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.
Locksmith in Somerville, MA
Residential locksmith work in Somerville means working on triple-deckers built between 1885 and 1930, where original mortise locksets sit inside wood door frames that have swollen, shifted, and been painted for a century. Most calls we run here aren’t single-door jobs - they’re three-cylinder jobs, because a shared vestibule entry plus three unit doors means landlords rekey entire buildings at once. If you need a firm price for lock work in Somerville, call (331) 310-8471 and the dispatcher will quote it in writing before anyone is dispatched. That’s Haven Standard Clause 1: the price on the phone is the price on the invoice.
Why Somerville Homes Are Different
Somerville’s housing stock is defined by densely packed triple-deckers - three-family, early-1900s wood-frame buildings with a shared vestibule entry plus three individual unit doors - occupied almost entirely by renters with extremely high turnover tied to September 1st, the Boston metro’s notorious mass move-in day. This creates a recurring, Somerville-specific locksmith workflow: landlords managing aging mortise-lock master-key systems across all three units must rekey every time a tenant cycles out, making late August the single busiest week of the year by far. No neighboring suburb faces this same triple-decker-plus-mass-turnover combination at this density.
The climate adds its own pressure. Somerville’s repeated freeze-thaw cycles each winter cause the old-growth softwood door frames of triple-deckers to swell and shift, routinely jamming deadbolts against misaligned strike plates and generating service calls from all three floors of the same building in a single cold snap. Road salt and sand tracked into shared vestibules accelerate corrosion on exposed mortise cylinder faces and strike hardware, shortening service intervals well below what manufacturers expect. In neighborhoods like East Somerville, Winter Hill, and Magoun Square, it’s common for us to receive calls from the same triple-decker address every August as student leases expire. The landlord needs all three units rekeyed and the vestibule master re-pinned before September 1st, and because so many buildings hit that deadline simultaneously, locksmiths who don’t pre-book that week months in advance simply run out of appointment slots.
Our Main Somerville Services
Two services dominate our Somerville call volume: lock installation and rekey work on triple-decker unit doors, and emergency response for lockouts and jammed mortise locks. Each has a dedicated Somerville page with full pricing.
Lock Installation & Rekey in Somerville
Most Somerville rekey jobs involve matching new tenant keys to an existing master system across three units and a shared vestibule - a four-cylinder job on average. We stock mortise cylinders and replacement strikes for pre-1930 hardware, and we quote per-cylinder pricing in writing before starting. See the full breakdown on the Lock Installation & Rekey in Somerville page.
Emergency Locksmith in Somerville
Winter freeze-thaw cycles jam deadbolts against shifted strike plates across Somerville all season, and September 1st brings a wave of lockouts as tenants move out and keys don’t line up. Our emergency crews carry mortise-specific tools and replacement parts for century-old door frames. Response times, pricing, and what to expect are on the Emergency Locksmith in Somerville page.
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.
Residential Locksmith in Somerville
Residential locksmith work in Somerville centers on triple-decker unit doors and shared vestibule entries with mortise locksets that are often original to the building. These are not standard bored cylindrical locks - they’re mortise bodies set into heavy wood doors that have settled over 100-plus years, and rekeying one unit usually means addressing the vestibule door and the other two unit doors at the same time. Our Residential Locksmith team handles everything from tenant-turnover rekeys to deadbolt upgrades, all quoted in writing at Haven Standard Clause 1 before a cylinder gets turned.
Lock Change
Signs you need it
The existing lock is a worn mortise lockset with sloppy cylinder play, the key sticks or binds in cold weather, or you have no record of how many previous tenants still hold copies of the current key.
What it costs in Somerville
A standard unit-door lock change in Somerville runs $95-$185 per lock, including the new lockset and labor; mortise lock replacements run higher because the lock body must fit the existing pocket.
How we do it
We remove the old lock, measure the mortise pocket and backset, install a correctly sized replacement, and test the latch and deadbolt alignment across all three hinge-loaded points before documenting the finished work with photos.
Lock Rekey
Signs you need it
A tenant moved out, you just bought the building, or you can’t account for every key that was ever copied for the existing cylinder.
