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 San Francisco
Commercial locksmith work in San Francisco is different from anywhere else in the Bay Area, and the reason is simple: the buildings themselves are older, denser, and more legally complicated than almost anywhere in the state. A storefront off Market Street, a warehouse in the Bayview, or a converted Victorian office in the Mission each carries its own hardware quirks and tenant law considerations. Dunmore Locksmith has worked inside San Francisco’s commercial properties long enough to know that a mortise lock from a Jackson Square brick building cannot be treated like a cylindrical deadbolt in a Dublin office park. If you need a Commercial Locksmith who knows this city block by block, call (910) 714-4287 and you’ll reach a live person who can dispatch a technician to your San Francisco address, usually the same day.
Why Dunmore Locksmith Is San Francisco’s Preferred Commercial Locksmith Company
Commercial property managers across San Francisco tell us the same thing: most locksmiths who show up do not understand the hardware in this city’s older buildings. A technician who has only worked in newer construction will look at a 1910-era mortise lock on a Jackson Square storefront and recommend replacing the entire door. That is an expensive answer to a solvable problem. Our Commercial Locksmith team carries custom pinning kits and replacement mortise cylinders sized for San Francisco’s original hardware, so we rekey what should be rekeyed and replace only what has actually failed.
Every technician we send to a San Francisco job is background-checked, identity-verified, and photo-badged under the Threshold Standard. You receive the technician’s name and photo before the visit, and they arrive in a clean marked uniform with an ID badge shown at the door. This matters even more for commercial work, where a property manager might be authorizing entry for an employee they have never met. The Threshold Group has operated this standard since 2007, and Dunmore Locksmith carries it on every single commercial call in San Francisco.
Our phones are answered by a live person 24 hours a day, 365 days a year. When a commercial tenant is locked out of a storefront at 6 a.m. before opening, or a property manager needs a lock changed after an employee departure, someone picks up. No voicemail. No chatbot. A real human who can dispatch a San Francisco technician immediately.
Key takeaways about our San Francisco commercial service:
- Response to most San Francisco commercial addresses within 60 to 90 minutes during business hours
- Written price delivered before any work starts, and that is the price on the invoice
- 365-Day Done Right Promise on every repair: if the fix fails, we return at no charge
- Factory-authorized work on Schlage, Kwikset, Medeco, and Yale commercial hardware
Commercial Door Repair in San Francisco
Commercial door repair in San Francisco usually means one of three things: a door that will not latch, a door that will not close flush against the frame, or a lock that turns but will not throw. In this city, all three are frequently caused by the same underlying condition: the chronic marine layer and salt-laden fog that blows in from the Pacific. West-facing commercial doors in the Outer Sunset and Richmond districts take direct fog exposure for hundreds of hours each year. A steel deadbolt bolt that would last 15 years in Sacramento will pit and seize within 5 to 7 years on Ocean Beach or along the Great Highway. The wood frames on older Victorian commercial conversions also swell seasonally as moisture moves through the jambs, shifting the door enough that the bolt binds against the strike plate.
When a repair beats a replacement
If the door slab and hinges are sound, a commercial door repair is almost always cheaper than replacing the slab or the frame. We can file and realign strike plates, replace seized cylinders, adjust operable hinges, and rebuild worn mortise lock bodies using original-spec parts. A standard commercial door repair in San Francisco typically runs $140 to $320, depending on whether we are rekeying the existing cylinder or replacing it with a marine-grade one.
Fog-corroded cylinders and marine-grade swaps
In fog-exposed neighborhoods, we carry marine-grade replacement cylinders that resist the pitting and internal corrosion that kills standard hardware. The cylinder swap itself is often a 30-minute job. If we see a building with repeated corrosion failures on west-facing doors, we will tell you about the upgrade, show you the price difference in writing, and let you decide.
