Locksmith Services in Randolph, MA
Most locksmith calls in Randolph are answered within 20-25 minutes, and the majority of residential rekeying jobs are finished in under an hour. Strongbox Lock & Safe Co. has worked in Randolph since 2013 - long enough to know which apartment conversions off North Main Street still run original Kwikset hardware from the 1960s, and which Route 28 rental properties see seasonal lock failures every March. If you need a lock changed, a key extracted, or a deadbolt realigned after another freeze-thaw cycle, call us at (877) 664-8139. We quote a flat price before the truck rolls, and we back every job with our written 90-Day Done Right Promise.
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.
Why Randolph Homeowners Choose Strongbox Lock & Safe Co.
Randolph is not a town where you call a stranger off a $19 coupon and hope they show up honest. Too many of our customers have already lived that story - a vague quote on the phone, a different number on the invoice, and a technician who would not produce ID. We built Strongbox to be the opposite of that experience.
Our technicians are background-checked, uniformed, and trained to present company ID at your door on every visit. The price we quote on the phone is the price on the invoice - a square deal, no arithmetic surprises. Every job carries our 90-Day Done Right Promise: backed in writing, no paperwork to file, no arguing if something needs adjustment. We come back and make it right.
We are particularly familiar with the housing stock in the neighborhoods around Crawford Square and along the residential streets branching from South Main Street near the Holbrook line. These areas contain some of Randolph’s highest concentrations of converted two- and three-family homes, where we have rekeyed dozens of units after tenant turnover. Our average response time to the 02368 ZIP code is 20-25 minutes during business hours, and our phones are answered by a live person 24 hours a day - including nights, weekends, and holidays. No voicemail trees. No callback queues.
Locksmith Services We Offer in Randolph
Residential Locksmith in Randolph
We rekey, repair, and replace locks for single-family homes, condos, and the converted multi-family properties that dominate Randolph’s rental market. Whether you have just bought a cape cod near Crawford Square or need the locks changed on a three-family off Route 28, we carry the right hardware for your door. Learn more about our Residential Locksmith in Randolph.

Commercial Locksmith in Randolph
From retail storefronts on North Main Street to small offices and medical suites, we install master key systems, access control hardware, and high-security cylinders. We understand Randolph’s commercial permitting environment and work with property managers who need minimal disruption to tenant operations. Learn more about our Commercial Locksmith in Randolph.

Automotive Locksmith in Randolph
Car key replacement, transponder programming, and emergency lockout response for vehicles parked at home, at work, or stranded near the Route 28 corridor. We come to your location with the equipment to cut and program most domestic and import keys on-site. Learn more about our Automotive Locksmith in Randolph.

Lock Installation & Rekey
This is our most frequent call in Randolph - not emergency lockouts, but rekeying after a move, a tenant change, or a relationship transition. We install deadbolts where passage knobs offer no security, upgrade original 1950s hardware to modern Baldwin or Medeco standards, and align strikes thrown off by seasonal frame swelling. Learn more about our Lock Installation & Rekey in Randolph.

Emergency Locksmith
Locked out at midnight? Key broken off in a storm door? We answer live 24/7 and dispatch to Randolph with a flat price already quoted - no “service call” that balloons once we arrive. Our emergency response covers the full 02368 area with the same written guarantee as any scheduled appointment.

