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 South San Francisco
When you need a Residential Locksmith in South San Francisco, the job usually comes down to one of two things: either an old lock has finally given out, or you’re standing outside with no way in. We serve every part of South San Francisco, from the tract streets of Sunshine Gardens up to the hillside homes off Sign Hill, and our crews know this city’s housing stock well enough to fix the problem without creating two new ones. You’ll get a written price before any work begins, and a real person answers our phone at any hour. Call (910) 714-4287 and you’ll be talking to someone who can dispatch a background-checked technician to your door, usually within the hour.
Why Dunmore Locksmith Is South San Francisco’s Preferred Residential Locksmith Company
Dunmore comes from old words for a great fort, a stronghold built to keep what’s inside safe. That’s the name we work under, and it’s the standard we hold in South San Francisco. We’re part of the Threshold Group network, and we’ve served customers under that umbrella since 2007. The Threshold Standard means every technician who comes to your South San Francisco home has been background-checked, identity-verified, and photo-badged. Before the visit, you receive the technician’s name and photo, so when the doorbell rings, you’re not guessing who’s on the other side. If someone arrives who we didn’t tell you to expect, that visit is free.
South San Francisco homeowners deal with specific lock problems born of this city’s age and weather. Our technicians work these neighborhoods every week, and they arrive knowing that a 1950s door off Westborough Boulevard may not take a modern deadbolt without real carpentry. That local troubleshooting matters, and it’s why customers here call us back for lock changes, rekeying, and deadbolt installations on their next project.
Locked Out of Apartment in South San Francisco
Locked Out of Apartment in South San Francisco usually happens at the worst possible moment: before work, after a grocery run, or in the middle of a foggy night when the key snaps in a corroded exterior deadbolt. When you call us, the first thing we do is give you an honest assessment over the phone. A typical residential lockout in South San Francisco runs $75 to $165, depending on the lock type and whether a key is broken inside. The total you’re quoted before dispatch is the total on your invoice, no arrival fee tacked on after the fact.
Most apartment lockouts in this city do not require drilling. Our technicians carry non-destructive entry tools and penetrating lubricants that free seized cylinders and fish out snapped keys without destroying door hardware. That matters in South San Francisco, where many apartment doors are original 1950s and 1960s units no longer manufactured.
Non-Destructive Entry First
We always attempt a pick, a bypass, or a broken-key extraction before we ever consider drilling. Drilling a lock means replacing it, and on older South San Francisco doors, a replacement may not sit flush in the existing mortise. We’d rather spend ten minutes finessing a cylinder than leave you with a patched door that never latches right.
When Rekeying Makes More Sense Than Replacement
After a lockout, many South San Francisco renters ask us to rekey the lock rather than replace the whole assembly. On most pin-and-tumbler cylinders, rekeying is fast and costs $35 to $65 per lock. You keep the original hardware, which is often better built than anything on a big-box shelf today, and you get fresh keys that invalidate any old copies floating around.
Apartment Locksmith in South San Francisco
Apartment Locksmith work in South San Francisco covers a lot more than lockouts. The apartment buildings around top of Grand Avenue, up the hill from downtown, run a steady cycle of tenant turnover that demands rekeys, key control audits, and hardware upgrades to meet building codes. If you manage a four-unit building in Paradise Valley or a larger complex near Tanforan, we can rekey every exterior and unit door the same day, issue a new master-key system if needed, and provide a written key-control record for your files. Rekeying an apartment unit typically runs $35 to $65 per lock, and we quote the full job in writing before we touch the first cylinder.
Many older apartment buildings in South San Francisco still have original mortise locks, and the good news is most of those cylinders rekey cleanly with fresh pins and tumblers. We carry a selection of replacement mortise cylinders for older formats, so a worn-out lock does not have to become a door-replacement project.
Rekeying Between Tenants
Between every tenant, the Code Enforcement Division of South San Francisco expects rental units to have functioning locks, and smart landlords rekey regardless of how trustworthy the previous tenant seemed. We handle these rekeys in batches for properties across Sunshine Gardens and the rental pockets near El Camino Real, and we document the work so there’s a paper trail of key control.
Lock Changes and Hardware Upgrades
A lock change in South San Francisco runs $95 to $210 per lock including hardware and labor, depending on whether we’re installing a standard knob set, a Grade 1 deadbolt, or a keypad deadbolt. If the door itself has warped, which happens constantly in this fog belt, we’ll realign the strike plate or resize the mortise so the deadbolt actually throws and latches securely. A new lock bolted to a warped door is just a locked door that looks secure.
Trusted Brands We Service in South San Francisco
Our Residential Locksmith team is factory-authorized to install and service Schlage, Kwikset, Medeco, and Abloy hardware, so your warranty stays intact and parts arrive without cross-country delays. In South San Francisco, we keep a rolling stock of common Schlage and Kwikset cylinders, Medeco high-security keyways, and Kwikset SmartKey rekey kits in our local service vehicles. If your Paradise Valley home runs a Medeco restricted keyway, we can cut new keys on-site and keep your key-control records up to date. For most standard South San Francisco homes, a Schlage single-cylinder deadbolt combined with a Kwikset knob set gives you reliable security without overbuilding your door.
