Door Knob Lock & Deadbolt Rekey
Moving into a new home on Snowden Avenue, a rental near the Ossining Metro-North station, or a condo overlooking the Hudson — one of the smartest first calls you can make is to have your locks rekeyed before you unpack a single box. You simply cannot know how many copies of the previous keys exist or who still holds them. Rekeying a door knob lock or deadbolt changes the internal pin configuration so that only your brand-new key works, rendering every old copy permanently useless — without replacing the hardware itself.
Open 24 hours, 7 days a week · Licensed, bonded & insured

Ossining Locksmith is a fully mobile, 24/7 locksmith service based right here in Ossining, NY. Our trained, insured technicians come directly to your address — no shop drop-off, no waiting days for an appointment. Whether you have lost a key, just signed a lease, or are finally tackling that deadbolt that came with the house years ago, we confirm an exact up-front price before any work begins, then handle everything on the spot. Call (914) 809-9457 any time — we answer around the clock.
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 Ossining, we reach the Ossining 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.
Why Rekeying Your Door Knob Lock or Deadbolt Is Smarter Than You Think
A standard door knob with lock and key uses a pin-tumbler cylinder: a series of spring-loaded pins that must align perfectly with the cuts on your key before the cylinder will turn. Rekeying simply replaces those pins with a new set that matches a freshly cut key — the lockset itself stays in place on your door. This means you get the security of a brand-new key combination in a fraction of the time and cost of full hardware replacement. It is especially valuable when you have multiple entry points, because our technician can rekey every knob lock and deadbolt on the property to operate on a single master key, eliminating the ring of keys that accumulates over the years.
Lost keys are the other major trigger. If a key goes missing — whether it slipped out of a pocket on the Ossining waterfront trail or was left in an Uber — the uncertainty alone is reason enough to act. A knob lock that has not been rekeyed after a lost key is a vulnerability you are simply hoping nobody exploits. Our emergency locksmith response means you do not have to spend a night wondering. We can typically arrive within roughly 20 minutes of your call anywhere in the Ossining area, verify your ownership or occupancy, and rekey the cylinder so the missing key is cryptographically dead.
Mortise Lock, Deadbolt & Door Knob Lock Rekey — Our Core Services
We work on the full range of residential and commercial lock hardware you will find throughout Westchester County. Mortise lock service is a cornerstone of what we do: mortise locks are the heavy-duty, pocket-set units common in older Ossining buildings, multi-family housing, and commercial storefronts along Main Street, and they require a skilled hand to disassemble, repin, and reassemble correctly. Alongside mortise lock work, our rekey menu covers standard deadbolts, single- and double-cylinder knob locks, lever-handle locksets, padlocks, and keypad or smart lock door knob conversions. Our commercial locksmith capability extends to master-key system design, restricted keyways, and high-security cylinder upgrades for office suites and retail spaces.
Here is a representative — though not exhaustive — list of the specific services our technicians perform on-site across Ossining and the surrounding area: (1) Residential deadbolt rekey, (2) Door knob lock rekey, (3) Mortise lock rekey and repair, (4) Master-key system setup, (5) Key duplication on-site, (6) Lock-out assistance with ownership verification, (7) Broken key extraction from cylinder, (8) Deadbolt installation (new door prep included), (9) Knob lock installation, (10) Mortise lock installation, (11) High-security cylinder upgrade (Schlage, Kwikset, Medeco-compatible), (12) Double lock door knob installation, (13) Smart lock door knob installation and programming, (14) Keypad deadbolt installation, (15) Rekey after eviction or tenant turnover, (16) Rekey after break-in or attempted forced entry, (17) Sliding glass door lock repair, (18) Patio door multi-point lock service, (19) Window lock installation, (20) Mailbox lock rekey, (21) Storage unit padlock replacement, (22) Garage entry door rekey, (23) Commercial storefront deadbolt rekey, (24) Office suite access control rekeying, (25) Safe lock assessment and combination change, (26) Emergency lock change after lost or stolen keys, (27) Door reinforcement hardware installation.
How Pricing Works — and What the Emergency Locksmith Call-Out Fee Covers
A common question we hear is some version of 'How much does a local locksmith charge?' or 'What is a locksmith call out fee?' — and the honest answer is that no two jobs are identical. The factors that shape your final quote include: the type and brand of lock hardware involved (a basic knob lock cylinder costs less to service than a high-security mortise lock), the number of locks being rekeyed in a single visit, the time of day (overnight and holiday calls involve different operational costs), travel distance from our current position to your address, and whether any replacement parts or new cylinders are needed. We never quote a price over the phone that then quietly changes at your door. Instead, our technician assesses the job on arrival and gives you a firm, all-in number before touching anything — you approve it first, full stop. We also accept all major credit and debit cards, so payment is never a hassle.
