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MarklandWoods Locksmith Co.Open 24/7 (289) 805-2539
Person holding two lock cylinders beside an open painted door, with loose hardware and debris on the sill. — Seized & Jammed Lock Opening, Mississauga

Lockouts · Mississauga

Seized & Jammed Lock Opening

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.

In plain words

A jammed lock looks like one problem from outside and is usually one of three inside. The cylinder itself may have seized, packed with grit, corrosion or old grease. The link between cylinder and bolt, the tailpiece or cam, may have broken, which is why a key can spin without doing anything. Or the lock may be healthy and the bolt simply pinned against the strike by a door that has moved. Seized and jammed lock opening starts by telling those apart, because the right answer for one would damage the hardware in another. Once the culprit is known, the door is opened and the cause is repaired.

Sound familiar?Mississauga

The call
It is the coldest morning of the winter and the key goes halfway into the side door and stops. There is frost on the face of the cylinder, and the door on the shaded side of the house has done this before.

NextHow the visit goes

Seized & Jammed Lock Opening · Mississauga

How the visit goes

Steel door lever on an oval plate with a key in the lock, beside a row of metal bolts on the edge.
  1. Scene 1

    What is inside the keyway

    A small mirror and a bright light show what the keyway has collected. Salt crust, sand, metal filings, sawdust from a renovation and the gummy residue of household spray oils are all common, and each reads differently: a dry gritty feel, a sticky drag, or a plug that will not accept the key to full depth. Ice shows as frost on the cylinder face and a key that stops short. A cylinder cap that has loosened lets the plug sit crooked so the pins never line up. This look decides whether the cylinder needs a flush and dry lubricant, a thaw, a re-tightened cap, or a full strip on the bench.

  2. Scene 2

    Stripping and rebuilding the cylinder on the bench

    With access restored, a cylinder that seized gets a proper service. The locksmith removes it from the door, slides the plug out with a follower so the top pins and springs stay put, and lays out the pin stacks. Everything is cleaned, worn bottom pins and tired springs are replaced, and any burr on the plug is dressed. The plug is reassembled to the same combination so your existing keys keep working, then lubricated with the product that cylinder's maker specifies and cycled until it turns with a fingertip. If the key that jammed was worn, a fresh one is cut from the code rather than from that key.

  3. Scene 3

    A lock that turns with two fingers

    You leave with a lock that operates the way it did when it was new: the key seats fully, the plug turns without a wiggle, the bolt throws and retracts through its whole travel, and the door closes and locks without a shoulder. The locksmith has cycled it from both sides and with every key, and has shown you where the trouble was, whether that was a gritty keyway, a broken tailpiece or a strike plate a few millimetres out. If you had a habit of lifting the door or pulling it toward you to lock it, that habit is now retired.

In the van

  • Penetrating lubricant
  • Replacement cylinder
  • Replacement tailpiece or cam
  • Long hinge screws
  • Dry PTFE or graphite lock lubricant

What shapes the quoteMarkland Woods Locksmith Co.

When the call comes in
An evening, weekend or holiday call for a jammed lock costs the same amount as a weekday one. The locksmith looks at what is actually jammed once on site, and the exact figure follows from that, not from the clock.
Inside door or outside door
A jammed bedroom or office privacy lock is generally a lighter job than a weather-exposed exterior deadbolt, and a mortise lock on an interior door sits between the two.
The drive to you
Driving time is part of every call, and a property at the end of a long rural road is a different trip from one a few streets over.

FeesSame any hour

Have it ready

Before you call · 0 / 3

(289) 805-2539

Frequently asked questions

The lever on our shop door goes down but the latch does not pull back. Is that a lock problem?

It usually points to the mortise case rather than the cylinder, and it is a common complaint on commercial doors. Inside the case a return spring, a worn hub, or another part of the latch's drive path can have failed, so the lever moves without driving the latch. The locksmith gets the door open, draws the case out of the door edge, replaces the worn part, cleans and greases the contact points and refits everything, then tests lever, key and thumb-turn together.

My keypad deadbolt is jammed and the motor just whirs. Is that the same service?

Yes, with one difference. On an electronic deadbolt the motor is trying to throw a bolt that is bound in the strike, and it strains or times out instead of driving it. Door alignment is a common cause, though batteries, corrosion, an overtightened mounting bolt, or a hardware fault can produce the same strain. The locksmith frees the bolt, adjusts the strike or hinges so it travels without resistance, checks the battery contacts, and confirms the auto-lock throws cleanly with the door closed.

Will I need a whole new lock?

Usually not. Most jammed locks are saved by cleaning the cylinder, fitting a small part such as a tailpiece or spring, or adjusting the door so the bolt has room. A new cylinder is fitted when the plug or shell is corroded through or twisted by forcing, matched to your finish and, where possible, pinned to your current key. A complete new lockset is usually a choice you make rather than a requirement, though some internal failures cannot be serviced in place and call for a full replacement.

Mississaugainformation

PeelOntario

Town
Mississauga, Peel
In business
26 years
Hours
Open 24/7
Nights, weekends and holidays, same fees
Visits
On-site assessment preferred. Request a visit or call.

2021 census: what it means at the door

Every square is one home in a hundred.

  • 38 in 100 homes · mixed ages
  • About 38% of homes in Mississauga were built in 1980 or earlier, according to the 2021 Census.Where housing is mixed, doors that have been replaced sit beside doors that never were. A new door in an old frame, or an old door in a repaired frame, needs its strike and hinges checked together so the whole assembly works as one.
  • Single-detached houses make up about 37% of homes in Mississauga (2021 Census).Townhouse rows often share a keyway chosen by the builder. A locksmith can move a household onto a keyway of its own so a neighbour's key, or a key from the construction phase, no longer has any chance of fitting.

Source: Statistics Canada, Census Profile

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On-site assessment

Request a visit.

The old mortise lock on the front door of the house turns the key halfway and stops with a dull clunk.

(289) 805-2539, open 24/7.