Door Knob Lock & Deadbolt Rekey

When you take possession of a property — whether you're a new homeowner off Sunset Boulevard or a property manager handing over a unit in East Hollywood — the previous keyholder's access doesn't end automatically. Landlords in California are actually required by law to provide new tenants with fresh keys or re-keyed locks at the start of a tenancy, but enforcement is inconsistent and self-managed properties often fall through the cracks. Re-keying a door knob with lock and key is the single fastest, most cost-effective way to draw a firm security boundary between what happened before you moved in and what happens after.

Beyond tenant changes, re-keying makes sense after a break-in attempt, a lost or stolen key, a contractor rotation, or any time you've given out temporary access and want to reclaim sole control. Our technicians verify ownership or authorization before any work begins — that verification step is something you should expect from any legitimate locksmith team and it's a firm part of our process. Once confirmed, we repin the lock cylinder to a new key code using manufacturer-matched pins, keeping the existing hardware intact and your door frame untouched.

Los Angeles has an unusually wide range of lock hardware because of its architectural diversity. A 1920s Koreatown apartment building might have a full mortise lock assembly — a rectangular cartridge set deep into the door edge that combines latch, deadbolt, and sometimes a knob or lever all in one unit. A newer construction condo in Playa Vista likely runs a standard Kwikset or Schlage cylindrical deadbolt paired with a separate door knob with lock below it. Both systems are re-keyable; both require a different skill set and a different set of pins and tools. Our technicians carry parts for a wide range of pin tumbler, wafer, and mortise lock cylinders so that a single visit typically resolves everything without a return trip.

We also service double lock door knob assemblies — the kind with a keyed cylinder on both the inside and outside — which are common on rear entries and utility doors throughout the San Fernando Valley and South LA. For properties that have already moved toward keyless entry, we can re-code or replace smart lock door knob units as well, including rekeying the mechanical backup cylinder that most smart locks retain for emergency access. Our services span residential, multi-family, and commercial properties, and our commercial locksmith capabilities extend to master key systems, high-security cylinders, and restricted keyways for businesses that need tiered access control across multiple entry points.

When you call (323) 435-8547, a team member gathers the basic details: your location in the LA area, the type and number of locks, and whether the situation is urgent. From there, the factors that shape your final price are straightforward — the type of lock hardware involved (a basic knob lock costs less to rekey than a commercial-grade mortise lock cylinder), the number of locks on the property, the time of day since emergency locksmith calls after hours carry a different rate, and the travel distance to your address. We confirm an exact up-front price before any work begins, so there are no surprises on the invoice.

A technician arrives at your location with a full rekey kit, removes the cylinder from the door without disassembling the entire knob or lever set, replaces the driver and key pins to match a new key cut, reassembles and tests the lock, and hands you the new keys — typically two or more depending on what you need. If an existing lock is worn, damaged, or simply not worth rekeying (sometimes an older mortise lock body has a cracked cam or a deadbolt tailpiece that's failing), the technician will tell you on the spot and quote a replacement before touching anything. We do not perform unnecessary work, and we do not push upgrades you don't need. Call us at (323) 435-8547 any time — we answer 24/7.

Key kiosks positioned in grocery stores and home improvement retailers can duplicate an existing cut key, but they cannot rekey a lock, diagnose a worn cylinder, service a mortise lock, or respond to an emergency locksmith situation at 2 a.m. in Boyle Heights. They also cannot verify that the key you're copying is one you're authorized to duplicate — a meaningful gap in security for landlords and property managers. Our technicians are trained and insured, arrive in clearly identified mobile service vehicles, carry a professional inventory of lock hardware, and operate under a verifiable business identity you can confirm before work begins.

There's also the question of what to do when a lock is more complex than a standard door knob with lock for a bedroom or front entry. Mortise lock bodies, high-security cylinders with anti-pick and anti-drill features, and double-cylinder deadbolts all require hands-on expertise that no automated kiosk can provide. If your property has been broken into and you're asking yourself about how to pick a door knob lock to understand your vulnerability — stop at understanding that standard pin tumbler locks have well-known weaknesses, and upgrade to a pick-resistant cylinder or a Grade 1 deadbolt instead of relying on your existing hardware. Our team can walk you through the right hardware choice for your specific door and threat profile, then install and key it on the same visit.

Los Angeles Locksmith provides a full range of residential, commercial, and emergency services across the greater LA area. Here is a clear picture of what our trained technicians handle every day: residential door knob lock rekey, deadbolt rekey, mortise lock rekey and replacement, master key system setup and re-keying, high-security cylinder installation (Medeco, Mul-T-Lock, Abloy), smart lock door knob programming and mechanical cylinder backup rekey, keypad and electronic access control service, double lock door knob replacement and rekey, interior door lock installation for bedrooms and bathrooms, sliding door lock repair and replacement, mailbox lock rekey, padlock rekey and replacement, garage door lock service, file cabinet and desk lock service, commercial mortise lock installation and replacement, commercial lockout service, office master key systems, access control card reader installation, push bar and panic hardware installation, door closer and hardware adjustment, vehicle lockout service, broken key extraction from any lock type, lock repair for damaged or worn cylinders, emergency locksmith response 24 hours a day 7 days a week, and post-break-in security assessment with hardware upgrade recommendations. If your specific need is not listed here, call us — our technicians handle a wide variety of lock and door hardware situations beyond this list.