Non-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Fast, Reliable Lock Installation & Rekey Across Randolph
Lock installation and rekeying in Randolph, MA typically costs $95-$185 for a standard rekey and $180-$420 for new deadbolt installation, and we can usually dispatch a technician to most Randolph neighborhoods within 45-60 minutes. We know the housing here: converted postwar ranches off Route 28, split-levels near Powers Farm, and three-family conversions where one lock is never the whole story. Call (331) 310-8471 and we’ll walk through what you’re dealing with, name the price in writing, and get a background-checked, uniformed technician to your door.
If you manage a rental in the high-turnover corridors around Crawford Square or North Randolph, you already know the pattern. A tenant leaves, the old key is still floating around in someone’s pocket, and you need every lock rekeyed before the new tenant moves in on Saturday. We handle that. And if your side door deadbolt hasn’t turned cleanly since the last freeze-thaw cycle, we’ll tell you whether you need new hardware or just a strike plate realigned. No drilling a freeholder’s door unless it’s truly the only option, and you’ll know that in writing before we touch anything.
- Typical rekey cost in Randolph: $95-$185 depending on cylinder count
- Deadbolt or smart lock installation: $180-$420 including hardware if supplied
- Response to most Randolph ZIP codes (02368): 45-60 minutes
- Live answer, 24/7: No voicemail queue. A person picks up.
Why Novak Lock & Security Is Randolph’s Preferred Lock Installation & Rekey Company
Daniel Novak founded Novak Lock & Security in 2002 with one rule that still governs every job we do in Randolph. Haven Standard Clause 1: the price on the phone is the price on the invoice. The technician who shows up is contractually prohibited from changing it at the door. That’s not a marketing line. It’s the operating rule. And in a trade where bait-pricing at the curb is the single most reported consumer complaint, that rule is the entire reason we exist.
Our technicians work to The Haven Standard, the documented quality framework applied across all ten Haven brands. Every visit to a Randolph home ends with a photo record left with the customer. Not as an upgrade. As procedure. You’ll see what we saw, what we did, and what it cost. That record covers every lock install, every rekey, and every emergency call from a condo off North Main Street to a split-level near the Braintree line.
Since 2002, we’ve installed or serviced more than 60,000 locks, keys, and systems. We stock Medeco, Mul-T-Lock, Baldwin, and Schlage hardware that fits the aging knob-lock and early deadbolt setups common in Randolph’s 1950s and 1960s ranches. We know the spring swelling problem on this town’s shallow-foundation homes because we see it every March. We know how to rekey original pin-and-tumbler cylinders without condemning them unless they’re genuinely corroded.
We also know Randolph is not Canton or Stoughton. The rental turnover rate here, driven by one of the most ethnically diverse populations in Massachusetts, means locksmiths in this town do more multi-unit rekeying and landlord account work than almost anywhere else along the South Shore corridors. We’re set up for standing accounts with property managers. We answer the phone when you call at 7:15 on a Friday night because a tenant just moved out and the new one is arriving tomorrow.
Our Lock Installation & Rekey Services in Randolph

When you search Lock Installation & Rekey for Randolph, most companies give you a generic list of services. Here’s what actually applies to this town’s housing stock and how we handle it.
Smart Lock Installation
A smart lock on a 1960s Randolph split-level is a different job than one on a new build in Milton. The door prep is often non-standard, the frame may have shifted, and the existing deadbolt might be a worn Schlage original. We install smart locks from Schlage, Yale, and other major brands, and we’ll tell you up front if your current door prep will accept the lock cleanly or if you need adapter work. Smart lock installation in Randolph runs $220-$420 including the full written quote before we start.

Keyless Entry
For landlords running three-family conversions near Crawford Square, keyless entry solves the copy-key problem directly. You issue codes, not keys. We install keypad and keyless systems on multi-unit entry doors, and we can set up a master code structure that gives you building-level access while tenants only get their unit. Keyless entry installs in Randolph typically run $240-$460 depending on the hardware and number of access points.

