Deadbolt Installation
If your apartment door in Hell's Kitchen or your brownstone entrance in Washington Heights still relies on a spring latch alone, you're one shimmed card away from an unwanted visitor. A properly installed deadbolt is the single most cost-effective upgrade you can make to a residential door — and getting it right means more than drilling a hole and turning a screw. Bolt throw length, strike-plate depth, door-frame reinforcement, and alignment all determine whether that lock actually stops a forced entry or just slows it down by three seconds.
Open 24 hours, 7 days a week · Licensed, bonded & insured
“At 7th Ave Locksmith, our mobile technicians come directly to your door across the FL New York area — no shop visit, no waiting around. We handle single-cylinder and double-cylinder deadbolt installation on apartment doors, house entries, and everything in between, using a damage-free approach wherever the door condition allows. Whether you've just moved into a new rental on 7th Avenue itself or you're hardening a rear entrance after a close call, call (646) 349-7149 and we'll dispatch a trained, insured technician to you — 24 hours a day, seven days a week.
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 FL New York, we reach the FL New York 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.
Single vs. Double-Cylinder Deadbolt Installation: Which Does Your Door Actually Need?
A single-cylinder deadbolt uses a key on the exterior and a thumb-turn on the interior — the standard choice for most apartment and house doors where a quick exit matters. A double-cylinder version requires a key on both sides, which eliminates the risk of a burglar breaking a nearby glass panel and reaching in to turn a knob, but it also means you need a key in hand to exit in an emergency. New York City building codes and fire codes have specific rules about double-cylinder locks on certain door types, so this isn't a decision to make based on a product listing alone. Our technicians walk you through the tradeoffs before any hardware is purchased, ensuring whatever goes on your door is both secure and code-compliant for your specific FL New York building type.
The grade of the deadbolt matters as much as the cylinder type. ANSI Grade 1 hardware — offered by brands like Schlage and Kwikset — withstands significantly more kick force and pick resistance than Grade 3 consumer-grade locks. We stock and install a range of grades and finishes, and we can retrofit an existing bore or cut a new one cleanly. For doors with non-standard thickness or steel-core construction common in older Manhattan walk-ups, we bring the right tools to get the job done without splitting the door edge or leaving gaps around the faceplate.
Mortise Lock and Jimmy-Proof Deadbolt Installation for New York Doors
A standard deadbolt is only part of the picture for many New York apartments. The mortise lock — a rectangular lock body mortised into the edge of the door itself — combines a latch, a deadbolt, and sometimes a secondary bolt into a single reinforced unit. Mortise locks are the dominant hardware type in pre-war apartment buildings across the FL New York area, and they require a different installation technique than a cylindrical deadbolt: precise pocket routing, correct trim alignment, and a strike box that's set deep enough into the frame to resist spreading. Our technicians are experienced with both the older Corbin and modern Mul-T-Lock style mortise bodies common throughout the borough's aging housing stock.
Jimmy-proof deadbolt installation is another frequently requested service for New York rental units. Unlike a standard deadbolt that throws a bolt horizontally into the strike plate, a jimmy-proof rim lock interlocks vertically with a staple mounted on the door frame — making it extremely difficult to spread the frame and pop the bolt. These locks mount on the door's surface rather than inside it, which makes them ideal for metal apartment doors where cutting a new bore isn't practical. If you're unsure whether a jimmy-proof rim lock or a mortise lock upgrade is the right call for your specific door, our team will assess the door, the frame condition, and the surrounding wall construction before recommending anything. Reach out at (646) 349-7149 — we're available around the clock.
What Goes Into a Professional Deadbolt Installation Quote
Pricing for deadbolt installation isn't one-size-fits-all, and any technician who quotes a flat number without seeing your door is guessing. The factors that shape your final cost include the type of lock being installed (single-cylinder, double-cylinder, mortise, or jimmy-proof rim), whether an existing bore needs to be enlarged or a new one cut from scratch, the door material (hollow-core wood, solid wood, steel, or fiberglass), the time of day the work is performed, and the travel distance to your specific address in the FL New York area. Parts — the lock body, the strike plate, any door reinforcement hardware — are itemized separately from labor. Before our technician picks up a single tool, we confirm an exact up-front price so there are no surprises when the job is done.
We also offer assessments for the full door system, not just the lock cylinder. A Grade 1 deadbolt installed into a weak strike plate held by half-inch screws provides almost no real security. Our technicians routinely upgrade strike plates to heavy-gauge steel versions secured with three-inch screws that reach the stud behind the door frame — a small additional step that dramatically changes how the door performs under force. This is the kind of detail that separates a security-minded installation from simply swapping hardware.
