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 Emergency Locksmith Across Boston
An emergency lockout in Boston is rarely just about a lost key. It’s a frozen deadbolt on a January night in East Boston, a seized mortise cylinder in a Back Bay brownstone, or a landlord facing a triple-decker full of new tenants on September 1st. Novak Lock & Security answers with a live person, a firm written price quoted before anyone is dispatched, and a background-checked technician who arrives in a company vehicle with the parts already staged for Boston’s specific hardware. Call (331) 310-8471 and you’ll get a human being who can name the price on the spot.
Why Novak Lock & Security Is Boston’s Preferred Emergency Locksmith Company
Since 2002, Novak Lock & Security has worked under one rule that most of the locksmith trade won’t commit to: the price quoted on the phone is the price on the invoice. Haven Standard Clause 1. No call-out surcharge added at the door, no “minimum trip fee” that grows once the tech sees the lock. That rule matters more in Boston than almost anywhere, because the city’s housing stock is old, its hardware is often obsolete, and a technician who knows Beacon Hill mortise locks or Dorchester triple-decker master key systems can diagnose by description in a way a generic dispatch center cannot.
Our Boston customers consistently tell us the same thing: they called because the price was stated in writing before they hung up. The dispatcher names a range for the specific job, confirms it in writing, and the tech who arrives has no authority to change it. We also document every visit with a photo record left with you at completion. Not as an upgrade. As procedure. For locks on coastal properties in Charlestown or City Point, we’ll show you exactly what the salt air did to the cylinder before we replace it.
Led by Daniel Novak, our technicians are background-checked and uniformed. They carry parts for original Baldwin and Sargent mortise locks, entry-grade Kwikset and Schlage, and high-security Mul-T-Lock and Abloy cylinders. That breadth means one call handles a 1920s South End rowhouse or a 2018 Seaport condo without a second trip.
Our Emergency Locksmith Services in Boston

24/7 Emergency Lockout
A lockout in Boston is usually either a lost key or a lock that stopped accepting the key. The second case is more common here than in most U.S. cities. Salt-laden air near the harbor and road-salt spray from winter plowing work their way into exterior cylinders, corroding springs and pins until the key won’t fully insert. Our Emergency Locksmith team carries the non-destructive entry tools and replacement hardware to get you in and leave the lock working better than it was before the failure.

Broken Key Extraction
Keys snap for two reasons in Boston: worn original keys in old mortise locks, and frozen cylinders that finally seize while someone applied too much force on a February morning. We extract the broken piece without drilling the cylinder when that’s possible, then cut a fresh key to code and test the lock under load. On older hardware where the original keyway is compromised, we’ll quote a cylinder replacement in writing before any extraction work begins.

Safe Opening
Coastal air does not spare safes. We open locked safes in Boston homes, often in basements that ride at high humidity year-round, where the lock’s internal parts have corroded or the boltwork has stalled. Our safe technicians use manipulation and scope-based entry before drilling, preserving the safe when the lock can be salvaged. If we do need to drill, you’ll know the cost and the repair path before the drill touches the door.

Eviction Lock Change
Boston landlords dealing with court-ordered evictions or abandoned units need lock changes documented and done fast. We rekey or replace locks at triple-deckers in Dorchester, East Boston, and Jamaica Plain, and we provide the written record and photo documentation property managers need for court files and insurance. During the September 1st lease flip, we pre-stage rekey kits by building so turnovers happen in one visit.

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 Boston
We’re factory-authorized on Medeco, Mul-T-Lock, Abloy, Baldwin, and Schlage, which covers the range you’ll find across Boston’s housing stock. A Back Bay brownstone built in 1880 often still has an original Sargent or Baldwin mortise lockset that needs specialty parts and hand-filing, not a swap to a big-box deadbolt. A new-build in the Seaport might have Schlage electronic deadbolts tied to a building access system. We keep the common wear parts for both on our Boston trucks so a single visit handles the job. For coastal properties, we routinely replace corroded entry hardware with marine-grade stainless or full-brass construction that holds up to salt spray for years longer than plated steel.
Common Emergency Locksmith Problems We See in Boston Homes