Neighborhoods We Serve in Randolph
We have rekeyed locks, realigned deadbolts, and replaced failed hardware across Randolph’s core residential areas. These are the neighborhoods we know best:
- Crawford Square area - dense post-war housing, frequent multi-family conversions
- North Main Street corridor - mixed residential and small commercial, older rental stock
- South Main Street near Holbrook line - split-levels and ranches, many with original hardware
- Route 28 corridor - high turnover rentals, interior unit separation often below code
Wherever you are in 02368, our typical response time is 20-25 minutes.
Why Randolph’s Climate & Housing Affect Locksmith Work
Randolph’s housing market has a personality you do not find in neighboring Canton or Stoughton, and it shapes the locksmith work we do here. The town is one of the most demographically diverse communities in Massachusetts, with decades of migration from Boston’s Mattapan and Dorchester neighborhoods driving unusually high ownership and tenancy churn. That churn happens inside a dense stock of converted two- and three-family homes - post-WWII cape cods, ranches, and split-levels from the 1950s through the 1970s, many informally divided as the population grew.
The result is that rekeying after unit changeovers is our dominant service call in Randolph, not emergency lockouts. Original knob-lock-only or early single-cylinder deadbolt hardware from the mid-century building boom still turns up regularly, especially in rental units, and rarely meets current security expectations. In the denser blocks off North and South Main Street and along Route 28, we frequently find interior doors between units secured with passage knobs - no deadbolt at all - because the conversion was never brought up to code on interior separation. We flag this on nearly every rekeying call in that part of town.
Then there is the weather. Eastern Massachusetts freeze-thaw cycles hit Randolph’s older wood door frames hard. The frames swell in autumn and contract in late winter, throwing deadbolts out of alignment with their strike plates. We see predictable seasonal spikes in October through November and again in March, particularly on the town’s less-maintained multi-family rentals where landlords have deferred frame maintenance. A deadbolt that worked fine in September binds by Thanksgiving. It is not the lock - it is the frame, and we diagnose it before we sell you hardware you do not need.
Pricing for Locksmith Services in Randolph
We quote flat prices on the phone before any work begins. The price you hear is the price on the invoice - no “trip charges” that materialize later, no parts markup revealed after disassembly.
| Service | Typical Range in Randolph |
|---|---|
| Residential rekey (per cylinder) | $19-$35 |
| Deadbolt installation (standard) | $85-$165 |
| High-security deadbolt (Medeco, Mul-T-Lock) | $220-$380 |
| Car key replacement / transponder | $95-$265 |
| Emergency lockout response (02368) | $75-$145 |
| Commercial master key system (per cylinder) | $45-$85 |
Our approved standing offers include: $50 off any repair over $250; free second opinion on any written estimate; $89 seasonal tune-up; and a permanent 5% discount for seniors and veterans. Call (877) 664-8139 for an exact quote - estimates are free.
Service Area - Cities Near Randolph
We also serve customers in Braintree, Holbrook, Canton, and Stoughton - each with the same flat-price quoting, same written guarantee, and same live-answer phones.
Serving Randolph, MA - Our Local Coverage Area
We’re based in the Randolph 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 About Locksmith Services in Randolph
Rekeying a typical Randolph home runs $75-$180 for a standard three-lock setup, depending on cylinder count and whether the existing hardware is serviceable. Many of the converted two-families off North Main Street have mixed hardware eras, which can add time if we need to match non-standard keyways. Call (877) 664-8139 for an exact quote - estimates are free.

Eastern Massachusetts freeze-thaw cycles cause wood door frames to swell in autumn and contract in late winter, throwing deadbolts out of alignment with strike plates. In Randolph’s 1950s-1970s housing stock, this is predictable - we see the spike every October-November and again in March. Often the fix is strike-plate adjustment, not a new lock. We diagnose the actual problem before recommending hardware.

For original mid-century hardware still found in Randolph’s older rentals, replacement is usually the better value. Knob-lock-only entry sets offer minimal security and cannot be upgraded to accept modern deadbolts without door modification. We stock Baldwin, Yale, and Kwikset grade-2 and grade-3 hardware and will quote both options flat on the phone so you can decide.

We can install a deadbolt on any door that lacks one, and we frequently do this in Randolph’s converted two- and three-families where interior unit separation was never brought to code. The passage knobs common in these conversions offer no security between units. We will assess the door and frame condition and quote a flat price for proper deadbolt installation.

Yes. Most non-emergency rekeying and lock installation requests in the 02368 area are scheduled same day or next day, and emergency lockouts are answered within 20-25 minutes. A live person answers every call, 24/7. Call (877) 664-8139 to book - we will give you a flat price and a real arrival window.
Written by the team at Strongbox Lock & Safe Co., serving Randolph since 2013.

What happens when you call
- 1A real person answersNo phone trees - talk to a local locksmith pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within within the hour.
- 4You approve before work beginsNothing starts until you say go.
What Los Angeles Customers Say
"Showed up fast, fixed it right the first time, and the price matched the quote. Couldn't ask for more."
- Verified local homeowner"Professional from the first call. Explained everything clearly and left the area spotless."
- Verified local homeowner"Called in the morning, problem solved by afternoon. Honest, upfront pricing - highly recommend."
- Verified local homeowner