

Car keys · German Mills
Spare Car Key Duplication in German Mills
The paperwork for the used car changed hands last week, and the previous owner mentioned, almost as an afterthought, that a second key never turned up.
In 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 goesA car sits at the cottage all season, and the only key to it lives on a ring three hours away in the city. Every visit begins with the same small worry about whether that ring made it into the right bag.
Spare Car Key Duplication
How the visit goes


Looking at the working key itself
The existing key is examined for exactly what it is: a plain blade, a blade carrying a transponder chip, a remote head with buttons built into the plastic, or a proximity fob meant to stay in a pocket. Wear matters too; a blade that has thinned unevenly or a button that sticks tells the locksmith what to expect when it is time to trace or copy from it, and whether the original itself might be due for retirement once the spare exists. A key that has already been altered, filed or repaired is noted before it becomes the reference for a new copy.
Testing every key before the visit ends
Once cutting and programming are finished, each key is tested independently: every door lock, the trunk or hatch, the ignition or the start button, and any remote functions, with the other key set aside so neither test is quietly helped along by a second signal nearby. The vehicle is started and shut off more than once to rule out an intermittent fault, and remote buttons are pressed from a normal distance rather than pressed against the car. Only once both keys pass on their own is the appointment considered complete, rather than treating a single successful start as proof enough.
What a lost key means from here
With a tested spare in hand, a lost original is worth acting on without delay rather than setting aside: the household still has a working key for the vehicle, and the locksmith can remove the lost key's access from the immobilizer so it can no longer start the car if someone else finds it. That step only addresses the electronics, though, so if the lost key's blade could still turn a matching door cylinder by hand, that cylinder is worth rekeying at the same visit rather than left as it was.
Spare Car Key Duplication
In the van
Key gauge and calipers
Code-cutting machine
VIN and key-system reference
Coin-cell fob battery
Chip cloning tool

Spare Car Key Duplication
What affects the quote
Scheduling more than one vehicle together
Two vehicles booked into the same visit, such as a household's pair of cars, are generally more efficient to handle together than arranging two separate appointments on different days.
How many keys are needed
Making one spare is a smaller job than producing several matching keys for a whole household or a small fleet in the same appointment, and the quote reflects how many are wanted.
Sourcing the blank or shell
Common platforms use blanks kept in regular stock, while a less common model or an unusual shell sometimes has to be sourced specifically for that vehicle before work can begin.
What to have ready
- Is the current key showing any wear, cracks or a weak battery?
- Has the vehicle had an aftermarket alarm or remote starter installed?
- Does the key have buttons, a chip, or neither?
Spare Car Key Duplication: questions
QuestionsWhat if I have lost track of how many keys already exist for the car?
That is worth mentioning when you call, since it changes the plan. If the count is genuinely unknown, or a key was lost at some point and never accounted for, reprogramming the vehicle to accept only the keys currently in hand is often the sounder route, rather than adding a new spare on top of an uncertain set that might include a key nobody can locate anymore.
How should I store the spare once I have it?
Somewhere other than inside the vehicle, since a spare kept in the glovebox solves little if it is the vehicle itself that becomes inaccessible. A bag that travels separately, a drawer at home, or a trusted family member all work. A passive proximity spare also benefits from a signal-blocking pouch during storage, since that kind of fob keeps broadcasting even sitting untouched in a drawer; a standard button-operated remote does not need the same pouch.
Why does the VIN matter for making a spare key?
The VIN identifies the exact immobilizer generation and lock system your particular vehicle left the factory with, which decides whether the chip can be copied directly or needs to be freshly coded through the diagnostic port, and which blank and blade profile are correct. Two cars that look identical from the outside can use different systems a model year apart, so the VIN removes the guesswork.
Related services

- Car Key ReplacementAfter fifteen years the blade has worn to a smooth sliver.
- Key Fob ProgrammingButtons on the fob still light up and the remote still clicks, but the vehicle refuses to start even with the fob sitting in the cupholder.
- Transponder Key ProgrammingEvery key that ever opened the car is gone at once, one taken with a stolen bag, the spare misplaced months ago and never replaced.