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 Cambridge
An emergency locksmith in Cambridge, MA typically costs between $95 and $250 for a standard lockout, with rekeying running $20 to $35 per cylinder and full mortise-lock rebuilds on older triple-deckers landing between $180 and $400 depending on hardware condition. Most calls in Cambridge are answered within 20 to 35 minutes, though the last week of August is a different animal entirely. Our Emergency Locksmith team knows the difference between a Harvard Square apartment lockout and a frozen deadbolt on a north-facing triple-decker in Porter Square in February. If you’re locked out right now, call (331) 310-8471 and a live person answers. No queue. No callback window.
Why Novak Lock & Security Is Cambridge’s Preferred Emergency Locksmith Company
Daniel Novak started this company in 2002 on a single rule: the price quoted on the phone is the price on the invoice. Haven Standard Clause 1. It’s not a slogan; it’s the operating constraint every technician works under. In Cambridge, where the September 1 lease flip turns a normal workday into triage, that rule matters more than anywhere else. A landlord rekeying four units on Inman Street doesn’t have time to renegotiate a price at the door.
Our technicians are background-checked and uniformed. Every visit ends with a documented photo record, left with the customer, showing the condition of the hardware before and after the work. For Cambridge residents who read the three-star reviews before calling anyone, that record is the difference between a claim and a receipt. We stock pin kits and cylinders for Sargent, Yale, Schlage, and Mul-T-Lock, because a pre-war mortise lock on a Cambridgeport three-decker doesn’t take the same hardware as a 2018 condo deadbolt in Kendall Square.
Emergency response to Cambridge is dispatched from our Boston metro office, with crews stationed to cover the city’s neighborhoods directly. In the August crunch, we run four techs non-stop through Cambridgeport and Riverside. The rest of the year, one call gets a real answer and a firm price before a truck moves.
Our Emergency Locksmith Services in Cambridge
24/7 Emergency Lockout
Locked out of a third-floor walkup near Central Square at 2 a.m.? We get there. A typical residential lockout in Cambridge runs $95 to $180 during normal hours and $150 to $250 for late-night or holiday calls. The price is set on the phone, before dispatch, and it does not change when the technician arrives. That’s Clause 1, and it applies to every call, including a January lockout when your deadbolt has frozen solid on a north-facing entry that never sees direct sun.
Broken Key Extraction
Older Cambridge housing stock means older locks, and older locks mean worn keyways. Keys snap off in mortise cylinders on pre-war entry doors more often than homeowners expect. Extraction runs $75 to $150 depending on how deep the break is and whether the cylinder needs to come out. If the lock itself is salvageable, we’ll tell you. If it’s not, we’ll show you the broken part and quote a replacement before doing anything.
Safe Opening
We open residential safes and lockboxes across Cambridge. Rates start at $150 for basic lockout or override work and run higher for manipulation or drilling on rated safes. If you have a safe in a basement unit near Harvard Square that hasn’t been opened in a decade and the combination is long gone, we’ll assess the make and model before touching it, and you get a written scope with a flat price. No surprises when the drill comes out.
Eviction Lock Change
Massachusetts law requires landlords to provide secure locks to new tenants, and eviction lock changes in Cambridge often involve the original mortise locksets that have been on the door since the building went up in 1920. We rekey or replace as needed and document the entire job. A single-door eviction lock change runs $120 to $200 for rekeying, or $250 to $450 if the mortise body is too far gone and needs replacement. Written scope first. Photo record when we’re done.
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 Cambridge
We work on the full spectrum: entry-grade Schlage and Kwikset, commercial Sargent hardware, and high-security cylinders from Mul-T-Lock, Abloy, and Baldwin. For Cambridge landlords who need one key across a multi-unit building, we key everything alike using the same pinning system across all hardware, including gate locks and storage-room deadbolts. We keep parts on the truck for the brands common in Cambridge’s pre-war stock and modern condos alike, so a standard rekey doesn’t require a return trip to the shop.
Common Emergency Locksmith Problems We See in Cambridge Homes
- Frozen deadbolts from January through March. Cambridge winters cross the freeze-thaw line repeatedly, and exterior locks on older, poorly-weatherstripped entries ice up and seize. A north-facing triple-decker door that never gets direct sun is the most predictable lockout call we take all winter.
- Mortise locksets that haven’t been serviced in decades. The majority of Cambridge’s residential stock predates 1940, and the original skeleton-key mortise hardware is often still in the door. Modern deadbolt swaps don’t fit these preps, and forcing one binds the bolt against a racked frame and locks a tenant out on move-in day.
