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 Residential Locksmith Across San Francisco
You’re locked out on a foggy Outer Sunset evening, or you just closed on a 1920s flat in Noe Valley and realized three different keys open three different doors. Either way, you need a residential locksmith in San Francisco who won’t keep you waiting in a four-hour window or hand you a bill that doubled between the phone call and the doorstep. Preston Locksmith & Security sends a background-checked, uniformed tech with a live arrival time you can track, a written price before any work starts, and the tools to handle everything from a Kwikset deadbolt to a 1905 mortise lock body. Call (409) 405-4485 and a live person answers. We serve every San Francisco neighborhood, from the Marina to the Mission to Miraloma Park.
Why Preston Locksmith & Security Is San Francisco’s Preferred Residential Locksmith Company
San Francisco homes are not like suburban tract houses. They’re Victorians with original mortise locks, 1960s Marina flats with narrow door stiles, and modern condos with multi-point locking systems. A locksmith who only carries pin-and-tumbler parts will drill through a perfectly good vintage cylinder because they don’t know non-destructive entry. Our Residential Locksmith team is trained on that older hardware. We see it every week.
Kevin Yoon leads our San Francisco operation. He’s the person behind the written guarantee on every repair, the 365-Day Done Right Promise, and the reason our techs show up in uniform with a price already locked in writing. Homeowners call San Francisco home because they love character. That character shouldn’t mean paying extra because a tech couldn’t handle a mortise lock. We quote the full price on the phone, before anyone is dispatched, and it’s the same price on the invoice.
We coordinate scheduling from the San Francisco Bay Area office, so our crews reach neighborhoods like the Richmond, Bernal Heights, and Portola without the long windshield time you get from an out-of-market dispatch service. That means faster arrival, less idle time on your clock, and a tech who knows what a Marin-style 1963 flat feels like when the fog has been eating at the door hardware for forty years.
House Lockout in San Francisco
House Lockout in San Francisco usually means one of three things: you left the keys inside a 1908 Edwardian near Dolores Park, the deadbolt is engaged with the mortise lock below it, or a key broke off in a weathered cylinder after forty foggy winters. Preston Locksmith & Security handles all of it without drilling unless the lock is genuinely beyond saving. The written price for a standard residential lockout in San Francisco typically runs $85 to $185, depending on the lock type and whether it’s after hours. The price is confirmed on the phone before a tech is dispatched, and there is no call-out surcharge added when the van pulls up.
Non-Destructive Entry on Older Doors
Most pre-war San Francisco doors have a mortise lock body recessed into the door edge, with a deadbolt above it or integrated into the same case. A tech who only knows pin-and-tumbler cylinders will reach for a drill. We don’t. We pick or bypass the mortise cylinder, get you inside, and the door edge remains untouched.
One Key for Every Lock
After a lockout, we rekey the locks so old keys stop working. On a home with a mortise lock, deadbolt, and maybe a separate rim latch, that means setting all cylinders to a single key. Schlage, Kwikset, Yale, Medeco, mul-t-lock compatible hardware, we stock the pins and cylinders to make it happen same day in San Francisco.
Deadbolt Installation in San Francisco
Deadbolt Installation in San Francisco starts with a question: what’s already on the door? Many Victorian and Edwardian homes here were built before deadbolts were standard, and the door edge is too narrow for a modern ANSI Grade 1 deadbolt without modification. Preston Locksmith & Security measures the backset and door stile first, then installs a deadbolt that seats properly. A standard deadbolt installation in San Francisco runs $120 to $260 per door, including the hardware if you take a grade 2 Schlage or Kwikset unit. The price is in writing before we cut the first hole.
Replacing a Worn Out Mortise Deadbolt
Some San Francisco homes have integrated mortise lock and deadbolt bodies from the 1930s or earlier. Replacing the whole body requires matching the case dimensions, faceplate width, and cylinder backset. We carry replacement mortise deadbolt bodies and know how to retrofit them without butchering the door edge.
Adding a Deadbolt to a Narrow-Stile Door
Marina-style flats from the 1950s and 1960s often have doors with stiles under three and a half inches. A standard deadbolt won’t seat without splintering the edge. We use narrow-backset deadbolts or surface-mounted rim deadbolts, depending on the door, and we’ll tell you which one before we start, not after.
