Rekey & Lock Change
When you move into a new home on Upper Mountain Avenue, end a relationship, or simply misplace a key, one thing is certain: whoever had access to your property before you still has it — unless you act. A rekey or lock change closes that gap immediately, restoring full control over who can walk through your door. Montclair Locksmith Corp operates 24/7 across Montclair and the surrounding area, sending trained, insured technicians directly to your address so you never have to remove a single hinge yourself.
Open 24 hours, 7 days a week · Licensed, bonded & insured
“This page covers everything you need to know about rekeying versus replacing locks, when each option makes sense, what goes into the final price of a lock change service, and why the type of hardware on your door — especially a mortise lock — matters more than most people realize. Whether you are securing a Victorian home near Watchung Plaza, a condo off Bloomfield Avenue, or a commercial storefront downtown, we confirm an exact up-front price before any work begins, so there are no surprises when the job is done.
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 Montclair, we reach the Montclair 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.
Rekey or Lock Change — Understanding Which Service You Actually Need
Rekeying means a technician disassembles your existing lock cylinder and replaces the internal pins so that only a brand-new key operates it. The hardware itself stays in place. This works well when your locks are in solid mechanical condition and the goal is simply to cancel access for an old key — the classic scenario after a move, a tenant changeover, or a lost key situation. Because no new hardware is purchased, the turnaround time is typically faster. Our mobile unit carries a full range of key blanks and pinning kits, so we can rekey locks on-site for most residential and commercial cylinders without a second visit.
A lock change, by contrast, means removing the existing hardware entirely and installing a new lock set — cylinder, body, and all. This is the right call when your current lock is worn, damaged, or simply not up to the security standard the situation demands. It is also the appropriate step when you are upgrading from a basic door knob lock to a higher-security deadbolt, or when you are swapping out a failing mortise lock on an older Montclair property. Many of the pre-war and early mid-century homes throughout the Montclair Heights and Upper Montclair neighborhoods were built with full mortise lock systems — deep-pocket hardware set directly into the door edge. Servicing a mortise lock requires hands-on experience with the specific geometry of each manufacturer's body, something our technicians work with regularly.
Mortise Lock, Door Knob Lock, and Deadbolt Rekey & Lock Change Services We Cover
Not every lock behaves the same way on the workbench, and that distinction has real consequences for your security and your door. A mortise lock is a two-piece system: the lock body sits inside a carved-out pocket in the door edge, and a separate cylinder plugs into the face. When a mortise lock cylinder needs to be rekeyed or the body needs replacement, the job is more involved than swapping a simple cylindrical deadbolt — and choosing a technician who is not familiar with the hardware can result in misaligned strike plates, cracked door edges, or a lock that binds in cold weather. Our team works on mortise locks from Schlage, Kwikset, and a range of legacy manufacturers found throughout Montclair's older housing stock. We also handle standard door knob locks, single and double-cylinder deadbolts, rim locks, keypad entry units including Honeywell door lock code changes, smart lock installations, padlocks including master lock combination resets where mechanically feasible, commercial-grade lever hardware, and Defiant lock code and cylinder services. If you are unsure what type of lock you have, just call 973-352-0591 — we can often identify the hardware from a photo or a description before we arrive.
On the commercial side, a commercial lock change is a different undertaking than a residential swap. Office suites, retail spaces, and multi-tenant buildings along Claremont Avenue or the Valley Road corridor often use interchangeable-core systems, access-controlled cylinders, or exit devices with integrated deadlatches. A commercial locksmith who understands keying hierarchies — master keys, sub-master keys, restricted keyways — can set up or modify a system so that a building manager holds a master while individual tenants hold keys that open only their own suite. We carry the tooling and hardware inventory to handle these jobs on a single visit, whether it is a single office door or a full building rekey after staff turnover.
What Determines the Cost of a Lock Change or Rekey in NJ
A question we hear constantly is some version of 'How much does a locksmith cost in NJ?' or 'How much should an emergency locksmith cost?' The honest answer is that no legitimate locksmith can give you a meaningful number without knowing several key variables — and anyone who quotes you a flat rate over the phone before knowing your situation is guessing. The factors that shape the final price of any rekey or lock change service include the type and brand of lock (a mortise lock body costs more in parts and labor than a basic knob), the number of doors being serviced, whether new hardware needs to be sourced, the time of day the call comes in, and the travel distance to your location. A call at 2 a.m. on a weekend involves different logistics than a scheduled afternoon appointment, and that is reflected in the quote. What we commit to without exception is this: before a single screw is turned, our technician gives you an exact price and waits for your go-ahead. There is no obligation to proceed, and no bill that looks different from what was agreed. That transparency is how we have built a reputation in Montclair — not through bargain pitches, but through honest, up-front communication.
For those wondering 'How much is the cheapest locksmith?' or 'How much does an emergency locksmith cost near me?' — we understand cost is a real concern, especially in an urgent situation. What we can tell you is that our pricing reflects genuine factors: skilled labor, insured technicians, a fully stocked mobile unit that avoids second trips, and parts that are sourced to last. A lock installed correctly the first time is far less expensive over time than one that fails or requires a repeat service call. If you want to understand the quote before committing, our technicians are trained to walk you through exactly what you are paying for and why.
