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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, Southdale

Emergency Lockouts · Southdale

Seized & Jammed Lock Opening in Southdale

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.

Call now · open 24/7(226) 777-6122

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In plain words

Many jammed locks are not lock problems at all. Wood doors swell in humid weather and shrink in dry winter air, hinges loosen and let the door drop, and a strike plate that was fine in spring is a few millimetres out by autumn. When that happens the bolt is squeezed in its pocket and the key cannot move it. The locksmith checks this first by loading the door in different directions while working the key, and by comparing how the lock behaves with the door open. If the door is the cause, the opening is gentle and the lasting fix is a hinge, strike or seal adjustment.

Sound familiar?

You are inside, the deadbolt is thrown, and the thumb-turn will not budge. It moved a little last week with some effort. Now the door you walk through every day is a wall, and you need it open.

How the visit goes

Seized & Jammed Lock Opening · Southdale

How the visit goes

Double glass doors in metal frames with a horizontal push bar, beside a brick wall, with a parking lot and trees outside. — Southdale
  1. 1

    Which of the three families it belongs to

    Every jammed lock falls into one of three groups, and sorting it is the whole diagnosis. A key that enters fully and will not turn points to the cylinder: grit, ice, corrosion, dried lubricant or a plug that has not returned to its neutral position with the shell. A key that turns freely and moves nothing points to the connection behind the cylinder, the tailpiece or cam, or to a broken hub in a mortise case. A key that works only when the door is pushed, pulled or lifted points past the lock entirely to the door and its strike. Each group has its own opening method and its own repair.

  2. 2

    Thawing ice and clearing salt

    Ice is melted, never chipped. A lock de-icer or gentle warmth on the cylinder face turns the frozen meltwater back to liquid so it can drain, and the key is then worked until the plug turns. Boiling water is kept well away, because it refreezes inside and can crack cold brass. Salt crust is flushed out with contact cleaner and the plug is dried thoroughly before any lubricant goes in, since salt and moisture sealed under lubricant keep corroding. The cylinder is then dressed with the lubricant specified for that product, applied once everything is dry. If the weatherstrip has frozen to the door, that bond is released and the seal wiped.

  3. 3

    Keys that match the lock again

    Where a worn or drifted key was part of the jam, you now hold a key cut from the code or from a fresh master, and every spare has been tried in the lock. Retire copies that needed force, and cut future spares from the good key rather than from each other, since each generation of copying adds error. Label the keys if several locks are involved. If the cylinder was replaced and pinned to your existing key, the whole house is still on one key. Keeping a written note of the keyway and, where it exists, the key code makes any future key a simple cut.

In the van

  • Replacement tailpiece or cam
  • Dry PTFE or graphite lock lubricant
  • Replacement cylinder
  • Mortise case spring and hub
  • Penetrating lubricant

What affects the quote

  1. 1

    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.

  2. 2

    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.

  3. 3

    Ice and salt on the day

    A cylinder frozen solid or crusted with salt needs thawing, flushing and drying before it can even be diagnosed, and a winter call is quoted with that time in mind.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(226) 777-6122

Seized & Jammed Lock Opening: questions

Advice · (226) 777-6122

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.

Why is it always the shaded side of the building that seizes?

The face of a building that never sees direct sun stays colder and damper, so ice in a keyway lasts days longer there and condensation sits in the cylinder rather than drying off. Wind-driven rain and snow tend to hit the same face. Those doors deserve a keyhole cover, a storm door where one fits, and a lubricant check before the season turns, and they are often the first lock a locksmith asks about.

Can an old mortise lock in a century home be serviced rather than replaced?

Often, and keeping the original hardware is usually worth trying first, since it fits the door and suits the house, though condition and the availability of matching parts decide whether a repair is realistic. The case comes out of the door edge, the decades of dust and hardened grease are cleaned away, a broken spring or worn hub is replaced with a matching part, and the contact surfaces get fresh grease. If a bit key or a cylinder has worn, a new key is cut or the cylinder rebuilt.

Middlesex, Ontario

Southdale information

Town
Southdale, Middlesex, Ontario
In business
23 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

52%

Older homes. About 52% of homes in London were built in 1980 or earlier, according to the 2021 Census.

Where most homes were built decades ago, doors often still carry their original mortise locks and brass knobs. That hardware can usually be cleaned, re-sprung and kept in service, with a modern deadbolt added above it for strength without losing the look.

49%

A mix of homes. Single-detached houses make up about 49% of homes in London (2021 Census).

Where the housing is mixed, expectations about what can be changed differ. A homeowner in a house decides everything; a condo owner works within house rules on the outer face. The locksmith knows which conversation to have at which door.

Source: Statistics Canada, 2021 Census of Population

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Request a visit

It is the coldest morning of the winter and the key goes halfway into the side door and stops.

Call now · open 24/7(226) 777-6122
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 23 years in business