

Car keys · Cundles
Spare Car Key Duplication in Cundles
One key opens the car, starts the car, and rides in one pocket every day.
In plain words
Households with more than one driver and one car key end up trading it back and forth, which works until two people need the vehicle at once. Making a second key from the original lets each driver carry their own, cut from the same blade profile and carrying the same chip or code the immobilizer recognizes, so neither key behaves differently from the other. The locksmith tests both apart from each other in the doors and the ignition before handing them back, and a family running two vehicles on the same lock family can sometimes be brought onto one key altogether.
How the visit goesOne key opens the car, starts the car, and rides in one pocket every day. Nothing backs it up. A dropped storm drain, a torn pocket or a moment of distraction would leave the household without a way to drive anywhere tonight.
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.
Matching a remote head or fob
When the original carries buttons for locking, unlocking or remote start, the new key or fob is programmed to the vehicle's receiver so those same functions respond from the spare. This usually means putting the vehicle into a programming sequence from inside the cabin, then pressing the new remote's buttons in the order the manufacturer specifies. Some platforms allow this through the doors and ignition alone; others need the diagnostic port involved as well, particularly when the remote functions are tied into the same module that manages the immobilizer, so the two steps happen together rather than separately.
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.
Spare Car Key Duplication
In the van
Key blank matched to blade profile
VIN and key-system reference
Transponder chip
Remote-head key shell
Deburring file

Spare Car Key Duplication
What affects the quote
Authorization documentation
A vehicle registered to a business, financed through a lender, or owned by a family member sometimes needs an extra document confirming who may hold a key, which is sorted out before work begins.
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.
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.
What to have ready
- Do you currently have one working key, or more than one?
- How many spare keys would you like made?
- What year, make and model is the vehicle?
Spare Car Key Duplication: questions
QuestionsShould I get the locks rekeyed when I get a spare, or is that a different service?
They are related but not identical, since a car's door and ignition locks are a separate mechanical layer from the immobilizer even though both systems usually get touched in the same visit. Making a spare and removing a genuinely unaccounted-for key's electronic access are handled together, and if that lost key's blade could still turn a matching door cylinder by hand, the locksmith rekeys that cylinder as part of the same appointment.
Does cold weather affect a key fob?
Yes, in a couple of small ways. Battery performance drops in cold temperatures, so a fob that already had a fading battery is more likely to act up on a cold morning, and a proximity system's range can feel shorter in the cold as well. Testing a spare's battery before winter, and keeping a spare battery on hand, avoids being caught out by either.
How is the electronic chip handled during duplication?
Where the transponder supports it, the chip in the working key is read and its data cloned onto a fresh chip, sometimes with vehicle-specific data pulled from the car to help. Where cloning is not supported for that particular vehicle and chip, the locksmith instead connects through the diagnostic port and has the car's own security module enrol a freshly coded chip as a new, independently authorized key.
Related services

- Car Key ReplacementYou bought the car privately and it came with a single key on a shoelace.
- Key Fob ProgrammingEvery fob for the car disappeared at once inside a bag that was never recovered, and the vehicle now sits in the driveway with no way in and no way to start it.
- Transponder Key ProgrammingThe remote fob has gone silent, the doors won't unlock with a button press, and the little emergency blade tucked inside it has not been used since the day the car was bought.