Emergency Locksmith, Commercial Locksmith, and Door Knob Lock Services Beyond the Deadbolt
Deadbolt installation is one piece of a broader door security picture. As a full-service mobile locksmith, 7th Ave Locksmith also handles emergency locksmith calls when you're locked out of your apartment at 2 a.m. on a Tuesday — no forced entry, no damage to your door, just a trained technician working the lock the right way. We carry equipment for residential and commercial locksmith work, including office suites, retail storefronts, and multi-unit buildings along the commercial corridors of FL New York. For businesses, that often means installing or re-keying mortise locks, panic hardware, and high-security cylinders across multiple doors in a single visit.
Our door knob lock services round out the residential package — replacing worn passage sets, upgrading to keyed entry knobs that match your new deadbolt finish, or re-keying existing hardware so that a former tenant's copy no longer works. The full list of services we provide from a single mobile dispatch includes: single-cylinder deadbolt installation, double-cylinder deadbolt installation, mortise lock installation and repair, jimmy-proof rim lock installation, door knob lock replacement and re-key, high-security cylinder upgrades (Medeco, Mul-T-Lock, Abloy), strike plate reinforcement, door frame repair, lock re-keying after a move or lease change, master key system setup for multi-unit buildings, smart lock and keypad deadbolt installation, access control integration for commercial doors, padlock installation on gate and storage entries, mailbox lock replacement, garage side-door deadbolt installation, patio and sliding-door pin lock installation, peephole replacement and wide-angle viewer installation, door chain and security bar installation, broken key extraction, lock lubrication and maintenance, emergency lockout service (residential), emergency lockout service (commercial), lock-out service after eviction or lease dispute, safe lock service and combination changes, and automotive lockout response for drivers stranded in the FL New York area. Every one of these services arrives at your address — you never need to come to us. Call (646) 349-7149 any time, day or night, and we'll have a technician on the way.
Local Knowledge That Makes a Difference on the Job
Working in FL New York means knowing that a 1920s door on a walk-up near the Port Authority is going to behave differently from a modern steel door in a newer high-rise closer to Hudson Yards. Door frames in older buildings often have settled, meaning the bore and the strike aren't perfectly aligned anymore — something a technician without experience in older New York construction won't anticipate. We work across the full FL New York service area, from the residential side streets between 7th and 8th Avenues to the larger apartment complexes further uptown, and that hands-on familiarity means fewer surprises on the job and cleaner results on the door.
Frequently asked questions
How long does a standard deadbolt installation take?+
For a door with an existing bore of the right diameter, a single-cylinder deadbolt installation typically takes 30 to 60 minutes, including alignment checks and testing. A mortise lock installation or a job that requires cutting a new bore takes longer — often 90 minutes to two hours depending on door material. Our technician will give you a realistic time estimate before starting work.
Can you install a deadbolt on a metal apartment door without damaging it?+
Yes, in most cases. Metal apartment doors common in FL New York buildings require a specific drill bit set and a slower, more controlled approach than wood doors. Our technicians are equipped for steel and aluminum door installation and take care to keep cut edges clean. If a door has unusual construction — a foam core, reinforced steel panels, or a fire rating — we'll flag that before drilling.
What's the difference between a jimmy-proof deadbolt and a regular deadbolt?+
A standard deadbolt throws a bolt horizontally into a strike plate mounted in the door frame. A jimmy-proof rim lock (also called a vertical deadbolt) interlocks with a staple using vertical bolts, making it nearly impossible to spread the door frame and release the bolt. Jimmy-proof locks are surface-mounted, making them a strong option for apartment doors where cutting into the door edge isn't practical or permitted by your landlord.
Do I need my landlord's permission to install a deadbolt in a New York City apartment?+
New York State law actually gives tenants the right to install certain additional locks, including a deadbolt, on their apartment door — provided they supply the landlord with a copy of the key upon request. However, lease terms vary, and some buildings have specific rules about what hardware is allowed. We recommend confirming with your building management before installation, particularly for double-cylinder or mortise-style locks that modify the door edge.
What factors affect the price of deadbolt installation?+
Several variables shape the final quote: the type of lock (single-cylinder, double-cylinder, mortise, jimmy-proof rim), whether a new bore needs to be cut or an existing one enlarged, the door material and thickness, any additional hardware like reinforced strike plates, the time of day the work is performed, and travel distance within our FL New York service area. We always confirm an exact price with you before any work begins — no hidden charges after the job is done.
Do you offer 24/7 emergency deadbolt installation if I move in late at night or lose my keys?+
Absolutely. Our mobile technicians are available 24 hours a day, every day of the year. Whether you've just picked up keys to a new apartment on a Friday night and need the locks changed immediately, or you're dealing with a broken lock mechanism at 3 a.m., call (646) 349-7149 and we'll dispatch a trained, insured technician to your address anywhere in the FL New York area.