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 Rekey Locks Across San Lorenzo
Rekeying a lock in San Lorenzo typically runs between $95 and $160 for the first cylinder and $20 to $30 for each additional cylinder matched to the same key. That is the honest range before anyone shows up at your door, and the number we quote on the phone is the number on your invoice. Most rekey jobs in San Lorenzo neighborhoods like San Lorenzo Village and the blocks off Bockman Road take under an hour once our tech arrives. Call (409) 405-4485 and you will get a live person, a written price, and a trackable arrival window, not a four-hour waiting game.
Why Preston Locksmith & Security Is San Lorenzo’s Preferred Rekey Locks Company
San Lorenzo’s housing stock was largely built in the 1950s and 1960s, and the locks on those doors were not designed for modern key control. We have seen enough original Schlage and Kwikset pin and tumbler cylinders on local ranch-style homes to know exactly what happens when a tenant moves out or a family member’s key goes missing. The job is rarely as simple as swapping a whole lock, and we will tell you that honestly before quoting work.
Kevin Yoon, the owner behind Preston Locksmith & Security, runs every San Lorenzo job through the same process: a written price before work starts, a background-checked tech in uniform, and the 365-Day Done Right Promise on every repair. We do not send an anonymous subcontractor in an unmarked van. We send someone with a name, a company ID, and a live arrival time you can track on your phone. That matters when you are handing over the keys to every door in your house.
San Lorenzo customers call us because the Rekey Locks work we do is priced in writing before dispatch. No teaser numbers. No “we’ll see when we get there” pricing. If you are near Hesperian Boulevard or up toward the hills off Lewelling, the process is the same: call, get a flat per-cylinder price, and approve the work before the tech leaves our van.
Lock Rekey in San Lorenzo
Lock rekey in San Lorenzo typically means pulling the cylinder from an existing deadbolt or knob, swapping the internal pins so the old key stops working, and cutting a fresh set of keys. It is not a replacement. The hardware stays on the door, which matters when you live in a 1950s ranch on a slab foundation and the original brass hardware still matches the door. A standard single-cylinder deadbolt rekey in this area runs about $95 to $160, with additional locks matched to the same key running roughly $20 to $30 each.
We see two distinct types of lock rekey work here. The first is the straightforward job: a newer Schlage or Kwikset deadbolt on a front door, a fresh keyway, done in about twenty minutes. The second is the San Lorenzo special: an older mortise lock body or a builder-grade deadbolt that has been on the door since the Eisenhower administration. Those take longer, not because we are slow, but because the internals need to be disassembled carefully and inspected before new pins go in.
Rekeying Original Hardware on 1950s and 1960s Doors
If your home near Via Alamitos still has its original locks, the cylinder is likely worn enough that modern bump-resistant pins will not seat cleanly. We will tell you that before we take the lock apart, and we will give you a written price that reflects the extra labor, not a surprise line item added after the fact.
After a Tenant or Roommate Moves Out
This is the most common call we get in San Lorenzo Village. A tenant leaves, and the landlord has no idea how many copies of the key are floating around. We rekey every exterior lock to one fresh key so the old copies become useless paperweights.
Locksmith Rekey in San Lorenzo
Locksmith rekey in San Lorenzo is the same physical job, but the value is in the planning: matching multiple doors to one key, spotting worn cylinders that will fail soon, and quoting the whole scope in writing before the first tool comes out. A locksmith rekey on a front door plus a side door and a garage entry typically runs $135 to $220, depending on how many cylinders are involved and whether we need to rekey a high-security brand like Medeco or Yale.
We had a job recently near Via Alamitos in the San Lorenzo Village area where a homeowner needed a tenant-related rekey on an original Schlage pin and tumbler deadbolt. Not a replacement. We pulled the cylinder, matched the existing keyway, repinned it to a fresh two-key set with key control, and the old keys stopped turning. The door hardware stayed original. The homeowner stood at the door and watched the entire rekey before we packed up.
Rekeying Multiple Locks to One Key
If you have three exterior doors with three different keys, we can pin them all to match a single key while keeping the original hardware. This is the most cost-effective way to simplify key management without buying new locks.
High-Security Cylinder Rekey
If your house has Medeco, Mul-T-Lock, or Abloy cylinders, rekeying is not a quick pin swap. We are trained on those keyways and will quote the per-cylinder cost up front, including any restricted key blank fees. No surprises after the cylinder is on the bench.