On the question of 'How much should a locksmith cost per hour?' — most residential rekey jobs are quoted as flat-rate service calls rather than hourly billing, because a skilled technician can rekey a standard deadbolt or door knob lock quickly and consistently. Hourly rates tend to apply more to complex commercial work, extended safe service, or multi-unit master-key projects where the scope is genuinely variable. Whatever the billing structure, we explain it clearly up front. If you are curious about ballpark expectations before we arrive, simply call (914) 809-9457 and describe your situation — we will walk you through what typically drives the cost for your specific lock type.
Security Context: What Ossining Homeowners Should Know
People sometimes ask about the crime rate in Ossining, NY when evaluating whether security upgrades are worthwhile. Ossining is a diverse, tight-knit Hudson River community, and like any Westchester village of its size, opportunistic property crimes — particularly residential break-ins — do occur, with some blocks closer to the train corridor seeing more foot traffic after hours. The Ossining Police Department regularly encourages residents to ensure their deadbolts and door knob locks are in working order and that keys are not left with unverified parties. Rekeying after a move or a lost key is one of the simplest, most cost-effective ways to remove a known vulnerability before it becomes a problem.
One thing we are frequently asked is 'What locks can locksmiths not open?' It is a fair question, and transparency matters here. Extremely high-security locks — certain certified pick-resistant and drill-resistant cylinders with anti-manipulation features — are designed to resist even skilled professional tools and techniques. We will never walk you through picking or bypassing a lock yourself; that is not safe, and it is not the right approach to a real security situation. What we will do is assess your current hardware, explain its actual resistance rating, and recommend upgrades if your existing locks fall short. If you are ever locked out, the right move is always to verify ownership and call a qualified professional — not to attempt a bypass that could damage the lock or, in the wrong hands, compromise your security further.
Frequently asked questions
How is rekeying a door knob lock different from replacing the whole lockset?
Rekeying changes only the internal pin tumblers inside the existing cylinder so a new key is required to operate it. The knob, the lock body, the strike plate, and the door hardware all stay exactly as they are. Replacement means removing all of that hardware and installing new components. Rekeying is faster, generates no hardware waste, and is the right choice whenever your existing lock is in good mechanical condition — which it usually is after a move or a lost key. Our technician checks the cylinder for wear first and will recommend full replacement only if the hardware is damaged, worn, or a security downgrade.
Can you rekey a mortise lock the same day I call?
Yes. Mortise lock service is a core part of what we do, and our mobile units carry the pin kits, follower tools, and spare mortise components needed for same-day work on most common mortise lock brands and configurations. Older Ossining multi-family buildings and period homes along the historic district often have antique mortise cases — we have the experience to work with those as well. Call (914) 809-9457 and describe your lock; we will confirm parts availability and an arrival window right on the call.
What factors affect how much a locksmith charges for a rekey in Ossining?
The main cost drivers are: the type of lock (a standard deadbolt cylinder is simpler to rekey than a high-security or mortise lock), the number of locks being serviced in a single visit, the time of day your call comes in, and whether any new parts — cylinders, pins, or keyway inserts — are needed. Travel distance from our current position to your Ossining address is also factored in. We give you a firm, all-in price on-site after assessing the job, before any work begins. We accept all major cards, and there are no surprise add-ons.
I lost my keys near the Ossining waterfront — do I really need to rekey, or is it probably fine?
We always recommend rekeying in this situation. A lost key with your address on a tag, or dropped near a vehicle with a registration visible, gives an opportunistic person both the key and a motive. Even without a clear link between the key and your address, the peace of mind from knowing the lost key is permanently useless is worth the service call. Our emergency locksmith team can typically reach you within about 20 minutes anywhere in the Ossining area, rekey every entry point, and have you secured before the end of the visit.
Do you install smart lock door knobs and keypad deadbolts, or only do traditional key cylinders?
We handle both. Smart lock door knob installation and programming is increasingly popular among Ossining homeowners who want keyless entry, remote access, or temporary access codes for house cleaners or contractors. We install and configure units that fit standard prep holes so existing door hardware does not need modification in most cases. If you are upgrading from a traditional knob lock to a smart lock, we can remove the old hardware, install the new unit, walk you through the app pairing or code setup, and verify the door alignment so the smart lock latches properly every time.
Can you set up a master key so one key opens all the locks in my house?
Yes — master-key system setup is one of our standard residential and commercial locksmith services. We rekey all of your deadbolts and door knob locks to a common master bitting, then cut individual 'change keys' for specific doors if needed (for example, a tenant key that opens only their unit). This is particularly useful for small landlords managing properties near the Ossining Metro-North corridor, or homeowners with multiple entry points who want to simplify without sacrificing the ability to have door-specific keys. We design and document the system so you can add locks to it in the future.
Locked out or need a lock fixed? We are on the way.
We answer 24/7 — talk to a real local locksmith now.
(914) 809-9457