Door Knob Lock & Deadbolt Rekey
When you move into a new home near Hyde Park or hand off keys to a tenant in Oakley, you have no way of knowing who else has a copy of your current keys — and that uncertainty is a real security risk. Rekeying your door knob lock and deadbolt is the most direct, cost-effective way to close that gap: a trained technician realigns the pin tumblers inside the existing cylinder so that every old key is instantly useless and a fresh set of keys is the only one that works.
Open 24 hours, 7 days a week · Licensed, bonded & insured

Top Cincinnati Locksmith is a fully mobile, 24/7 service — we come to you, whether you are standing on a porch in Mount Lookout at 2 a.m. or wrapping up a property closing in Blue Ash on a Saturday afternoon. Our insured, experienced technicians handle everything from a single knob lock on an interior bedroom door to a full-building rekey covering mortise locks, deadbolts, and commercial-grade hardware. No trip to a hardware store, no waiting days for an appointment — we confirm an exact up-front price before any work begins, then handle the job with precision so your door frame and finish stay intact.
What we do
Available 24/7
Day, night, weekends and holidays — a real local locksmith answers and rolls a fully-stocked van.
Fast local response
Based in Cincinnati, we reach the Cincinnati area in well under an hour.
Insured & background-checked
Vetted technicians, up-front pricing, and no surprise add-ons when we arrive.
Damage-free entry
We pick and bypass locks the right way, so most lockouts are solved without drilling anything.
Why a Door Knob Lock Rekey Is Smarter Than a Full Replacement
Most homeowners assume that changing their locks means buying entirely new hardware. In reality, rekeying the existing cylinder accomplishes the same security goal in far less time. When a skilled technician rekeys a door knob with lock and key already installed, they disassemble the plug, swap out the driver pins to match a new key cut, and reassemble everything — usually in under 20 minutes per lock. The hardware you paid for stays in place, the finish stays unblemished, and the door operates exactly as it did before, just with a new secret. This matters especially when you have quality Schlage or Kwikset hardware already installed; replacing it wholesale makes no practical sense.
There are situations where full replacement is the right call: a lock that has been physically damaged, a worn-out keyway that cannot accept a clean new cut, or a homeowner upgrading to a double lock door knob configuration or a smart lock door knob with app-based access. Our technicians will assess your existing hardware honestly and tell you which path makes sense — rekey, repin, or replace — before quoting anything. We stock a wide range of replacement cylinders, knob sets, deadbolts, and mortise lock bodies on our service vans so the job rarely requires a second visit.

Door Knob Lock & Deadbolt Rekey: What the Process Actually Looks Like
A professional rekey is a precise mechanical process, not a shortcut. The technician first verifies ownership — we confirm you have legal right to the property before touching any hardware, every time, no exceptions. Then the knob lock cylinder is removed using the correct follower tool for that brand, the pins are extracted in sequence, new driver pins matching your chosen key cut are seated, and the cylinder is tested against the new key several times before reassembly. If you have a deadbolt on the same door, both locks are rekeyed to match so you carry one key for everything — called a keyed-alike setup — or rekeyed independently if you prefer separate access control.
The same workflow applies to mortise lock bodies common on older Cincinnati craftsman homes and commercial storefronts along Montgomery Road. Mortise locks require a slightly different disassembly path because the cylinder sits inside a full-length case recessed into the door edge, but the pin-tumbling principle is identical. Our technicians are trained specifically on mortise lock service, which many general handymen skip because the hardware is more involved. If your building uses a master key system — common in multi-unit properties in Clifton or Northside — we can rekey locks to fit within the existing master hierarchy or establish a new one from scratch.
Our service list covers far more than a standard rekey. Here is a specific look at what we handle on every service call: residential door knob lock rekey, deadbolt rekey, mortise lock rekey, master key system creation, master key system rekeying, keyed-alike setups across multiple doors, high-security cylinder upgrades, Schlage B-series deadbolt installation, Kwikset SmartKey conversion, smart lock door knob installation and programming, keypad lock installation, double lock door knob installation, door knob with lock for bedroom privacy conversions, interior passage knob replacement, exterior knob and deadbolt combo installation, lock cylinder extraction after a broken key, broken key removal, key duplication from an existing key, key origination from a lock with no working key, lock pin repinning, lock lubrication and maintenance service, commercial storefront lock rekey, commercial deadbolt installation, multi-unit building master key programs, emergency lockout entry using non-destructive methods, and post-break-in lock assessment and hardware replacement.

Emergency Locksmith Response and Project Services Across Cincinnati
Whether this is an emergency or a planned project, the process starts the same way: one call to (704) 850-6756 and a live person answers — at noon or at midnight. For emergency situations — locked out, key broken in the cylinder, lock jammed after a break-in attempt — we dispatch the nearest available technician immediately. Cincinnati's layout means traffic patterns on I-71 and 275 vary by time of day, so we will give you a realistic arrival window rather than an optimistic one we cannot keep.
For project work — rekeying an entire rental property before a new tenant moves in, setting up a master key program for a small office on Kenwood Road, or installing fresh mortise lock hardware on a historic home in Columbia-Tusculum — we schedule at your convenience and often complete multi-lock properties in a single visit. We buy our hardware direct from manufacturers and distributors, which removes the retail markup from the equation and means you are not paying inflated shelf prices on the parts going into your doors. The final quote we confirm with you before starting reflects that direct sourcing. No surprise line items, no bait-and-switch pricing — just a clear number you agree to first.

