Deadbolt Installation
If your exterior door still relies on a basic spring latch or an aging single-cylinder lock, your home in Garden City is carrying more risk than it should. Deadbolt installation is one of the highest-return security upgrades any homeowner or landlord can make — and when it is done correctly the first time, you get a bolt that seats deep into the door frame, resists kick-in attacks, and outlasts the door itself. Garden City Locksmith Services sends trained, insured technicians directly to your address — whether that is a Colonial on Cambridge Avenue, a Tudor off Eleventh Street, or a garden apartment near the Roosevelt Field corridor — so there is never a need to haul hardware to a shop or wait days for a scheduled contractor.
Open 24 hours, 7 days a week · Licensed, bonded & insured

What sets a professional deadbolt fitting apart from a DIY weekend project is precision. The strike plate must align perfectly with the bolt throw, the bore must be sized for the exact cylinder you choose, and the door edge must be chiseled cleanly so the faceplate sits flush. A misaligned deadbolt can actually weaken a door by introducing stress fractures around the bore. Our mobile team carries the tooling and the inventory to complete most new deadbolt fittings in a single visit, and we confirm an exact up-front price before any work begins — no invoices that expand after the job.
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 Garden City, we reach the Garden City 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.
Deadbolt Installation for Exterior Doors — What the Job Actually Involves
Fitting a new deadbolt to an exterior door is more involved than sliding a bolt through a pre-drilled hole. Our technician starts with a door assessment: checking the door material (solid wood, steel-skin, fiberglass composite), the stile width, the existing bore diameter, and whether the frame is shimmed and plumb. Garden City's housing stock spans everything from 1920s Tudors with thick solid-core doors to post-war brick ranches with thinner stiles — each scenario calls for different hardware sizing and, sometimes, a reinforced strike box rather than a standard strike plate. Once the door profile is confirmed, the correct lock body is selected, the bore is opened or adjusted to spec, the cylinder is set, and the strike is mortised into the frame so the bolt has a full one-inch throw into solid wood or steel.
We work damage-free wherever the existing door allows it. That means no unnecessary chiseling, no oversized pilot holes, and no forcing of hardware that does not fit the frame geometry. When an old bore is worn or the wrong diameter, we use a filler plate and re-bore cleanly rather than leaving a patchwork gap. The result is a finished installation that looks factory-fitted and performs to the lock manufacturer's specification.

Mortise Lock and Jimmy Proof Deadbolt Options We Fit
Not every exterior door calls for the same lock style, and matching the correct mechanism to the door is a core part of what makes our locksmith mortise lock service valuable. A mortise lock is recessed into the door body itself rather than surface-mounted, giving it exceptional resistance to lateral prying because the entire chassis is enclosed within the door stile. Older Garden City homes — particularly the substantial Tudors and Colonials in the historic blocks near Cathedral Avenue — were originally built with mortise hardware, and replacing a failed mortise lock requires skill: the pocket must be cleared, the new body must drop in squarely, and the rose plates must align with the existing trim holes. Our technicians carry the gauges and chisels to complete mortise replacements cleanly.
For doors where a full mortise pocket is not practical, a jimmy proof deadbolt installation is often the most secure alternative. Jimmy proof deadbolts interlock with a surface-mounted rim strike, making them nearly impossible to spread apart with a pry bar — the bolt actually hooks rather than simply projects, so lateral force works against the lock rather than with it. They are particularly popular on steel apartment doors and secondary entry points in Garden City rental properties. We also fit single-cylinder and double-cylinder deadbolts from hardware lines such as Schlage and Kwikset, and we can key multiple locks alike so one key operates your front door, rear door, and garage entry.

Emergency Locksmith Response and Same-Day Deadbolt Fitting
Security needs rarely arise on a convenient schedule. A broken deadbolt discovered at midnight, a lock damaged after an attempted break-in, or a door knob lock that fails on moving day — these situations require a team that is actually available when you call. Garden City Locksmith Services operates around the clock, every day of the year. When you call 516-689-1988, you reach a live dispatcher who logs your address and routes the nearest available technician to you — not a call center that schedules you for next Tuesday. Our emergency locksmith response covers all of Garden City, including the Village of Garden City, the surrounding Nassau County hamlets, and the adjacent neighborhoods that share the 11530 ZIP code.
Because we are mobile and fully stocked, most emergency deadbolt calls do not require a second visit for parts. The technician arrives with a van equipped with common bore templates, multiple lock bodies across security grades, strike reinforcement kits, and the cylinder tooling to rekey on the spot if needed. If you have just moved into a home on Rockaway Avenue and want the locks changed before unpacking, or if a door knob lock on your side entry has seized after a wet winter, we can convert, replace, or upgrade in one stop.