Keypad Lock
Keypad locks on Randolph’s thin 1950s doors need one thing most installers skip: proper strike plate anchoring. A cheap install that only uses the short screws that come in the box will tear out the first time the frame swells in March. We use reinforced strike plates and longer screws as standard on any keypad lock going into an older Randolph door. Keypad lock installation runs $200-$380.

Biometric Lock
Biometric locks make sense for specific use cases in Randolph: a med office off Route 139, a home daycare with staff turnover, or a landlord who wants audit trails on access. They’re not right for every door, and we’ll tell you if the cost outweighs the benefit for a residential porch door. Biometric installation in Randolph starts around $340 and goes up based on cylinder grade and networking requirements. We quote it in writing before anyone touches the door.

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 Randolph
We’re factory-authorized for Medeco, Mul-T-Lock, Abloy, Baldwin, and Schlage, which means we stock the cylinders and parts that fit the hardware already on most Lock Installation & Rekey in Randolph homes. If your split-level still has original Schlage F-series knobs from 1972, we have rekey kits that match them. If you’re upgrading to a high-security Medeco or Mul-T-Lock cylinder that can’t be picked or bumped by standard tools, we’ll price the full spectrum in writing before you commit. Baldwin hardware on a front door off Highland Avenue deserves a tech who knows the brand, not someone learning on your lock.
Common Lock Installation & Rekey Problems We See in Randolph Homes

- Corroded cylinders on original 1960s-1970s hardware. Years of eastern Massachusetts freeze-thaw cycles push moisture into unsealed lock bodies. What looks like a key problem is often a cylinder that’s internally corroded. We can usually rekey it, but sometimes a replacement cylinder is the honest call.
- Mis-keyed multi-tenant locks after a conversion. When a single-family ranch becomes a three-family, the locks rarely get rekeyed properly. One key often works two units. We restore key control so each tenant only has their own access, and we can cut it to a master key for the owner.
- Deadbolts that bind after the frame swells. Randolph’s slab and shallow-foundation ranches shift seasonally. Every late winter, we get calls from homeowners who swear the lock broke in October and now it won’t turn. Usually the lock is fine. The strike plate needs realignment and deeper anchoring.
- Key copies floating around after a tenant leaves. This is the big one in Randolph’s high-turnover rental market. A former tenant filed down a copy to work in a corroded lock, and now it’s jamming the new tenant’s key. Rekeying to new pins and a new key profile ends the problem permanently.
Pricing for Lock Installation & Rekey in Randolph, MA
Here are honest numbers for this market. A standard rekey of a single cylinder in Randolph runs $95-$185. Most homes have two to three exterior locks, so a full exterior rekey lands between $190 and $330. New deadbolt installation starts at $180 and goes to $420 with hardware. Key duplication is $4-$12 per key for standard profiles, more for restricted or high-security blanks like Medeco or Mul-T-Lock. The price we quote on the phone is the price on the invoice. There is no call-out fee added when the technician arrives, no “door assessment” surcharge, no “it’s more complex than we thought” adjustment after the fact. That’s Haven Standard Clause 1, and it’s been non-negotiable since 2002. If you have a written estimate from another company, we’ll review it at no charge. Call (331) 310-8471 and we’ll give you the full price before anyone is dispatched.
| Service | Randolph Price Range |
|---|---|
| Single-cylinder rekey | $95-$185 |
| Full exterior rekey (2-3 locks) | $190-$330 |
| Deadbolt installation | $180-$420 |
| Smart lock installation | $220-$420 |
| Keyless entry installation | $240-$460 |
| Keypad lock installation | $200-$380 |
| Biometric lock installation | $340+ |
| Standard key duplication | $4-$12 per key |
Randolph’s Rental Turnover Makes Rekeying Different Here

