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Person holding two lock cylinders beside an open painted door, with loose hardware and debris on the sill. — Seized & Jammed Lock Opening, Markham

Emergency Lockouts · Markham

Seized & Jammed Lock Opening

The shop's lever handle goes down as usual, but the latch inside the mortise case never pulls back. Staff are waiting on the sidewalk with their coffees, the door is locked, and the handle is simply moving air.

Call now · open 24/7(289) 306-0409

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In plain words

This service has a season here. The first wet fortnight of winter sends meltwater into keyways that freezes overnight, and doors on the north and shaded sides of a building stay iced the longest. Salt spray from driveways and walkways leaves a crust that thickens with every thaw. Then summer humidity swells wood doors until the bolt drags in its pocket. A jammed lock opening in these conditions means thawing without boiling water, flushing out salt, drying the cylinder, and dressing it with a lubricant that sheds moisture, along with a check of the door so the same weather does not jam it again next month.

Sound familiar?

The old mortise lock on the front door of the house turns the key halfway and stops with a dull clunk. It has been getting harder for months, and the brass key is starting to show a bend.

How the visit goes

Seized & Jammed Lock Opening · Markham

How the visit goes

Technician fitting a steel door knob into a door beside a deadbolt, with an open tool bag of screwdrivers nearby.
  1. 1

    What the weather and the house have been doing

    The last questions are about recent history. Has there been a thaw followed by a hard frost, or a stretch of humid days? Is this door on the shaded or windward side, or near a salted driveway? Was the door painted, re-hung, fitted with new weatherstripping or a storm door lately? Has anyone sprayed something into the keyway? Each answer changes the likely cause, and together they tell the locksmith whether this is a one-off, such as a freak freeze, or a lock that is going to keep doing this until the door or the lubrication habit is changed. The answers also shape the advice you leave with.

  2. 2

    Opening when the tailpiece has failed

    A key that spins freely means the cylinder is fine and the bar behind it, the tailpiece or cam, has broken, slipped or twisted out of engagement. The bolt is then retracted directly through the mechanism rather than through the cylinder, or the cylinder is withdrawn so the locksmith can reach the bolt drive. Once the door is open the old tailpiece is removed and a replacement of the correct length and profile is fitted, since one that is too short repeats the fault and one that is too long binds. The cylinder goes back, the retaining screws are checked, and the bolt is thrown and retracted with the key until it moves cleanly through its full travel.

  3. 3

    Keeping the cylinder clean and dry

    A serviced cylinder stays that way with very little effort. At the interval and with the product that cylinder's maker specifies, a short burst of lock lubricant into the keyway followed by a few turns of the key is enough; stay with that one product, since mixing lubricants makes a paste. Household oils, penetrating sprays and silicone meant for hinges belong nowhere near the pins, because they thicken and attract grit. Wipe the key before it goes in on a muddy or salty day. If the lock ever starts to drag, a puff of lubricant is the first response, and a call is the second.

In the van

  • Replacement tailpiece or cam
  • Dry PTFE or graphite lock lubricant
  • Strike plate and hinge shims
  • Penetrating lubricant
  • Key blanks and code cutter

What affects the quote

  1. 1

    Door and hinge adjustment

    When the door caused the jam, hinge screws, shims, a strike move or a deepened bolt pocket are quoted as their own line beside the opening.

  2. 2

    Service or replace the cylinder

    A cylinder that can be stripped, cleaned and rebuilt is quoted as labour with a few small parts; one corroded through is quoted with a replacement cylinder matched to your finish and keyway.

  3. 3

    Which part is jammed

    A bolt pinned by the door, a cylinder clogged with grit and a broken tailpiece are three different jobs with three different amounts of work, and the quote follows the diagnosis rather than the symptom.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 306-0409

Seized & Jammed Lock Opening: questions

Advice · (289) 306-0409

What should I tell you on the phone?

Say what the key does: refuses to turn, spins without effect, or works only when the door is pushed or pulled. Name the lock type if you can, whether it is a deadbolt, knob, lever or an old mortise lock, and which side of the building the door faces. Mention recent weather, any spray that went into the keyway, any other door you can use, and whether anyone is inside. That short list decides the tools that come.

My key turns all the way round but the bolt stays put. What has broken?

The key and cylinder are doing their job; the bar behind the cylinder that drives the bolt, called the tailpiece or cam, has broken, slipped or twisted out of engagement. It is a small part. The locksmith retracts the bolt through the mechanism or removes the cylinder to reach it, then fits a tailpiece of the right length and profile. Your cylinder and keys are unchanged afterwards.

My key is worn. Would a new copy have prevented this?

Possibly, if the key was part of the cause. A worn or bent key lifts the pins short of the shear line, so the plug binds even in a healthy cylinder, and a copy made from that key repeats the wear. A key cut from the code or from a crisp original is the fix. If the lock was also gritty or the door had moved, the new key would have eased things without settling them, which is why the locksmith checks all three.

Seized & Jammed Lock Opening near you

York, Ontario

Markham information

Town
Markham, York, Ontario
In business
33 years
Hours
Open 24/7 · nights, weekends and holidays, same fees
Visits
On-site assessment preferred. Request a visit or call.

What the census means at the door

19%

Newer homes. About 19% of homes in Markham were built in 1980 or earlier, according to the 2021 Census.

Recent builds often have steel or fibreglass entry doors rather than solid wood. They resist warping and take hardware well, and a locksmith fitting a deadbolt or reinforced strike works with the door's construction so screws bite into something solid.

56%

A mix of homes. Single-detached houses make up about 56% of homes in Markham (2021 Census).

Where housing types are mixed, the same lost-key call means different things. In a house, rekey every door on the property. In an apartment, rekey the suite door and check with management about the common entrance. The locksmith asks which it is first.

Source: Statistics Canada, 2021 Census of Population

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Request a visit

The shop's lever handle goes down as usual, but the latch inside the mortise case never pulls back.

Call now · open 24/7(289) 306-0409
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 33 years in business