Deadbolt Installation
If your exterior door in Inwood still relies on a basic spring latch or a decades-old lock cylinder, your home's first line of defense is overdue for an upgrade. A properly installed deadbolt is one of the single most effective physical security measures you can add to any door — but the lock itself is only as strong as the installation behind it. At Inwood Locksmith, our trained, insured technicians come directly to your home or property anywhere in the Inwood, NY 11096 area, assess your door and frame, and complete the work cleanly and correctly the first time.
Open 24 hours, 7 days a week · Licensed, bonded & insured

“We're a 24/7 mobile locksmith service, which means whether you're locking up a newly rented apartment off Doughty Boulevard or reinforcing the front door of a family home near the Inwood Country Club, we bring everything needed right to your location. No waiting for a shop appointment, no hauling doors anywhere — we come to you. If you're ready to stop guessing about your home's security, call 516-981-3424 and we'll walk you through every option before a single screw turns.
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 Inwood, we reach the Inwood 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.
Why Deadbolt Installation Is Worth Doing Right
A deadbolt works differently from a door knob lock. Where a knob lock's spring latch can often be manipulated with basic tools or brute pressure, a deadbolt throws a solid steel bolt deep into the door frame's strike plate — there's no spring to compress, no shortcut to disengage it. That mechanical distinction is why security professionals consistently point to deadbolts as the baseline standard for any exterior door. But even a Grade 1 deadbolt from a reputable manufacturer like Schlage or Kwikset can underperform if it's installed in a weak or misaligned door frame, set at the wrong height, or paired with a flimsy strike plate that pulls out of soft wood under force.
Getting deadbolt installation right means measuring bore hole placement precisely, ensuring the bolt engages the strike box at the correct depth, and reinforcing the surrounding frame where needed. Our technicians carry the tools and hardware to handle all of that on-site. We work carefully to avoid unnecessary damage to your door or finish — our goal is always a clean, damage-free result that looks like it came from the factory.
Mortise Lock and Jimmy Proof Deadbolt Installation: Choosing the Right Lock for Your Door
Not every door takes the same lock, and in Inwood's mix of older wood-frame homes, newer construction, and multi-unit buildings, we see a wide variety of door preparations. A standard single-cylinder deadbolt is the right call for many residential exterior doors, but it's far from the only option. Jimmy proof deadbolt installation is a popular choice for apartment doors and doors with narrow stiles — this interlocking rim lock design resists prying and lateral force in a way that surface-mounted locks handle exceptionally well. If your door already has a mortise pocket cut into its edge, a mortise lock is almost always the superior path: it sits flush within the door body, offers combined deadbolt and latch function, and distributes force across a much larger footprint than a bored cylindrical lock.
A mortise lock installation requires more precise work than a standard deadbolt — the pocket depth, faceplate alignment, and spindle height all have to be exact — which is exactly why it shouldn't be a DIY project on a door you rely on every day. Our technicians are experienced with both older mortise formats common in New York's pre-war housing stock and modern European-style mortise bodies. Whether your Inwood home needs a fresh mortise lock, a jimmy proof rim deadbolt for a rental unit, or a Schlage B60N on a new solid-core door, we'll match the hardware to the door, not the other way around.
Deadbolt Installation for Residential and Commercial Properties Inwood
Residential doors and commercial doors face different demands, and the hardware reflects that. Homeowners in Inwood typically need reliable single- or double-cylinder deadbolts on front and back exterior doors, sometimes combined with smart lock compatibility if they want keypad or app-based access. Commercial locksmith work is a different conversation: storefronts, office suites, and multi-tenant buildings often require higher-grade hardware — ANSI Grade 1 mortise locks, surface-mounted rim deadbolts for fire-door compliance, or heavy-duty keypad deadbolts that can log access attempts. We handle both sides of that spectrum.
If you manage a small business on a commercial corridor or own a multi-family building anywhere in the 11096 zip code, upgrading your exterior access hardware is a practical investment in liability reduction and tenant safety. As your commercial locksmith, we can assess every exterior entry point, recommend appropriate hardware grades, and install everything in a single visit where the scope allows. We also offer rekeying alongside new hardware installation, so existing locks that are in good structural shape can simply get new keys cut to a fresh key code — no full replacement required unless the hardware itself is compromised.
What to Expect: Our Mobile Deadbolt Installation Process
When you call 516-981-3424, we'll ask a few quick questions — what kind of door you have, whether there's an existing lock or a fresh bore hole, and where you're located in Inwood. That lets us arrive with the right tools and a selection of hardware that fits your situation. Once on-site, the technician inspects the door, frame, and any existing hardware, then confirms an exact up-front price before any work begins. The factors that shape that quote include the type of lock being installed, the condition of the existing door preparation, whether new boring or frame reinforcement is needed, the time of day, and travel. There are no surprise charges added after the job.
