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 Lorenzo
If you’re locked out of your house off Via Arriba or standing at a door on Bockman Road with a deadbolt that won’t turn, here’s the short version: a residential locksmith can usually reach most San Lorenzo homes in 30 to 45 minutes, and the written price lands before anyone leaves the shop. Most lockouts in San Lorenzo open without drilling, most rekeys run $95 to $160 per cylinder on these older tract doors, and a deadbolt install on a 1960s steel entry door typically runs $180 to $340 depending on the prep work. Call (409) 405-4485 and you’ll get a live person, a real arrival window, and a price that does not change when the van pulls up.
We work on San Lorenzo’s housing stock every week, so we know what’s behind most of these doors before we knock. Slab-on-grade ranches, original mortise locks, steel entry doors with hairline rust around the strike plate. The lock is rarely the only thing that needs attention. We quote the repair path that matches what’s actually installed, not what a generic national call center assumes is there.
Key Takeaways
- Written price before dispatch: the figure we quote on the phone is the figure on the invoice. No dispatch fee tacked on at your door.
- Most San Lorenzo lockouts are non-destructive: a worn Schlage or Kwikset cylinder usually opens without drilling, saving you the cost of a new lock.
- Rekey on 1970s mortise hardware: we rebuild the pins and springs inside the original body rather than forcing you into a replacement that may not fit the door prep.
- Background-checked, uniformed tech: you see a name and a face before the van arrives, and before-and-after photos on every job.
- 365-Day Done Right Promise: if it’s not done right, we make it right, backed by a written guarantee stamped on every repair.
Why Preston Locksmith & Security Is San Lorenzo’s Preferred Residential Locksmith Company
We’re not a dispatch service that hands your call to whoever is nearby. Preston Locksmith & Security has been doing residential lock work since 2008, and our Bay Area office coordinates every San Lorenzo job with a background-checked, uniformed technician whose name you get before the van leaves. When you call, a live person answers. No voicemail tree, no “someone will call you back in 45 minutes.” That matters at 10 p.m. on Grant Avenue when you’re standing on your porch in the marine layer trying to figure out which neighbor has a spare key.
Every job in San Lorenzo carries The Relay Visibility Guarantee. Your price is in writing before any work starts. You get a live trackable arrival time, the same way you’d track a rideshare. The tech photographs the lock before and after, so you see exactly what changed. And the written guarantee stays with the invoice. We don’t describe ourselves as “trusted” and move on. We point to specific things: the written price, the live arrival link, the photo record, the 365-Day Done Right Promise. That is the entire trust model.
Kevin Yoon leads our technical standard across Bay Area residential work. Every San Lorenzo job is dispatched and scheduled from our Bay Area office, but the tech who shows up knows these streets and these lock problems. That combination – real accountability plus local recognition – is why our San Lorenzo callbacks are the exception rather than the rule.
Deadbolt Installation in San Lorenzo
Deadbolt Installation in San Lorenzo almost always comes with a twist that national averages ignore: the door prep from the 1960s and 70s doesn’t match modern ANSI Grade 1 bolts. Many of these steel entry doors have a 1-1/2 inch bore and a worn, undersized strike that was fine for the original Kwikset but will not seat a Medeco or Baldwin high-security deadbolt cleanly. So a real deadbolt install here is less about screwing in a new lock and more about prepping the door face, chiseling the strike mortise slightly deeper, and sometimes adding a reinforced strike plate with screws that reach the stud. We quote that as part of the job. It is not a surprise add-on when the tech is already inside.
When San Lorenzo homeowner needs this: you’ve moved into a house on Via Manzanas and you don’t know who still has a key from the last three owners. Or you came home one evening and noticed the bolt only throws halfway. Or a landlord just told you the unit was never rekeyed after the previous tenant left. Any of those is a deadbolt replacement or addition call, and it is one we’d rather do before you lose the ability to lock the door at all.
Expect honest San Lorenzo pricing here. A standard single-cylinder deadbolt replacement on an existing bore runs $180 to $260 installed. Add a reinforced strike plate and longer screws: roughly $40 to $65 more. If the door has no existing deadbolt bore and we’re drilling fresh prep into a steel door, the job typically lands between $260 and $340. Every price is confirmed in writing before we start, and you approve it from your phone.
