Door Knob & Deadbolt Installation
East Brunswick keeps busy — commuters heading up Route 18, families settled into the Dunhams Corner and Fords Road corridors, and a steady mix of single-family homes, townhouses, and garden-style condos that each present their own entry-door hardware challenges. When the deadbolt on your front door starts sticking, a knob cylinder fails mid-week, or you simply want to upgrade to something more secure before winter, East Brunswick Locksmith sends a trained, insured technician directly to your address — no shop visit required.
Open 24 hours, 7 days a week · Licensed, bonded & insured
“Our mobile door knob and deadbolt installation service covers everything from a basic keyed-entry door knob lock swap to a full mortise lock conversion on a heavy wood or fiberglass entry door. Whether you are dealing with a worn-out passage set, a builder-grade knob that was never truly secure, or an aging single-cylinder deadbolt you have outgrown, we arrive equipped with professional-grade tools and a broad inventory of hardware so most jobs are completed in a single visit. Call us any time at (732) 327-3683 — our team answers 24/7.
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 East Brunswick, we reach the East Brunswick 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.
Door Knob & Deadbolt Installation: What the Job Actually Involves
Replacing a door knob with lock and key sounds simple until you pull the old hardware and discover the door prep does not match modern bore dimensions, the strike plate pocket is undersized, or the door thickness sits outside the standard range. Our technicians measure before they cut. On a typical entry door installation, we remove the existing knob or lever set, inspect the latch bore and cross bore for damage or wear, install the new lock body with the correct backset — usually 2-3/8 or 2-3/4 inches depending on your door — seat the strike plate deep enough to actually resist kick-in force, and verify smooth operation before packing up. Every step is done with hand tools and careful technique; our goal is a damage-free installation that does not mar your door finish or frame.
Deadbolt installation follows the same discipline. A single-cylinder deadbolt paired with a quality door knob lock creates the layered entry security that most home-security professionals recommend as a baseline. For clients who want a stronger upgrade, we also install double lock door knob and deadbolt combinations — particularly useful on doors with sidelights or large glass panels where a standard single-cylinder bolt could be reached through broken glass. We walk you through the options, explain the real-world trade-offs, and let you decide what fits your home and your routine.
Mortise Lock Installation and Commercial Locksmith Work in East Brunswick
Mortise locks represent the gold standard for entry door security, and they require a different level of skill to install correctly. Unlike cylindrical locks that drop into two drilled bores, a mortise lock body sits inside a deep rectangular pocket cut into the door edge. Cutting that mortise cleanly — getting the depth, width, and length right without splitting the stile — demands experience and the right chiseling equipment. Our technicians perform mortise lock installation on residential entry doors, commercial storefronts along Route 1, office suites, and multi-tenant buildings throughout the East Brunswick area. If you operate a retail space, medical office, or light-industrial facility and want hardware that can handle hundreds of daily cycles without failure, a quality mortise lock set is worth the conversation.
As a commercial locksmith serving East Brunswick businesses, we also handle lever-handle trim replacement on ADA-compliant doors, master-key system integration so a single key operates multiple suites, and high-security cylinder upgrades that resist picking and drilling. Commercial door knob lock and lever sets take a beating; we stock professional-grade replacements and can typically source special-order hardware within a day or two when a particular finish or function is required. Call (732) 327-3683 to talk through your commercial hardware needs with a technician who can give you a straight answer.
Smart Lock, Keypad, and Modern Upgrade Options for Your Entry Door
The market for smart lock door knob and deadbolt systems has matured considerably, and East Brunswick homeowners are asking about them more than ever. A keypad lock door knob eliminates the risk of a lost or copied key and lets you grant temporary access codes to dog walkers, contractors, or family members without duplicating a physical key. Smart deadbolts with Wi-Fi or Z-Wave connectivity take that a step further — you can check lock status, receive entry alerts, and lock or unlock remotely from your phone. Our team installs and configures these systems, programs the initial user codes, and tests connectivity before we leave so you are not troubleshooting on your own later.
Not every door is ready for a smart upgrade out of the box. Older doors may need a reinforced strike plate or door-edge reinforcement kit before a smart lock makes sense from a security standpoint, because a high-tech deadbolt on a flimsy frame is still a flimsy frame. We assess the full door assembly — hinges, frame, strike pocket depth — and recommend any prep work needed so the finished installation is as strong as it looks. If you prefer to keep things simple with a traditional door knob with lock, we respect that too; our job is to give you accurate information, not upsell hardware you do not need.
