Fast, Reliable Lock Installation & Rekey Across Cohasset
Lock installation and rekeying in Cohasset runs $89-$340 per door depending on hardware grade, with most jobs completed same-day. Our technicians carry marine-grade brass and stainless inventory on every truck because standard steel hardware won’t survive a single winter on this coastline.
We’ve been answering calls in the 02025 zip code for over 42 years, from the historic village core out to Jerusalem Road and the harborfront seasonal homes. Cohasset isn’t a town you learn from a map. You learn it by replacing deadbolts that fused solid after a nor’easter, by sourcing obsolete mortise lock parts for 1800s colonials on Pleasant Street, and by rekeying waterfront rentals every spring when summer owners return. We’re Strongbox Lock & Safe Co., and we’re the Lock Installation & Rekey team that plans to be picking up your call in thirty years. Reach us at (877) 664-8139, 24/7, and a live person answers. No voicemail trees.
Why Strongbox Lock & Safe Co. Is Cohasset’s Preferred Lock Installation & Rekey Company
Our reputation here was built one door at a time. Cohasset homeowners don’t call us once, they call us for decades, because the price we quote on the phone is the price on the invoice, and because our 90-Day Done Right Promise means if something isn’t right, we come back. No paperwork, no arguing.
Our response time to Cohasset averages under 45 minutes for emergency calls, and we schedule non-urgent work within 24-48 hours. We know which homes on Main Street still run original skeleton-key mortise hardware, and which waterfront estates need marine-grade deadbolts with weather shields. That knowledge saves you a second service call.
Every technician is background-checked, uniformed, and presents ID at your door. The person who opens your locks should be the most verifiable person you’ve ever hired. We don’t use subcontractors, we don’t bait-and-switch, and we don’t disappear after the invoice. We’ve been here 42 years. We plan to stay.
Our Lock Installation & Rekey Services in Cohasset
Smart Lock Installation
Smart locks make particular sense for Cohasset’s seasonal and rental properties along the harbor. You can issue temporary codes for caretakers, track entry remotely, and rekey digitally without a service call. We install and configure Schlage Encode, Yale Assure, and Kwikset Halo systems, and we harden them against the salt-air environment that destroys lesser electronics. Most Cohasset smart lock installations run $280-$520 including hardware and setup.
Keyless Entry Systems
For the Victorian and colonial homes in the village core, keyless entry doesn’t mean compromising character. We install keypad deadbolts and lever sets that fit existing bore holes without damaging original millwork. Popular for rental conversions on Pleasant Street and family compounds near Black Rock Beach. Keyless entry installation in Cohasset typically costs $220-$380.
Keypad Lock Installation
Keypad locks bridge old and new. No phone required, no batteries to fail unexpectedly, just a code that changes when tenants turn over. We recommend Medeco and Schlage commercial-grade keypads for Cohasset’s salt-air exposure, with sealed circuitry housings that outlast standard residential units by years. Installed price: $190-$340.
Biometric Lock Installation
Biometric fingerprint locks are increasingly requested for Cohasset’s larger waterfront estates, particularly where multiple staff or caretakers need access. We source Abloy and Mul-T-Lock biometric systems with outdoor-rated sensors that function through New England temperature swings. These are premium installations, typically $480-$780, and we always verify sensor reliability in cold, wet conditions before recommending placement.
Electronic Lock Service & Repair
Electronic locks fail differently in Cohasset. Salt corrosion attacks battery terminals, moisture seeps into circuit housings, and touchscreen membranes degrade faster than inland. We carry replacement components for major brands and can often repair rather than replace, saving the hardware investment. Electronic lock service calls in Cohasset run $89-$180.
Key Duplication
We cut keys on-site for all standard and high-security cylinders, including Medeco, Mul-T-Lock, and Abloy restricted keyways. For Cohasset’s historic homes, we also duplicate skeleton keys and source blanks for obsolete lock formats most shops no longer stock. Key duplication: $4-$18 depending on blank type.
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.
- 3
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 Cohasset
We stock and install Schlage, Medeco, Kwikset, Mul-T-Lock, Abloy, Baldwin, Yale, and Sargent. For Cohasset specifically, we keep solid-brass and marine-grade stainless inventory pre-loaded because standard zinc-alloy hardware from big-box stores corrodes to uselessness within one winter on the coast. Our trucks carry Schlage B60 solid-brass deadbolts with optional weather shields, Medeco Maxum high-security cylinders in brass housing, and Kwikset SmartKey cores that allow us to rekey on-site without disassembling the lock. That means one trip, one flat price, and hardware that lasts.
Common Lock Installation & Rekey Problems We See in Cohasset Homes
- Salt-corroded deadbolts on waterfront properties. Standard steel and chrome hardware along Jerusalem Road and the harbor area seizes or fails entirely within 12-24 months. We replace with solid-brass or marine-grade stainless components and recommend annual spring inspection.
