Fast, Reliable Lock Installation & Rekey Across Old Greenwich
Lock installation and rekeying in Old Greenwich typically runs $150-$450 depending on hardware grade and door prep complexity, with same-day service available throughout the 06870 ZIP code. Our Lock Installation & Rekey team covers Sound Beach Avenue, Shore Road, and the full Tod’s Point area with trucks stocked for the specific failures this coastline produces. Call (877) 664-8139 and we’ll quote a flat price before we roll - the same price you’ll see on the invoice.
We’ve been opening, rekeying, and replacing locks in Old Greenwich for decades. The salt air off Long Island Sound is not abstract to us; it’s the reason we carry marine-grade Schlage and Medeco hardware on every truck, and why our technicians know which cottages on Binney Lane have the original 1920s mortise sets that need custom machining. We’re not learning your neighborhood. We already know it.
Why Strongbox Lock & Safe Co. Is Old Greenwich’s Preferred Lock Installation & Rekey Company
Gil Navarro built this company on the idea that a locksmith should be the most verifiable person you ever hire. For over 42 years, that has meant background-checked, uniformed technicians who present ID at the door, quote a real flat price on the phone, and back every job with the 90-Day Done Right Promise in writing. No paperwork to file. No arguing. If it’s not right, we come back.
Old Greenwich homeowners call us because they’ve met the other kind of locksmith - the $19-ad operator who shows up in an unmarked car and invents charges on the spot. We are the direct alternative. A live person answers our phones 24/7, including nights, weekends, and holidays. No voicemail trees. No callback queues.
Our response time to Old Greenwich averages under 45 minutes for emergency calls, and we schedule non-urgent work within 24-48 hours. We know the parking constraints near Tod’s Point, the tight setbacks on Sound Beach Avenue, and which properties are seasonal second homes that need special coordination. That local fluency saves you time and prevents the wrong hardware from going on your door.
We also honor a permanent 5% discount for seniors and veterans, and our $89 Seasonal Tune-Up is specifically popular in Old Greenwich before Memorial Day weekend - the annual moment when owners return to find locks corroded shut from six months of salt air.
Our Lock Installation & Rekey Services in Old Greenwich
Smart Lock Installation
Smart locks in Old Greenwich need to survive what standard smart locks cannot. The WiFi-enabled deadbolt that works fine in Stamford often fails within two winters here, because the motor housing and battery compartment aren’t sealed against salt humidity. We install Schlage Encode Plus and Yale Assure Lock SL units with marine-rated gaskets and stainless strike plates, and we position the interior assembly away from direct spray on south-facing doors. For seasonal properties near Tod’s Point, we configure remote access codes that let you grant entry to caretakers or delivery services from anywhere, so you’re not driving up from the city to let someone in.

Electronic Lock & Keypad Lock Installation
Keypad locks eliminate the key entirely - a genuine advantage when your keyway has corroded shut for the third time. We install Kwikset SmartCode and Schlage Touch keypad deadbolts with all-metal housings, not the zinc die-cast bodies that crack in freeze-thaw cycles. For Old Greenwich’s older cottages with non-standard door preps, we machine adapter plates that let a modern electronic lock seat cleanly without damaging original woodwork. The keypad goes in, the mortise hole gets covered with a custom faceplate, and the door looks intentional, not patched.

Biometric Lock Installation
Fingerprint entry appeals to Old Greenwich homeowners who want speed without carrying keys on beach walks or morning runs. We install and service biometric locks from manufacturers including Schlage and Baldwin, with particular attention to sensor housing seals - salt residue on a fingerprint reader causes false rejections and premature wear. We also counsel clients honestly: biometric locks are excellent for primary residents, but for seasonal rentals or frequent guest access, a keypad or smart lock with remote code management usually serves better. We’ll recommend what fits your actual use, not what costs most.

