Skip to content
Lambeth Lock & Key Co.Request a visit
Open 24/7(226) 785-2980Call now
Technician holding a remote key with an extended blade beside a silver car. — Car Key Replacement, London

Emergency Car keys · London

Car Key Replacement

After fifteen years the blade has worn to a smooth sliver. It needs a jiggle in the ignition most mornings, this week it took three tries, and a copy cut from that same worn key would only carry the wear forward.

Call now · open 24/7(226) 785-2980

Request a visit

In plain words

Older vehicles without an immobilizer are a pleasure to key, but whether a given car has one is checked rather than assumed from age, since several early-2000s vehicles already shipped with a factory immobilizer. Where a car genuinely needs only a blade, it is cut to the factory code or to a reading of the lock rather than copied from a worn original, so it seats cleanly in an ignition that has seen twenty winters. Where the ignition wafers are tired, the locksmith can say so and service the cylinder in the same visit. The result is a key that turns like the car was new, without the daily jiggle.

Sound familiar?

The car is yours now, but somebody else still holds a key to it. Adding another key is not enough; you want the old ones to stop working the vehicle so the question is settled for good.

How the visit goes

Car Key Replacement · London

How the visit goes

Technician in a cap and glasses holding a small key fob beside the dashboard of a black motorcycle in a garage.
  1. 1

    The locks and ignition, not only the key

    A new key is only as good as the cylinders it turns, so the check looks at the car too. A door lock that has gone unused for years on a keyless vehicle can be stiff with salt and grit; an ignition that needed a jiggle with the old key has worn wafers that will feel tight with a fresh blade; a previous replacement may have left the doors and ignition on different cuts. Aftermarket alarms and remote starters can also sit between the key and the immobilizer. Spotting these early lets the locksmith bring the right parts and explain what else the car may need so the new key feels right.

  2. 2

    Programming the transponder through the diagnostic port

    With the blade cut, the electronic half of the job begins. On a vehicle with OBD-programmable keys, the locksmith connects a programming tool to the diagnostic port under the dash, selects the exact vehicle and immobilizer system, and starts a session that introduces the new transponder to the car. Some systems accept the key in moments; others enforce a security wait timer, or ask for a PIN that the tool reads from the vehicle or that is obtained through the manufacturer's secure-data route. The key is cycled in the ignition or held to the start button when prompted, and the tool confirms the number of keys the car now recognizes.

  3. 3

    Keys that work every lock on the car

    You leave with keys that have been tried, not merely programmed. Each one has opened the doors, turned or woken the ignition, started the engine and worked every button it carries, and you have watched it happen. If the car has a mechanical lock that was stiff, it has been freed and lubricated so the blade is a genuine backup. Should the old key have been rebuilt around its original electronics, it has been through the same checks as a brand-new one. The point of the routine is simple: the next time you reach for the key, there is nothing to wonder about.

In the van

  • OBD programming tool
  • Security PIN or secure-data access
  • Transponder key blank
  • Vehicle battery maintainer
  • Laser-style milling cutter

What affects the quote

  1. 1

    Condition of the locks and ignition

    A door cylinder seized with salt or an ignition with worn wafers may need freeing, servicing or rebuilding for the new key to feel right. That work is quoted as its own item alongside the key.

  2. 2

    Battery and access to the car

    A flat vehicle battery needs a maintainer during programming, and a locked car with no key has to be opened before the diagnostic port can be reached. Both are small items that the quote names plainly.

  3. 3

    Extracting a broken key

    Drawing a snapped blade out of a door or ignition cylinder without harm to the lock is a separate piece of work, done before the new key is cut, and it appears on the quote as its own line.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(226) 785-2980

Car Key Replacement: questions

Advice · (226) 785-2980

Can the key I lost still start my car?

Until it is erased, yes, because the immobilizer still recognizes its chip. During the programming session the locksmith can remove every key from the car's memory except the ones in your hand, and unpair the old remote as well. After that the lost key is a blade that opens a door at most, and nothing else. If that blade worries you, changing or rekeying every mechanical cylinder it operates, doors and ignition, plus a trunk, tailgate, fuel door or glovebox where the car has one, finishes the job.

After a break-in the doors and ignition are on different keys. Can that be fixed?

Yes. When a door lock is forced and replaced, or an ignition is swapped, the car can end up needing two blades. A locksmith can rekey the replacement cylinder to match the surviving one, so a single key operates every lock again, and cut new keys to that combination. The transponder side is unchanged by the lock work, so your existing programmed keys carry on starting the car once the blades match.

Are there vehicles where the dealer has to be involved?

A few. Some manufacturers lock key programming behind data or tooling that only their dealer network can run, particularly on the newest models and on certain all-keys-lost situations. The locksmith checks your VIN against what the equipment supports before the visit and tells you plainly if the dealer route applies. Even then, the locksmith can often cut the emergency blade, open the car and handle the mechanical side so the dealer step is a small one.

Car Key Replacement near you

Middlesex, Ontario

London information

Town
London, Middlesex, Ontario
In business
15 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.

Layers of paint build up on older doors and frames, and a lock that seemed to fail is sometimes a latch glued shut by the last coat. Part of the visit in an older area is freeing hardware, cleaning the edges and checking the door swings true.

49%

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

In mixed neighbourhoods, a family may move from an apartment to a house or the other way around. A locksmith who knows both kinds of door can rekey the old place for the next occupant and set up the new one on the same visit.

Source: Statistics Canada, 2021 Census of Population

Open London in Google Maps

Open 24/7

Request a visit

After fifteen years the blade has worn to a smooth sliver.

Call now · open 24/7(226) 785-2980
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 15 years in business