Commercial Lock Rekey Service
When an employee leaves on bad terms, a master key goes missing, or a Long Hill business simply changes hands, the fastest and most cost-effective way to restore full access control is a professional lock rekey — not a full commercial lock change. Long Hill Locksmith provides on-site commercial lock rekey service throughout Long Hill, NJ, dispatching trained and insured technicians directly to your office, retail storefront, warehouse, or multi-unit property — no appointment window required, no shop visit needed. We come to you, rekeying your existing hardware so that all previous keys become permanently useless and only your new keys work.
Open 24 hours, 7 days a week · Licensed, bonded & insured
From the office corridors along Valley Road to the industrial properties near the Murray Hill section, Long Hill businesses trust us to handle rekeying quickly and correctly the first time. Whether you manage a single door or a complex with dozens of mortise locks, cylindrical knob sets, and deadbolts on a master-key system, our team has the tools and hands-on experience to complete the job with minimal disruption to your workday. And because we operate 24/7, an after-hours call is handled with the same professionalism as a scheduled midday appointment.
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 Long Hill, we reach the Long Hill 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.
More about our work
Everything you need to know about how we help — at a glance.
What Our Commercial Lock Rekey Service Actually Involves
Rekeying is a precise mechanical process: a trained technician disassembles the lock cylinder, replaces the internal pin tumblers with a new configuration, and reassembles the hardware — all without replacing the lock body itself. The result is a cylinder that responds only to the newly cut keys. For most commercial applications, this is the smartest move after a personnel change, a lost master key, or the acquisition of a previously occupied space. It preserves your existing, often high-quality hardware — including heavy-duty mortise locks, which are standard in commercial doors throughout New Jersey — while completely invalidating any outstanding keys. Our technicians work damage-free wherever possible, protecting your door frames and finish hardware during every service call.
Our commercial lock rekey service covers a wide range of hardware and scenarios, including: mortise lock cylinder rekeying, cylindrical and tubular door knob lock rekeying, deadbolt rekeying, padlock rekeying, master key system rekeying and expansion, keyway changes, re-pinning to a new master key hierarchy, rekeying after break-in or attempted forced entry, rekeying following a change of tenancy, emergency rekey after key theft, rekeying to match a single key (keyed-alike service), rekeying high-security cylinders (Medeco, Mul-T-Lock, ASSA, and others), rekeying push-bar and exit-device trim cylinders, rekeying storefront door cylinders, rekeying cabinet and filing-cabinet locks, rekeying interior office suite locks, rekeying server-room and restricted-access doors, rekeying loading-dock and warehouse entry doors, building-wide master key audits and re-keying schedules, key-control consultation after a security incident, same-day rekeying for newly purchased commercial properties, after-hours emergency rekey for businesses discovering a security breach, multi-cylinder coordination so one key opens authorized doors across your facility, rekeying in preparation for commercial lock installation of additional hardware, rekeying to accommodate new staff hierarchies, and documentation of the new key system for your records.
Mortise Locks, Door Knob Locks, and the Hardware We Work With
Commercial doors in Long Hill — whether in an office suite, a mixed-use building, or a light-industrial facility — most commonly feature mortise locks, which are recessed into the door edge and offer significantly more strength and functionality than a standard cylindrical lock. A mortise lock cylinder is a distinct removable component, which means rekeying it requires specialized tools and knowledge of the particular keyway and pin configuration the manufacturer used. Our technicians work with mortise lock hardware from a broad range of manufacturers daily, including Schlage, Sargent, Corbin Russwin, Yale, and others, so we can rekey without swapping out the entire lock body unless the hardware itself is damaged or worn beyond service.
We also handle the full spectrum of door knob lock sets, lever-handle locks, rim cylinders, and surface-mounted deadbolts common in smaller commercial and mixed-use properties across Long Hill Township. If your building uses a master key system — where a building manager key opens every suite while each tenant holds a key to only their own space — we can rekey within that hierarchy or redesign the system entirely when the current configuration has been compromised. Getting the pin-stack math right on a master key system is where experience matters most, and it is exactly the kind of detail our team is trained to handle precisely.
When to Call an Emergency Commercial Locksmith — Not Just a Scheduled Rekey
Some situations cannot wait until morning. A discovered break-in attempt, a terminated employee who refuses to return keys, a lost key ring found on a public street — these are scenarios where waiting even a few hours creates real liability. As a 24/7 emergency locksmith serving Long Hill and the surrounding Morris County area, we treat urgent commercial calls with the same methodical approach as daytime work: ownership or management verification first, then a thorough assessment of which cylinders need attention, followed by the rekey or, if hardware is damaged, a commercial lock installation to restore a secure entry point. Call us at (908) 317-3816 any time — our dispatch team answers around the clock.
It is worth noting that not every late-night call requires full lock replacement. In many cases, an emergency rekey of the affected cylinders — particularly the mortise lock on a main entry — is completed in under an hour per door, restoring security faster and at a simpler scope than a full hardware swap. We will assess the situation honestly and recommend only what the security condition actually requires, confirming an exact up-front price before any work begins so there are no surprises on your invoice.
