Most people don’t think twice about a spare key until they need one. A roommate moves in, a spare goes missing, or a single house key becomes the only thing standing between you and a locked front door. That’s usually the moment the question comes up: can this key actually be copied, and how fast? The honest answer is that it depends entirely on the key in your hand. Some keys are cut in under a minute. Others require special blanks, electronics, or authorization. Knowing the difference saves you a wasted trip and a lot of frustration.
Standard House Keys Are the Easy Ones
The everyday brass key that opens your deadbolt or door knob is the simplest thing in the world to duplicate. It has no chip, no electronics, and no restrictions. A locksmith reads the cuts along the blade, matches a blank, and reproduces it precisely. If you’ve ever wondered why some hardware-store copies stick or rattle, it usually comes down to a worn blank or a machine that wasn’t calibrated. Precision matters more than most people expect, because a slightly off copy will wear your lock cylinder faster and eventually stop turning.
If you want spares that work smoothly for years, it’s worth having them cut properly the first time. For homeowners planning ahead, pairing fresh copies with a proper lock check or upgrade is a smart move, especially on older hardware that has taken years of daily use.
High-Security and “Do Not Duplicate” Keys
Not every key is meant to be copied by just anyone. High-security keys, often found in office buildings and newer condos, use patented keyways and restricted blanks. These are designed so that a copy can only be made by an authorized dealer with proof of ownership. That restriction is a feature, not an obstacle: it stops former tenants, contractors, or ex-employees from quietly making their own spares.
If your key is stamped “Do Not Duplicate,” that stamp is a request, not a lock. A patented restricted key, on the other hand, genuinely cannot be reproduced without the right credentials and equipment. When you’re dealing with keys like these, the right step is often a professional residential locksmith consultation to confirm what system you have and whether a controlled-key setup makes sense for your property.
Car Keys Are a Different World
Modern car keys are where the “just copy it at the counter” idea falls apart. Most vehicles built in the last two decades use transponder chips, and many now use proximity fobs that talk to the car electronically. Cutting the metal blade is only half the job; the chip inside has to be programmed to match your vehicle’s immobilizer, or the engine simply won’t start.
This is why a hardware-store copy of a car key often turns the ignition but goes nowhere. A qualified automotive locksmith has the tooling to cut the blade, program the chip, and sync a fob to your specific make and model. It’s precise work, and it’s exactly the kind of thing that should be handled by someone who does it every day.
What You’ll Need to Bring
To make the process smooth, come prepared. For a house key, bring the original if you have it; copying from a copy compounds small errors. For a restricted or high-security key, expect to show proof that you’re authorized to hold it. For a car key, you’ll generally need the vehicle present and proof of ownership, because programming ties directly to that specific car.
Locksmith On Time works across Ottawa and surrounding communities including Kanata, Nepean, Orleans, Barrhaven, Stittsville, and Manotick, so getting a proper copy made doesn’t have to mean crossing the city.
When a Copy Isn’t the Right Answer
Sometimes duplication isn’t the solution at all. If you’ve lost track of how many spares exist, or you just moved into a home and can’t be sure who still holds a key, copying an existing key only spreads the risk further. In those cases, rekeying the lock is smarter than adding more copies. Rekeying resets the internal pins so old keys stop working, and you get a fresh set. A short conversation with a technician can tell you whether you need three more spares or a clean slate.
Frequently Asked Questions
Can any locksmith copy my key while I wait?
Standard house keys, yes, usually on the spot. Restricted high-security keys require authorization, and car keys with chips need programming time. The technician can tell you which category your key falls into as soon as they see it.
Why did my copied key stop working after a few weeks?
A poorly cut copy puts extra stress on the lock’s pins and wafers. If a copy is even slightly off, it wears both the key and the cylinder, and eventually one gives out. A precise cut from a quality blank avoids this.
Is it worth copying a car key, or should I get a replacement?
If you have a working original, a properly cut and programmed spare is a great backup that saves you from a future lockout. If you’ve lost all your keys, that becomes a full replacement job rather than a simple copy.
Do you cut keys for locations outside central Ottawa?
Yes. Locksmith On Time serves the wider Ottawa area, including Kanata, Nepean, Orleans, Barrhaven, and nearby communities, with mobile service that comes to you.
What should I do if I can’t tell what kind of key I have?
Bring it, or send a photo, and a technician can identify it quickly. You can reach the team at 613.777.3487 to confirm before making the trip.
Getting a spare cut is one of the smallest security investments you can make, and one of the most useful. Whether it’s a simple house key or a chipped car fob, having the right copy made correctly means you’re never one lost key away from being locked out.
