Home Rekeying

Inside every pin-tumbler lock — the mechanism behind most residential deadbolts, door knob locks, and mortise lock cylinders — sits a series of spring-loaded driver pins and key pins. The factory cuts those pins to match one specific key bitting. When our technician rekeys a lock, they disassemble the cylinder, swap out the existing key pins for a new set matched to a freshly cut key, and reassemble everything. The result: your original lock hardware stays in place, your door frame and strike plate go untouched, and every old key becomes a useless piece of metal. The process is precise, damage-free, and typically far quicker than a full lock replacement.

This matters enormously in practice. A mortise lock, for example, is a heavier, more complex cartridge set into a pocket machined into the door edge — common in older Chicago-area bungalows and mid-century Rosemont properties. Pulling and replacing a mortise lock body is a significant job that disturbs the door's structural integrity if done carelessly. Rekeying the mortise lock cylinder leaves the body, the trim, and the finish completely intact, which is why our experienced technicians always evaluate whether rekeying is the smarter solution before recommending a full replacement.

The three moments that most urgently call for rekeying are a property purchase, the end of a tenancy, and the aftermath of a break-in where no locks were actually forced. In each case, the physical lock may be in perfect working order — the security gap is entirely about key control. Landlords managing units along River Road or near the Rosemont Convention Center routinely schedule rekeying between every tenancy as a non-negotiable step in their turnover checklist. The same applies to homeowners who handed spare keys to house-sitters, pet sitters, or short-term guests. Once that arrangement ends, those keys represent an open invitation unless the cylinders are changed.

Our mobile technicians carry a full inventory of replacement pin kits and key blanks for the most common residential brands — Schlage, Kwikset, and similar — so the job is completed in a single visit. If you have multiple entry points, we can rekey all cylinders to a single master key or to individual keys per door, depending on your access-control preference. We confirm the exact scope and the final up-front price before any work begins, so there are no surprises on the invoice. Factors that shape the final quote include the number of locks, the lock type (a standard door knob lock differs in labor from a mortise lock), the time of the service call, and any parts needed beyond the standard pin rekey.

Pro Des Plaines Locksmiths handles a wide range of residential hardware, and we want to be specific about what that means in practice. Our technicians are experienced with: mortise lock cylinder rekeying, mortise lock full cartridge replacement, Schlage deadbolt rekeying, Kwikset deadbolt rekeying, door knob lock rekeying, door knob lock replacement, single-cylinder deadbolt installation, double-cylinder deadbolt installation, high-security cylinder upgrades, master key system setup for residential properties, smart lock conversion and installation, keypad deadbolt programming, sliding glass door lock rekeying, patio door pin-tumbler cylinder service, chain guard and door chain installation, door reinforcement strike plate upgrade, door viewer (peephole) installation, garage side-door lock rekeying, padlock rekeying for outbuildings or gates, lock-out service with ownership verification, broken key extraction from cylinders, damaged lock cylinder repair, lock lubrication and preventive maintenance, key duplication for rekeyed cylinders, emergency lock change after a break-in attempt, mailbox lock rekeying, storage room deadbolt installation, window sash lock inspection and replacement, and access control consultation for multi-unit residential buildings. If you do not see a specific service listed here, call (847) 907-6157 — our team answers around the clock and can tell you immediately whether the job falls within our mobile capabilities.

Security concerns rarely wait for business hours. A lease ending at midnight, a discovered key missing after a holiday party, or a landlord who needs a unit secured before the next morning — these are exactly the situations our emergency locksmith service exists to handle. Rosemont sits at the intersection of some of the most heavily trafficked corridors in the northwest suburbs: I-90, I-294, and the O'Hare airport access roads all converge here, which means our mobile technicians can reach most Rosemont addresses quickly regardless of the hour. We are dispatched from the Des Plaines area and maintain 24/7 availability every day of the year, including holidays.

When you call, a live team member picks up — not a voicemail, not an answering service that queues your request until morning. We gather your address, verify the nature of the request, and dispatch a trained, insured technician with the right tools for your lock type. For lock-out situations specifically, our process always begins with ownership verification before any work proceeds, keeping the service both legitimate and safe. Whether you need a routine rekey scheduled for tomorrow afternoon or an emergency lock change tonight, the number is the same: (847) 907-6157.

We understand that cost transparency matters, which is why we never begin work until you have agreed to an exact, confirmed price. Several variables influence what a rekeying visit will cost: the number of locks being serviced, the type of hardware involved (a basic door knob lock rekeys differently than a multi-point mortise lock), the time of day (late-night emergency calls involve different logistics than a daytime appointment), travel distance to your specific Rosemont address, and whether any replacement parts — new pins, a worn cylinder, a damaged cam — are needed beyond the labor. There are no hidden fees added after the fact. The price you confirm before work begins is the price on your invoice.

Once our technician arrives, the process is straightforward: they inspect each lock, discuss the rekeying or replacement approach with you, confirm the final quote, complete the work — typically damage-free — cut new keys on-site, and test every cylinder and key combination before packing up. You walk away with working keys, a written record of what was serviced, and the confidence that every previously existing key is now permanently inoperable.