Rekeying & Door Knob Locks
When you move into a new home off Post Avenue, discover your spare key is missing, or simply want tighter control over who can enter your property, rekeying your locks is one of the smartest security decisions you can make. Westbury Locksmiths is a fully mobile, insured locksmith service based right here in Westbury, NY — meaning our trained technicians come directly to your door, typically within 20 minutes, any time of day or night. Whether you have a standard door knob lock, a heavy-duty mortise lock, or an older knob set that needs a full swap, we handle it all on-site, damage-free wherever possible.
Open 24 hours, 7 days a week · Licensed, bonded & insured

Westbury is a dense, active community — from the residential blocks near Drexel Avenue to the commercial corridors along Old Country Road — and security needs vary block by block. That's why we don't offer one-size-fits-all solutions. Every service call starts with an honest assessment of your existing hardware, followed by a confirmed up-front price before any work begins. No surprises, no pressure. If you need help right now, call (516) 400-4528 — we answer 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 Westbury, we reach the Westbury 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 Rekeying Your Door Knob Lock Is the Smartest First Step After a Move or Lost Key
Rekeying is the process of reconfiguring the internal pin tumblers of your existing lock cylinder so that the old key no longer works — and a newly cut key does. It is not the same as replacing the entire lock, and in many situations it is the more practical choice. If your door knob with lock and key is structurally sound and the hardware is in good condition, our technicians can rekey it in minutes using professional pinning kits, leaving your existing hardware in place. This is particularly valuable when you've just moved into a Westbury home and have no way of knowing how many copies of the original key are floating around the neighborhood.
That said, rekeying is not always the right call. If the cylinder is worn, if you're upgrading from a basic builder-grade door knob lock to something with greater pick resistance, or if the lock has been tampered with, a full replacement is the better investment. Our technicians will tell you plainly which option makes sense for your situation — and if a mortise lock is what your door actually calls for, we carry and install those as well. A mortise lock sits inside a pocket cut into the door's edge, offering significantly more strength and resistance to forced entry than a surface-mounted knob set, and it's a common upgrade we perform on older Westbury homes and storefronts alike.
Replacing & Upgrading Door Knob Locks: From Standard Knobs to Mortise Lock Installations
Not every door knob with lock is built the same. Entry-grade knobs — the kind often pre-installed on rental units — offer minimal resistance and can be defeated quickly by someone who knows what they're doing. If you've ever wondered how to pick a door knob lock or how to pick a lock door knob, the honest answer is that lower-quality cylinders are far easier to compromise than most homeowners realize. Rather than relying on hardware that was chosen for cost over security, consider a replacement with a higher-grade cylinder, a double lock door knob configuration, or even a keypad lock door knob or smart lock door knob for keyless convenience. We supply and install all of these options.
For interior doors — a home office, a master bedroom, or a door knob with lock for bedroom privacy — the requirements are different than for an exterior entry point. We'll walk you through the appropriate grade and function for each door. On the commercial side, businesses along Old Country Road frequently need cylindrical commercial-grade knob sets, lever handles with restricted keyways, or full mortise lock systems to meet insurance requirements and withstand the heavier daily traffic of a retail or office environment. Our commercial locksmith services cover new installations, hardware upgrades, and master key systems across Westbury and the surrounding Nassau County area. Need to get started? Call (516) 400-4528 and we'll dispatch a technician to your location.
What to Do If You're Locked Out — Emergency Locksmith Response in Westbury NY
Locking yourself out of your home is stressful, but the right response is simpler than most people think. First, check all other entry points — a back door, a garage entry, or a window that may be unlocked. Look for a spare key left with a neighbor or family member. If none of those options pan out, the next call should be to a professional emergency locksmith, not an attempt to force entry yourself, which risks damaging your door frame, lock hardware, or worse. Our team handles lockouts with non-destructive techniques wherever possible, meaning we aim to open your door without drilling or damaging the lock — preserving the hardware you already have.
As a 24/7 mobile service, we respond to lockout calls across Westbury at any hour. Whether it's 2 a.m. on a Tuesday or a holiday weekend, the same trained, insured technicians answer the call. We verify ownership or occupancy before any work begins — this is a standard, non-negotiable step that protects you and the community. Once confirmed, we work quickly to restore your access. Our goal is always a damage-free entry, though in cases of a severely compromised or malfunctioning lock, replacement may be the cleaner solution — something we'll discuss with you openly before proceeding.
