Smart locks
House lockouts
Re-keying
Deadbolt upgrades
Schlage
Kwikset
Car keys & fobsNon-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.
Get your free estimateLocksmith in Larkspur, CA
Most Larkspur locksmith calls come down to two things: someone needs a lock rekeyed after a move or a tenant change, or they’re locked out of an older home with hardware that doesn’t match anything on the shelf at a big-box store. Cypress Lock & Key has served Larkspur since 2017, working on the locks this town actually has, from original mortise locksets in 1920s bungalows to high-security deadbolts on newer hillside homes. Call (877) 265-4385 and you’ll talk to a technician who knows what a Larkspur door frame does after a wet winter.
Why Larkspur Homes Are Different
Larkspur sits in the sheltered Ross Valley, where damp winters and cool, foggy summers work on wooden door frames year-round. The older bungalows and Craftsman homes around town, many built between 1900 and 1940, still carry original mortise locksets and skeleton-key deadbolts. Those locks weren’t standardized the way modern Kwikset and Schlage hardware is, so a simple rekey often means sourcing reproduction parts or carefully retrofitting a modern cylinder into a door that’s been settling for 80 years.
We see the same pattern every wet season: the clay-rich soil under Larkspur shifts, doors settle, and strike plates drift out of alignment. A deadbolt that threw cleanly in September binds by January. Homeowners call thinking the lock failed, but usually the lock is fine, the door just moved. That’s a Larkspur-specific call, and it’s why a locksmith who only swaps hardware won’t fix the actual problem. You have to adjust the strike plate, sometimes shave the door edge, and then key the lock so it throws without force. We do all three on the same visit.
Downtown Larkspur adds another layer. The historic storefronts along Magnolia Avenue are a patchwork of original wood-framed doors with legacy locks that change from one business to the next. We regularly rekey commercial spaces there, and every job starts with figuring out what’s actually on the door before we touch a cylinder.
Styles & brands we work with







Our Main Larkspur Services
Two services dominate Larkspur calls: car key replacement for drivers whose key snapped or disappeared without warning, and emergency response for lockouts that never happen at a convenient hour. Here’s what each involves in Larkspur specifically.
Car Key Replacement in Larkspur
Larkspur drivers park on hills, in tight downtown spots, and sometimes in older garages that are barely wide enough for a modern car. Keys get dropped, snapped in locks, or left in places no one remembers. When that happens, you don’t need a tow to a dealership in another city. We come to your car in Larkspur, cut and program a new key on-site, and get you moving without the dealership markup or the wait. Our mobile equipment handles transponder keys and fobs, not just old-school metal blanks. Car Key Replacement in Larkspur is a faster, local alternative to the dealer, and we work on most makes without sending you anywhere else.

Emergency Locksmith in Larkspur
Locked out at 2 a.m. on a foggy Larkspur street, or standing in your driveway with groceries and a deadbolt that won’t turn, those are calls we’ve handled before and we’ll handle yours. Emergency response in Larkspur means getting to you fast and then working calmly on whatever’s actually wrong, whether it’s a lock that failed or a key that snapped in the cylinder. The older locks in this town fail in specific ways, and we’ve seen most of them. Emergency Locksmith in Larkspur means a real technician shows up, not a dispatch service that subcontracts to whoever’s available. Call (877) 265-4385 and you’ll reach our team directly.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Rekey Locks in Larkspur
Rekeying is the most direct security upgrade a Larkspur homeowner can make, and in a town with this many older homes it’s rarely a simple matter of swapping pins. When a 1920s Craftsman still has its original mortise lockset, rekeying means careful disassembly, matching spring-loaded pins to the existing keyway, and often fabricating or ordering reproduction parts that big-box stores don’t carry. Throw in Larkspur’s wet winters, where door frames swell and deadbolts bind, and a rekey job here almost always includes aligning the strike plate so the new key actually operates the lock without force. We rekey the lock you already have, which protects your budget and restores full function on hardware that’s often irreplaceable. Whether you’ve just closed on a house near the downtown core, a tenant moved out of your rental off Magnolia Avenue, or a set of keys has gone missing, rekeying is the smartest money you’ll spend on access control this year. Learn more about our Rekey Locks service, or keep reading for what it costs in Larkspur.
Lock Rekey
Signs you need it
You’ve moved into a new home and can’t account for every key a previous owner, contractor, or agent ever held.
What it costs in Larkspur
A standard lock rekey in Larkspur typically runs $65 to $180 depending on the number of locks and whether they’re standard pin tumbler cylinders or older mortise locksets.
How we do it
We remove the lock cylinder, replace the pins to match a new key, reassemble the lock, and test it in the door, then adjust the strike plate if Larkspur’s seasonal door shift has thrown off the alignment.
Rekey Door Lock
Signs you need it
One lock stopped working after a wet winter, or you want every exterior door to work from a single key instead of carrying a ring of four different ones.
What it costs in Larkspur
Expect $65 to $180 per door in Larkspur, with older mortise locks on the upper end because the cylinder often needs extra disassembly and care.
