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 Larkspur
Rekeying locks in Larkspur typically runs $25 – $40 per cylinder for standard Schlage and Kwikset hardware, and the whole job is usually done in under two hours once we’re at your door. You’ll get a written price before we dispatch anyone, a live arrival time you can track, and a 365-Day Done Right Promise behind the work. If you’re standing in a 1920s bungalow off Magnolia Avenue wondering whether your old mortise lock can be rekeyed without replacing it, the short answer is almost always yes. Call (409) 405-4485 and we’ll walk you through exactly what we’d do, what it costs, and when we can be there.
Why Preston Locksmith & Security Is Larkspur’s Preferred Rekey Locks Company
Larkspur’s housing stock doesn’t follow a single pattern. A Spanish bungalow from the 1920s with original mortise hardware sits three blocks from a 1990s build full of builder-grade Kwikset knobs, and both homeowners will call asking for the same thing: a Rekey Locks job. We treat those as two different projects because they are. The bungalow owner needs a non-destructive cylinder rekey that preserves the vintage escutcheon. The newer build likely needs six or seven cylinders done in one pass, keyed alike if the homeowner wants one key for everything.
Kevin Yoon leads our Bay Area crew, and he’s the one who signs off on the written guarantee that goes with every invoice. We send a background-checked, uniformed technician whose photo you’ll see before they knock. The Relay Visibility Guarantee means a written price before any work starts, a live trackable arrival time, before-and-after photos of every job, and a free second visit if a repair fails. No anonymous van, no price that changes once the drill comes out.
Rekey Service in Larkspur
Rekey Service in Larkspur means taking the cylinder out of your existing lock, swapping the internal pins, and cutting new keys so the old ones stop working. The hardware stays. Nothing gets replaced unless you ask us to. In a town where 1920s mortise locks rub shoulders with smart deadbolts from 2021, this is the cheapest way to regain control of who has access to your home. Standard residential rekeying in Larkspur runs $25 – $40 per cylinder, and we’ll confirm the written total before we send a tech.
Non-Destructive Mortise Cylinder Rekeying
Historic Larkspur bungalows often have original mortise locksets with worn pin and tumbler stacks. The cylinder slides out, we repin it, and it goes back in without touching the brass plate or the door itself. Typical cost: $45 – $75 per mortise cylinder. If another company tells you the lock is too old and needs replacing, get a second look from us first.
Multi-Cylinder Home Rekeying
Most Larkspur homes have three to six exterior cylinders: front door, back door, garage entry, side gate, maybe a deadbolt on the guest suite. We rekey all of them in one visit and can key them alike so a single key turns everything. For a four-cylinder job, you’re looking at roughly $100 – $160 total, written and confirmed before dispatch.
Keyed Alike in Larkspur
Keyed Alike in Larkspur is what we recommend for almost every multi-door home: one key operates the front deadbolt, the back door, the garage entry, and any side gate. No fumbling with a keyring at the back slider in the rain. We set the pins in each cylinder to match a single key code, so you carry one key and everything else goes in a drawer. Pricing for keying alike runs $30 – $45 per cylinder, which includes cutting the new matching keys.
Front Door and Back Door Matched
We got a call from a homeowner on Magnolia Avenue whose 1920s bungalow still had the original mortise lock on the front door with a worn pin and tumbler stack. Old keys were working in neighbors’ hands, which is not a thing you want to discover after ten years in a house. We rekeyed the cylinder non-destructively and keyed the back deadbolt alike to it, so one key covered both doors without touching the vintage escutcheon. Two hours, quoted before we left the shop, no surprise line on the invoice.
New Home Keying Alike
If you just closed on a house in Larkspur, the previous owner’s keys are out there. Keying every exterior lock alike on day one is the fastest way to reset security. Most houses take one visit, two to three hours, and a single written price.
Trusted Brands We Service in Larkspur
We’re equipped to service Schlage, Kwikset, Medeco, Yale, Baldwin, Mul-T-Lock, Sargent, and Abloy hardware, and we stock pins and cylinders for the brands Larkspur homes actually have. The 1920s front door is probably running Schlage or Baldwin. The back slider is Kwikset. The newer deadbolt on the garage is likely Yale. We bring parts for all of them, so you don’t wait for a second trip while a cylinder gets ordered. Medeco and Mul-T-Lock high-security cylinders take longer to repin, but we do those too, and we’ll give you the written price before starting.
