Can a Locksmith Make a Key From a Lock?

The technique is called 'key impressioning' or, in some cases, 'decoding.' A trained locksmith examines the lock cylinder itself — either by reading the existing cuts on the plug (if the lock can be disassembled) or by using specialized gauges and tools to measure each pin stack inside the cylinder. From those measurements, the locksmith determines the exact bitting code — the sequence of depths that a correctly cut key must have. That code is then used to cut a new key blank to precise specifications on a key-cutting machine. When done correctly, the new key operates the lock just as smoothly as the original ever did.

This process works on the majority of residential pin-tumbler locks, including common Kwikset and Schlage door knob lock and deadbolt cylinders. It also works on mortise locks, which are the larger, rectangular lock bodies recessed into the edge of the door and commonly found on older homes, storefronts, and historic commercial buildings. A mortise lock has more internal components than a standard cylindrical lock, so decoding one requires a locksmith with hands-on experience — but it is absolutely achievable and is a core part of what our team does every day across the Jeffersonville area.

Making a key from a lock is the ideal solution when you've simply lost all your copies and need access restored quickly — especially in an emergency locksmith situation where waiting is not an option. It preserves your existing hardware, avoids the cost of a full lock replacement, and gets you a functional key in a single visit. If your locks are in good condition and security hasn't been compromised, this is often the most efficient path forward.

That said, if your keys were stolen — or if you're moving into a home where you don't know how many copies of the original key exist — rekeying is usually the smarter choice. Many homeowners ask 'what does it mean to rekey a lock?' Here's the plain answer: rekeying changes the internal pin configuration of the lock cylinder so that old keys no longer work and a new key is cut to match the new configuration. You keep the same hardware, but you get a completely fresh key profile. Knowing how to rekey a lock to match an existing key is also useful when you want all the locks in your home to operate on a single key — a process called master keying. Our team can walk you through which option fits your situation before any work begins, and we confirm an exact up-front price so there are no surprises.

Not every lock is the same, and the type of hardware on your door directly affects the approach a locksmith takes. A door knob lock with a standard cylindrical format is the most common type in American homes — straightforward to decode or rekey. A mortise lock, by contrast, is a self-contained unit that houses the latch, deadbolt, and cylinder all in one body set into a deep pocket cut into the door edge. You'll find mortise locks on many older Fayette County homes, churches, and downtown storefronts. They're exceptionally durable, but servicing them correctly requires a locksmith who understands their internal geometry. Our team works on mortise locks regularly — cutting keys from the cylinder, replacing worn components, and rekeying them when security demands it.

Beyond residential doors, we also work on padlocks, cabinet locks, garage side doors, and vehicle locks. Car key situations are a category of their own: if you've lost your only car key, whether it's a basic cut key or a modern transponder key with a chip, our mobile team can often produce a replacement on-site. The factors that determine your final quote — vehicle make and model, key type, whether programming is required, time of day, and travel distance — are all discussed with you upfront before we do anything. If you're in a bind right now, call us at (740) 754-0038 and we'll tell you exactly what we can do and what it will cost.

A question that comes up often is whether a locksmith can simply pick a lock open instead of making a key. Picking is a legitimate professional technique, but it's a means to an end — it allows entry, not necessarily a working key. A good locksmith will pick or manipulate a lock to gain access when needed (such as during a lockout), then transition to the key-cutting or rekeying step to give you a long-term solution. We want to be straightforward: we do not share lock-picking techniques with the public, and we verify ownership before performing any work on a property or vehicle. That's not a legal formality — it's how responsible, insured locksmiths protect you and your neighbors.

There are a handful of situations where cutting a key from the lock isn't possible without additional steps. Some high-security locks use patented keyways and require the key to be ordered through specific channels. Certain smart locks and electronic deadbolts don't use traditional cut keys at all. And occasionally a lock is so worn or damaged that it needs to be replaced rather than decoded. In those cases, we'll tell you clearly — and we can handle the replacement too, including sourcing and installing the right hardware for your door type, whether it's a residential deadbolt, a commercial-grade mortise lock, or something in between.

Whether you need a key made from your lock, a rekey after moving into a new home, or a full hardware upgrade, our mobile team covers the Jeffersonville area around the clock. Here is a look at the specific services we provide so you know exactly what to ask for: Residential key cutting from existing lock cylinder | Residential lock rekeying | Mortise lock service and key cutting | Door knob lock rekey and replacement | Deadbolt installation and rekeying | Master key system setup | House lockout response | Garage door lock service | Sliding door lock installation | Window lock installation | Mailbox lock replacement | Padlock keying and replacement | Safe opening and combination change | File cabinet lock replacement | Interior door lock installation | Commercial locksmith services | Commercial mortise lock installation and repair | Office building rekey | Storefront door lock service | Push bar and panic hardware installation | Access control consultation | Car lockout service | Car key cutting (standard and laser-cut) | Transponder key programming | Ignition lock cylinder service | Motorcycle key cutting | Spare key duplication | Lock hardware upgrade consultation | Emergency locksmith response 24/7 | Broken key extraction That list covers the vast majority of what homeowners, renters, and small business owners in and around Jeffersonville run into. If your situation isn't listed, call us anyway — chances are we can help or point you in the right direction.