Rekeying & Door Knob Locks

Rekeying is the process of reconfiguring the pin tumbler stack inside your existing lock cylinder so that old keys no longer work and a fresh key cut operates it instead. It is not the same as replacing the entire lockset, and in many cases it is the smarter choice — especially when the hardware itself is in solid mechanical condition. Our technicians remove the cylinder, disassemble the plug, swap out the driver and key pins to match a new bitting, and reassemble everything before testing the new key through multiple full rotations. The result is a lock that behaves as though it was brand new from a key-control standpoint, without disturbing the finish, the door frame, or the existing latch mechanism. This matters especially for mortise lock assemblies, where the cylinder is integrated into a larger case that also controls the latch and sometimes a separate deadbolt — pulling the whole unit unnecessarily adds time and cost that simply is not warranted when only the key change is needed.

Common triggers for rekeying in the Salt Lake City area include moving into a previously rented property, ending a relationship with a housecleaner or contractor who held a key, losing a key in a public place like the TRAX station at Gallivan Plaza, or simply consolidating multiple door knob with lock sets in a home so that one key operates everything. Our technicians carry a full pin kit and can typically match cylinders across different locks on the same visit, giving you whole-home key consolidation in a single appointment. If you are unsure whether rekeying or full replacement is the right call, we will assess the hardware on-site and walk you through both options before any work begins — and we confirm an exact up-front price before we touch anything.

Not every door knob with lock deserves to be rekeyed. Spindle wear, a sticky latch bolt, a cracked rose plate, or a cylinder that wobbles in its housing are all signs that the lockset itself has reached the end of its service life. Forcing a rekey on a mechanically failing knob just delays an inevitable replacement and can leave you with an unreliable lock on a door you depend on daily. Our technicians stock a range of residential-grade Schlage and Kwikset knob sets, as well as lever-handle alternatives that meet ADA guidelines — useful for Salt Lake City rental property owners who need to stay compliant. For doors that require heavier-duty protection, we also install and service mortise lock assemblies, which use a rectangular case mortised into the door edge and offer a significantly stronger latch-bolt geometry than a standard knob prep.

One scenario worth calling out is the double lock door knob configuration sometimes found on older Salt Lake City apartment buildings — a knob that locks from both inside and outside with separate key operation. These assemblies can be tricky to source and require precise alignment during installation to avoid the cylinder binding in cold winter weather, which Utah residents know is a real problem when temperatures drop along the Wasatch Front. Our technicians are experienced with these older configurations and bring the tools and parts needed to handle them without damaging the door stile. If you have been dealing with a knob that freezes up or strips out every January, the right replacement — installed correctly — solves the problem for years.

A standard door knob lock works well for interior doors and secondary entries, but exterior doors on commercial properties or high-traffic residential units often benefit from a mortise lock. The mortise case is recessed into the door itself, spreading the load of a forced push or kick across a wider section of the door edge rather than concentrating stress on a single bolt. Our commercial locksmith team installs and services mortise lock hardware on storefronts, office suites, and multi-unit buildings across Salt Lake City — from the warehouses converting to creative office space in the Granary District to the retail corridor along State Street. Because the mortise case controls both the latch and the deadbolt from a single mechanism, it also simplifies master-key systems and access control upgrades down the road.

For property owners ready to move past physical keys entirely, we install smart lock door knob and keypad lock door knob models that integrate with common home automation platforms. These units replace the existing knob prep without requiring new door boring in most cases, making the upgrade clean and reversible. We also handle battery replacement, code reprogramming, and troubleshooting for existing smart knobs that have stopped responding. One thing to know: kiosk-based key duplication services — sometimes marketed as a quick stop inside a grocery store — can copy the shape of a physical key but cannot rekey your lock, upgrade your hardware, or respond when you are locked out at midnight. Our mobile team handles all of that, around the clock, and we come to you. If your situation cannot wait, call (801) 438-3704 — we answer 24/7.

Our mobile operation does not stop at residential and commercial doors. Vehicle locksmith services are a core part of what we do, covering car lockouts, broken key extraction from ignitions and door locks, transponder key cutting, and key fob programming for a wide range of makes and models. A key fob that stops responding after a battery swap is often a syncing issue rather than a hardware failure — our technicians carry the programming equipment to re-pair fobs to the vehicle's immobilizer system on-site, saving you the cost and hassle of a dealership trip. Transponder keys and smart key fobs require the correct onboard sequence to register with the car's ECU; this is not something a kiosk near you can replicate, regardless of how the service is marketed. If you have lost your only key fob or need a spare programmed, we can typically handle it the same day anywhere in the Salt Lake City metro area.