How we do it
We assess the existing hardware, match the new key to the lock’s specific keyway, rekey the cylinder, and confirm the deadbolt throws cleanly with the door fully latched, adjusting the strike plate as needed.
Keyed Alike
Signs you need it
You carry separate keys for your front door, back door, side gate, and garage, and you’d rather have one key open everything.
What it costs in Larkspur
Keyed-alike service in Larkspur typically falls between $65 and $180 for the first lock plus $15 to $35 per additional lock, depending on whether the cylinders are standard Schlage or Kwikset or something older.
How we do it
We rekey each cylinder to the same biting, confirm all locks share the same keyway, and test the single key across every door and lock you want included.
What Rekey Locks Costs in Larkspur
| Item | Typical range in Larkspur |
|---|---|
| Standard lock rekey (per lock) | $65 – $180 |
| Additional locks keyed alike | $15 – $35 per lock |
| Mortise lockset rekey (older Larkspur homes) | $120 – $180 per lock |
How much will a rekey actually cost in Larkspur?
The price depends on how many locks you have and what kind they are. Standard Schlage and Kwikset locks run lower, original mortise locks run higher. You’ll get the full price on the phone before we dispatch.
Is the price you quote on the phone the final price?
Yes. We quote the full job cost before anyone is sent out, and that’s the number on your invoice. No call-out fee added when the tech arrives. Call (877) 265-4385 for a firm quote.
Brands We Service in Larkspur
We work on the lock you already have, and in Larkspur that spans more than the usual entry-level hardware. Our technicians carry parts and key blanks for Schlage, Kwikset, Baldwin, Yale, Sargent, Medeco, Mul-T-Lock, and Abloy. On a rekey or repair job we’ll often match Mul-T-Lock, Sargent, or Abloy hardware same-day from stock on the van, which matters when a commercial storefront downtown can’t wait for a special order. See our brands for the full list and what we stock locally.
Pricing for Locksmith in Larkspur, CA
| Service | Typical range in Larkspur |
|---|---|
| Lock rekey (per standard lock) | $65 – $180 |
| Additional locks keyed alike | $15 – $35 per lock |
| Mortise lockset rekey (older homes) | $120 – $180 per lock |
| Rekey door lock (per door) | $65 – $180 |
| Car key replacement | $150 – $400+ |
| Emergency lockout response | $75 – $250 |
What pushes a Larkspur job higher is almost always the age of the hardware. An original mortise lockset on a 1920s bungalow takes more time and often needs a replacement part sourced before the rekey can happen. Our phone quote is the full price, quoted before anyone is dispatched, and it’s the price on your invoice. No arrival surcharge.
Neighborhoods We Serve in Larkspur
Cypress Lock & Key covers all of Larkspur, including ZIP codes 94939 and 94977. We work the residential streets throughout the Ross Valley corridor and the commercial strip along Magnolia Avenue.
- Downtown Larkspur corridor (Magnolia Avenue area)
- Baltimore Park
- Madrone Canyon
- Palm Hill
- Murray Park
Response across Larkspur is typically fast, and we know the older pockets where parking and street access slow things down, which we factor into every dispatch rather than finding out on arrival.
Service Area – Cities Near Larkspur
Our team also covers the communities around Larkspur in the Ross Valley and along the 101 corridor, including Corte Madera, CA, Kentfield, CA, Ross, CA, and Mill Valley, CA. If you’re just over a city line or managing rental properties across several Marin towns, call us and we’ll get a technician to you.
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 Locksmith in Larkspur
For emergency lockouts, we dispatch immediately and Larkspur’s compact geography works in your favor. Most calls are reached quickly, including the hillside streets. Call (877) 265-4385 and we’ll give you a realistic arrival window before we head out.
No. Rekeying locks and replacing hardware on an existing door does not require a permit in Larkspur. The older Craftsman homes sometimes have historic design guidelines for exterior changes, but interior lock work and standard rekeying is straightforward. We’ll flag anything unusual before we start.
Yes. We rekey rental units between tenants throughout Larkspur and handle commercial rekeying along Magnolia Avenue and the surrounding downtown blocks. Multi-lock scheduling is available, and we quote per lock so property managers know the full cost before we arrive.
Need a rekey, a car key, or someone to get you back inside right now? Call Cypress Lock & Key at (877) 265-4385 for a free estimate. We’ve served Larkspur since 2017, and the phone quote is the price you’ll pay, no surprises.
What happens when you call
- 1A real person answersNo phone trees — talk to a local locksmith pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Larkspur Customers Say
"Locked out at eleven at night with a kid asleep in the car. He was there in 25 minutes, had the door open in under two, and did not do the thing where the price goes up once he's standing in front of you."
— Allen Chen"Commercial job, panic bar and a master key system for a small office. Clean install and clear documentation of which key opens what."
— Sofia Hernandez"Installed a smart lock and actually set up the app and the codes with me instead of leaving me to figure it out from a leaflet."
— Renee Doyle