Trusted Brands We Service in San Lorenzo
We work on the hardware San Lorenzo homes actually have, which means a lot of Schlage, Kwikset, and Yale, plus Medeco on the high-security end. Our techs stock common pins, springs, and key blanks for these brands in the van, so most rekey jobs are completed in one visit. If we need an unusual blank or a replacement cylinder, we source it locally and schedule the follow-up before we leave your driveway. We do not rekey locks we are not trained on, and we will tell you that plainly if your hardware falls outside what we service.
Common Rekey Locks Problems We See in San Lorenzo Homes
- Original 1950s and 1960s cylinders that reject modern pins. San Lorenzo’s slab-and-stucco ranch homes often still carry their original mortise lock bodies or first-generation deadbolts. The internal walls of these cylinders wear unevenly over sixty years, and standard bump-resistant pins can bind or fail to seat, which means a clean rekey requires careful disassembly and sometimes a cylinder rebuild.
- Teaser phone prices that change at the door. This trade has a bait-pricing problem, and San Lorenzo homeowners get hit with it regularly. The caller is quoted $19 or $29 over the phone, then told the real price is three or four times that once the tech arrives, because the lock was “more complicated.” Our price is tied to the actual cylinder type you describe on the call, and it is locked before dispatch.
- Assumed replacement when a rekey would do. We see homeowners spend $200 or more on new hardware when their existing deadbolt only needed a pin and tumbler swap. A rekey costs $95 to $160 per cylinder here, and your original hardware stays on the door. We will tell you which job you actually need before quoting either one.
- Door alignment issues that make a fresh rekey feel broken. If your door has settled, as older San Lorenzo slabs do, a freshly rekeyed lock can feel stiff or balky even though the pins are correct. We check door alignment and strike plate clearance as part of the same visit, so you are not calling back two days later wondering why the key still sticks.
Pricing for Rekey Locks in San Lorenzo, CA
A standard lock rekey in San Lorenzo runs $95 to $160 for the first cylinder. Each additional lock matched to the same key adds $20 to $30. If your home still has an original 1950s mortise lock or a worn builder-grade deadbolt, expect the high end of that range because of the extra disassembly and inspection time. High-security cylinders like Medeco or Mul-T-Lock run higher, and we quote those per cylinder after you describe the hardware. The price we give you on the phone is the price on the invoice. Full stop. Call (409) 405-4485 for a free estimate, and we will tell you the exact number before anyone is dispatched to your San Lorenzo address.
We Also Serve Cities Near San Lorenzo
We handle rekey jobs in San Lorenzo neighborhoods daily, and our crews also cover Castro Valley, San Leandro, Union City, and Oakland. Scheduling and dispatch are coordinated from the brand’s San Francisco Bay Area office, with techs serving San Lorenzo locally. If you are just over the border in any of those nearby cities, the same written-price process applies.
Serving San Lorenzo, CA - Our Local Coverage Area
We’re based in the San Lorenzo 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 Rekey Locks in San Lorenzo
Yes. The price you hear on the phone is the price on the invoice, and we do not add a call-out surcharge when the tech arrives. You will get a written quote tied to the lock cylinder type you describe, and we confirm it with you before any work starts. Call (409) 405-4485 to get your exact number.
In most cases, yes. Original mortise lock bodies from that era can be rekeyed if the internal cylinder is not cracked or severely worn. We will inspect the lock on site, give you a written price for the rekey, and tell you plainly if replacement is the better call. The decision is yours, but you will know the cost of each option before we touch the door.
A standard single-cylinder deadbolt rekey takes about twenty to thirty minutes from arrival to finished key. Original 1950s hardware and mortise locks take longer, usually forty-five minutes to an hour, because the cylinder requires careful disassembly. We will give you a realistic time estimate when you describe your locks on the phone.
Every Preston Locksmith & Security tech arrives in uniform, carries a company ID, and shows up within a live trackable arrival window you can follow on your phone. We send before-and-after photos of every job, and our 365-Day Done Right Promise means if the rekey is not done right, we come back and make it right at no charge. The person at your San Lorenzo door is the same person whose name and photo we provided before dispatch.
Yes. We rekey every exterior lock to match a single key, usually for $20 to $30 per additional cylinder after the first. This is the cheapest way to go from a keyring full of different keys to one key that opens every door. We will quote the full per-cylinder price in writing before starting.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving the San Francisco Bay Area since 2008.