Single-Cylinder vs. Double-Cylinder
Most San Lorenzo ranches do fine with a single-cylinder deadbolt: key outside, thumb turn inside. Quick to exit in an emergency. We only suggest a double-cylinder when the door has glass panels within 40 inches of the lock, because a burglar can break the pane and reach the thumb turn. On those, expect $20 to $40 more than the single-cylinder range, and we’ll talk you through the fire-safety tradeoff before installing anything.
Reinforced Strike and Door Jamb
The deadbolt is only as strong as the strike plate behind it. In San Lorenzo’s older homes we often see a striker held by two half-inch screws into soft door jamb. One solid kick and the door opens no matter how expensive the deadbolt was. We carry hardened strike plates and 3-inch screws that anchor into the stud. That upgrade is the cheapest security improvement you can make on a 1970s entry door.
Locksmith Key Replacement in San Lorenzo
Locksmith Key Replacement in San Lorenzo usually means one of three things: you lost a key and need a working copy cut from the original, the key snapped off in the cylinder, or the key you have is so worn it won’t reliably turn the pin and tumbler inside a 50-year-old mortise lock. The first is a quick cut and code read at $12 to $20 per key. The second is an extraction, and on a San Lorenzo door with a rusted cylinder, that extraction often turns into a cylinder rebuild we do on the spot. The third is where our local knowledge matters: on Via Alamitos Court we handled a late-evening call where the front door’s original Schlage pin and tumbler deadbolt had worn so far that the key would not turn; our tech used non-destructive entry, then rebuilt the lock cylinder and rekeyed it to the owner’s new key, leaving the original steel door and hardware in place. The whole job was done at the price we agreed by phone before we left the shop.
When a San Lorenzo homeowner should replace keys rather than rekey the lock: you’ve made four copies at a kiosk and none of them works smoothly. The kiosk blade is slightly out of spec, and the worn cylinders in older Kwikset and Yale hardware reject it. We read the original key code, cut fresh keys to factory depth and spacing, and test them in the lock before we leave. Those keys turn on the first try.
Replacement key pricing in San Lorenzo runs $12 to $20 per standard key when cut from an existing working key. Code-cut keys from the lock itself run $25 to $35 per key. If the key snapped in the cylinder, add $45 to $75 for extraction and cylinder service. All of it is quoted before we touch the door.
Key Cutting by Code vs. Copy
Copying a worn key just reproduces the wear. That’s why your “new” key still sticks. Code cutting reads the depth and spacing from the original factory numbers stamped on the lock or the key, so you get a fresh key to original spec. For San Lorenzo homes whose keys are 20 years old, that difference is the difference between a key that works and one you still have to jiggle.
Smart Lock Rekey vs. Key Replacement
If you have a keypad or smart lock, you may not need a key replacement at all. We can delete old user codes, add new ones, and generate a fresh physical key for the backup cylinder. Most San Lorenzo calls for “key replacement” on a smart deadbolt end up being a 20-minute rekey plus code reset, usually $85 to $150 total. Cheaper than a hardware store replacement and done at your door.
Trusted Brands We Service in San Lorenzo
We stock cylinders, pins, tailpieces, and strike hardware for the brands already common in San Lorenzo homes, and we service what your house actually has. That means Schlage and Kwikset from the original 1970s installs, plus Medeco, Yale, and Baldwin for homeowners who have upgraded to high-security or builder-grade decorative hardware. We don’t carry one brand of everything and then tell you your old lock is “too outdated” to fix. If a Medeco cylinder needs a new sidebar or a Baldwin mortise body needs fresh springs and pins, we bring the parts. That keeps turnaround fast on these San Lorenzo tract homes where the original hardware is often worth keeping.
Common Residential Locksmith Problems We See in San Lorenzo Homes
- Worn pin and tumbler cylinders on original 1960s-70s deadbolts. Thirty or forty years of daily key turns, plus dust and the salt air that pushes in from the Bay, grinds the pin chambers down until the key jams or won’t turn. We rebuild the cylinder and rekey it in place.
- Mortise lock bodies on steel entry doors that previous handymen ignored. Many San Lorenzo slab-on-grade houses have original mortise locks set into the door’s edge. A handyman who doesn’t know mortise mechanics will tell you to replace the whole door. That’s wrong. We service the body, swap springs, and rekey to new keys.