Master Key System in San Francisco
A master key system in San Francisco is practically a necessity for any commercial building with more than two or three tenant spaces. One key opens the building’s common entry, another key opens only the tenant’s own door, and a restricted master key held by the owner or property manager opens everything. In a dense multi-unit commercial building near the Mission District or along Valencia Street, a properly pinned master key system eliminates the need to carry a ring of 20 keys and lets you revoke access cleanly when a tenant leaves. We design and install hierarchical master key systems using Schlage, Kwikset, Medeco, Yale, and Mul-T-Lock hardware, with the system keyway and depth charts documented and stored securely.
Adapting master keying to heritage mortise locks
Most San Francisco commercial buildings from the 1880s through the 1930s were built with mortise lock bodies, not the cylindrical deadbolts common in newer construction. The good news is that most quality mortise bodies can be pinned into a master key hierarchy without replacing the entire lock. We rekey the existing cylinders to the new master key chart, and the original door hardware stays intact. That preserves the appearance of a Jackson Square storefront or a converted warehouse and costs far less than ripping out original locks.
Typical master key project pricing
For a small commercial building with 4 to 6 doors, a master key system in San Francisco typically runs $220 to $450, depending on the number of cylinders being rekeyed and whether any cylinders need replacement due to corrosion or wear. A larger building with 10 to 15 doors and multiple access levels generally falls between $500 and $900. We deliver a written flat price before we touch a single lock.
Trusted Brands We Service in San Francisco
We are factory-authorized to install and service Schlage, Kwikset, and Medeco commercial hardware, and we stock the replacement cylinders, pins, and tailpieces those brands require. That matters in San Francisco because the older mortise locks in Victorian and Edwardian commercial buildings often need brand-specific pins and springs that a generalist locksmith would have to special-order, adding days to a job. A property manager in the Outer Sunset called us after a west-facing commercial door’s deadbolt had seized from salt-laden fog – the lock cylinder was pitted and the bolt would not throw at all. We performed non-destructive entry, then swapped the corroded cylinder and rekeyed the mortise lock to match the building’s existing master key system. The fix took one visit, but we made sure the new cylinder was marine-grade to survive the next fog season. When a San Francisco business owner needs commercial locksmith work done the same day, our local parts stock makes that possible.
Common Commercial Locksmith Problems We See in San Francisco Homes
- Seized or pitted exterior cylinders from salt fog. West-facing doors in the Outer Sunset, Richmond, and anywhere near Ocean Beach take the brunt of Pacific fog. A standard zinc or brass cylinder can corrode internally within five years, leaving the key unable to turn. Replacing it with a marine-grade or stainless cylinder usually solves the problem for the life of the lock.
- Mortise locks in Victorian-era buildings with worn internal springs. The original mortise bodies in pre-1930 San Francisco commercial buildings often have flat springs that fatigue and snap. The symptom is a deadbolt that will not throw or a latch that sticks. These bodies can be rebuilt and rekeyed rather than replaced, which preserves the door’s original appearance.
- Rent Ordinance complications on multi-unit buildings. If a San Francisco commercial property has residential tenants, which is common in mixed-use buildings in the Mission or Castro, changing the front door lock without documenting tenant notification can trigger an illegal-lockout complaint with the SF Rent Board. We ask the documentation questions before we change the lock, not after.
- Badly installed cylindrical deadbolts in original mortise doors. Somewhere along the line, a prior locksmith or handyman drilled a cylindrical deadbolt into a door that originally held a mortise lock, leaving visible gaps and a weakened jamb. We see this constantly in San Francisco’s older commercial stock. The fix usually involves installing a correctly fitted mortise lock or filling and re-drilling the existing hole with proper reinforcement.
Pricing for Commercial Locksmith in San Francisco, CA
Honest pricing in San Francisco starts with giving you real numbers before we dispatch. We do not work from teaser rates, and we do not add a call-out surcharge when the technician arrives. The price we quote on the phone is the price on the invoice, and it is always delivered in writing before any work begins.