- Seized mortise lock cylinders in prewar buildings. Beacon Hill, Back Bay, and the South End are dense with original mortise locksets from the 1840s to 1890s. Salt air and humidity corrode the internal pins and springs until the key won’t insert or turn. These locks require specialty tools and replacement parts, not a generic deadbolt swap.
- Swollen wooden door frames after freeze-thaw cycles. Triple-deckers in Dorchester, East Boston, and Somerville take on moisture each winter, and when the frame swells, the deadbolt no longer lines up with the strike plate. The lock isn’t broken; the geometry changed. We realign, re-shim, or replace the strike plate to fix it without replacing a perfectly good lock.
- Corroded deadbolt cylinders on coastal streets. Properties within a mile of Boston Harbor or on the Chelsea and Everett waterfronts see salt accumulation inside exterior cylinders. A deadbolt that works in August can seize by January. We swap in marine-grade stainless cylinders and ANSI Grade 1 strike plates designed for that exposure.
- DIY rekey attempts during the September 1st surge. Every August, landlords across Allston, Brighton, Mission Hill, and the Fenway try to rekey their own units to save money during the lease flip. Mis-pinned master key systems and jammed cylinders are the predictable result. We fix those systems and restore proper key hierarchy, usually in one visit.
We responded to a midnight lockout at a triple-decker on Perthshire Road in Dorchester, where a corroded Schlage deadbolt cylinder had seized after a week of road-salt spray. Our technician used non-destructive entry to bypass the seized pin and tumbler cylinder, then swapped in a marine-grade stainless deadbolt with an ANSI Grade 1 strike plate so the same failure wouldn’t strand the tenant again.
Pricing for Emergency Locksmith in Boston, MA
Boston pricing for emergency locksmith work is honest when someone tells you the range before anyone drives over. A standard lockout in Boston typically runs $95 to $165 during normal hours and $135 to $225 for after-midnight calls. Broken key extraction adds $35 to $75 when it requires cylinder disassembly. Rekeying a standard deadbolt runs $25 to $35 per cylinder; a full triple-decker rekey with a master key system typically runs $280 to $450 depending on the number of cylinders and whether the existing hardware can be reused. Safe opening starts at $180 for standard combination locks and rises with scope-based work on high-security units. The dispatcher quotes a firm written price before anyone is dispatched. That is the price on the invoice. No call-out fee added at the door, ever. Call (331) 310-8471 for a free estimate on any emergency or scheduled work.
We Also Serve Cities Near Boston

Novak Lock & Security serves Boston and the surrounding metro: Somerville, Cambridge, Chelsea, and Everett. If your property sits on the northern edge of the city or just across the Mystic River, the same 24/7 live-dispatch team and written pricing apply. Crews coordinate from our Boston office and stage parts locally for the full service area.
Serving Boston, MA - Our Local Coverage Area
We’re based in the Boston 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 - Emergency Locksmith in Boston

Response time in Allston and Brighton during the September 1st lease flip runs 45 to 90 minutes depending on call volume, because demand in that 48-hour window is the highest of the year anywhere in the U.S. That is why we pre-schedule rekey work and urge landlords to book rekeys before August 20. For lockouts we can’t reach quickly, we tell you a realistic arrival window on the phone, with the price. Call (331) 310-8471 and the dispatcher will give you both without any pressure.
Yes. We stock springs, pins, cylinders, trim plates, and replacement mortise bodies for original Sargent, Baldwin, and other prewar hardware common in Beacon Hill and Back Bay. Most generic locksmiths will drill an original mortise lock and replace it with a modern deadbolt, which changes the look of a historic entry. Our technicians are trained to restore original function, not just replace. When replacement is genuinely necessary, we’ll quote it in writing and show you what failed.
In Boston triple-deckers, it’s usually the door. Wooden frames in Dorchester, East Boston, and Jamaica Plain absorb moisture in the fall and swell when temperatures drop, pushing the strike plate out of alignment with the bolt. The deadbolt itself is often fine. We’ll check the alignment, shim or reposition the strike plate, and test the lock through full travel. If the cylinder or bolt is also worn, we’ll quote both repairs separately so you only pay for what’s actually wrong.
We rekey every cylinder to a new master key hierarchy, pin each unit lock to its own key, and test each key on every cylinder it should operate. Then we provide a written key chart, a photo record of the completed work, and a signed scope showing what was done. If a previous landlord’s DIY rekey left the pins mis-set, we identify the cylinders that are out of hierarchy and correct them. For September 1st turnovers, we stage this work in advance so the building is fully rekeyed before tenants arrive. Rekeying a triple-decker with a master system typically runs $280 to $450 in Boston.
Yes, in most cases. We use manipulation and scope-based entry first, which preserves the lock and avoids permanent damage to the safe. Drilling is a last resort and is quoted in writing before it starts. Salt air near Boston Harbor and the coastal neighborhoods of Charlestown and City Point accelerates corrosion inside safe locks, especially in basements with high humidity. The wheel packs and springs that work fine for decades inland can seize here in half that time. If the safe is important to you, schedule at least an annual combination change and a light internal service. Call (331) 310-8471 for a free estimate on any safe work.
If you’re locked out, standing on a porch on Peterborough Street or a sidewalk in East Boston at midnight, the last thing you need is an estimate. You need a human being who answers, tells you the price, and shows up. That’s the only way Daniel Novak has operated this company since 2002, and it’s the only way we operate across Boston. Call (331) 310-8471 now. A live person answers. You’ll get a written price. Then a uniformed tech arrives and gets you back inside.
Written by Daniel Novak, Owner at Novak Lock & Security, serving Boston, MA.






