
Change or rekey · Peterborough
Lock Rekeying
Your roommate moved out last weekend. Rent is settled, the room is empty, and the key is still on their ring.
Lock Rekeying
In plain words
Rekeying is really about knowing who can open your door. Over the life of a home, keys are lent to trades, handed to neighbours for the holidays, given to a cleaner or a dog walker, and copied at the hardware store. Nobody keeps a list. Rekeying draws a line: from today, the only working keys are the ones counted into your hand. Good practice afterwards is simple, and a locksmith will suggest it: know how many keys exist, know who holds each one, tag them with a colour or code rather than the address, and rekey again whenever a key leaves your control.
How the visit goesEvery copy of your house key seems to work a little differently. One needs a jiggle, another sticks halfway, and the original wore down years ago. The lock itself is fine; the keys have drifted so far from each other that none fits cleanly.
Peterborough
How the visit goes
Deciding the key groups
Not every door in a home needs to answer to the same key, and the plan is written down before work starts. Most households want the exterior doors keyed alike so one key does everything. Some want exceptions: a basement suite on its own key, a home office or a storage room that visitors should not enter, a shed on a separate key that can be lent out without exposing the house. The locksmith sketches the groups with you, notes how many keys each group needs and who will hold them, and only then begins removing cylinders. Getting this straight first means no cylinder is pinned twice.
When a cylinder is swapped instead of repinned
Sometimes the right move for a particular door is a new cylinder rather than new pins, and the locksmith says so before doing it. A cylinder with a keyway that cannot join the household key is replaced with one that can. A plug that has worn oval, springs that have collapsed, or a cylinder someone has already drilled is replaced because fresh pins would not fix its feel. In each case the replacement is pinned to the same new key as the rest of the house, so the swap is invisible in daily use. The old cylinder is handed to you or taken away as you prefer.
Handing keys out with a little method
Rekeying gives you a clean start on who holds a key, and a few habits keep it clean. Give a key only to people who need one regularly, and know who they are. If a dog walker, a cleaner or a contractor needs access for a season, a lockbox with a code you can change afterwards is simpler than a key you have to ask for back. Tag spares with a colour or a number rather than the address. When a key does leave your control, a lost ring, a departing tenant, a relationship that has ended, that is the trigger to rekey again, and the next visit is simpler because the doors are already on one system.
Lock Rekeying
In the van
- Graded bottom pin kit
- Key gauge
- Code cutter or key duplicator
- Retaining clip tool
- Pinning tweezers and tray
What affects the quote
Same fees day, night or weekend
1Mismatched keyways needing a cylinder swap
Where one door's cylinder cannot take the key the other doors share, a compatible replacement cylinder is fitted and pinned to match, and that hardware appears as its own line in the quote.
2Travel to the property
Every visit includes the drive. A home across town and a rural property at the end of a long road involve different travel time, and the quote reflects the trip as well as the bench work.
3Records, tags and labelled key sets
A homeowner needs a short note. A property manager may want a keying chart, tagged sets for each suite and a key-issuance log, which is more office work and is quoted as such.
Lock Rekeying: questions
My house is older and has a mortise lock. Can that be rekeyed?
Yes. A mortise lock, the kind with a large case set into the edge of the door, uses a threaded cylinder held by a set screw reached from the door's edge. The cylinder unthreads, is pinned like any other and screws back in. Where a very old lock uses a bit key or a lever mechanism instead of a pin cylinder, the locksmith will explain the options, which may include fitting a modern cylinder into the existing case so the door keeps its original hardware.
One of my locks is stiff and worn. Can it still be rekeyed?
Often the stiffness is grit, old oil and tired springs rather than real wear, and those are handled while the cylinder is on the bench: the plug is cleaned, new springs go in with the new pins, and a dry lubricant finishes it. If the plug has worn oval or the housing is damaged, the locksmith shows you and suggests a replacement cylinder pinned to the same key, rather than fresh pins in a lock that will keep dragging.
Can I keep one door on a different key from the rest?
Yes, and it is common. A basement suite or in-law apartment often gets its own key so the tenant's key opens their door and nothing else, while your key opens the main house. A home office, a storage room or a shed can be kept separate for the same reason. The locksmith sets up the groups you want, pins each accordingly and tags the keys so the separate one is not mixed into the household set.
Change or Rekey Locks

- Lock Replacement & UpgradeSomeone tried the back door while you were away.
- Vintage Mortise Lock ServiceThe old skeleton key still fits the keyhole, but it now needs a jiggle, a lean on the door and a…
- Smart Lock InstallationThe rental turns over every few months and each time you drive across town to swap keys, then…
Lock Rekeying near you
From the front door of a house to the back door of a warehouse, the work in Peterborough comes down to a few families of jobs: getting in, changing who can get in, making it harder for the wrong people to get in, and keeping the hardware turning smoothly year after year. Browse the list to find yours.