24/7 Emergency Locksmith Response and the Value of Mobile Service in Montclair
Montclair is a walkable, densely built community where the distance between a problem and a solution should not be measured in hours. Whether you have just discovered that a former partner still has a key to your apartment near the Lackawanna Plaza area, or you are a property manager dealing with a lock change on a commercial unit at 10 p.m. on a Tuesday, our emergency locksmith dispatch is live around the clock — 365 days a year, including holidays. We do not forward calls to an answering service overnight. A real dispatcher picks up, takes your address, and routes the nearest available technician to you. For those searching 'rekey locks near me' at an inconvenient hour, that responsiveness is what makes the difference between a stressful night and a solved problem. Call 973-352-0591 any time — we answer 24/7.
The mobile model means our van arrives stocked with the hardware, pinning kits, key blanks, and tools needed to handle most rekey and lock change jobs on the spot — including mortise lock cylinder work, smart lock programming, and commercial cylinder replacement. You do not drop off a lock and come back later. We come to your door, do the work at your door, and hand you working keys before we leave. For residents of Montclair's historic districts where door hardware is part of the home's character, our technicians are trained to work carefully and preserve finish and trim wherever the job allows, keeping the process damage-free where possible. Is Montclair NJ upper class? Parts of it certainly carry that designation — and we treat the homes and businesses we work in accordingly, with the care and attention that reflects the community we serve.
25 Specific Rekey and Lock Change Services We Provide
Our mobile team handles the full range of residential and commercial lock work — not just the most common calls. Here is a specific look at what we cover: residential mortise lock cylinder rekey, full mortise lock body replacement, single-cylinder deadbolt rekey, double-cylinder deadbolt rekey, door knob lock rekey, door knob lock replacement, Schlage deadbolt rekey and replacement, Kwikset deadbolt rekey and replacement, Defiant lock cylinder service and code reprogramming, Honeywell door lock code change and reset, master lock combination reset (padlock), smart lock installation and programming, keypad deadbolt setup and code change, rim lock rekey, chain lock replacement, sliding door lock replacement, patio door pin lock installation, commercial mortise lock replacement, commercial cylindrical lever rekey, interchangeable-core cylinder replacement, master key system setup, sub-master key hierarchy programming, high-security restricted keyway installation, exit device (crash bar) lock cylinder replacement, and multi-point lock system rekey for European-style doors. If your specific hardware is not on this list, call us — our technicians encounter uncommon lock types regularly and are trained to assess and advise on the spot.
Frequently asked questions
What is the difference between rekeying and a full lock change, and which one do I need after moving?
Rekeying changes the internal pins of your existing cylinder so old keys no longer work — the hardware stays in place. A lock change replaces the entire lock set. After a move, rekeying is usually sufficient if the locks are in good condition; a full lock change makes more sense if the hardware is worn, outdated, or you want to upgrade security at the same time. Our technician will assess your locks when we arrive and give you an honest recommendation before quoting anything.
How much does a locksmith cost in NJ for a rekey or lock change?
The final cost depends on several factors: the type of lock (a mortise lock involves more labor and parts than a standard deadbolt), the number of doors, whether new hardware is needed, the time of day, and your location relative to our dispatch point. We never quote a firm number without knowing these details — but we always confirm an exact price with you before any work begins. You are never committed until you approve the quote.
Can you rekey a mortise lock, or does it always have to be fully replaced?
In most cases, yes — a mortise lock cylinder can be rekeyed without replacing the entire body, as long as the internal mechanism is in sound working order. Our technicians are experienced with the mortise lock systems common throughout Montclair's older homes and commercial properties. If the body itself is worn or damaged, we will tell you and explain the replacement options, but we will never push unnecessary hardware if a rekey will solve the problem.
Do you change Honeywell door lock codes and Defiant lock cylinders?
Yes. For Honeywell electronic door locks, we can reset and reprogram access codes on-site. For Defiant lock hardware, we handle both code changes on keypad models and cylinder rekeying or replacement on keyed versions. If you have lost your programming instructions or access credentials, our technicians are trained to work through the manufacturer's reset procedures without damaging the unit.
Is Montclair NJ served 24/7, including overnight and weekend emergency calls?
Absolutely. Montclair Locksmith Corp operates around the clock — evenings, weekends, and holidays included. We dispatch trained, insured technicians directly to your address across Montclair and the surrounding area. If you are dealing with a security concern right now, call 973-352-0591 and a live dispatcher will route a technician to you immediately. There is no after-hours answering service — a real person picks up every call.
What should a commercial property owner know before scheduling a commercial lock change?
Commercial lock change jobs are more involved than residential ones because they often include keying hierarchies, restricted keyways, access-controlled cylinders, or exit device hardware. Before we arrive, it helps to know how many doors are involved, whether a master key system is in place, and whether any cylinders are interchangeable-core. Our commercial locksmith technicians will assess the full scope on-site and provide an up-front quote that accounts for parts, labor, and any keying structure you need — with no obligation until you approve it.