24/7 Mobile Locksmith · Currently dispatching in Marin
Marin Locksmith
MARIN LOCKSMITH 24/7 Mobile Locksmith
MARIN LOCKSMITH
Call (415) 340-1708
24/7 Mobile Locksmith in Marin

Transponder Key Programming
Chip Keys Cut & Coded while you wait.

Chip keys cut and programmed to your car's immobilizer on-site — starts the engine, not just the doors.

Serving Marin, Novato, Mill Valley & surrounding areas.

15-Min Avg. Arrival
Licensed #LCO8487
Upfront $29 Base Fee
No Damage Guarantee
★★★★★ 4.9
287+ Google Reviews
San Rafael Novato Mill Valley Sausalito Tiburon
+ all Marin County Serving Marin & all Marin County
Marin Locksmith cutting and programming a transponder chip key on-site in Marin
Marin Locksmith tech with branded van in Marin Dispatching in Marin 4.9
Serving San Rafael Novato Mill Valley Sausalito Tiburon + all Marin County
Sophia M.
★★★★★ "Showed up in 12 min at 1am." Sophia M. · San Rafael
Ethan T.
★★★★★ "Saved me $300 vs the dealer." Ethan T. · Novato
Maria B.
★★★★★ "Smart lock install, no upselling." Maria B. · Fairfax
Get a callback now

A real licensed locksmith calls you back in under 30 seconds.

No call center. No upselling. A Marin tech reads your address, confirms the price, and tells you exactly when they'll be on your driveway.

  • Locked car / house / business — back inside in 15 minutes
  • Lost car key — cut and programmed on site
  • Need a rekey or smart lock install — same visit, no callback
  • Just want a quote — flat number in writing, no pressure
Or call (415) 340-1708
⚡ 30-sec callback

Dispatch a Locksmith

A real licensed Marin tech will call you back. Average pickup: 23 seconds.

Sophia M.
★★★★★
"Showed up in 12 min at 1am. Lifesaver." — Sophia M. · San Rafael

You're dispatched.

A Marin Locksmith tech is calling you right now from a 415 number. Stay near your phone.

Or call (415) 340-1708
Licensed & Insured · LCO8487
15-Min Avg Response Time
4.9 / 5 · 287+ Reviews
All of Marin County
Why Marin chooses us

Three reasons people never call anyone else.

15min

Real arrival windows.

We track every van in real time. Dispatch confirms an exact ETA before you hang up — 15 minutes for most of Marin, slightly longer for the coast. Either way, no call-center estimate.

LCO8487

Licensed & bonded.

California-licensed locksmith, fully insured, every tech background-checked and badge-identified. We hand you the credentials before we touch a lock.

$29

Upfront, not surprise.

Your $29 base fee covers dispatch and the service call. You see the full price in writing before we start. No "actually that'll be $400."

Mobile locksmith services

Everything we handle in Marin, on one visit.

Every service below is a flat-rate, on-site fix. No two-visit games, no parts markups, no "we'll have to come back tomorrow."

Transponder chip keys

Transponder keys, cut and coded to your immobilizer.

Almost every car built since the late 1990s uses a transponder — a tiny chip in the key head that the immobilizer has to recognize before it will let the engine start. That's why a hardware-store copy turns the lock but won't crank the engine: it was never coded to your car. A real automotive locksmith cuts the blade and programs the chip so the key both unlocks and starts.

Marin Locksmith carries transponder blanks and factory-level programmers for most makes, so we make working chip keys on-site — a spare, a full replacement, or a key for a used car that only came with one. Same visit, no dealer appointment.

When you need a transponder key

  • A copied key unlocks the door but won't start the car
  • You're down to one chip key and want a spare
  • Lost the only transponder key you had
  • Used-car purchase came with a single key
  • The chip is damaged and the car cranks but won't start
  • You want a backup before the last key fails

What it costs in Marin

Transponder chip keys typically run $130–$280 cut and programmed on-site, depending on the make and chip type. High-security and laser-cut keys are at the upper end. The $29 base fee covers the trip and we confirm the all-in price before dispatch. License #LCO8487.

How transponder programming works

  1. Match the chip to your carWe confirm year, make, model and VIN so the tech brings the correct transponder blank and programmer.
  2. Cut the blade to codeThe key blade is cut to your vehicle's factory code so it physically works the door and ignition.
  3. Program the chipThe transponder is coded to your immobilizer so the engine recognizes it and actually starts.
  4. Verify start & remoteWe confirm the key starts the car (and the remote works, if it's a combo key) before handing it over.

Makes we cut chip keys for

We service Toyota, Honda, Ford, Chevrolet, Nissan, Tesla, Lexus, Subaru, Hyundai, Kia, BMW, Mercedes-Benz, Audi, Volkswagen, Jeep, Dodge, Ram, GMC, Mazda, Acura, Infiniti, Volvo and most other makes and models — foreign and domestic.

Recent work in Marin

Real Marin jobs from this month.

Real photos from real call-outs across Marin County. No stock images, no staged photoshoots.