Commercial Locksmith Deadbolt Services for Garden City Businesses
Exterior security for a retail storefront on Seventh Street, a professional office suite near the Garden City Hotel, or a multi-unit property managed by a local landlord involves a different set of requirements than a single-family residence. Our commercial locksmith service addresses Grade 1 deadbolt installation for high-traffic doors, mortise lock replacement on older commercial frames, and master key system integration so that one key hierarchy covers multiple entry points without duplicating cylinders. We also fit door knob lock and deadbolt combinations with coordinated keyways, which simplifies key management for staff while maintaining per-door access control.
Pricing for commercial work depends on several factors: the number of doors, the lock grade specified, the door material and frame condition, the time of day the work is needed, and any travel considerations for the specific address. We walk through all of these with you before work begins and confirm a firm price so there are no surprises on the invoice. For after-hours commercial calls — a broken deadbolt on a restaurant back door at 2 a.m., for example — our 24/7 availability means the door is secured before you leave the property. Call 516-689-1988 any time to discuss your commercial security needs with a trained technician.

25 Specific Deadbolt and Door Lock Services We Provide
Our team handles a wide range of lock and security work for residential, rental, and commercial clients across Garden City and the surrounding Nassau County area. Services include: new single-cylinder deadbolt installation on exterior wood doors; new double-cylinder deadbolt installation on glass-panel doors; jimmy proof deadbolt installation on steel apartment doors; mortise lock replacement on historic and vintage door frames; mortise lock repair and cylinder re-core; Schlage deadbolt fitting and keying; Kwikset deadbolt fitting and keying; high-security Grade 1 deadbolt installation for commercial entry doors; Grade 2 deadbolt installation for residential applications; deadbolt installation on fiberglass exterior doors; deadbolt installation on steel-skin exterior doors; strike plate upgrade to a reinforced three-inch security strike; door frame reinforcement alongside new deadbolt fitting; door knob lock replacement combined with deadbolt installation; door knob lock re-keying to match existing deadbolt key; master key system setup spanning multiple deadbolts; lock-alike keying for front, rear, and garage entry points; old deadbolt removal and bore patching before new installation; bump-resistant cylinder upgrade within existing deadbolt housing; pick-resistant cylinder upgrade for high-risk locations; double-bore door preparation for knob-and-deadbolt combos; peephole installation alongside deadbolt fitting; emergency deadbolt replacement after attempted forced entry; after-hours commercial deadbolt repair and securing; and rental property re-key with new deadbolt fitting between tenants.

What Determines the Price of Your Deadbolt Installation
We are often asked for a ballpark before the technician arrives, and while we understand the impulse, an honest answer requires a few specifics. The factors that shape your final quote include the type of lock being installed (a standard residential deadbolt involves different labor and parts than a commercial-grade mortise lock), the condition of the existing door and frame (a fresh bore on a solid wood door is straightforward; correcting a mis-bored or damaged frame takes more time), the time of day (after-hours and overnight calls reflect the cost of 24/7 staffing), and travel distance from our nearest technician to your address. We confirm the exact price with you before any work begins, and that number does not change unless the scope of work changes — which we also discuss with you before proceeding. There are no hidden call-out fees revealed at the end of the job.

Frequently asked questions
How long does a typical deadbolt installation take on an exterior door?
For a standard residential exterior door with an existing bore in good condition, most installations are complete in thirty to sixty minutes. If the bore needs to be opened from scratch, the frame requires a strike pocket, or a mortise lock body needs to be fitted and aligned, the job runs closer to sixty to ninety minutes. Our technician will give you a realistic time estimate after assessing the door on arrival.
Can you install a deadbolt on a door that has never had one?
Yes. If your door has only a door knob lock and no existing deadbolt bore, we cut a new bore at the correct height, chisel the edge bore for the latch bolt, and mortise the strike pocket into the frame. We carry bore templates for the standard 2-3/8 inch and 2-3/4 inch backsets as well as the common 2-1/8 inch face bore diameter, so we can prepare most solid wood, steel, and fiberglass doors in a single visit.
What is a jimmy proof deadbolt and is it more secure than a standard deadbolt?
A jimmy proof deadbolt uses an interlocking rim-mount design: the bolt hooks into the strike box rather than simply projecting into it, so prying the door frame apart does not free the bolt — the force works against the interlock. This makes it highly resistant to the crowbar-style attacks that can defeat a standard deadbolt if the strike plate screws are short. It is a particularly strong choice for steel apartment doors and secondary entries. Whether it is the right option for your specific door depends on the door type and frame, which our technician will assess on arrival.
Can you re-key a new deadbolt to match my existing house key?
In most cases, yes. If your new deadbolt uses the same keyway family as your existing locks — which is common within Schlage or Kwikset product lines — we can re-pin the cylinder on site so one key operates all your locks. If the keyways differ, we discuss your options, which may include a lock-alike cylinder upgrade or a master key setup. We carry pinning kits for the most common residential keyways in our service vehicles.
Do you service Garden City rental properties and can you fit new deadbolts between tenants?
Absolutely. Tenant turnover re-keys and deadbolt upgrades are a regular part of our work in Garden City. We can replace or re-key every lock on the property in one visit so the new tenant has fresh, unique keys from day one. If the existing locks are worn or below current security standards, we recommend a deadbolt upgrade at the same time — and we can key all new hardware alike to simplify property management.
How do I get a price for my deadbolt installation job?
Call us at 516-689-1988 any time — we answer 24/7. Describe the door type, the number of doors, and whether you already have hardware or need us to supply it. We will explain what factors shape the quote and confirm a firm price before the technician begins any work. There are no surprise charges added after the job is done.
Locked out or need a lock fixed? We are on the way.
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516-689-1988