Here’s what you won’t find on a generic locksmith page. Randolph has one of Massachusetts’ highest rates of landlord turnover in converted postwar ranch conversions, so a rekey here is rarely a one-lock job. It usually means resetting multiple interior and exterior locks on the same trip to restore key control for a new tenant. The property that was a single-family ranch in 1963 is now a three-family with a side entrance, a back door, and three unit doors. If you only rekey the front door, you’ve fixed one-sixth of the problem.
On a split-level off Route 139, our tech rekeyed three original 1970s Schlage pin-and-tumbler entry locks for a landlord after a tenant departure. The old deadbolt on the side door had a corroded lock cylinder from years of freeze-thaw cycles, so we replaced it with a bump-resistant Schlage ANSI Grade 1 deadbolt before resetting all locks to a single master key system. No drilling. No frame damage to the freeholder’s door. One visit, one written price, one documented photo record left with the owner.
Landlords who manage high-turnover rentals along the Route 28 and Route 139 corridors quickly learn that same-day rekeying after tenant departures is not a luxury. It’s the baseline. Those who build standing accounts with local property managers, including the town’s active Haitian and Vietnamese landlord networks, rarely lack for steady work. We’re set up for that kind of relationship. You call, we dispatch, you get a written record, and the next tenant starts with clean key control.
We Also Serve Cities Near Randolph
Novak Lock & Security serves Randolph and the neighboring South Shore communities of Braintree, Weymouth, Quincy, and Brockton. Dispatch and scheduling are coordinated from our Boston metro office, with crews serving Randolph locally. If you own property in more than one of these towns, one phone call covers the whole map. Call (331) 310-8471.
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 - Lock Installation & Rekey in Randolph
We can usually have a technician at a Randolph property within 45-60 minutes, and a three-unit rekey on a converted ranch typically takes 2-3 hours on site. That includes resetting all exterior and interior unit locks to new pins and cutting new keys for each tenant plus the owner. Call (331) 310-8471 and we’ll confirm the exact window and price before dispatch.
In most cases, yes, we can rekey the original pin-and-tumbler cylinders. The limitation is internal corrosion. If the cylinder is corroded from decades of freeze-thaw cycles, rekeying it may not hold pins reliably, and we’ll recommend a replacement cylinder instead. We’ll tell you which one applies after we look at the lock, and the written price will cover either path before we start.
Yes. A master key system can be built into existing cylinders during a rekey, with no drilling required in most cases. Each tenant gets a key that only opens their unit, and you get a master key that opens everything. That’s the standard approach for Randolph’s three-family conversions, and it’s sized and priced in writing before we start. Call (331) 310-8471 for a firm number.
It’s usually a frame problem, not a lock problem. Randolph’s older slab and shallow-foundation buildings shift through freeze-thaw cycles, and the strike plate can drift far enough that the deadbolt throw binds. We realign the strike plate, anchor it with longer screws into the stud, and in most cases the lock works cleanly again. If the cylinder is also corroded, we’ll tell you and price the fix.
Rekey every cylinder that tenant’s key could have opened, including any interior unit locks that share the same keyway. If you suspect the copy was filed down to work in a corroded lock, that cylinder should also be inspected and likely replaced. For landlords who want to stop the copy-key cycle permanently, a keyless entry system with unique tenant codes is the strongest fix. We’ll price both options on the phone.
Contact Novak Lock & Security in Randolph

If you need lock installation, rekeying, or key duplication in Randolph, call (331) 310-8471. You’ll speak to a live person, get a firm written price before anyone is dispatched, and that price is the price on the invoice. Our 365-Day Done Right Promise applies to every job we do, from a single deadbolt replacement to a full multi-unit master key system. If it’s not done right, we make it right. No fine print. No bait pricing. Just a real locksmith company that’s been doing this since 2002.
Written by Daniel Novak, Owner at Novak Lock & Security, serving Randolph since 2002.