Common Rekey Locks Problems We See in Larkspur Homes
- Original mortise locks getting a replacement pitch. Homeowners around downtown Larkspur and along Magnolia Avenue ask for a rekey on their original mortise lock and get a tech who wants to swap it for a modern deadbolt because the pin and tumbler work is fiddly. That’s a replacement quote disguised as a rekey, and it costs four to six times more.
- Mismatched brands across doors. Historic Larkspur bungalows often have one brand on the front, Schlage or Baldwin, and a builder-grade Kwikset on the back slider. A rekey done without checking both leaves a mismatched key situation the homeowner discovers the hard way, usually at night with groceries in hand.
- Phone quotes that are just guesses. Larkspur’s housing stock is so mixed that a phone quote given without knowing if it’s a mortise lock, a standard deadbolt, or a smart lock cylinder is meaningless. The guess is what shows up as a bait-and-switch on the doorstep. We ask before we quote.
- Worn pins causing key shifts. Larkspur’s marine humidity and cool evenings are easy on locks, but age does its own work. After 20 or 30 years, the pins wear down and keys that once worked smoothly start sticking or turning loosely. A proper rekey replaces the pin stack, which fixes the feel as well as the security.
Pricing for Rekey Locks in Larkspur, CA
Here’s our honest Larkspur pricing, no teaser rates and no call-out surcharge added when the tech arrives. Standard Kwikset or Schlage rekey: $25 – $40 per cylinder. Mortise lock cylinder rekey on older bungalows: $45 – $75 per cylinder. Keying multiple locks alike: $30 – $45 per cylinder, including new matching keys. Smart lock cylinders from Yale or Schlage Connect: $45 – $65 per cylinder. Key cutting is included with every rekey, and the total is written down before we dispatch anyone. That written number is the price on your invoice, guaranteed. Call (409) 405-4485 for an exact quote. Estimates are free.
We Also Serve Cities Near Larkspur
Beyond Larkspur, our Rekey Locks in Larkspur crew regularly handles jobs in Kentfield, Corte Madera, San Rafael, and Mill Valley. Same written-price guarantee, same live arrival tracking, same 365-Day Done Right Promise. If you’re a few minutes down the road, call and we’ll give you a real quote before we schedule anything. Larkspur is our home base for the Ross Valley corridor, and we know these streets.
Serving Larkspur, CA - Our Local Coverage Area
We’re based in the Larkspur 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 Larkspur
Almost always, yes. We remove the cylinder, repin it with a fresh pin stack, and reinstall it without touching the brass escutcheon or the door itself. That’s a $45 – $75 job on most Larkspur bungalows, and it preserves the original hardware while rendering every old key useless. Some locks are genuinely worn past the point of reliable rekeying, but that’s maybe one in twenty, and we’ll show you photos before recommending replacement. Call (409) 405-4485 and Kevin Yoon can tell you over the phone what to look for on your lock.
Yes, and that’s one of the most common jobs we do in Larkspur. We set both cylinders to the same key code so one key operates both doors, usually in 60 – 90 minutes on site. Pricing runs $30 – $45 per cylinder including the new matching keys. We’ll confirm the written total before we dispatch, and the price on paper is the price on the invoice.
You’ll see their photo, name, and live arrival time on your phone before they get there. Our technicians are background-checked, uniformed, and carrying a written quote that already matches what we told you on the phone. If the person at the door doesn’t match the photo in the link we sent, don’t open it. Call us at (409) 405-4485 and we’ll verify. That’s part of The Relay Visibility Guarantee: you know who is coming, what they look like, and when they will arrive before they knock.
If your locks work fine and you just want old keys stopped, rekeying is almost always the right call, at $25 – $40 per standard cylinder. If the lock is physically failing, the bolt won’t throw, or the cylinder turns loosely, replacement makes more sense. In Larkspur’s mixed housing stock, homeowners on the 1920s side of town usually rekey their original hardware, while those in newer builds sometimes replace a builder-grade Kwikset knob with a higher-quality Schlage deadbolt. We’ll give you a straight answer either way, and the written quote covers exactly what we’ll do. No upsell disguised as a rekey.
We carry pins and cylinders for Schlage, Kwikset, Medeco, Yale, Baldwin, Mul-T-Lock, Sargent, and Abloy. That covers the 1920s mortise lock on Magnolia Avenue, the Kwikset deadbolt on a 1990s backyard door, and the Yale smart lock a homeowner installed last year. If you have something unusual, tell us on the phone and we’ll confirm before we dispatch. Call (409) 405-4485 for a free estimate and a written price before we come out.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Larkspur and the Ross Valley since 2008.






