Fast, Reliable Lock Installation & Rekey Across Franklin Square
Lock installation and rekeying in Franklin Square, NY typically costs $120-$380 depending on hardware type, with same-day service available throughout the 11010 ZIP code and surrounding Nassau County neighborhoods. We’re Strongbox Lock & Safe Co., and we’ve been driving out to Franklin Square from our New York City base for over 42 years. Call us at (877) 691-7931 and you’ll reach a live person, 24 hours a day, who can quote a flat price before any truck rolls.
Franklin Square homeowners know their hamlet’s housing stock - Cape Cods, ranches, and small colonials built during the 1945-1965 Long Island boom - presents lock problems that newer suburbs simply don’t face. The wooden door frames on these homes have settled for sixty-plus years. Strike plates drift. Deadbolts bind. And the coastal-influenced air, even several miles inland from the South Shore, works its way into exterior cylinders faster than most residents expect. Our Lock Installation & Rekey team stocks the legacy parts and understands the local framing quirks that determine whether a lock job lasts two years or twenty.
Why Strongbox Lock & Safe Co. of New York City Is Franklin Square’s Preferred Lock Installation & Rekey Company
We’ve earned our reputation in Franklin Square one job at a time. Homeowners here talk to neighbors. They remember the $19-ad locksmith who quoted one price on the phone and invoiced triple after drilling a perfectly good lock. We are the verifiable alternative: background-checked, uniformed technicians who present ID at the door, quote a real flat price before driving out, and back every installation and rekey with our written 90-Day Done Right Promise.
Our response time to Franklin Square averages under 45 minutes during business hours and under 75 minutes for overnight emergency calls. We know the local grid - Hempstead Turnpike to the north, the Washington Street corridor, the tight blocks around Wyngate Drive - and we don’t waste time getting lost in Nassau County’s suburban maze.
Franklin Square customers specifically mention our patience with older hardware in reviews. They note that we don’t push unnecessary replacements. When a 1950s mortise lockset can be rekeyed and adjusted instead of swapped for a modern bore-in deadbolt, we say so. Done right - and backed in writing.
Our Lock Installation & Rekey Services in Franklin Square
Smart Lock Installation
Smart lock installation in Franklin Square runs $220-$420 including hardware and labor, with Wi-Fi and Z-Wave options available from Yale and Baldwin. We pay special attention to door frame thickness on your postwar Cape Cod or colonial - many of these homes have 1-3/8 inch entry doors, thinner than modern pre-hungs, requiring specific adapter kits or modified strike mortises. We won’t install a smart lock that leaves a gaping hole or a half-seated deadbolt. The price we quote is the price you pay, and we’ll walk you through the app setup before we leave.

Keyless Entry & Keypad Lock Installation
Keypad locks and keyless entry systems suit Franklin Square families who want to stop hiding spare keys under flowerpots that every burglar in Nassau County knows to check. Installation ranges $180-$340. For homes near the Hempstead Turnpike commercial corridor with higher foot traffic, we recommend models with temporary code programming for dog walkers or visiting family. We install Schlage and Sargent keypads with weather-resistant housings - critical here, where Long Island humidity corrodes exposed electronics faster than inland climates.

Biometric Lock Installation
Biometric lock installation in Franklin Square starts at $280 and ranges to $520 for fingerprint-enabled deadbolts with backup key override. These systems appeal to homeowners who’ve experienced the frustration of fumbling for keys with arms full of groceries on a freezing January evening. We match the biometric sensor to your door’s exposure - full sun on a south-facing colonial entry can degrade cheaper sensors in two summers, so we specify thermal-rated units where needed. Every biometric install includes our 90-Day Done Right Promise: if the sensor fails to read reliably, we return and fix it. No paperwork, no arguing.