Pricing Factors and What to Expect From a Long Hill Locksmith Visit
We are frequently asked how much a commercial rekey costs, and the honest answer is: it depends on several specific variables. The number and type of cylinders involved is the biggest factor — rekeying a single door knob lock is a different scope than rekeying a twenty-door facility with a mortise lock on every entry. The complexity of your existing or desired master key system, whether new keys need to be cut and how many copies are required, the time of day (after-hours and weekend calls involve different logistics), and travel distance to your Long Hill location all factor into the final figure. We never quote a vague estimate and then adjust it at the door — our technician confirms an exact price after the on-site assessment and before touching a single cylinder. You approve the scope, then we work.
When evaluating any commercial locksmith service, there are smart questions to ask before the work begins: Are your technicians trained and insured? Do you provide a written or verbal up-front price confirmation? Can you handle the specific hardware on my doors, including high-security or mortise lock cylinders? Will you provide new keys on-site? What happens if additional cylinders need attention once the job is underway? At Long Hill Locksmith, we welcome every one of those questions. Our technicians arrive in marked vehicles, carry proper identification, and will walk you through the entire scope before lifting a tool. If your situation calls for anything beyond rekeying — such as a full commercial lock installation, an upgraded access control recommendation, or additional keys cut to a restricted keyway — we will tell you clearly and let you decide. Ready to secure your business? Call (908) 317-3816 — we answer 24/7.
Frequently asked questions
Answers to what our customers ask most. Still unsure? Just call.
How much does a local locksmith charge for a commercial rekey in Long Hill, NJ?+
The cost of a commercial lock rekey depends on several factors: the number of cylinders being rekeyed, the type of hardware involved (a mortise lock cylinder, for example, involves more labor than a standard knob set), whether a master key system is being rekeyed or redesigned, how many new keys need to be cut, the time of day, and travel distance to your Long Hill location. We do not publish flat rates because quoting without seeing the hardware would be misleading. What we do guarantee is a clear, exact price confirmed before any work begins — no mid-job surprises.
How much does an emergency locksmith cost compared to a regular scheduled visit?+
After-hours, overnight, and weekend commercial calls typically involve different logistics — our technicians are dispatched outside normal operating hours, which is reflected in the quote. However, the same up-front pricing commitment applies: we confirm the exact cost before starting, regardless of when you call. For businesses facing a genuine security emergency — a break-in attempt, a missing key, or a terminated employee situation — the cost of an immediate rekey is almost always far less than the liability of leaving a compromised lock in place overnight. Call (908) 317-3816 any time; we answer 24/7.
What locks can locksmiths not open or rekey?+
A skilled commercial locksmith can rekey the vast majority of lock cylinders in common use, including standard pin-tumbler cylinders, mortise lock cylinders, high-security cylinders with sidebars or secondary locking elements, and most restricted-keyway cylinders. Rekeying is not possible on certain disc-detainer or wafer-style locks that are not designed to be serviced, and some electronic smart locks have non-rekeying cylinders that require full replacement of the core. Severely damaged or corroded cylinders may also need to be replaced rather than rekeyed. During our on-site assessment, we will tell you exactly what is serviceable and what, if anything, requires a commercial lock installation instead.
What should I ask a locksmith before hiring them for commercial work?+
Smart questions to ask include: Are your technicians trained and insured? Do you confirm an exact price before starting work? Can you handle my specific hardware — particularly mortise lock cylinders or high-security keyways? Will you rekey on-site and cut new keys the same visit? How do you verify that I am authorized to request changes to this property? At Long Hill Locksmith, we encourage every one of these questions. Our technicians carry identification, arrive in marked vehicles, verify authorization before any work, and confirm pricing up front. We have hands-on experience with the full range of commercial hardware found in Long Hill and throughout Morris County.
Is rekeying better than a full commercial lock change for my business?+
In most cases, yes — if your existing hardware is in good mechanical condition. Rekeying a mortise lock or cylindrical lock set costs less and is completed faster than replacing the entire lock, and it achieves the same security outcome: every previously issued key stops working. A full commercial lock installation makes more sense when the existing hardware is damaged, outdated, offers inadequate security for your risk level, or when you want to upgrade to a restricted keyway or high-security cylinder at the same time. We will assess your hardware honestly and recommend the most practical path — not the most expensive one.
Can Long Hill Locksmith rekey an entire building on a master key system in one visit?+
Yes, for most commercial properties. Our technicians carry a full inventory of pin-tumbler components, key blanks, and key-cutting equipment in mobile service vehicles, so a building-wide rekey — including restructuring or expanding a master key hierarchy — can typically be completed in a single visit. The scope and time required depend on the number of cylinders, the complexity of the key system, and the hardware types involved (a building with mortise lock cylinders on every entry takes longer than one with standard knob sets). We schedule accordingly and keep you informed throughout the process so your business operations are disrupted as little as possible.
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
(908) 317-3816