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 means dealing with buildings that were standing before a lot of current hardware ever existed. A rekey on a Montgomery Street office suite, a panic bar replacement in a SoMa warehouse, a master key system for a Cow Hollow property management office. We’re Preston Locksmith & Security, and we handle all of it with one rule: the price you get on the phone is the price on the invoice. Our crews serve San Francisco locally, dispatched from our Bay Area office, which means we can hit most commercial addresses in the city within an hour. Call (409) 405-4485 and you’ll talk to a live person, not a voicemail tree. The estimate is free, and it’s in writing before anyone rolls a truck.
Why Preston Locksmith & Security Is San Francisco’s Preferred Commercial Locksmith Company
We’ve been doing this since 2008, and the biggest differentiator our San Francisco commercial clients mention isn’t the hardware or the speed. It’s the written price. Before any tool comes out of the bag, you have a dollar figure and a scope of work in writing, and that number doesn’t move unless the scope changes and you approve it first. Every technician is background-checked and shows up in uniform, which matters in a city where building engineers and front-desk staff have to log every vendor who crosses the lobby. And our 365-Day Done Right Promise is stamped on every repair: if it fails, we come back and fix it, free of charge. No argument, no re-quote.
High Security Locks in San Francisco
High Security Locks in San Francisco are the default for commercial tenants who’ve already learned the hard way that a standard Schlage deadbolt gets picked or forced in under a minute. We install and service Medeco, Mul-T-Lock, and Abloy cylinders, and we re-pin them rather than replace them whenever the lock body is sound. A high-security cylinder install in San Francisco typically runs $140 to $280 per door depending on whether we’re replacing an existing cylinder or prepping a fresh hole, and that price is confirmed in writing before we start. Most jobs are done in under an hour.
Non-Destructive Entry and Re-pinning
When a Medeco or Mul-T-Lock cylinder is involved, the last thing you want is a technician who reaches for a drill. Drilling a high-security lock destroys the cylinder and often the lock body, and the replacement cost triples. We open by picking or shimming first, and on the rare job where a cylinder has to be drilled, we tell you before we do it and explain exactly why.
Key Control and Restricted Blanks
High security isn’t just about the lock, it’s about who can make keys for it. Medeco and Mul-T-Lock restricted keyways mean no one can walk into a hardware store and duplicate a key. We track every key we cut and give you a paper trail. For a San Francisco office manager, that’s the difference between knowing who has keys and guessing.
Commercial Door Repair in San Francisco
Commercial Door Repair in San Francisco is rarely a simple part swap, because the door itself is usually the problem. Downtown and SoMa buildings are overwhelmingly pre-1930 masonry and stucco, which means door frames have shifted over decades. A mortise lock pocket that was cut in 1921 isn’t square anymore, and a deadbolt that installs in fifteen minutes in a suburban strip mall can require shimming, a strike-side reinforcement plate, or a completely fresh mortise prep here. Flat quotes given over the phone without knowing the wall condition are guesses. Our phone quote always includes the caveat that frame condition may change the labor, and we confirm the final figure in writing before a single screw gets turned.
Strike Plates and Reinforcement
A commercial door is only as strong as its strike plate, and on a racked frame, a standard strike plate sits proud or angled, which is why commercial doors get pried so easily in San Francisco. We check alignment on every repair and recommend a steel reinforcement plate when the frame shows any sign of spread. That’s a $40 to $70 part, and it’s a lot cheaper than replacing a forced door.
Closers and Hinges
Hydraulic closers on commercial doors in San Francisco take a beating from constant foot traffic and salt air off the Bay, which corrodes the seals. We replace and adjust closers, and we’ll tell you if the real issue is a sagging hinge rather than the closer itself. Diagnosing the actual problem, rather than just swapping parts, is the difference between a repair that lasts and one that fails in three months.
Trusted Brands We Service in San Francisco
We work on Schlage, Kwikset, Medeco, Yale, Baldwin, Mul-T-Lock, Sargent, and Abloy hardware, and we keep common commercial parts in the van for San Francisco jobs. A Schlage mortise cylinder, a Yale panic bar, a Medeco restricted keyway, we’ve got those on the truck most days. That means no second trip to a supplier, which is the difference between a same-day repair and a two-day wait. When a San Francisco storefront can’t lock its front door, that second day is lost revenue.
Common Commercial Locksmith Problems We See in San Francisco Homes
- Racked frames on pre-war doors: The frame has shifted over decades, so the deadbolt throw binds or misses the strike entirely. The fix is shimming and strike reinforcement, not just a new lock, and we quote it honestly rather than surprising you with it after we’ve already started.
