Rekey Locks in South San Francisco - Flat Per-Lock Price, Quoted on the Phone

Fast, Reliable Rekey Locks Across South San Francisco

Rekeying a lock in South San Francisco typically costs $85 – $150 per cylinder for standard pin and tumbler hardware, and $120 – $190 per cylinder for older mortise locks. That’s a written price, confirmed before our technician touches a single tool. Most rekey jobs in South San Francisco take 30 to 60 minutes once we’re at your door. Call (409) 405-4485 and you’ll speak to a live person who can quote the job over the phone, schedule a window that works, and send a background-checked, uniformed technician with a trackable arrival time.

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Why Preston Locksmith & Security Is South San Francisco’s Preferred Rekey Locks Company

The typical South San Francisco house was built between the 1940s and 1970s, and the locks on those doors weren’t designed for today’s key-control realities. We see the same pattern across Westborough, Old Town, and Lindenville: original hardware still in place, but key copies floating around from former tenants, contractors, or caregivers. Our team knows how to open those aging cylinders, pin them to a new key, and leave the trim and finish untouched. Kevin Yoon has led Preston Locksmith & Security since 2008, and the standard on every South San Francisco job is the same: written price first, live arrival tracking, before-and-after photos, and a 365-Day Done Right Promise if anything isn’t right.

We answer phones 24/7, which matters when you’re locked out of a Sunset Ave duplex at 11 pm or you need a rental unit rekeyed before a new tenant moves in off El Camino Real. You’ll never sit through a voicemail tree. You’ll never get a vague “tech will call you back.” You call, we pick up, you get a price.

Rekey Door Lock in South San Francisco

Rekey Door Lock work in South San Francisco usually means one of two things: a homeowner wants the locks changed after keys go missing, or a landlord needs a unit rekeyed between tenants in the 94080 zip code. The work itself is straightforward. We pull the cylinder, remove the old pins, insert a new set matched to your new key, reassemble the lock, and test it with both the new key and an old key to confirm the old one no longer turns. No new hardware. No patching the door. No mess.

After Key Loss or Staff Change

If a roommate moved out of a unit near South San Francisco High School or an employee left a business near Oyster Point and kept a key, rekeying is cheaper than replacing hardware and just as secure. We cut as many new keys as you need, on site, and every old key becomes useless the moment we finish. You don’t need new deadbolts. You need the pins inside them changed.

Before a New Tenant or Buyer Arrives

Landlords throughout South San Francisco rekey between every tenancy, and for good reason. Past tenants may have made copies at the hardware store on Grand Ave without telling you. A full Rekey Locks refresh before move-in costs far less than a security system and gives you documented key control from day one.

Rekey Service in South San Francisco

Rekey Service calls in South San Francisco span single-family homes in Terrabay, two-story duplexes in Paradise Valley, and small commercial storefronts along Airport Blvd. The process starts with a phone call: you describe the lock, we quote the price and the window. When the technician arrives, you’ll already have their name, photo, and live tracking link. Before anything is disassembled, you sign off on the written quote. That’s The Relay Visibility Guarantee, and it’s standard on every job we do here.

Same Day Scheduling and Early Evenings

We keep parts for Schlage, Kwikset, and Medeco cylinders on our trucks, so most South San Francisco rekey jobs don’t need a second visit. If you call before early afternoon, we can usually get a technician to your door that same day, including evenings, because people work at Genentech, Costco, and SFO’s support businesses and can’t always take a mid-day disruption.

Key Control for Multi-Unit Buildings

South San Francisco has a lot of 2-to-4 unit buildings, especially around the older neighborhoods east of El Camino Real. When one unit in a building has been rekeyed but others share the same keyway, you can end up with keys that overlap in ways you didn’t expect. We map the existing keying before touching the pins so every unit owner knows exactly which keys open which doors when we’re done. That planning step prevents the “new key opens the neighbor’s gate” situation.

Trusted Brands We Service in South San Francisco

Our South San Francisco technicians are trained on Schlage, Kwikset, Medeco, and Abloy hardware, from basic residential deadbolts on 1950s ranchers to restricted high-security commercial cylinders in office parks near Oyster Point. We stock common pins, springs, and tailpieces for these brands in our local trucks, which means we don’t need to run to a parts counter before finishing your job. If your lock is an aging Baldwin or a newer Yale smart lock with a physical key override, we can rekey the cylinder portion without disabling the electronic features you already use.

Common Rekey Locks Problems We See in South San Francisco Homes

• Corroded cylinders from coastal moisture. Fog pushes in from the Pacific and sits over South San Francisco neighborhoods, especially in the hills. That damp air leaves lock internals stiff or corroded, so a basic rekey without cleaning and lubricating the cylinder can leave you with a lock that works, but feels wrong. We clean and lubricate every cylinder we pin.
• Worn mortise lock bodies in mid-century houses. Homes built in the 1950s and 1960s around Magnolia Ave and surrounding streets often still have their original mortise locks. The cylinders can be rekeyed just like modern ones, but the internal parts are sometimes mismatched or worn, and need careful pinning rather than a fast cylinder swap.
• Keypad and gate lock overlap in multi-unit buildings. In buildings with exterior keypads or shared gate locks, rekeying one unit’s front door can create a key-control problem if that key also operated the gate. We check the whole keying scheme first, so you’re not left with a unit key that no longer works on the shared entrance.
• Builder-grade deadbolts that are still original. A surprising number of South San Francisco homes still have the original, low-cost deadbolts they were sold with. These can usually be rekeyed without issue, but we’ll also tell you honestly if the lock is so worn that a replacement cylinder would actually cost less over time than fighting the old one.

Pricing for Rekey Locks in South San Francisco, CA

We Also Serve Cities Near South San Francisco

While this page covers rekey work across South San Francisco, our technicians also handle rekeying in South San Francisco neighboring communities including Brisbane, Daly City, San Bruno, and Millbrae. The same pricing model, the same written guarantee, and the same live arrival tracking apply in every one of these cities. If you’re a few blocks over the line, call us and we’ll tell you straight whether we cover your street.

FAQs About Rekey Locks in South San Francisco