Key Duplication & Rekeying
Rekeying changes the internal pin configuration so old keys no longer work - faster and less expensive than full lock replacement, and the right choice after a move, a lost key, or a staffing change at a seasonal property. In Old Greenwich, we also rekey to match existing keys across multiple doors, so your Sound Beach Avenue cottage and your garage entry use the same key. We cut duplicates on-site from Medeco, Schlage, Kwikset, and Abloy blanks, including the restricted-keyway profiles that require locksmith credentials to duplicate.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Old Greenwich
We stock and install Abloy, Schlage, Kwikset, and Medeco hardware from our local inventory, which means most Old Greenwich jobs need no ordering delay. Abloy’s rotating disc cylinders resist salt corrosion better than traditional pin-tumbler designs - we specify them for direct waterfront properties. Schlage’s commercial-grade B660P deadbolt with stainless steel faceplate has become our default for south-facing doors in the Tod’s Point area. We don’t sell what we wouldn’t put on our own doors, and we don’t install hardware that won’t survive your specific exposure.
Common Lock Installation & Rekey Problems We See in Old Greenwich Homes
- Salt-corroded keyways on south-facing doors. The Long Island Sound micro-climate pushes salt humidity against exposed brass cylinders year-round. Lubrication helps temporarily, but within 3-5 years the internal pins and springs degrade enough that smooth operation fails. We replace with marine-grade stainless or Abloy disc-cylinder locks that don’t use brass internals.
- Seized mortise locks in 1920s-1940s cottages. Original mortise hardware on Sound Beach Avenue and Shore Road properties often has non-standard faceplate dimensions and backsets that don’t match modern deadbolt specs. We machine custom faceplates and strike mortises so new hardware seats cleanly without enlarging the door cavity or visible damage.
- Cracked cylinder housings after winter freeze-thaw. West-facing doors catch afternoon spray that pools in lock bodies, then freeze overnight. Zinc die-cast housings crack; brass cylinders bind. We see this every February and March, and we prevent it with properly sealed, grade 2 or grade 3 hardware rated for exterior exposure.
- Memorial Day weekend lockout surges. Seasonal owners return to Tod’s Point cottages to find deadbolts that haven’t turned since October. We keep penetrating oil and heat guns standard on every truck, but we also advise pre-season tune-ups in April - our $89 Seasonal Tune-Up catches corrosion before it seizes completely.
Pricing for Lock Installation & Rekey in Old Greenwich, CT
We quote flat prices on the phone before any truck rolls. No bait, no switch, no “service fees” that appear on the invoice.
| Service | Typical Range in Old Greenwich |
|---|---|
| Standard rekey (single cylinder deadbolt) | $35-$65 per lock |
| Rekey with new keys (2 duplicates included) | $55-$85 per lock |
| Grade 2 deadbolt installation (standard door prep) | $150-$250 |
| Smart lock installation (standard prep, WiFi configured) | $280-$450 |
| Keypad/electronic lock installation | $220-$380 |
| Custom machining for non-standard mortise prep | $75-$150 additional |
| Marine-grade hardware upgrade (stainless strike, sealed housing) | $40-$80 additional |
| Emergency lockout response (Old Greenwich) | $89-$145 |
What moves the price: door prep complexity (original mortise hardware adds machining time), hardware grade (marine stainless costs more than standard brass), and access conditions (tight alleys or unshoveled walks add labor). We discuss all of this when you call. Estimates are free. Call (877) 664-8139 for your exact quote.
Approved offers for Old Greenwich customers: $50 off any repair over $250; free second opinion on any written estimate from another locksmith; permanent 5% discount for seniors and veterans.
We Also Serve Cities Near Old Greenwich
Our Lock Installation & Rekey in Old Greenwich coverage extends to Riverside, Cos Cob, Stamford, and central Greenwich. The same flat-price model, same marine-grade hardware knowledge, same 90-Day Done Right Promise applies in every town. If you’re on the border of 06870 and 06878, call us - we’ll confirm your service area and dispatch the nearest truck.
Serving Old Greenwich, CT - Our Local Coverage Area
We’re based in the Old Greenwich 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 Old Greenwich
The salt air off Long Island Sound deposits microscopic chloride crystals inside your lock cylinder that standard lubricants cannot dissolve or prevent. Graphite lubricants actually attract salt particles over time, making binding worse. We replace the internal brass components with marine-grade hardware and sealed housings designed for coastal exposure - lubrication alone is a losing battle here. Call (877) 664-8139 and we’ll assess whether rekeying with corrosion-resistant pins or full hardware replacement is the better investment.
Yes - we machine custom faceplates and adapter strikes that let modern deadbolts seat into original mortise preps without enlarging cavities or visible scarring. Just last May, we rekeyed a Sound Beach Avenue cottage where the front door mortise lock had seized solid from salt corrosion - the brass cylinder wouldn’t rotate at all. We machined a new custom faceplate to fit a modern Schlage deadbolt into the non-standard prep, and installed a marine-grade stainless strike to resist future rust. The door looked original; the security was current. Call for a free estimate and we’ll measure your specific prep.
Yes - we install smart locks with remote access management that let you generate temporary codes for caretakers, cleaners, or guests from anywhere, and receive notifications when the lock is used. For seasonal properties, we specifically recommend models with sealed battery compartments and stainless steel housings that survive months of salt humidity without use. We also configure low-battery alerts sent to your phone, so you’re not discovering a dead lock on arrival. Call (877) 664-8139 to discuss which smart lock fits your rental or second-home schedule.
Not necessarily - often the cylinder can be freed with controlled heat application and penetrating oil, then rekeyed with corrosion-resistant pins. If the internal springs have snapped from freeze-thaw stress or the housing has cracked, replacement is required. We carry the heat guns and extraction tools on every truck, and we’ll tell you honestly whether salvage or replacement makes sense. Same-day service is available throughout Old Greenwich. Call (877) 664-8139.
Yes - we stock Schlage B660P deadbolts with stainless faceplates, Abloy disc-cylinder locks with no brass internals, and marine-grade strikes and latch guards. For direct waterfront properties on Shore Road or Binney Lane, we typically specify stainless or marine hardware as standard, not as an upsell. The salt air here degrades standard zinc and brass components within 3-5 years; the right hardware from the start costs less than two replacements. Call for a free assessment of your current hardware grade.
Written by Gil Navarro, Owner at Strongbox Lock & Safe Co., serving Old Greenwich and local communities for over 42 years.