Car lockout in San Rafael
3 days ago Tesla lockout, back in 11 min San Rafael
House lockout in Mill Valley
5 days ago Front door rekey, 6 cylinders Mill Valley
Smart lock install in Tiburon
1 week ago Yale smart lock install Tiburon
Car key programming in Novato
2 days ago Toyota key cut & programmed on site Novato
Whole-house rekey in Sausalito
4 days ago Whole-house rekey post-move-in Sausalito
Commercial office lockout in Larkspur
6 days ago Office master-key system Larkspur
Key duplication in San Anselmo
2 weeks ago High-security key copies San Anselmo
Ignition repair in Fairfax
9 days ago Ignition cylinder repair Fairfax
287+ Marin jobs completed in the last 30 days
Vehicles we service

All Major Makes & Models

ToyotaHondaFordChevroletTeslaBMWMercedes-BenzSubaruJeepVolkswagen& Many Others
Real Marin pricing

Stop paying the dealer $200–$400 extra for a key you can replace today.

Toyota dealer
$450
Tow + 2-day wait + key + programming
VS
Marin Locksmith
$150
On-site cut + programmed in 30 min
Marin Locksmith Coupons

Mention these when you call.

Real local-tech pricing, not "discounted" inflated rates. Show the coupon on your phone or just say "Marin coupon" when dispatch picks up.

New customers
$15off any service over $99

First-Call Discount

First time using Marin Locksmith? Save $15 off any service call over $99. One per household.

Call & Save: (415) 340-1708
Valid through September 2026. Code: MARIN-15
Most popular
$50off lock rekey (3+ cylinders)

Whole-House Rekey

Rekey 3 or more cylinders — new tenants, lost keys, post-move-in — save $50 off the total bill.

Call & Save: (415) 340-1708
Valid through September 2026. Code: REKEY-50
Seniors & military
10%off any service, every visit

Senior & Veteran Discount

Active military, veterans, and seniors (65+) get 10% off any service. Just show ID when the tech arrives.

Call & Save: (415) 340-1708
Ongoing offer. Code: MARIN-RESPECT

One coupon per visit. Cannot be combined. Cannot be applied retroactively. Quoted before service starts.

Real Marin reviews

Trusted by 2,800+ Marin homeowners on their worst nights.

Verified Google reviews from people who actually got locked out, lost keys, or needed a same-day rekey.

★★★★★

"Showed up in 12 min at 1am."

Locked my keys in the car at a gas station at 1am. Called. They said 15 minutes, arrived in 12. Fair price and super professional. No upsell, no surprise charges.

Sophia M.
Sophia MartinezSan Rafael · Verified Google review
★★★★★

"Saved me $300 vs the dealer."

Lost the only key to my Tacoma. Toyota wanted $450 plus a tow. Marin Locksmith cut and programmed a new transponder in my driveway in 25 minutes for $150. The bridge logo on the van made me trust them instantly — very local-feeling.

Ethan T.
Ethan ThompsonNovato · Verified Google review
★★★★★

"Smart lock install with no upselling."

Moved into a new house and wanted the deadbolts replaced plus a smart lock on the front door. They quoted on the phone, the price didn't change, and they were done in under an hour. Cleanup was perfect.

Maria B.
Maria BennettFairfax · Verified Google review
★★★★★

"Office rekey in one trip."

Fired an employee on a Friday. Called Marin Locksmith. They had every cylinder rekeyed by Saturday morning so we could open Monday with new keys. Saved us a full week of stress.

DJ
Daniel JohnsonTiburon · Verified Google review
★★★★★

"Re-keyed to office doors same day."

Had to re-key six office doors because I lost the master. Everything was finished and tested in two hours. Honest, professional, fair price. Will call them again.

OH
Olivia HuangSausalito · Verified Google review
★★★★★

"Trapped in the car at midnight in Mill Valley."

Rented a car at SFO and somehow locked the keys inside near the Mill Valley exit. Tech was there in 18 minutes, no damage, no drama. Just polite and fast.

RC
Rachel ChenMill Valley · Verified Google review
Service area

A van within 15 minutes of most Marin neighborhoods.

Stationed across San Rafael, Novato, Mill Valley, and Sausalito so we cover the entire metro 24/7.

Currently dispatching across every Marin city.

If your address is in central Marin, a tech is on the way in 15 minutes. West Marin (Point Reyes, Bolinas, Tomales) takes a bit longer — call for an exact ETA.

San Rafael Novato Mill Valley Sausalito Larkspur Corte Madera Tiburon Belvedere Ross Fairfax San Anselmo Kentfield Greenbrae Marin City Point Reyes Station Bolinas Stinson Beach Inverness
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Common questions

About transponder keys in Marin.

Why won't a hardware-store copy start my car?
Because it has no programmed transponder. The blade turns the lock, but your car's immobilizer doesn't recognize the chip, so it blocks the engine. We cut and program a chip key that does both.
Can you make a transponder key with no original?
Yes, for most makes. We generate the key from your vehicle's code by VIN or by decoding the lock, then cut and program it on-site.
How long does it take?
Most transponder keys are cut and programmed in 30–60 minutes at your location.
Is it cheaper than the dealer?
Usually yes, and you avoid towing the car in. Our chip-key pricing for most makes comes in under dealer rates.
Can you make a spare so I'm never stranded?
Absolutely — a programmed spare is much cheaper to make now than an emergency replacement after you've lost the last key. We recommend it.
What about high-security or laser-cut keys?
We cut and program many high-security (sidewinder/laser) keys on-site as well; tell us the model and we'll confirm before rolling out.
Do you come to my location?
Yes — we're mobile across all of Marin County and program the key right at your vehicle.
Ready when you are

Locked out? We're already on the way.

Pick up the phone or hit the form — a Marin Locksmith tech is dispatched in under 30 seconds, 24/7, anywhere in the county.

Licensed #LCO8487 24/7 dispatch No-damage guarantee Pay after the job
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