What it costs in Somerville
Lock rekey in Somerville typically runs $25-$45 per cylinder, quoted in writing before we start; a triple-decker with a vestibule plus three unit doors is a four-cylinder job.
How we do it
We remove each cylinder, replace the pins to match a new key, and reinstall - on Somerville mortise locks this means the cylinder comes out of the mortise body, not the knob.
What Residential Locksmith Costs in Somerville
| Item | Typical range in Somerville |
|---|---|
| Lock rekey (per cylinder) | $25-$45 |
| Lock change (standard) | $95-$185 per lock |
| Deadbolt installation | $85-$190 per lock |
How many cylinders does a Somerville triple-decker rekey actually involve?
Typically four: the shared vestibule entry plus three unit doors. We quote per-cylinder pricing in writing before starting, so the total is clear from the first phone call.
Can you match the new keys to the existing master key system?
Yes. We re-pin each unit cylinder to the master system so the landlord’s key continues to work across all three floors while each tenant key only opens its own unit. Call (331) 310-8471 for an exact quote.
Commercial Locksmith in Somerville
Commercial locksmith work in Somerville means storefronts on the ground floors of triple-deckers, offices in converted loft buildings around Union Square and Davis Square, and landlords managing master-key systems across multiple rental units. The local condition that shapes most commercial jobs here is the same mortise hardware found in residential triple-deckers, carried into storefront and office doors that have been in service since before 1930. Our Commercial Locksmith team handles everything from access control to panic bar installation, with every job quoted in writing before work begins.
Master Key System
Signs you need it
You manage a Somerville triple-decker or a mixed-use building where the landlord key must open all doors, but each tenant or employee key should only open its assigned space.
What it costs in Somerville
Master key system work in Somerville runs $25-$45 per cylinder plus a one-time setup charge, quoted in writing after we assess the existing cylinder types.
How we do it
We survey every cylinder in the building, map the key hierarchy with you, pin each cylinder to its assigned level, and deliver a documented key chart showing exactly what each key opens.
Panic Bar Installation
Signs you need it
A commercial door in Somerville is required to have a panic bar by code or your insurer, but the existing exit device is worn, corroded, or no longer retracts cleanly on the first push.
What it costs in Somerville
Panic bar installation in Somerville typically runs $450-$1,200 per door, including the exit device and labor; the range depends on door width and whether the existing strike needs replacement.
How we do it
We measure door width and mounting height, install the bar and vertical rods if required, set the latch and strike alignment, and test the exit from both sides before documenting the job with photos.
What Commercial Locksmith Costs in Somerville
| Item | Typical range in Somerville |
|---|---|
| Master key system (per cylinder) | $25-$45 plus setup |
| Commercial lock change | $95-$185 per lock |
| Panic bar installation | $450-$1,200 per door |
Can you rekey a commercial space without disrupting business hours?
Yes. We schedule commercial rekey and master key work around your operating hours, including early morning and evening slots. The price is quoted in writing before we arrive.
Do you handle access control for Somerville commercial buildings?
Yes, we install and service access control systems including keypads, fobs, and card readers, integrated with existing door hardware. Call (331) 310-8471 for a written scope and flat per-lock price.
Automotive Locksmith in Somerville
Automotive locksmith calls in Somerville often start with a car parked on a narrow street in East Somerville or Winter Hill, where a lockout blocks a driveway or a bus lane and the owner needs it resolved quickly. The dense triple-decker blocks mean tight parking, and a car that won’t unlock or start can quickly become a problem for neighbors and the city. Our Automotive Locksmith team handles lockouts, key replacement, and transponder programming with mobile service that comes to you anywhere in Somerville.
Car Lockout
Signs you need it
Your keys are inside the locked car, the key won’t turn in the frozen door lock, or the door lock cylinder is too corroded from road salt to accept the key at all.
What it costs in Somerville
Car lockout service in Somerville typically runs $60-$120, with no call-out surcharge added on arrival - the price quoted on the phone is the price on the invoice.
How we do it
We arrive in a mobile van, open the door with the proper tools for your vehicle’s lock type, and verify the key works before we leave - no drilled cylinders unless the lock was already failed.
