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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, Mimico

Emergency Lockouts · Mimico

Seized & Jammed Lock Opening in Mimico

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.

Call now · open 24/7(289) 805-5275

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In plain words

On storefronts, offices and older houses the hardware is often a mortise lock with a lever, and the jam is frequently inside the case, not the cylinder. A lever that swings without retracting the latch can point to a broken spring, a worn hub, or another fault in the drive path; a key that stops halfway can point to a bent spindle, an old case packed with dust, or a problem in the cylinder itself. Seized and jammed lock opening for this hardware means getting people through the door, then opening the case, cleaning the contact points, and fitting the part that gave up.

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 · Mimico

How the visit goes

Metal key-cutting machine with a key clamped in its vise, a clear guard over the cutter and a black handle. — Mimico
  1. 1

    Levers, thumb-turns and mortise cases

    Lever handles and mortise locks add parts that a plain deadbolt does not have, and each can jam on its own. A lever that drops without retracting the latch can have a tired return spring or a worn hub inside the case, though latch engagement, linkage, or the spindle can produce the same symptom. A thumb-turn that will not move can be a bent spindle, a stripped drive or a bolt pinned by the frame. On older houses and commercial doors the mortise case itself may be packed with decades of dust and dried grease. The locksmith works the lever, key and thumb-turn separately and feels where resistance starts, which locates the fault before the case is opened.

  2. 2

    Freeing a seized cylinder without forcing it

    A plug that will not turn is coaxed, not wrenched. The locksmith flushes the keyway with an electronic contact cleaner to lift out grit and old residue, then applies a penetrating lubricant sparingly, since too much simply carries dirt deeper. The key is worked in small movements, in and out and a few degrees each way, letting the pins settle back into their stacks. If the cylinder cap has loosened, it is snugged so the plug sits square. As the plug begins to move, tension is kept light so nothing inside is bent. Once the door is open, the cylinder is removed for proper cleaning rather than left with lubricant masking the wear.

  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

  • Penetrating lubricant
  • Replacement cylinder
  • Electronic contact cleaner
  • Dry PTFE or graphite lock lubricant
  • Strike plate and hinge shims

What affects the quote

  1. 1

    Keying a new cylinder to your existing key

    Pinning a replacement cylinder to the key already on your ring, or rekeying other doors to match a new key, is extra work per cylinder and simplest to do in the same visit.

  2. 2

    Matching finish and keyway

    A replacement that has to match an unusual finish or a restricted keyway takes a specific part rather than a stock one, and the quote reflects the part.

  3. 3

    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.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 805-5275

Seized & Jammed Lock Opening: questions

Advice · (289) 805-5275

The thumb-turn is stuck from inside and we need that door to get out. What should we do?

Use another exit for now and call. From the inside the fault is usually a bolt pinned by the frame or a bent spindle, both of which the locksmith frees without damage. A main exit door should open from inside without a key or special knowledge, so the repair leaves the door doing exactly that, and if the hardware on it was the wrong type for an exit, a thumb-turn deadbolt is suggested.

Could a jammed lock mean someone tampered with it?

Occasionally, but wear and weather are far more common. Signs that point to tampering are fresh scratches around the keyway, a plug that sits crooked, or debris such as glue or a broken tool tip inside, none of which appear from ordinary use. The locksmith looks for these during the inspection and says plainly what was found. If the cylinder has been damaged that way, it is replaced and, if you wish, the other doors are rekeyed.

Should I spray something into the keyway while I wait?

Better not, unless it is a proper dry lock lubricant. Household oils, general penetrating sprays and hinge silicone thicken inside the cylinder and attract grit, so they buy a day and cost a service later. If the lock is frozen, a lock de-icer is fine; boiling water is not, since it refreezes deeper in. The most useful thing to do while waiting is to stop turning the key, so it does not bend or snap.

Seized & Jammed Lock Opening near you

Toronto, Ontario

Mimico information

Town
Mimico, Toronto, Ontario
In business
20 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

58%

Older homes. About 58% of homes in Toronto were built in 1980 or earlier, according to the 2021 Census.

Established homes often have non-standard bores and backsets from an earlier generation of hardware. A locksmith working in such an area carries adapter plates and cylinders in the older sizes, so an upgrade fits the existing door instead of forcing a new one.

23%

Single-detached houses make up about 23% of homes in Toronto (2021 Census).

Where most people live in townhouses, apartments or condos, doors come in two kinds: the suite door you control and the shared entrances the building manages. A locksmith works on your door freely and coordinates with management on the rest.

Source: Statistics Canada, 2021 Census of Population

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Request a visit

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

Call now · open 24/7(289) 805-5275
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 20 years in business