Our Full Range of Rekeying & Door Knob Lock Services for Westbury Residential and Commercial Properties
Westbury Locksmiths provides a comprehensive set of residential and commercial locksmith services — all mobile, all available around the clock. Our trained technicians come equipped to handle virtually any hardware challenge on the spot. Here is a detailed look at what we offer: 1. Rekeying single-cylinder door knob locks 2. Rekeying double-cylinder deadbolts 3. Rekeying entire home lock sets to one master key 4. Replacing worn or damaged door knob locks 5. Installing double lock door knob configurations for enhanced security 6. Installing keypad lock door knob systems for keyless entry 7. Installing smart lock door knob devices with app or voice control 8. Mortise lock installation on residential entry doors 9. Mortise lock replacement and repair for commercial storefronts 10. Commercial locksmith master key system design and installation 11. High-security cylinder upgrades (restricted keyway, anti-pick, anti-drill) 12. Door knob with lock for bedroom and interior privacy installations 13. Lock hardware upgrades after a break-in or attempted forced entry 14. Emergency locksmith response for residential lockouts 15. Emergency locksmith response for commercial lockouts 16. Non-destructive lock entry (damage-free where technique allows) 17. Lock replacement following a lost or stolen key 18. Deadbolt installation on doors currently using only a knob set 19. Reinforcing door frames and strike plates 20. Restricted key duplication control — preventing unauthorized copies 21. Lock cylinder extraction and replacement after a broken key 22. Broken key extraction from door knob locks and deadbolts 23. Gate and exterior padlock rekeying and replacement 24. Sliding door lock servicing and security bar installation 25. On-site security assessment and hardware recommendations for Westbury homes and businesses Every service begins with an honest evaluation and a confirmed price — factors that affect your final quote include the type and grade of hardware involved, the number of locks being serviced, time of day, and travel distance to your location. We confirm the exact figure before any work starts.
Frequently asked questions
What is a locksmith call out fee and what affects the total cost of my service?
A call out fee is the base charge for a technician traveling to your location — it covers dispatch, travel, and the initial assessment. Beyond that, the final price depends on factors such as the type of lock being serviced (a basic door knob lock versus a mortise lock involves different time and tooling), the number of locks, time of day, distance traveled, and whether replacement parts or new hardware are needed. At Westbury Locksmiths, we confirm a single, all-in price with you before any work begins, so there are no after-the-fact additions.
How much should a locksmith cost per hour, and do you charge hourly?
Locksmith pricing structures vary — some shops charge hourly, while others price per job. We price per service rather than per hour, which means you know the total cost upfront rather than watching a clock tick. The factors that shape that price include lock type, hardware needed, complexity of the work, and time of day. What we never do is start work before you've agreed to a confirmed figure. Call (516) 400-4528 for a no-pressure quote specific to your situation.
What locks can locksmiths not open?
Professionally trained locksmiths can open the vast majority of residential and commercial locks, including door knob locks, deadbolts, mortise locks, and padlocks. Extremely high-security locks with mul-tilock or biaxial cylinders may require more specialized techniques or, in rare cases, drilling — which we discuss with the customer before attempting. No legitimate locksmith will attempt entry without first verifying your ownership or right to access the property, regardless of the lock type.
Can a locksmith reprogram my key fob?
Key fob reprogramming is primarily an automotive service, and the answer depends on your vehicle's make, model, and year. Some older fobs can be reprogrammed on-site with the right equipment; others require a dealer-specific process. When you call (516) 400-4528, describe your vehicle and the issue and we'll tell you upfront whether it's something we can handle on a mobile basis in Westbury.
How much is a locksmith if I'm locked out of my house?
The cost of a house lockout call depends on the time of day (after-hours and overnight calls typically carry a higher rate), your location within or around Westbury, the type of lock on your door, and whether the lockout requires non-destructive entry or a lock replacement. We always confirm the price before we start work — you'll never be handed a bill that doesn't match what was discussed. Call (516) 400-4528 any time for an honest, upfront quote.
What do I do if I have locked myself out of my house?
Start with the basics: check all secondary entry points like back doors, side gates, or a garage entry. Contact a neighbor or family member who may have a spare key. If none of those options work, call a professional emergency locksmith rather than attempting to force entry, which can damage your door frame or lock hardware and create a bigger problem. Westbury Locksmiths responds to lockouts across Westbury 24 hours a day — call (516) 400-4528 and a trained, insured technician will typically be at your door within 20 minutes.