Pricing Factors, Emergency Locksmith Response, and What to Expect
We are asked constantly: how much does a locksmith cost in NJ, and what does the average locksmith charge per hour? The honest answer is that no responsible locksmith quotes a flat number without knowing the specifics of the job. The factors that shape your final price include the type and brand of hardware being installed (a Schlage B-series deadbolt versus a Kwikset SmartKey versus a full mortise lock body carry very different part costs), whether door prep work is needed, the time of day the call comes in, and travel distance from our current position to your East Brunswick address. We confirm an exact up-front price before any work begins — there are no surprise line items added after the fact.
If your door knob lock fails in the middle of the night or a deadbolt cylinder seizes after a break-in attempt, our emergency locksmith response is available around the clock. East Brunswick sits in Middlesex County and our mobile units cover the township continuously, from the quiet cul-de-sacs near Heavenly Brook to the busier stretches near the Woodbridge border. Being 24/7 means we pick up when you call at 2 a.m., dispatch a technician, and arrive with the tools and hardware to handle the job — not a promise to schedule you for the next business day. For non-emergency installations, we are equally available and can work around your schedule. Reach us any time at (732) 327-3683.
Frequently asked questions
How much will a locksmith charge to change a lock in East Brunswick, NJ?
The final cost depends on several variables: the type of lock being installed (cylindrical deadbolt, mortise lock, smart deadbolt, or a full door knob and deadbolt set), whether the existing door prep needs modification, the hardware brand and finish you choose, and whether the call is during standard hours or overnight. We do not post flat rates because quoting a number without seeing the door would not be honest. What we do commit to is confirming an exact price before any work starts, so you know the full amount before you approve anything. Call (732) 327-3683 and describe your situation — we can usually give a solid ballpark on the phone.
Can a locksmith make a key from a lock if I have lost all my copies?
Yes. This process is called impressioning or key origination, and a skilled technician can decode a lock cylinder and cut a working key directly from the lock without needing any existing key as a template. On pin-tumbler cylindrical locks — the type found in most residential door knob lock and deadbolt sets — our technicians can read the existing cylinder and produce a new key on our mobile key-cutting equipment. For high-security or patented keyways, we may need to order a specific key blank, but most standard residential locks are handled on-site. If the lock cylinder itself is damaged or worn, we will let you know whether rekeying or full replacement makes more sense.
I searched for how to pick a door knob lock — should I try it myself during a lockout?
We understand the impulse when you are locked out, but attempting to pick or force a lock without training almost always causes damage to the cylinder pins, the cam, or the door itself — damage that turns a simple lockout into a full replacement job. More importantly, it rarely works without specialized tools and hands-on experience. The smarter first steps are checking for a spare key with a neighbor or family member, trying other entry points you have access to (garage, back door), or calling us. We are available 24/7, we carry the right tools, and a professional opening is almost always faster and damage-free compared to a DIY attempt. If you are locked out right now, call (732) 327-3683.
What is the difference between a mortise lock and a standard cylindrical deadbolt?
A cylindrical deadbolt drops into two round bores drilled through the door face and edge — it is the most common residential lock type and straightforward to install or replace. A mortise lock body fits into a large rectangular pocket routed into the door's edge stile, giving it a much larger footprint, more internal components, and significantly greater resistance to forced entry and prolonged wear. Mortise locks are standard on commercial doors and high-end residential entry doors, and they can integrate latch, deadbolt, and sometimes an auxiliary bolt in a single unit. The installation is more involved and requires precise mortise cutting, but the result is a door that functions and holds up at a different level. Our team handles both types across East Brunswick and the surrounding Middlesex County area.
Is a double lock door knob setup safe for a bedroom or interior door?
A door knob with lock for a bedroom typically uses a privacy function — a push-button or twist lock on the interior that can be opened from outside with a small emergency release tool in case someone is trapped. True keyed locks on bedroom doors are less common in residential settings and can create safety hazards during an emergency. If you are asking about a double lock door knob setup for an interior door because of a specific security concern — a home office with sensitive files, for example — we can talk through the right hardware choice. For entry doors, a keyed knob paired with a deadbolt is the standard layered approach we recommend and install every day.
Do I need to replace the whole lock or just rekey it when I move into a new home in East Brunswick?
Rekeying is usually sufficient when the hardware itself is in good condition and you simply want to make old keys inoperable. A technician removes the cylinder, replaces the pin stacks to match a new key, and reassembles everything — it is faster and less expensive than full replacement and leaves you with fresh key control from day one. Replacement makes more sense when the lock is worn, damaged, an outdated model with poor security ratings, or when you want to upgrade to a smart lock or mortise lock system. Many new homeowners in East Brunswick opt for rekeying the knobs and deadbolts on all exterior doors in a single visit so everything operates on one key. We can assess your existing hardware and give you an honest recommendation either way.