Choosing the Right Lock Hardware: Knob Sets, Deadbolts, and Mortise Locks
Not every door needs the same solution. A door knob with lock on an interior bedroom door typically only needs a privacy function — a simple turn-button on the inside with no keyed cylinder. An exterior front door in a Cincinnati winter needs a heavy-duty deadbolt rated for serious forced-entry resistance, ideally a Grade 1 ANSI-rated unit paired with a reinforced strike plate. A vintage foursquare in Westwood with a full-mortise lock case in the door edge needs a technician who understands that hardware specifically, not someone who treats every lock like a standard cylindrical knob set.
When a client asks about a smart lock door knob or a keypad deadbolt, we walk through the practical tradeoffs: battery life in Ohio's cold winters, Wi-Fi versus Z-Wave connectivity, whether the door prep matches the new hardware footprint, and how to handle a lockout if the battery dies mid-winter. We install, program, and test smart locks the same day. For properties where conventional keyed hardware is preferred, we are equally comfortable specifying a high-security Schlage or Kwikset cylinder with restricted keyways that prevent unauthorized key copying — a meaningful upgrade over the standard hardware that comes in most big-box knob sets. Whatever direction makes sense for your door, your budget, and your security goals, our technicians will give you an honest recommendation before any work is authorized.

Frequently asked questions
Is there a mobile locksmith in Cincinnati?
Yes — Top Cincinnati Locksmith operates as a fully mobile service across the greater Cincinnati area, including neighborhoods like Hyde Park, Oakley, Clifton, Blue Ash, Mount Lookout, Westwood, and beyond. We do not have a storefront you visit; instead, our insured technicians come to your location in a fully equipped service van. Whether you need a door knob lock rekeyed after moving into a new home or a full mortise lock replacement on a commercial property, we come to you — 24 hours a day, 7 days a week. Call (704) 850-6756 and we dispatch the nearest available technician right away.
Do locksmiths charge a call-out fee?
Many mobile locksmith services do include a service call or dispatch component in their pricing, and the total cost of a job is typically shaped by several factors: the type of lock involved (a standard knob lock versus a mortise lock or a high-security deadbolt), the time of day (overnight and weekend calls involve different logistics than a weekday afternoon), your location relative to our nearest technician, and what parts — if any — the job requires. At Top Cincinnati Locksmith, we confirm an exact up-front price with you before any work begins, so there are no surprises when the job is done. Call (704) 850-6756 to describe your situation and get a clear quote.
What should I do if I can't afford a locksmith right now?
First, check whether you have a spare key with a trusted neighbor, family member, or property manager — that is always the fastest and least costly option for a lockout. For rental properties, your landlord is legally obligated to provide access. If you own the home, check every entry point: a garage side door, a back door, or a window that may be unlocked. If none of those options work and you need professional help, be upfront with us when you call — we will explain every cost factor clearly before starting so you know exactly what you are committing to. We never begin work without your explicit agreement on the price. Our goal is to resolve your situation fairly, and we can walk you through what the job involves so you can make an informed decision.
Can a locksmith make a new key from a lock?
Yes. This is called key origination, and it is a core skill for any experienced locksmith. If you have moved into a home and received no working keys at all, or if every copy has been lost, a trained technician can decode the existing lock cylinder — by disassembly or by using a code-cutting process — and cut a new working key from scratch. This works for standard door knob locks, deadbolts, and mortise lock cylinders alike. The process is more involved than a simple key duplication, so the time and cost reflect that additional labor. At Top Cincinnati Locksmith, we carry the equipment to perform key origination on-site during the same visit.
How much will an emergency locksmith cost?
There is no single flat rate for emergency locksmith work because several variables affect the final price: the type of lock (a basic knob lock rekey differs from a mortise lock extraction or a high-security deadbolt replacement), the time of the call (an overnight dispatch involves different logistics than a mid-morning appointment), travel distance to your location within the Cincinnati area, and whether replacement parts are needed. What we can promise is this — before one tool touches your door, we confirm the exact price with you and you decide whether to proceed. There are no hidden fees added after the work is complete. Call (704) 850-6756 any time to describe your situation and get a straight answer.
Where can I find an emergency locksmith in Cincinnati, Ohio?
Top Cincinnati Locksmith is available 24 hours a day, 7 days a week throughout Cincinnati and the surrounding area — from downtown and Over-the-Rhine to the eastern suburbs like Anderson Township and the northern communities along I-71. When you call (704) 850-6756, you reach a live person who gathers your location and the details of your situation, confirms a price, and dispatches an insured, experienced technician to you. We handle everything from emergency lockouts and broken key extractions to full door knob lock and deadbolt rekeying on the same call. You do not need to search further — one call connects you to a local team that knows Cincinnati streets and gets to you fast.
How do I know if my door knob lock needs to be rekeyed or fully replaced?
Rekeying is the right choice when the lock cylinder is mechanically sound — the key turns smoothly, the bolt or latch operates cleanly, and the hardware has no visible damage. It is the standard recommendation after a move, after a key goes missing, or after a relationship change in a household or rental unit. Replacement makes more sense when the lock has been physically forced or tampered with, when it is so worn that pins do not seat reliably, when you want to upgrade to a double lock door knob, a smart lock door knob, or a higher-security grade cylinder, or when the existing hardware simply no longer fits your door properly. Our technicians will assess your specific lock on-site and tell you honestly which path is warranted before any work begins.
Locked out or need a lock fixed? We are on the way.
Open 24 hours, 7 days a week · Insured, background-checked technicians · Up-front pricing
(704) 850-6756