so misaligned by the picking that the lock's security is fundamentally compromised. Replacement is non-negotiable at this point. A standard Kwikset or Weiser cylinder from a big-box store won't cut it—you need a pick-resistant cylinder like a Mul-T-Lock MT5+ (typically $85–$120) or a Schlage Primus (typically $140–$210), installed professionally.

When the Answer Is Different: Edge Cases and Exceptions

Your Lock Is Old and Shows Wear Unrelated to Picking

If your lock is 20+ years old—common in Yorkville and Casa Loma heritage buildings—surface scratches and internal wear might be from normal use, not a picking attempt. A locksmith can tell the difference by examining the newness of the damage. Fresh scratches have clean, bright edges. Old wear is oxidized, darkened, and dulled by exposure.

Additionally, if you've lived in the home for years and your key has always turned stiffly or the cylinder has always felt loose, that's not picking—that's just an aging lock. However, a sudden change in how your key feels is the warning sign. If last week it turned smooth and today it catches, something has happened.

You Have a Smart Lock or Keyless Entry, Not a Pin-Tumbler Cylinder

If your front door uses a keypad, biometric reader, or Bluetooth lock (like a Level Lock or Aqara Smart Lock), traditional picking is not the threat. Attacks against smart locks target the electronic layer or the mechanical override cylinder hidden behind a cover. The lock picking signs Toronto I've described above apply only to traditional pin-tumbler cylinders.

If your smart lock has an override cylinder and you suspect tampering, check the battery level (a sudden drain can indicate forced attempts), look for physical marks on the exterior housing, and review your entry logs if the system stores them. If the override cylinder shows picking signs, you still need to replace it.

Your Lock Was Recently Serviced and Feels Different

If you had a locksmith rekey, lubricate, or service your lock within the last few weeks, the cylinder behavior may change. Lubrication can make the key turn easier. A rekey changes how the pins align. Professional work can leave minor marks from removal and reinstallation. If you suspect attack but had service recently, contact the locksmith who did the work and ask if the changes are normal—they can verify their own work without re-charging you.

What to Do If You Confirm a Picking Attempt

First, don't touch the lock any more than necessary. If you suspect a break-in, call Toronto Police (311 for non-emergency or 911 if you believe entry was successful). Document everything with photos before anyone else handles the door.

Contact a licensed locksmith the same day. A thorough inspection costs $115–$185 in the Toronto area and is worth every dollar. The locksmith will tell you whether entry was successful, whether your lock is salvageable, and what upgrade you need.

If your lock is compromised, get a replacement. Standard cylinders cost $60–$100; pick-resistant cylinders like a Mul-T-Lock MT5+ run $85–$120. Installation ranges $80–$150 depending on the door and your location within Toronto (Downtown and Yorkville shops charge slightly more due to access and demand). A full replacement job—cylinder and installation—typically runs $180–$350.

Consider upgrading to a high-security lock system if this is your second break-in attempt or if you're in a high-risk area like Liberty Village or Downtown Toronto. A Mul-T-Lock or Schlage Primus is worth the investment for peace of mind.

FAQ: Common Questions About Lock Picking Signs

Protect Your Home with a Professional Inspection

Spotting lock picking signs Toronto homeowners can recognize—scratches, shavings, stiff cylinders—is the first step. Acting on those signs is the second and most important one. A compromised lock is an open invitation, whether the intruder succeeded or failed on their first attempt.

Don't guess. Don't assume old scratches are normal wear. Get a professional locksmith to inspect the lock, confirm whether entry was attempted or successful, and replace it with a pick-resistant cylinder if needed. The cost—typically $180–$350 for the full job—is a small price compared to a break-in.

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This article was drafted with AI assistance to ensure factual accuracy.