Key Duplication & Rekeying
Key duplication in Franklin Square costs $4-$12 per standard key, with high-security Mul-T-Lock and Medeco blanks running $18-$35. Rekeying an existing lock - changing the internal pin configuration so old keys no longer work - runs $45-$85 per cylinder. This is the most cost-effective security upgrade after a move, a lost key, or a change in household staffing. We rekey on-site, so your locks never leave the premises. For Franklin Square’s older homes with original mortise locksets, we carry the narrow-profile key blanks and wafer configurations that big-box key machines don’t stock.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Franklin Square
We install and service Yale, Baldwin, Mul-T-Lock, and Sargent hardware in Franklin Square, with factory-authorized parts kept in our local inventory. That means no two-week wait for a Baldwin mortise cylinder or a Mul-T-Lock high-security deadbolt. Our technicians carry the full keying kits for these brands on every truck, so rekeying happens in a single visit. For the 1950s rim locks and surface-mount latches still found on detached garages around Wyngate Drive, we maintain a separate stock of legacy strike plates, narrow backset latches, and adaptation hardware that most suburban locksmiths stopped carrying decades ago. Fast turnaround matters when your garage hasn’t locked in years.
Common Lock Installation & Rekey Problems We See in Franklin Square Homes
- Coastal corrosion freezes exterior deadbolt cylinders. Long Island’s humid, salt-influenced air accelerates corrosion inside garage door deadbolts and exposed strike hardware. We replace these cylinders with brass or stainless-steel internals rated for coastal exposure, typically every 3-5 years on ocean-facing exposures.
- Freeze-thaw cycles misalign deadbolts on settled frames. Franklin Square’s 60-year-old Cape Cod door frames swell in winter humidity and contract in dry cold, shifting strike plate alignment by an eighth-inch or more. The bolt hits the strike lip instead of entering cleanly. We shim, file, or relocate strikes rather than selling you a lock you don’t need.
- Original 1950s garage rim locks bind from hinge sag. In the tightly packed blocks around Wyngate Drive and the Washington Street corridor, detached one-car garages with original swing-out doors have settled and twisted, binding surface-mount latches. Standard replacement parts often don’t fit these narrow frames. We carry legacy hardware and adapt modern components where necessary.
- Mortise locksets wear out after decades of use. Franklin Square’s postwar colonials and Cape Cods still contain original or early-replacement mortise locks with worn hubs, stripped spindles, and cracked porcelain knobs. We rebuild these where possible and source period-appropriate replacements when the case itself has cracked.
Pricing for Lock Installation & Rekey in Franklin Square, NY
| Service | Typical Range in Franklin Square |
|---|---|
| Standard deadbolt rekey | $45 - $85 per cylinder |
| Deadbolt installation (customer-supplied hardware) | $120 - $180 |
| Deadbolt installation (with mid-grade hardware) | $180 - $280 |
| Smart lock installation | $220 - $420 |
| Biometric lock installation | $280 - $520 |
| Keypad/keyless entry installation | $180 - $340 |
| Mortise lock rebuild or replacement | $220 - $480 |
| 1950s garage rim lock repair/adaptation | $140 - $260 |
| Key duplication (standard) | $4 - $12 each |
| Key duplication (high-security) | $18 - $35 each |
What moves the needle within these ranges? Hardware grade is the biggest factor - a Grade 1 commercial deadbolt costs more than a residential Grade 2, and the labor to mortise it into a 60-year-old frame runs higher too. Frame condition matters: a door that needs strike relocation or jamb reinforcement adds $40-$90. And accessibility - a third-floor walk-up or a detached garage with no driveway access - can add a modest trip charge.
We quote flat prices on the phone before any work begins. The price you hear is the price on the invoice. No bait, no switch, no “service fees” that appear from nowhere. Franklin Square homeowners aged 55 and up receive our permanent 5% senior discount, and we honor the same for veterans. Call (877) 691-7931 for your exact quote - estimates are free, and we can often schedule same-day service.
We Also Serve Cities Near Franklin Square
Our Lock Installation & Rekey in Franklin Square coverage extends to Lakeview, West Hempstead, Elmont, and Malverne - all within our standard Nassau County response zone. The same flat-price quoting, same live-answer phone line, same written 90-Day Done Right Promise applies whether you’re off Hempstead Turnpike or out near the Southern State Parkway corridor.
Serving Franklin Square, NY - Our Local Coverage Area
We’re based in the Franklin Square area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Lock Installation & Rekey in Franklin Square
Coastal salt air corrodes the internal wafers and springs of exterior deadbolt cylinders, and Long Island’s humidity swells the wooden door frames on your postwar garage, binding the bolt path. The lock isn’t defective - it’s fighting your local climate. We replace corroded cylinders with brass or stainless internals and shim settled frames for proper alignment. Call (877) 691-7931 for an exact quote - estimates are free.
Yes, we rekey original mortise locksets in Franklin Square’s postwar housing stock regularly, provided the lock case and hub aren’t cracked. We carry the narrow key blanks and five-pin configurations common to early Baldwin, Sargent, and Yale mortise hardware from the Long Island building boom. If the case is damaged, we source period-appropriate replacements that fit your door’s existing mortise pocket without destructive modification. Call (877) 691-7931 for an exact quote - estimates are free.
Probably not. Freeze-thaw cycles cause Franklin Square’s older wooden door frames to swell and contract seasonally, shifting strike plate alignment by small but critical amounts. The bolt hits the strike lip or drags through the plate. We adjust or relocate the strike, shim the frame, and lubricate the bolt path - usually no new lock required. Call (877) 691-7931 for an exact quote - estimates are free.
Yes, and you should verify it. Franklin Square falls under Nassau County jurisdiction, not New York City, so your locksmith needs a Nassau County Department of Consumer Affairs locksmith license - entirely separate from NYC’s DCWP credential. We carry this county license and present it with our technician ID at every Franklin Square job. Any legitimate locksmith will show theirs without hesitation. Call (877) 691-7931 for an exact quote - estimates are free.
Usually, yes, though Franklin Square’s 1950s detached garages often need frame reinforcement first. Original rim locks and surface-mount latches on narrow swing-out doors don’t provide the structural support or backset that modern smart deadbolts require. We assess the door thickness, frame condition, and hinge integrity, then quote the full job including any needed adaptation. On a humid July morning, we rekeyed a rusted original rim lock on a detached one-car garage off Wyngate Drive. The 1950s swing-out door had settled, twisting the strike plate; we replaced the cylinder and shimmed the frame with stainless washers to realign the latch. The homeowner hadn’t been able to lock that garage in years. Call (877) 691-7931 for an exact quote - estimates are free.
Strongbox Lock & Safe Co. has served Franklin Square and surrounding Nassau County communities for over 42 years. We’re the company that plans to be here in thirty more. A square deal: the price we quote is the price you pay. We stand behind it - no paperwork, no arguing. Call (877) 691-7931 now for your free estimate on lock installation, rekeying, or any residential security upgrade. We’ll be there when we say.
Written by Frank Bellomo, Owner at Strongbox Lock & Safe Co., serving Franklin Square since 1982.