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 Commercial Locksmith Across Florence-Graham
Commercial locksmith work in Florence-Graham, CA usually costs between $85 and $320 depending on the job, and we can often have a technician at your door the same day you call. Most of the commercial and rental work we do here centers on Door Lock Repair in Florence-Graham, rekeying multi-unit buildings, rebuilding aged mortise locks, and installing master key systems that give owners and landlords real key control. Florence-Graham’s stock of pre-1960 stucco bungalows, duplexes, and courtyard apartments creates a specific set of problems that generic metro locksmiths don’t carry parts for. Call (910) 714-4287 and you’ll get a live person, a written price, and a technician sent to you by name and photo before the visit.
Why Dunmore Locksmith Is Florence-Graham’s Preferred Commercial Locksmith Company
We got called to a 1940s courtyard fourplex off Florence Avenue near the Graham branch library, where the landlord’s original Corbin mortise locks were binding shut as Santa Ana winds had swollen the wooden door frames. Our techs rebuilt the mortise bodies, rebuilt the mortise lock cylinders, cut fresh keys, and pinned a small master key system. A single visit left all four units keyed alike with tenant-specific sub-keys, no second trip. That’s the kind of work that defines commercial locksmith service in Florence-Graham, and it’s why property managers and owners keep our number.
Perry Osgood, who leads Dunmore Locksmith, built the team around a simple rule: know exactly who is coming to your door before you open it. Every technician is background-checked, identity-verified, and sent to you by name and photo before the visit, wearing a clean uniform and carrying a photo ID badge shown at the door. If anyone arrives you weren’t told to expect, that visit is covered at no charge. That’s the Threshold Standard, and it matters even more on commercial jobs where you’re giving a stranger access to tenant units, file rooms, or maintenance areas.
Our Commercial Locksmith team carries mortise conversion kits and rebuild parts for the Corbin and Russwin lock bodies still running in Florence-Graham’s 1930s and 1940s rental units. We stock Schlage, Kwikset, and Medeco cylinders on the truck, and we quote the full price in writing before any work begins. That price is the price on the invoice. No call-out surcharge added on arrival, no estimate that balloons after the first lock is opened.
Master Key System in Florence-Graham
A Master Key System in Florence-Graham typically runs $25 to $45 per cylinder above the cost of rekeying, so a four-unit courtyard building usually lands between $280 and $520 total depending on cylinder count and hardware condition. What you’re buying is key control: one owner key opens every unit door and common door, while each tenant key only opens their own unit. That’s not a convenience, it’s a necessity for landlords who need to enter for maintenance or turnover without carrying a ring of eleven different keys.
Why Multi-Unit Landlords Order This First
Florence-Graham’s rental density means turnover happens constantly. When a tenant moves out, you rekey that unit so the old key stops working, and your master still opens it. When you add it up across a fourplex or a courtyard building, a master key system pays for itself inside two turnover cycles. We pin the system on-site and hand you a written key chart showing exactly how many keys exist and who holds them.
What It Costs to Retrofit Older Hardware
Rekeying a standard knob or deadbolt cylinder in Florence-Graham runs $18 to $35 per cylinder. Adding a master key layer to that same cylinder is usually $25 to $45 more. If the lock body itself is a worn Corbin or Russwin mortise from the 1940s, expect a rebuild charge of $60 to $140 per unit on top of the rekey. We’ll give you the full written price on the phone before a tech is dispatched, and there’s no surcharge added when they arrive.
Mortise Lock Replacement in Florence-Graham
Mortise Lock Replacement in Florence-Graham runs $180 to $340 per door when the lock body has failed or the landlord is done patching a 70-year-old mechanism. This is the single most common upgrade we perform on the pre-1960 duplexes and courtyard apartments that dominate the area, because the original Corbin and Russwin mortise bodies from the 1930s and 1940s were built well but they were never designed to run for eight decades without rebuilds. When a mortise body finally gives out, replacing it with a modern commercial mortise lock, often a Schlage L-Series body, gives the landlord a serviceable lock that can be rekeyed for decades.
Rebuild First, Replace When Needed
We try a rebuild before we sell a replacement. A standard mortise rebuild in Florence-Graham costs $60 to $140, which covers disassembling the body, replacing worn springs and levers, lubricating, and reinstalling. Many original Corbin bodies from the 1940s rebuild beautifully and will keep running another twenty years. We only recommend replacement when the body casing is cracked, the cylinder threads are stripped, or the tailpiece has failed beyond repair.
When the Door Frame Is the Real Problem
The dry Mediterranean climate combined with periodic Santa Ana wind events causes the wooden door frames common in older Florence-Graham bungalows to swell, warp, and shift. That binding is what generates a lot of “the lock is broken” calls, when the lock body is fine and the frame has simply moved. We check strike alignment and latch throw every time we touch a mortise lock here, because replacing the lock without fixing the frame means you’ll call us again in six months.