- Mortise lock bodies cracked at the faceplate: Someone tried to force the door or the frame is out of square, so the lock body takes the load. We replace the mortise body when the cylinder is still salvageable, which saves a few hundred dollars over full replacement.
- High-security cylinders destroyed by drilling: A previous locksmith reached for the drill on a Medeco or Mul-T-Lock instead of trying non-destructive entry first. Now the cylinder is scrap and the door might be too. We open clean first and drill only as an absolute last resort.
- Panic bars that won’t latch or won’t release: Salt air and heavy use wear out the internal latches, especially on Bay-facing doors in South San Francisco and Brisbane. We rebuild rather than replace when the bar is still sound, which cuts the bill in half on many units.
Pricing for Commercial Locksmith in San Francisco, CA
We Also Serve Cities Near San Francisco
Our vans cover San Francisco and the surrounding area, so if your office is a few blocks into Daly City, Brisbane, Sausalito, or South San Francisco, you’ll get the same written-price-before-work-starts policy. The commercial terrain doesn’t change much across the county line, and neither does our approach. Every job gets a live trackable arrival time and before-and-after photos. If you’re near the city line, call and we’ll confirm coverage. For a broader look at everything our Commercial Locksmith team handles, or to see how we serve San Francisco specifically, those pages get into it.
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
Can you quote a commercial rekey for our San Francisco office before sending someone out?
Yes, and we prefer to. A rekey for a standard Schlage or Kwikset commercial cylinder in San Francisco runs $85 to $120 per cylinder, and if you tell us the make and model of your hardware over the phone, that price holds. If it’s a mortise cylinder or a high-security keyway like Medeco or Mul-T-Lock, the range shifts to $120 to $180 per cylinder because we may need restricted blanks. The number we give you on the phone is the number on the invoice, no dispatch fee surprise when the van pulls up. Call (409) 405-4485 and we’ll walk through it.
Our storefront door has a mortise lock. Can you rekey it, or do we have to replace the whole thing?
We can rekey most mortise locks without replacing the body, as long as the housing isn’t cracked or the internal springs aren’t failing. The cylinder comes out, gets re-pinned, and goes back in, and the whole job runs $90 to $140 per cylinder in San Francisco. If the lock body is shot and a replacement is the real fix, we’ll show you the damage in a photo before you approve anything. That decision is yours, and the written quote covers whichever option you pick.
What does ANSI Grade 1 actually mean for a commercial door in San Francisco?
ANSI Grade 1 means the lock is rated for 800,000 cycles and has passed forced-entry testing that Grade 2 and Grade 3 locks cannot pass. For a San Francisco commercial door in an older building, Grade 1 hardware is the only thing we recommend, because those doors get hit by foot traffic, prop-open abuse, and sometimes a pry attempt. The hardware costs more, typically $90 to $160 for a deadbolt alone, but the alternative is a lock that fails in two years instead of ten.
How do we know the locksmith at our building is actually from your company?
Every Preston Locksmith & Security technician is background-checked and arrives in uniform, and you get a live trackable arrival time before they show up, so you see the van moving on the map. We also send the booking contact a photo of the technician before they arrive. No unmarked van, no stranger at the lobby door asking to be buzzed up. If your building logs vendors, we’re used to that, and we’ll show ID at the front desk without being asked.
Can you open our office door without destroying the lock if someone’s locked out after hours?
That’s our default approach, and it’s the thing that separates a real commercial locksmith from someone with a drill. We attempt non-destructive entry first, which means picking, shimming, or using a bypass tool depending on your hardware. High-security cylinders like Medeco and Mul-T-Lock take longer to pick, but drilling one destroys a $100 to $300 cylinder and often the lock body with it. We only drill when there is no other way in, and we tell you before we do it. For after-hours lockouts in San Francisco, the service call runs $120 to $180 depending on the hour, and you’ll have a written price before the van is dispatched. Call (409) 405-4485, and a live person answers, night or day.
If your building has a commercial lock, door, or access issue, the fastest way to a real price is a phone call. We answer 24/7, the estimate is free, and the price is in writing before anyone is dispatched. Call (409) 405-4485 and we’ll walk through exactly what the job involves and what it’ll cost. If you’re somewhere near the city line in Daly City, Brisbane, Sausalito, or South San Francisco, we cover that too, same terms.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving San Francisco, CA since 2008.