What a replacement involves
Most keys made in the last two decades are more than a piece of cut metal. Many carry a transponder chip that the car has to recognize before the engine will start, and many newer vehicles use a remote or a proximity (push-to-start) key. A replacement therefore usually has two parts: cutting the blade to match your locks, and programming the key so the vehicle accepts it.
We work out which of those your vehicle needs from its year, make and model before we head out, so you know what the visit will look like.
Keys we commonly replace
- Traditional metal keys and high-security (laser-cut / sidewinder) blades
- Transponder chip keys
- Remote-head keys and flip keys
- Smart keys and proximity fobs for push-to-start vehicles
Compatibility depends on the specific year, model and key system, so we confirm your vehicle when you call rather than promising every car in advance.
Why mobile beats a tow
Without a working key, getting a car to a dealership often means a tow off the island and a wait for an appointment. A mobile locksmith brings the key machine and programming equipment to the car — at home on the North End, in a Town Center lot, or at the I-90 park & ride.
Locksmith or dealership?
A dealership can make a replacement key, but usually only with the car on their lot — which, without a working key, means a tow off the island — and often after ordering the key and booking a service appointment.
A mobile automotive locksmith brings the key machine and programming tools to the car. For most vehicles that means the key is made and tested in one visit, wherever the car is parked.
What happens when we arrive
- We check your photo ID and proof of ownership.
- We identify the exact key system for your vehicle’s year and model.
- The blade is cut — copied from an existing key, or produced from the vehicle’s key code.
- The key is programmed to the car where the vehicle requires it.
- We test the doors, ignition and remote functions with you before we leave.
Where we make keys on Mercer Island
Home driveways and garages from the North End to the South End, Town Center parking lots, the I-90 corridor and the Mercer Island light rail station park-and-ride garage. Give us the address or nearest cross-street and we will come to the car.
Common questions
Do you need the original key to make a replacement?
No. If you still have a working key we can usually copy it, but if every key is gone we can generate a new one from the vehicle itself. See our lost car keys service for that situation.
What information should I have ready when I call?
The year, make and model of the vehicle, where it is parked on Mercer Island, and — if you can reach it — the VIN from your registration or insurance card. We will also ask for ID and proof of ownership before making a key.
Can you replace a key for any car?
We cover a wide range of makes and models, but not every one. Key systems vary by year and trim, so we confirm your exact vehicle on the phone before dispatching.
Can a locksmith make a car key without the original?
Yes, for most vehicles. The blade can be cut from the vehicle’s key code or decoded from the lock, and the key is then programmed to the car. We confirm your specific vehicle when you call.
Is a locksmith key as good as a dealer key?
A properly cut and programmed key works the same way as the original: it opens the doors, starts the engine and runs the remote functions your key system supports. We test every function with you before we leave.
How long does a replacement take?
It depends on the key system. Copying a basic key is quick; programming a smart key takes longer. We give you a realistic idea on the phone once we know the vehicle.