Deadbolt Installation
When a door between your family and the outside world relies on a worn knob lock or an aging latch, upgrading to a deadbolt is one of the most impactful security decisions a New Hyde Park homeowner or business owner can make. At New Hyde Park Locksmith, our trained, insured technicians arrive at your door — whether you're on Jericho Turnpike, off Marcus Avenue, or anywhere across Nassau County — fully equipped to handle single-cylinder and double-cylinder deadbolt installation on the same visit, no second trip required.
Open 24 hours, 7 days a week · Licensed, bonded & insured
We operate 24/7 as a mobile locksmith service, which means we come to you. There's no shop to visit, no waiting for an appointment window that doesn't fit your schedule. Whether you're replacing a builder-grade deadbolt on a residential front door, upgrading a multi-unit property's entry hardware, or reinforcing a commercial storefront after a break-in scare, our team brings the tools, the hardware knowledge, and the hands-on experience to get it done right — and damage-free wherever the door and frame allow.
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 New Hyde Park, we reach the New Hyde Park 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.
Single-Cylinder vs. Double-Cylinder Deadbolt Installation: Which Do You Need?
A single-cylinder deadbolt is the most common type found on residential exterior doors in New Hyde Park. It uses a keyed cylinder on the exterior and a thumb-turn on the interior, so occupants can exit quickly without searching for a key — an important safety feature in an emergency. A double-cylinder deadbolt, by contrast, requires a key on both sides. That added layer is often chosen for doors with glass panels nearby, where a burglar could otherwise break the glass, reach in, and turn a thumb-turn to unlock the door. Both configurations have real, legitimate applications, and choosing the wrong one for your specific door and household situation is a mistake our experienced technicians help you avoid before a single screw is turned.
During every deadbolt installation visit, our technicians assess your door material (wood, steel, fiberglass), the existing borehole diameter, the door thickness, the frame condition, and whether your current strike plate is reinforced. A poorly anchored strike plate is often the weakest link — more so than the lock itself. We correct that during the installation, upgrading to a heavy-duty strike plate with longer screws that anchor into the stud behind the jamb, not just the trim. That detail alone dramatically increases kick-in resistance and is something many general handymen skip entirely.
Mortise Lock and Jimmy-Proof Deadbolt Installation for Doors That Need More
Not every door is suited for a standard cylindrical deadbolt. Older homes and many commercial properties in New Hyde Park — particularly those with solid-wood doors that predate modern boring standards — are better served by a mortise lock. A mortise lock fits into a rectangular pocket (the mortise) cut into the edge of the door and combines a latch, a deadbolt, and sometimes additional security features into one integrated unit. Our technicians are specifically experienced in mortise lock installation and replacement, treating it as a core service rather than a specialty add-on. If your door already has a mortise pocket from an older lock, we can upgrade the cylinder and hardware without damaging the door's integrity.
For apartment doors, metal doors, and doors without a traditional doorframe rabbet, a jimmy-proof deadbolt installation is often the right call. Jimmy-proof deadbolts — sometimes called rim deadbolts — mount on the surface of the door and interlock with a strike that wraps around the doorframe, making prying attacks extremely difficult. They're a favorite for New York-area apartments and secondary entry doors precisely because they add serious resistance without requiring a new borehole. Our team carries inventory of jimmy-proof units and can assess on arrival whether your door is a better candidate for a rim-mount or a mortised solution. If you're unsure which direction to go, call us at (516) 494-3964 — we answer 24/7 and can talk through the options before we even dispatch.
Residential, Commercial, and Emergency Locksmith Deadbolt Services We Provide
Our mobile operation covers a wide spectrum of needs across New Hyde Park and the surrounding Nassau County area. Below is a representative list of the specific deadbolt and related lock services our trained technicians perform on every call. Residential services include: single-cylinder deadbolt installation on wood and steel doors; double-cylinder deadbolt installation on glass-panel doors; mortise lock installation and cylinder replacement; jimmy-proof deadbolt installation on apartment and condo entry doors; door knob lock replacement paired with new deadbolt installation; Grade 1 and Grade 2 deadbolt upgrades (Schlage, Kwikset, and similar hardware); strike plate reinforcement and long-screw upgrade; deadbolt rekey to match existing keys; deadbolt installation on garage entry doors; sliding patio door deadbolt and pin-lock addition; peephole installation alongside deadbolt work; and lock replacement after a break-in or attempted forced entry.
On the commercial locksmith side, our technicians handle: mortise lock installation on storefront and office doors; double-cylinder deadbolt installation on retail entry doors with glass lites; master-keyed deadbolt system installation across multi-door commercial properties; deadbolt installation on server rooms and restricted-access interior doors; panic bar and exit device integration with deadbolt hardware; deadbolt installation on hollow-metal commercial doors; access control-compatible deadbolt preparation; high-security deadbolt installation (medeco-style cylinders and restricted keyways); and deadbolt replacement after tenant turnover or staff changes. For 24/7 emergency locksmith calls — including post-break-in door securing, lockout situations where the deadbolt is the point of failure, and urgent hardware replacement — we dispatch around the clock, including holidays. Our automotive locksmith services (car lockouts, transponder key issues, ignition work) are separate from our door hardware work but handled by the same mobile team, so one call to (516) 494-3964 connects you to technicians who cover all of it.