Car Key Replacement
Signs you need it
You lost the last working key, the key snapped in the ignition, or the key you have is worn smooth and no longer turns the cylinder reliably.
What it costs in Somerville
Car key replacement in Somerville runs $95-$350 depending on the key type: basic metal keys are cheapest, transponder keys and fobs run higher, and smart keys top the range.
How we do it
We cut the new key to the vehicle’s VIN or by matching the existing lock, program the transponder or fob with our mobile equipment, and verify start and lock function before we leave.
What Automotive Locksmith Costs in Somerville
| Item | Typical range in Somerville |
|---|---|
| Car lockout | $60-$120 |
| Car key replacement | $95-$350 |
| Key fob programming | $50-$150 |
Can you make a car key from the VIN in Somerville?
Yes, for most vehicles we can cut and program a new key from the VIN, as long as you can provide proof of ownership. Call (331) 310-8471 for a firm quote before we dispatch.
How fast can you reach a car lockout in Somerville?
Our mobile units serve Somerville neighborhoods including East Somerville, Winter Hill, and Magoun Square directly, with typical response under 45 minutes. The dispatcher gives you a firm price on the phone.
Brands We Service in Somerville
We carry parts and cylinders on our Somerville service vans for Medeco, Yale, Baldwin, and Mul-T-Lock, covering the spectrum from entry-grade hardware to high-security cylinders that can’t be picked or bumped by standard tools. Replacement parts for mortise locksets are stocked locally, so most brand-specific work is completed same-day. See the full list on our brands page.
Pricing for Locksmith in Somerville, MA
| Service | Typical range in Somerville |
|---|---|
| Lock rekey (per cylinder) | $25-$45 |
| Lock change (standard) | $95-$185 per lock |
| Deadbolt installation | $85-$190 per lock |
| Residential lockout | $60-$120 |
| Commercial lock change | $95-$185 per lock |
| Master key system (per cylinder) | $25-$45 plus setup |
| Panic bar installation | $450-$1,200 per door |
| Car lockout | $60-$120 |
| Car key replacement | $95-$350 |
| Key fob programming | $50-$150 |
What pushes a Somerville job toward the top of a range is usually the mortise factor: original pre-1930 lock bodies, drifted strike plates from decades of frame movement, and shared vestibule entries that turn a one-cylinder call into a four-cylinder job. Whatever the number, the dispatcher quotes it in writing before we dispatch, and the technician is not permitted to change it at your door.
Neighborhoods We Serve in Somerville
We cover all of Somerville with the same live-answer phone line and written pricing, from the triple-decker rows of East Somerville to the converted industrial lofts around Union Square and the single-family streets of West Somerville.
- East Somerville
- Winter Hill
- Magoun Square
- Union Square
- Davis Square
Typical response across Somerville is under 45 minutes for emergency calls, and we schedule rekey and installation work in advance for August turnover season.
Service Area - Cities Near Somerville
Our Somerville crews also cover the surrounding metro area, including Cambridge, MA, Medford, MA, Boston, MA, and Everett, MA. If you’re just over the line, call (331) 310-8471 and the dispatcher will confirm coverage and quote a firm price in writing.
Serving Somerville, MA - Our Local Coverage Area
We’re based in the Somerville 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 in Somerville
August is our single busiest month in Somerville because every lease ends the same day, September 1st. We recommend booking rekey work in June or July to lock in a slot; emergency response during that week stays under 45 minutes, but scheduled jobs fill fast.
No permit is required for residential lock changes, rekeys, or deadbolt installation in Somerville. For commercial doors, some mixed-use buildings require landlord approval before hardware changes, and we can provide a written scope for that conversation.
Somerville is covered directly as its own service area, with crews dispatched to the city and parts stocked on the vans for pre-1930 mortise hardware. Scheduling and dispatch are coordinated from our Boston metro office.
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.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Somerville Customers Say
"Fast, polite, and carried identification without being asked. Would use again."
- Grant W."Locked out at eleven at night. A person answered, gave me a time and a name, and both were right."
- Franklin D."Quoted forty-five on the phone, paid forty-five at the door. I had been burned by a company that quoted nineteen and then wanted three hundred."
- Theresa Q.