Trusted Brands We Service in Florence-Graham
We’re factory-authorized on Schlage, Kwikset, and Medeco hardware, and we carry mortise conversion kits plus rebuild parts for the Corbin and Russwin bodies still running all over Florence-Graham. That means when we show up to a 1940s duplex off Graham Avenue, we’re not standing there with nothing but a fresh knob set and a drill. We carry what the local housing stock actually needs. Turnaround is fast because the parts are on the truck, not ordered from a warehouse across town.
Common Commercial Locksmith Problems We See in Florence-Graham Homes
- Antique Corbin and Russwin mortise bodies binding shut. Santa Ana-driven humidity swings swell the old wooden door frames on 1930s and 1940s units, and the original mortise internals bind against the shifted strike plates. Non-destructive entry works on most of these, and we carry rebuild parts so the original hardware gets preserved instead of drilled.
- Budget knob sets installed by absentee landlords. These cheap Kwikset-style cylinders fail fast under renter traffic, and they’re rarely pinned to match anything else on the property. Rekeying them in Florence-Graham runs $18 to $35 per cylinder, and we’ll often recommend pinning a small owner key across all units while we’re there.
- Rapid tenant turnover requiring immediate rekeys. When a unit turns over, the old tenant’s keys need to stop working, and the new tenant needs keys that open only their unit. We rekey multi-unit buildings in Floyd-Graham in a single visit, cutting all new keys on-site and handing the owner a written key count.
- Courtyard buildings with mixed hardware generations. A 1930s courtyard fourplex might have original Corbin mortise bodies on two doors, cheap knob sets on one, and a modern deadbolt on the fourth. We service all of it in one trip and can pin a master key system across the mismatched hardware.
Pricing for Commercial Locksmith in Florence-Graham, CA
Here’s what you’ll actually pay.
- Rekey a standard knob or deadbolt cylinder: $18 – $35 per cylinder
- Master key pinning per cylinder: $25 – $45
- Mortise lock body rebuild: $60 – $140
- Mortise lock replacement (commercial body, Schlage L-Series or similar): $180 – $340 per door
- Commercial lockout, non-destructive entry attempted first: $75 – $150
- File cabinet or mailbox lock rekey or replacement: $15 – $45 per cylinder
The price we quote on the phone is the price on the invoice. No surcharge added when the tech arrives, no bait figure that triples after the first lock is opened. Perry Osgood and the Dunmore Locksmith team have run on written prices since 2007, because a landlord who manages six units on Graham Avenue deserves to know the number before the work starts. Estimate is free. Call (910) 714-4287.
We Also Serve Cities Near Florence-Graham
Our Commercial Locksmith in Florence-Graham service regularly covers properties in and around Los Angeles, San Diego, San Jose, and San Francisco. If you manage rental units or commercial property in Florence-Graham and nearby areas, we’ll coordinate the schedule and give you a written price before any tech is dispatched. One call handles the whole list.
Serving Florence-Graham, CA - Our Local Coverage Area
We’re based in the Florence-Graham 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 Commercial Locksmith in Florence-Graham
Yes. We regularly rekey all units in a Florence-Graham courtyard building in a single visit, including rebuilding the old Corbin or Russwin mortise bodies and cutting fresh keys for every tenant. Expect $18 to $35 per cylinder for the rekey, plus $60 to $140 per unit if the mortise bodies need a rebuild. Call (910) 714-4287 for a written quote before the tech is sent.
It does. Florence-Graham falls under LA County code enforcement and the Sheriff’s Department rather than LAPD, which means commercial and rental properties are held to County standards and Sheriff response times. For locksmith work, that mostly means keeping hardware functional and secure, and documenting that every unit is properly keyed. We’ve worked within County expectations for years and can keep your building compliant and locked down.
The dry Mediterranean climate and periodic Santa Ana winds cause the old wooden door frames in Florence-Graham’s pre-1960 bungalows and duplexes to swell, warp, and shift. The lock body is usually fine, but the latch no longer aligns with the strike plate. We fix the alignment and adjust the hardware, and if the mortise body has been damaged by years of forced turning, we rebuild it on-site. Call (910) 714-4287 and we’ll diagnose it over the phone first.
Yes. A master key system gives you one owner key that opens every unit door and common door, while each tenant gets a key that only opens their own unit. In Florence-Graham, we pin these systems on-site during a single visit, and you get a written key chart. Master key pinning runs $25 to $45 per cylinder on top of the rekey. Call (910) 714-4287 for a free estimate.
Rekey first if the hardware still turns smoothly. Rekeying in Florence-Graham costs $18 to $35 per cylinder, and it’s the fastest way to regain key control after a tenant leaves. If the knobs are worn loose or the cylinders are failing, we’ll recommend you Change Door Locks in Florence-Graham with a Schlage or Kwikset commercial-grade unit, typically $60 to $140 per door installed. We’ll show you the condition and give you a written price before any work is done. Call (910) 714-4287.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Florence-Graham and the surrounding LA County area since 2007 as part of the Threshold Group family.






