
Car keys · London
Spare Car Key Duplication in London
A lockout last month ended with a locksmith opening the door and going home, and the same single key has been carried ever since with nothing behind it. The relief of getting back in faded within a week into the same exposure.
Call now · open 24/7(226) 777-6122In plain words
Driving on a single key means a lost pocket, a dropped bag or a worn blade can turn into a day without a car. A spare closes that gap while the original is still on hand to work from, which is the easiest moment to make one, since the vehicle, the lock system and a proven key are all present together. The locksmith matches the new blank to the blade profile, gives it the chip or code the immobilizer expects, and tests it apart from the original in every door and the ignition before calling the job finished.
How the visit goesThe proximity fob has ridden in a pocket for years, the range feels shorter than it used to, and a dashboard warning mentioned a battery a while back. Nobody has sorted out what happens on the day it finally goes dark.
Spare Car Key Duplication · London
How the visit goes

- 1
Assessing the fob's electronics
Where the key includes a remote or a proximity fob, the locksmith checks the battery, tests every button against the vehicle, and confirms whether functions like remote start, a panic alarm or a power hatch release are part of what the spare needs to reproduce. A fob that has been dropped or exposed to water sometimes still passes buttons but fails intermittently, which is worth knowing before it becomes the pattern a new key is measured against. Confirming the battery type while the shell is open also saves a second trip later when it eventually runs down on its own.
- 2
Giving the new key its electronic identity
A cut blade alone will turn the lock but will not start a car with an immobilizer, so the new key also needs the chip data the vehicle expects. Where the transponder supports it, the original's data is read and cloned onto a fresh chip directly, sometimes with the help of vehicle-specific data pulled from the car itself. Where cloning is not supported for that application, the locksmith instead connects to the vehicle's diagnostic port and walks the car's own security module through enrolling the new chip as an additional valid key, a process that can take longer but produces a key the vehicle recognizes on its own rather than one imitating another.
- 3
A record worth keeping
A short note of how many keys exist for the vehicle, what each one can do, and who holds it is a small thing to write down and a genuinely useful one to have later, whether that later is a private sale, an insurance question, or simply working out which key someone borrowed and forgot to return. This record also makes any future visit faster to start, since a returning locksmith or a different one entirely can begin from a known baseline instead of counting keys from scratch.
In the van
- Coin-cell fob battery
- Transponder chip
- Code-cutting machine
- Key blank matched to blade profile
- Remote-head key shell
What affects the quote
- 1
Copying versus diagnostic programming
Some vehicles allow the chip to be copied directly from the original in one step, while others need the locksmith to connect through the diagnostic port and have the vehicle's own module enrol a freshly coded chip, which takes longer at the car.
- 2
Choosing a limited-function spare
A simplified key built for a valet or a specific driver, without every remote feature the primary key carries, generally involves less programming than matching every function exactly.
- 3
Whether remote functions are included
A spare limited to the blade and chip that unlock and start the vehicle involves less programming than a full match of every remote button the original carries, and the quote follows whichever is chosen.
Same fees day, night or weekend.
Spare Car Key Duplication: questions
Is there a reason to make a spare now rather than waiting until the original is lost?
The whole process depends on having a working key to read or trace from, so making the spare while that key still exists is simpler than the alternative of proving ownership without any key present and building access from scratch. A spare made now also means a future lost key is solved by reaching for the second one already tested and waiting, rather than starting the whole process from nothing.
Is it possible to leave out certain functions on the spare, like remote start?
Yes. A spare can be built to do everything the first key does, or scaled back to just the blade and chip that unlock a door and start the engine, without a remote start button or a trunk release. This is agreed before programming begins and is a deliberate choice rather than a lesser copy, useful for a valet, a young driver, or anyone the household wants kept to essential access.
Does the new key need to be identical to the original?
Not necessarily. Most households want a spare that behaves exactly like the first key, and that is the default. Some prefer a simpler version for a particular driver, such as a mechanical key without remote buttons for a valet or a young driver. Either choice is a programming decision made at the start of the visit, and the resulting key is fully recognized by the vehicle either way.
Car Keys
Bigger photo, sooner job: Emergency Book soon Plan ahead
EmergencyCar Lockout ServiceYour toddler is buckled in the back seat, the doors locked when you shut yours, and your keys are on the front seat beside your…
EmergencyCar Key ReplacementYou bought the car privately and it came with a single key on a shoelace.
Key Fob Programming
Transponder Key Programming
Ignition Lock Repair
Spare Car Key Duplication near you
Middlesex, Ontario
London information
- Town
- London, Middlesex, Ontario
- In business
- 23 years
- Hours
- Open 24/7 · nights, weekends and holidays, same fees
- Phone
- (226) 777-6122
- 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.
Period hardware on older homes deserves matching parts, not a mismatched modern set. A locksmith who works among such houses keeps finishes and styles that suit them, so a repaired or replaced lock still looks like it belongs to the door.
49%
A mix of homes. Single-detached houses make up about 49% of homes in London (2021 Census).
Mixed housing means a locksmith sees a bungalow in the morning and a condo tower in the afternoon. The stocked van has house-door deadbolts, suite-door cylinders and the finishes for each, so neither kind of customer waits for a second visit.
Open 24/7
Request a visit
A lockout last month ended with a locksmith opening the door and going home, and the same single key has been carried ever since with nothing behind it.
Call now · open 24/7(226) 777-6122- On-site assessment preferred
- Same fees day, night or weekend
- 23 years in business