Common Residential Locksmith Problems We See in South San Francisco Homes
- Salt-fog seized deadbolts. South San Francisco sits in a wind funnel between San Bruno Mountain and the coastal hills, so salt-laden marine air pushes through Sunshine Gardens and Paradise Valley nearly every afternoon. Exterior deadbolts and strike plates corrode years earlier than identical hardware in San Mateo, and we regularly extract snapped keys from cylinders that rusted from the inside out.
- Original 1940s-1960s mortise locks. The tract homes off El Camino Real and the hillside streets of Sunshine Gardens were built fast after WWII, and many still have their original mortise assemblies. These locks are not obsolete junk. Most rekey cleanly, and we’d rather restore one than sell you a latchset that never fits the mortise pocket.
- Warped entry doors that won’t latch. Decades of moisture swings in the fog belt twist original wood doors out of square. A deadbolt that sticks every May is usually a strike-alignment problem, not a lock problem. We realign the strike and free the bolt before we ever talk about replacing hardware.
- High tenant turnover rekey fatigue. Rental units near Sign Hill and downtown South San Francisco change hands constantly. Landlords who wait years between rekeys are handing out keys to people they can no longer account for. A $45 rekey per lock is cheap insurance against a security lapse that no insurance adjuster will overlook.
Pricing for Residential Locksmith in South San Francisco, CA
You deserve to see the numbers before you commit, so here they are for South San Francisco. A standard residential lockout runs $75 to $165. Rekeying a typical knob or deadbolt runs $35 to $65 per lock. Lock changes including new hardware run $95 to $210 per lock, depending on the grade and whether we need to re-cut a mortise or realign a strike. Deadbolt installation on a standard door runs $60 to $140, plus the cost of the deadbolt itself if we’re supplying it. The price we quote on the phone is the price on your invoice, full stop. No dispatch surcharge, no arrival fee, no ballooning after the fact. Call (910) 714-4287 for a free estimate on your South San Francisco job.
We Also Serve Cities Near South San Francisco
South San Francisco sits between Brisbane to the north and San Bruno to the south, with Daly City up the hill and Millbrae just past the bay edge. We serve all of them, and our crews cross these city lines daily. If your brother in San Bruno needs a rekey after a tenant screwup, or your daughter in Daly City locked herself out of her apartment, the same background-checked technician can reach them faster than a new company could learn the address.
Serving South San Francisco, CA - Our Local Coverage Area
We’re based in the South 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 South San Francisco
Most 1950s mortise lock cylinders in South San Francisco can be rekeyed for $35 to $65 per lock, and we recommend trying that before replacement. The original mortise bodies are often heavier than anything made today, and a rekey with fresh pins restores security without destroying the hardware. If the cylinder itself is cracked or the bolt is seized beyond repair, we’ll source a compatible replacement rather than forcing a modern deadbolt into a door that was never milled for one. Call (910) 714-4287 and describe your lock, we’ll tell you what it actually needs.
The salt-laden marine air that sweeps through South San Francisco every spring corrodes deadbolt internals faster than inland hardware. Your cylinder and bolt are likely rusting from the inside, and each May the buildup reaches the point where the key won’t turn. The fix is usually a teardown, cleaning, and lubrication of the internal pins, which runs $60 to $110. If the cylinder is too far gone, a rekey or cylinder swap restores smooth operation without replacing the whole deadbolt. We recommend a penetrant treatment every couple of years on fog-facing doors in Sunshine Gardens and Paradise Valley.
No, drilling is our last resort, not our first move. Nearly every apartment lockout in South San Francisco can be resolved with non-destructive entry tools, broken-key extractors, or a bypass of the latch. Drilling only happens when a cylinder is destroyed or frozen beyond recovery, and even then we’ll tell you the cost in writing before we start. Our technicians carry penetrating lubricants that free most salt-seized cylinders in minutes.
Yes, but the door has to be addressed first. A smart deadbolt bolted to a warped 1950s door will jam within weeks because the bolt and strike no longer align. We can re-hang the door, re-cut the strike, or shim the hinges to square the frame before installing the smart lock, and that prep work usually runs $50 to $120 on top of the hardware. Once the door is square, we install Schlage, Kwikset, or other major-brand keypad locks and program them on the spot.
Every time a tenant moves out, no exceptions. In a high-turnover building near Sign Hill, that may mean rekeying a unit two or three times a year, and at $35 to $65 per lock, it’s the cheapest security control you have. We’ll issue fresh keys, update your key-control log, and give you a written record for the building file. No landlord has ever regretted a rekey they did; plenty have regretted the one they skipped. Call (910) 714-4287 to schedule rekeys for your South San Francisco building.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving South San Francisco through the Threshold Group since 2007.
Need a residential locksmith in South San Francisco today? Call (910) 714-4287 for a free written estimate. A live person answers, 24 hours a day, every day of the year.