- Racked door frames on century-old buildings. After 90-plus years of settling, many Cambridge door frames are no longer square. A new deadbolt that works on the bench won’t throw cleanly in the door, and the fix is a strike plate adjustment, not a new lock.
- Landlord emergency calls during the September 1 lease flip. Thousands of units across Cambridge turn over within 48 hours, and the ones that weren’t rebooked weeks in advance become same-day emergencies. Landlords calling during that window need a tech who can do a four-unit Inman Square building in one visit, not someone who arrives with the wrong pin kit and leaves two units unsecured.
Pricing for Emergency Locksmith in Cambridge, MA
We publish our ranges because the trade’s reputation problem comes from bait pricing. Here’s what you should expect in Cambridge: lockout service runs $95 to $250 depending on time of day; broken key extraction $75 to $150; rekeying $20 to $35 per cylinder; mortise lock rebuild or replacement $180 to $400; eviction lock change $120 to $450 depending on hardware condition; safe opening from $150. The full price is quoted on the phone before anyone is dispatched, and that is the price on the invoice. There is no call-out surcharge added on arrival. If you have a competitor’s written estimate, bring it to us and we’ll review it at no charge.
Key Takeaways:
- Firm phone quote before dispatch, and that quote is the final price. Clause 1.
- Response to Cambridge typically runs 20 to 35 minutes, except during the August 31 rush when demand spikes citywide.
- We service pre-war mortise locks, not just modern cylinders. That matters on most Cambridge side streets.
- Every job ends with a written record and photo documentation, left with you.
- 365-Day Done Right Promise: if it’s not done right, we make it right.
We Also Serve Cities Near Cambridge
Our emergency coverage extends through the surrounding metro. If you’re across the line in Somerville, Watertown, Medford, or further into Cambridge proper, we can reach you with the same written-price guarantee and documented work record. The dispatcher confirms response time when you call.
Serving Cambridge, MA - Our Local Coverage Area
We’re based in the Cambridge 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 Cambridge
Cambridge’s massive student population at Harvard and MIT combined with the near-universal September 1 lease-turnover date creates one of the most extreme single-day rekeying demand spikes in the country. Thousands of rental units flip within a 24 to 48 hour window, and Massachusetts law obligates landlords to provide new tenants secure locks. Every August we block off the final week for emergency calls only, because a tech stuck rekeying a four-unit building on Inman Street can miss a dozen jobs two blocks away. Call (331) 310-8471 well before August 25 if you’re a landlord in Cambridge.
Yes, in most cases. We carry pin kits for the mortise cylinders common in pre-war Cambridge housing, including Yale, Sargent, and older Schlage. If the lock body is still functional, rekeying runs $20 to $35 per cylinder. If the frame has racked or the bolt binds, we’ll adjust the strike or shim the mortise body before recommending replacement. The written quote covers both paths before we start.
Call us rather than forcing the key. A frozen keyway on one of Cambridge’s older, poorly weatherstripped entries is usually ice in the cylinder, and snapping a key off inside makes the job twice as expensive. We carry a non-destructive de-icing procedure and graphite-based lubricant. If the cylinder is already damaged from repeated freezing, replacement runs $180 to $400 depending on hardware grade. For an exact quote and immediate dispatch, call (331) 310-8471.
During the last week of August, response time in Cambridge runs longer than the typical 20 to 35 minutes because demand is citywide and simultaneous. We staff extra techs that week specifically for the lease flip, but a lockout near Harvard Square on August 31 will take priority over a non-emergency rekey. If you can, pre-book rekeying before August 20. If you’re locked out right now, call and we’ll give you a real arrival window, not a vague “soon.”
Yes. We key all cylinders to a single master system, including entry doors, unit doors, basement locks, storage rooms, and exterior gates. For Cambridge’s three-decker stock with mixed hardware generations on the same door prep, this means carrying multiple pin kits and master keying on site. One visit, one written price, one photo record covering every lock we touched. That’s the only way to handle August in Cambridge.
Locked out, locked in, or facing a building full of locks that need rekeying before the lease flip? Call (331) 310-8471 now. A live person answers, gives you a firm price in writing, and dispatches a background-checked, uniformed technician to your Cambridge address. The price on the phone is the price on the invoice. Every time.
Written by Daniel Novak, Owner at Novak Lock & Security, serving Cambridge since 2002.