What Determines the Cost of a Deadbolt Installation Near New Hyde Park?
Pricing for a locksmith deadbolt installation isn't one-size-fits-all, and any quote you receive that doesn't account for your specific situation should raise a flag. The factors that shape your final price include: the type and grade of deadbolt or mortise lock being installed (hardware cost varies significantly by brand, grade, and features like anti-pick pins or anti-drill plates); whether the door requires a new borehole or only uses an existing cutout; the time of day, since after-hours and emergency locksmith calls involve different dispatch logistics than scheduled daytime work; travel distance from our current position to your address; whether additional work is needed (strike plate replacement, frame repair, door alignment); and the number of locks being installed in one visit — multi-lock visits often change the structure of the quote. We confirm an exact, up-front price before any work begins, so there are no surprises on your end when the job is done. There is no pressure to proceed if the quote doesn't work for you. For questions about what an emergency locksmith cost looks like for your specific situation, or to get a straight answer about the average call-out fee structure we use, just call us directly — our team will walk you through it honestly before dispatching.
Why New Hyde Park Residents and Business Owners Call Us First
New Hyde Park sits at a busy crossroads — literally and figuratively. With the Long Island Rail Road's New Hyde Park station drawing commuters daily and major commercial corridors like Hillside Avenue and New Hyde Park Road running through the area, the community is a mix of long-established residential blocks and active retail and service businesses. That density means both homes and commercial storefronts here benefit from serious door hardware, and it's why we treat every deadbolt installation call — residential or commercial — with the same level of attention to the door's specific construction and the customer's actual security goals.
Our technicians are experienced across the range of door types common in this part of Nassau County: older solid-wood doors in mid-century homes, steel-clad doors on more recent construction, hollow-metal frames on commercial units near Lakeville Road, and everything in between. We carry a selection of hardware on every truck so we're not making a separate trip to a supply house mid-job. We perform our work with care for your door's finish and frame — damage-free installation is our standard approach, not a premium option. And because we're insured and operate 24/7, you have genuine recourse and real availability when something goes wrong at an inconvenient hour. Call (516) 494-3964 any time — day, night, or holiday — and a live team member will answer.
Frequently asked questions
Answers to what our customers ask most. Still unsure? Just call.
Can you recommend a locksmith near New Hyde Park, NY for deadbolt installation on an older wood door?+
Absolutely — our team works regularly on the older solid-wood and hollow-core doors common throughout New Hyde Park's residential neighborhoods. We assess the door's condition, existing borehole size, and frame integrity before recommending the right deadbolt type. For doors that aren't suited to a standard cylindrical deadbolt, we may recommend a mortise lock or a jimmy-proof rim deadbolt instead. Call (516) 494-3964 and describe your door — we'll give you an honest read before we even dispatch.
How much should a locksmith cost per hour for deadbolt installation, and do you charge by the hour?+
Most locksmith deadbolt installation jobs are quoted as a flat service price rather than an hourly rate, because the time required depends on the specific lock type, door condition, and any additional work like strike plate replacement or frame reinforcement. Factors that influence the quote include the grade and brand of hardware, the time of day, travel distance, and whether any prep work is needed on the door. We confirm an exact price up front — before any work begins — so you're never guessing at a final total.
What is the average call-out fee for a locksmith, and does it apply to deadbolt installation visits?+
Call-out or service fees vary by company and by the circumstances of the call — time of day, distance traveled, and whether it's a standard appointment or an emergency locksmith dispatch all play a role. We're transparent about how our pricing is structured: when you call (516) 494-3964, we'll explain what goes into your specific quote, including any service or dispatch component, before we send a technician. Nothing is added after the fact.
How much does an emergency locksmith cost near me for a late-night deadbolt replacement?+
Emergency locksmith cost for after-hours deadbolt work is shaped by several variables: the type of lock needed, the condition of the existing door hardware, travel distance to your location in or around New Hyde Park, and the time of dispatch. After-hours calls do carry different logistics than daytime appointments, and that's reflected in pricing — but we're always transparent about it. Call us at (516) 494-3964 and we'll give you a clear, confirmed quote before a technician heads your way.
What's the difference between a single-cylinder and double-cylinder deadbolt, and which should I install?+
A single-cylinder deadbolt uses a key on the outside and a thumb-turn on the inside — the most common choice for standard residential exterior doors. A double-cylinder requires a key on both sides, which is useful when the door has glass panels that could be broken to reach a thumb-turn. The tradeoff is that double-cylinder locks can slow egress in an emergency if a key isn't immediately at hand. Our technicians walk you through this decision based on your specific door, household, and safety priorities — never a one-size recommendation.
Do you install mortise locks, and how is that different from a standard deadbolt installation?+
Yes — mortise lock installation is one of our core services, not a specialty add-on. A mortise lock fits into a pocket cut into the door's edge and integrates a latch, deadbolt, and other components into one unit. It's common on older New Hyde Park homes and on commercial doors. Standard deadbolts use a round borehole and are simpler to install on most modern doors, but mortise locks offer a different profile of security and durability that suits certain door constructions far better. We assess which solution is right for your door and explain the difference before doing any work.