Trusted Brands We Service in San Francisco
We service Schlage, Kwikset, Medeco, and Yale hardware daily, alongside Baldwin mortise locks and Sargent commercial-grade cylinders when a San Francisco homeowner has higher security needs. We keep common pin kits, cylinders, and deadbolt parts stocked on the van, so a rekey or deadbolt swap in the Mission or Outer Richmond doesn’t turn into a two-part job while we wait for parts. If your lock is one of those older Schlage wafer locks or a Yale mortise from the 1920s, we can usually rebuild or rekey it on the spot.
Common Residential Locksmith Problems We See in San Francisco Homes
- Mortise locks that get drilled by mistake. The older the home, the more likely the mortise lock body is the primary lock. A tech without the right tools drills it, and suddenly you need door-edge repair plus a new lock. We open these without drilling.
- Fog-season cylinder corrosion. San Francisco’s marine layer near the Sunset, Richmond, and Ingleside puts salty moisture on exterior lock faces. Brass cylinders corrode, keys stick, and snap. We clean and rekey these, and can upgrade to sealed deadbolts if you’re near the ocean.
- Rekeyed deadbolt with the mortise lock left original. A lot of handyman jobs in San Francisco rekey only the deadbolt and leave the mortise cylinder on the old key. Every old key still works. We set every lock to one key, every time.
- Narrow door stiles that crack with wrong deadbolts. Victorians and Marina flats have thin door edges. A standard 1-inch deadbolt hole near the edge weakens it. We use the right backset and reinforce the strike with longer screws so a kick doesn’t tear the jamb open.
Pricing for Residential Locksmith in San Francisco, CA
Rekeying a standard lock in San Francisco typically runs $25 to $45 per cylinder, plus a trip fee that’s quoted on the phone. A full-house rekey with three doors usually lands between $130 and $220 without new hardware. Deadbolt installation runs $120 to $260 per door. House lockouts run $85 to $185. These are honest ranges, not teaser rates. The price Kevin’s team gives you on the phone is the price on the invoice, because a written price before work begins is part of The Relay Visibility Guarantee. Call (409) 405-4485 for an exact quote and a free estimate. There is no charge for the estimate, and no surcharge gets added when the tech arrives.
We Also Serve Cities Near San Francisco
Our Residential Locksmith techs serve the entire city, and we also work with homeowners just outside San Francisco in Daly City, Brisbane, Sausalito, and South San Francisco. The same written-price rule and background-checked uniformed tech apply everywhere. Call and a live person answers, 24/7.
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 Residential Locksmith in San Francisco
Yes, we can unlock most San Francisco apartment doors with older mortise locks without drilling. We use non-destructive entry through the mortise cylinder and the right picks and tension tools for the vintage hardware, then rekey the mortise lock so old keys stop working. If the mortise body is seized or the key is broken off inside, we’ll tell you the exact cost to repair or replace it before any cutting happens. Call (409) 405-4485 and we’ll quote the lockout price in writing before dispatching anyone.
The tech at your door will be in a Preston Locksmith & Security uniform, show you their ID, and arrive at the exact live arrival time you were given on the phone. Before any work starts, they’ll show you the written price and match it to the estimate you received. You can also track their arrival in real time, so a random unmarked van never surprises you.
Rekeying on a San Francisco home with mixed mortise and deadbolt hardware means removing each cylinder, replacing the internal pins so the old keys no longer work, and setting all cylinders to one new key. We rekey mortise lock bodies, Schlage and Kwikset deadbolts, and Yale rim cylinders to one key, so every door opens with one key. The price per cylinder is confirmed in writing before we start, and you’ll get before-and-after photos with the digital invoice.
We can install a smart lock or keypad entry on a Victorian with a narrow door stile, but it depends on the stile width and the door prep. If the door edge is under three and a half inches, we may need a narrow-backset smart deadbolt or a retrofit lock that mounts over the existing deadbolt. We’ll inspect the door, tell you which units actually fit, and quote the full price before drilling anything. The estimate is free.
No, there is no extra charge for parking difficulty in the Sunset or Richmond. The price we quote on the phone for a lockout is the full price. Parking is our issue, not yours. The written price before dispatch includes everything except any hardware you specifically ask us to replace after the door is open.
Written by Kevin Yoon, Owner at Preston Locksmith & Security.