Rekey or Replace? A Whitby Homeowner’s Straight Answer

Somebody has told you to change your locks. Maybe you just bought a house, maybe a relationship ended, maybe a keyring went missing. The advice you will get almost everywhere is “replace the locks” — and in the large majority of cases that advice is wrong and expensive.

There are two completely different jobs hiding behind the phrase “change the locks”, and knowing which one you need takes about a minute.

What Rekeying Actually Does

Inside a normal pin tumbler cylinder is a row of spring-loaded pin stacks. The correct key lifts every stack to exactly the right height, which lines up the shear line and lets the plug turn. Rekeying swaps those pins for a different combination of heights.

The result: a different key now turns your lock, and every key cut to the old combination stops working. Permanently. Whether you know those keys exist or not.

Nothing comes off the door. Your hardware, your finish, the fit in the frame — all unchanged. It is a change to the inside of a lock you already own.

When Rekeying Is The Right Answer

Rekey when the hardware works fine and the only problem is who has a key:

• You just bought the house and have no idea how many keys exist.
• A relationship ended and somebody still has one.
• A keyring was lost, especially with anything identifying attached.
• A renovation finished and contractors had access for months.
• A tenant moved out and the keys were not all returned.
• You have four different keys for four doors and want one.

In every one of those, the hardware is not the issue. Replacing it achieves exactly the same outcome as rekeying, for several times the cost.

When You Genuinely Should Replace

We would rather say this plainly than have you discover it later. Rekeying is wrong when the mechanism itself is failing or unsuitable:

• The key already needs jiggling. Fresh pins in a worn cylinder buys you months, not years.
• The latch does not retract fully every time. That is wear in the lock body, not the pinning.
• The finish has corroded through, or the plug wobbles.
• It is a knobset with no deadbolt beside it. Rekeying preserves a weakness rather than fixing it.
• You want a real security upgrade, a higher grade, or a smart lock.
• The cylinders are mismatched brands and cannot be pinned alike.

The Question Nobody Asks: Keyed Alike

Whichever route you take, ask for every exterior cylinder to be pinned to the same combination. One key for the front, the back, the side entry and the garage.

It costs nothing extra during a rekey and it is a change you notice every single day. Most homes accumulate keys the way they accumulate remote controls, and there is usually one on the ring nobody can identify any more.

The Doors People Forget

Homeowners rekey the front door and stop. The front door is almost never the way in.

The garage side entry is usually the cheapest lock on the property and it opens into an unobserved space. Once someone is in the garage, they are working on the door into the house out of sight of the street — and that door is very often a hollow interior door with a privacy handle on it.

Then there is the basement walk-out, the porch door, the shed with the tools in it, and the mailbox. On a rekey visit these cost very little extra because we are already there, and they are where the actual weakness sits.

And The Thing That Matters More Than Either

Whichever you choose, spend twenty dollars and twenty minutes on the frame. A standard strike plate is held by two short screws reaching only the jamb trim — a thin strip of wood nailed to the frame. One solid kick splits that trim and takes the strike with it, while your perfectly good deadbolt stays locked in a piece of broken timber.

A box strike with three-inch screws into the structural stud, plus long screws in the top hinge, changes a break-in from one quiet kick into a sustained noisy effort. It does more for a Whitby front door than any lock upgrade at the same price.

The One-Minute Version

Hardware fine, wrong people have keys? Rekey. Hardware worn, damaged or too weak? Replace. Either way, fix the strike plate and ask for keyed alike.

If somebody recommends replacement when nothing is wrong with your hardware, ask them why. There is a reasonable chance the answer is that replacement carries a parts margin and rekeying does not. See our new-home rekey service, or call 647-330-7919.