- Commercial lockout (non-destructive entry, no lock damage): $95 to $160, including the service call
- Rekey a standard commercial mortise or cylindrical lock: $35 to $60 per cylinder, plus the service call
- Commercial door repair (strike plate realignment, hinge adjustment, bolt replacement): $140 to $320
- Master key system for a 4 to 6 door commercial building: $220 to $450
- High-security cylinder upgrade (Medeco or Mul-T-Lock): $120 to $260 per cylinder
- Panic bar installation on a single commercial door: $280 to $520
Call (910) 714-4287 for a free, itemized estimate on your San Francisco commercial locksmith job. We tell you the full price before anyone is dispatched.
We Also Serve Cities Near San Francisco
Our Commercial Locksmith in San Francisco crews cover the city itself and the immediate surrounding communities for commercial jobs. That includes Daly City, Brisbane, Sausalito, and South San Francisco. If your property sits in one of these neighboring cities, the same San Francisco-based team handles the work, with the same written pricing and the same 365-Day Done Right Promise.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco 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 San Francisco
Yes, in most cases we can rekey the original mortise lock without replacing it. We carry pinning kits and replacement cylinders sized for the mortise locks found in San Francisco’s Victorian and Edwardian commercial buildings from the 1880s through the 1930s. Rekeying typically costs $35 to $60 per cylinder plus the service call. If the lock body itself is worn or broken, we will show you the exact condition and give you a written repair price before doing anything. Call (910) 714-4287 and describe your lock, and we can tell you over the phone whether it is likely rekeyable.
If any unit in your San Francisco building is occupied under the SF Rent Ordinance, you need documented notice to every affected tenant before changing a lock that controls access to their unit or the common entry. A landlord who changes a lock without proper notice and without a lawful reason can face an illegal-lockout complaint with the San Francisco Rent Board. We will ask whether the property has rent-controlled tenants, and if it does, we will ask you to confirm in writing that notice has been given before we touch the front door lock. This is a standard question for us in San Francisco; it is not something a Daly City or Walnut Creek locksmith would typically raise.
The salt-laden fog off the Pacific corrodes standard lock cylinders and deadbolt bolts far faster in San Francisco than in inland cities. A standard cylinder can seize within 5 to 7 years on a west-facing door in the Outer Sunset or Richmond, especially if the door catches direct fog. The permanent fix is replacing the cylinder with a marine-grade or stainless unit and using a lubricant rated for salt-air environments on the bolt and strike plate. The upgrade costs about $20 to $40 more per cylinder than a standard replacement, and it typically ends the repeat seizures.
Yes, we design and install master key systems for commercial buildings throughout San Francisco, including the Mission, Castro, SoMa, and the Financial District. For a typical 4 to 6 door building, a master key system runs $220 to $450. For larger properties with 10 to 15 doors and multiple access levels, the price is usually $500 to $900. We build the system on Schlage, Kwikset, Medeco, or Mul-T-Lock hardware, document the key hierarchy, and rekey the existing cylinders so original door hardware stays intact. Call (910) 714-4287 and we can put a written flat price together after a quick walkthrough of the door count.
We use non-destructive entry first on nearly every commercial lockout in San Francisco. Drilling is a last resort and only happens with your written approval after we have told you what it will cost. Non-destructive entry typically costs $95 to $160, including the service call to your San Francisco address. In the rare case where the lock is too corroded or damaged to pick, we will photograph it, explain the situation, and give you the replacement cost before drilling. Call (910) 714-4287 for an emergency commercial lockout and we will give you the price on the phone.
If you manage a San Francisco commercial property and need a locksmith who understands Victorian mortise locks, salt-fog corrosion, and the Rent Ordinance, call Dunmore Locksmith at (910) 714-4287. Perry Osgood, who leads our team, has built the service around one promise: you will know exactly who is coming to your door, what the job will cost, and that the work is covered for a full year. Estimates are free. The phone is answered by a person, day or night.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving San Francisco and the surrounding Bay Area since 2007.