- Rusted strike plates and short screws from decades of damp winter mornings. San Lorenzo gets the marine layer and morning condensation for months at a time, and the cheap steel in original strike plates eventually corrodes. The lock still works but the plate pulls loose. We replace the plate and anchor it properly.
- Smart lock installs that don’t fit older door prep. A homeowner buys a smart deadbolt online, unboxes it, and finds the existing bore is a quarter inch too small or the door thickness exceeds what the tailpiece can reach. We adapt the prep and the hardware, and we quote that fitting work before we start.
Pricing for Residential Locksmith in San Lorenzo, CA
Here’s what San Lorenzo homeowners actually pay, stated as ranges rather than mystery math. A standard lockout with non-destructive entry runs $85 to $145. Rekeying runs $95 to $160 per cylinder on standard Schlage or Kwikset pin-and-tumbler locks, and $140 to $220 per cylinder when the original mortise body needs pins, springs, and a fresh cylinder rebuild. Deadbolt installation runs $180 to $340 depending on door prep and hardware grade. Key replacement runs $12 to $20 per key from an existing working key, or $25 to $35 for code-cut keys. Window lock replacement or installation runs $35 to $85 per window. Door reinforcement, including a new strike plate and 3-inch screws, typically adds $40 to $65 to any deadbolt job. The number you approve on the phone is the number on the invoice. There’s no call-out surcharge added when the van arrives. Call (409) 405-4485 and we’ll walk you through the exact price for your lock and your door.
We Also Serve Cities Near San Lorenzo
Our Bay Area dispatch covers more than just San Lorenzo. We regularly cross into San Lorenzo neighboring communities for the same written-price, trackable-arrival service, including Castro Valley, San Leandro, Union City, and Oakland. If you live in one of those surrounding cities, the process is identical: live person on the phone, written price before dispatch, background-checked tech at your door. You can also read about our full Residential Locksmith service line for details on what we handle beyond this area.
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 Residential Locksmith in San Lorenzo
You’ll get the technician’s name and a live trackable arrival link before the van leaves our Bay Area office. The tech arrives in uniform, shows a Preston Locksmith & Security ID, and the price was already sent to your phone in writing before any tools came out. Before-and-after photos of the lock are part of every job, so you’re never guessing who did what. If anything doesn’t match what we told you on the phone, call (409) 405-4485 while the tech is there and we’ll square it immediately.
Yes. That’s the whole point of The Relay Visibility Guarantee. We ask you a few questions about the lock, the door, and what the failure looks like, then we send you a written price range that locks into a firm quote once the tech sees the hardware. Nothing gets added at the door. No dispatch surcharge, no “trip fee” materializing after the fact. The price you approve is the price on the invoice. Call (409) 405-4485 and we’ll tell you exactly what the job should cost before we ever send a van.
Yes, and that’s often the better call. These 1970s Schlage and Kwikset deadbolts were built with serviceable pin and tumbler internals, and we rebuild and rekey them in place for $140 to $220 per cylinder depending on condition. You keep the original steel door, the original hardware, and the money you’d have spent replacing a lock that didn’t need replacing. We’ll tell you honestly if the lock is too far gone to be worth it, but in most San Lorenzo homes it isn’t.
We do, and we quote the fitting work upfront because these 1960s and 70s steel doors usually need prep before a smart lock sits flush. The bore may need to be enlarged slightly, the strike may need deepening, and the door thickness sometimes requires a longer tailpiece than what’s in the box. That adaptation runs $180 to $340 for a deadbolt-grade smart lock install, including the prep, and we program the codes with you on site. You’re not left with a box of parts and a YouTube video.
First we try non-destructive entry. Most of the lockouts we handle on San Lorenzo’s slab-on-grade ranches open in 10 to 20 minutes using bypass tools that don’t damage the lock or the door. If the cylinder is too worn or the door has a secondary latch in play, we then talk to you about the options before anything gets drilled. You get the price and the plan before we escalate. A typical non-destructive lockout in San Lorenzo runs $85 to $145, and you’ll know the cost before we touch the lock. Call (409) 405-4485 from the porch if you’re standing there now.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving San Lorenzo since 2008.