Installation itself typically involves removing old hardware, verifying or cutting the bore hole to the correct diameter and backset, setting the deadbolt body and cylinder, aligning and securing the strike plate with long screws that reach into the door's structural framing, and testing the throw and key function through multiple cycles. If you have a door knob lock being replaced at the same time, we handle that in the same visit. We'll also talk through whether a double-cylinder deadbolt — which requires a key from both sides — is appropriate for your specific door configuration, and note the safety considerations involved. When we're done, the door operates smoothly, the lock throws cleanly, and you walk away with keys that work and a lock you can trust. For emergency locksmith situations where you need a lock replaced urgently after a break-in or a lost key, we're available around the clock — 24/7, 365 days a year.
Our Full Range of Lock and Door Security Services
Inwood Locksmith offers a comprehensive set of services for residential and commercial customers throughout the Inwood area. Our work includes: new deadbolt installation on exterior residential doors; jimmy proof deadbolt installation for apartment and rental unit doors; mortise lock installation and replacement; door knob lock installation and replacement; smart deadbolt and keypad lock installation; double-cylinder deadbolt installation for glass-adjacent doors; single-cylinder deadbolt upgrades; strike plate reinforcement and upgrade; door frame repair and reinforcement prior to lock installation; high-security cylinder upgrades for existing deadbolts; schlage deadbolt installation; kwikset deadbolt installation; rekeying deadbolts and knob locks to a new key code; master key system setup for multi-unit buildings; commercial grade mortise lock installation for storefronts and offices; rim lock and surface-mounted deadbolt installation; latch and deadbolt combination replacement; lock cylinder extraction after a broken key; emergency lock replacement after break-in or forced entry; eviction lock change service; mailbox lock installation and replacement; padlock installation for exterior gates and storage; electronic access control hardware installation; garage door lock and handle replacement; and door viewer (peephole) installation alongside lock work. Every service is performed by a trained, insured technician who arrives equipped for the job — no subcontracting, no sending an unqualified crew.
Frequently asked questions
How do I know if I need a new deadbolt or just a rekey?
A rekey is the right move when your lock hardware is structurally sound but the key control has been compromised — for example, after moving into a new home in Inwood, losing a key, or ending a tenancy. A full deadbolt installation is the better call when the existing lock is worn, damaged, a low-grade model that doesn't meet current security standards, or simply missing. Our technician will assess the hardware on-site and give you an honest recommendation before quoting any work.
What's the difference between a mortise lock and a standard deadbolt?
A standard cylindrical deadbolt is installed through a bored hole in the door face and is the most common type found in residential homes. A mortise lock is set into a rectangular pocket routed into the door's edge, allowing it to sit flush with the door and combine a deadbolt and a latch in a single, integrated body. Mortise locks are generally more robust and are common in older New York housing stock and commercial applications. If your door already has a mortise pocket, we almost always recommend staying with a mortise format rather than filling it and switching to a cylindrical lock.
Can you install a deadbolt on any exterior door?
Most standard exterior doors — solid wood, solid core, or metal — can accept a deadbolt installation without issue. Very thin hollow-core doors, doors with large glass panels close to the lock area, or doors with heavily decorative profiles may require a different hardware type, such as a surface-mounted jimmy proof deadbolt, or a frame reinforcement step before installation. We evaluate the door on arrival and tell you exactly what's needed and why before starting any work.
How is the price for deadbolt installation determined?
Several factors go into the final quote: the type of lock being installed (a basic cylindrical deadbolt versus a full mortise lock or a smart lock), whether the door requires new boring or frame work, the hardware brand and grade you choose, the time of day the work is performed, and travel distance to your location in or around Inwood. We confirm an exact price with you before any work begins — what you approve is what you pay.
Do you offer emergency deadbolt replacement at night or on weekends?
Yes. Inwood Locksmith operates 24 hours a day, 7 days a week, including holidays. If you've experienced a break-in, a lock failure, or any situation that leaves your door unsecured, call us at 516-981-3424 and we'll dispatch a trained technician to your location. Emergency locksmith response is part of our core service, not an add-on — we treat an unsecured door at 2 a.m. with the same urgency as a daytime appointment.
Will the installation damage my door or its finish?
Our technicians work carefully to complete deadbolt installation with minimal impact on your door's surface and finish. When an existing bore hole is properly sized and the door is in good condition, the work is entirely non-destructive. If a new bore hole is required, we use the correct-diameter hole saw and clean up thoroughly after. Any situation where we anticipate visible modification — for example, widening an existing hole for a larger backset — we explain that clearly before starting so there are no surprises.