- Original mortise locks in 18th-century village homes. The captive pin-tumblers in these systems often cannot be rekeyed with modern tools. We source obsolete parts or retrofit the lockbox while preserving the original faceplate and trim.
- DIY rekey failures on seasonal rentals. Homeowners mis-pin locks after winter caretaker turnover, leaving properties insecure. We rekey correctly, verify all keys function, and document the pinning for your records.
- Smart lock electronics damaged by salt air. Consumer-grade smart locks installed without environmental hardening fail prematurely. We specify outdoor-rated units with sealed housings for coastal exposure.
Pricing for Lock Installation & Rekey in Cohasset, MA
We quote flat prices on the phone before any truck rolls. No bait, no switch, no “plus parts” surprises.
| Service | Typical Range in Cohasset |
|---|---|
| Standard rekey (per cylinder) | $89-$140 |
| High-security rekey (Medeco, Mul-T-Lock) | $140-$220 |
| Deadbolt installation (standard grade) | $180-$280 |
| Deadbolt installation (marine-grade brass/stainless) | $260-$380 |
| Mortise lock retrofit (historic homes) | $320-$520 |
| Smart lock installation | $280-$520 |
| Keypad lock installation | $190-$340 |
| Biometric lock installation | $480-$780 |
| Emergency service call (nights/weekends/holidays) | $140-$180 |
What moves the needle: hardware grade (marine-grade adds 30-40% but pays for itself in longevity), door condition (solid wood vs. hollow-core, existing bore alignment), and whether we’re working with original historic hardware that needs preservation. Every estimate is free. Call (877) 664-8139 and we’ll give you a real number you can write down.
Standing offers for Cohasset customers: $50 off any repair over $250; free second opinion on any written estimate; $89 seasonal tune-up; permanent 5% discount for seniors and veterans.
We Also Serve Cities Near Cohasset
Our Lock Installation & Rekey in Cohasset service area extends to North Scituate, Scituate, Hingham, and Hull. Same flat pricing, same marine-grade inventory for coastal properties, same live-answer phone. If you’re on the South Shore between Boston Harbor and Cape Cod, we cover your zip.
Serving Cohasset, MA - Our Local Coverage Area
We’re based in the Cohasset 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 Cohasset
Rekeying itself isn’t harder, but the hardware we’re rekeying often needs replacement first. Salt corrosion fuses cylinders, pits keyways, and destroys springs and pins inside the lock. In Canton or Sharon, we might rekey a 10-year-old deadbolt. In Cohasset, especially along Jerusalem Road and the harbor, that same deadbolt is often too corroded internally to rekey reliably. We replace with solid-brass or marine-grade stainless, then rekey the new hardware to your existing key. Call (877) 664-8139 for a free assessment.
Sometimes, but often the captive pin-tumbler design in these locks cannot accept modern rekeying tools. We’ve serviced homes on Pleasant Street and Main Street where the original mechanism was simply too obsolete. When that’s the case, we retrofit a modern lockbox behind the original faceplate and trim, preserving the historic appearance while giving you functional, rekeyable security. Mortise retrofits run $320-$520. We evaluate on-site at no charge.
Solid-brass deadbolts with marine-grade weather shields, specifically the Schlage B60 series or Medeco Maxum in brass housing. Standard steel deadbolts fail in one to two seasons here. We also recommend smart locks with remote access for seasonal properties, so you can issue and revoke codes for caretakers without being present. Installation with environmental hardening runs $280-$520. Call for a quote tailored to your property.
Standard rekeying runs $89-$140 per cylinder. High-security cylinders like Medeco or Mul-T-Lock run $140-$220. If the lock is salt-corroded and needs replacement before rekeying, add the hardware cost, but we’ll tell you that on the phone before we dispatch. Estimates are free. Call (877) 664-8139 for an exact quote.
Yes, with the right hardware. Consumer-grade smart locks fail quickly in salt air. We specify outdoor-rated units with sealed circuitry, harden the installation against moisture intrusion, and configure remote management so you control access from anywhere. For seasonal rentals, smart locks eliminate the need to physically exchange keys every turnover. Expect $280-$520 installed with proper environmental protection. The convenience is real, but only if the lock survives the coast.
Ready to Secure Your Cohasset Home?
One call gets you a flat price, a background-checked technician who shows ID at your door, and work backed by our 90-Day Done Right Promise in writing. We’ve served this coastline for over 42 years. We’re not going anywhere. Call Strongbox Lock & Safe Co. at (877) 664-8139 for your free estimate today.
Written by Gil Navarro, Owner at Strongbox Lock & Safe Co., serving Cohasset and local communities for over 42 years.