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 estimateFast, Reliable Car Key Replacement Across San Marino
Losing a car key or dealing with a worn ignition key in San Marino usually means one thing: you need a replacement that actually works the first time. We replace car keys for nearly every make and model, including transponder keys and fobs that require programming. Our Car Key Replacement team knows the streets off Huntington Drive and Euston Road well enough to get to you without wandering. Call (877) 358-5506 and we’ll give you an honest quote before anyone is dispatched.
Why True Blue Locksmith Is San Marino’s Preferred Car Key Replacement Company
San Marino is different from most cities we serve. The homes here are old, grand, and protected. Many were built in the 1920s and 1930s, and their owners care about preserving original hardware, not swapping it out for whatever fits. That mindset carries over to car keys too. When a San Marino resident calls us, they don’t want a guess. They want a tech who understands vehicles, knows when a key blank is no longer made, and can hand-cut or program a replacement without damaging anything else.
Noel Carrasco leads our team, and the standard he sets is simple: treat every home and every car like it belongs to someone who notices details. San Marino homeowners notice. We’ve worked on estates near Lacy Park, on the tree-lined blocks east of St. Albans Road, and in the gated motor courts off Orlando Road. The work is often more involved than a standard key copy, but that’s what we’re built for.
Response time matters. We carry transponder blanks, cloning equipment, and a range of aftermarket and OEM-compatible fobs so a trip to San Marino from our Irvine base isn’t wasted. Nobody on our team quotes a price from a call center script. You’ll talk to someone who knows the trade.
Styles & brands we work with







Our Car Key Replacement Services in San Marino
Transponder and Chip Key Replacement
Most vehicles sold in the last 20 years need more than a metal key. The chip inside the key has to be recognized by the immobilizer before the engine starts. In San Marino, we regularly see Lexus, Mercedes-Benz, BMW, and Toyota transponder keys that have to be programmed on-site. A generic key cut at a hardware store won’t start the car. We bring the programming equipment to your driveway, whether you’re on Berkeley Avenue or near the Huntington Library.

Key Fob and Remote Replacement
If your fob is dead or the buttons are worn, we can supply and program a replacement. This includes proximity fobs, remote head keys, and aftermarket options that keep the same functionality without the dealership markup. For drivers in 91108 and 91118, this usually takes under an hour once we’re on scene.

Classic Car Keys and Vintage Lock Cylinders
San Marino has a surprising number of classic and collector cars. If you own a 1960s or 1970s vehicle with original locks, you know the key is often a single-sided steel blank that hasn’t been cut in decades. We hand-cut these keys. We also rebuild worn lock cylinders so the ignition doesn’t stick halfway. This is slow, careful work and it’s the kind of thing that separates a real locksmith from a kiosk.

Duplicate Keys for Gated Estates
Many homes in San Marino sit behind iron gates at the end of long driveways. The gate may use a different key than the house, and neither may match the car. We can cut duplicates for residential gates and garage doors as part of the same call, so you don’t need two separate appointments. If the gate keyway is restricted, we’ll walk you through what authorization is required.

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.
Trusted Brands We Service in San Marino
We work with Kwikset, Schlage, Baldwin, and Yale hardware on the residential side, plus Medeco, Mul-T-Lock, Abloy, and Sargent for high-security systems. That matters for San Marino because many homes here mix eras: a modern Yale deadbolt on the kitchen door alongside a 1920s mortise lock on the front. The same key ring might hold a Medeco gate key and a transponder car key. Our techs recognize all of it. We keep common blanks and cylinders stocked so we’re not driving back to the shop mid-job.
Common Car Key Replacement Problems We See in San Marino Homes
- Restricted keyways on estate gates and garages. Many San Marino properties use Medeco or Mul-T-Lock keyways that can’t be duplicated at a kiosk or hardware store. The key is patented and requires a card or authorization. If you’ve lost one, we can verify what’s allowed and cut a replacement within the system’s rules.
- Dust fouling in long-driveway gate locks and remote mechanisms. Santa Ana winds push fine grit into key slots and small mechanisms. A key that turns hard or a gate remote that works intermittently is often a dust problem, not a broken lock. We clean and service these during a key replacement call rather than telling you to replace the whole mechanism.
- Seismic settling misaligning door and gate hardware. San Marino sits in a seismically active region. Even small tremors can shift old wood framing enough that a door latch no longer aligns with the strike plate. We see this on the older Spanish Colonial estates, where the door itself may be original and the hardware matches. Replacing a key doesn’t solve a latch problem, so we check alignment while we’re there.
- Transponder keys that won’t program to aftermarket remotes. Some vehicles are picky about aftermarket fobs. If the replacement fob doesn’t take programming, we don’t leave you stranded. We carry OEM-compatible options for most common models and will tell you honestly if a dealership-only part is the only real fix.
Pricing for Car Key Replacement in San Marino, CA
A standard non-transponder car key copy in San Marino typically runs between $35 and $95 depending on the blank. Transponder and chip keys land in the $120 to $260 range including on-site programming. Key fob replacement with programming generally falls between $150 and $320. Hand-cut keys for classic cars or restricted keyways can run $25 to $80 per key once authorization is verified. If you need a full fob plus emergency opening, expect the higher end of these ranges.
The price we quote on the phone is the price on the invoice. That’s not a slogan, it’s how Noel runs the company. There’s no surcharge added when the tech arrives. You’ll know the total before anyone leaves our lot, and if we can’t do the job without a part that has to be ordered, we’ll say so plainly.
| Service | Typical Range (San Marino) |
|---|---|
| Standard metal key copy | $35 – $95 |
| Transponder / chip key + programming | $120 – $260 |
| Key fob replacement + programming | $150 – $320 |
| Classic / restricted key hand-cut | $25 – $80 per key |
We Also Serve Cities Near San Marino
Our team routinely handles Car Key Replacement in San Marino and the surrounding communities. If you’re across the border in San Gabriel, East San Gabriel, Alhambra, or East Pasadena, the same trucks and same phone number cover you. Call (877) 358-5506 for service anywhere in the San Gabriel Valley corridor.
Serving San Marino, CA — Our Local Coverage Area
We’re based in the San Marino 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 – Car Key Replacement in San Marino
Yes. We replace and program transponder keys for most makes and models in San Marino, usually in one visit to your home or office. The new key gets paired to your vehicle’s immobilizer on-site. Call (877) 358-5506 to confirm your year, make, and model so we bring the right equipment.
Yes, as long as you have proof of ownership and any required authorization. Restricted blanks like Medeco and Mul-T-Lock can’t be copied by automated machines, but we cut them by hand. The car key itself is usually a separate cylinder, so the gate or house lock restriction doesn’t automatically block a vehicle key, but we handle both under one call.
Yes. Many San Marino collectors own vehicles with original lock cylinders that use key blanks no longer in production. We hand-cut keys from vintage steel blanks and can rebuild worn cylinders rather than replacing them with modern parts that change the car’s original character. If your classic sits in a detached garage off a long driveway in 91108, we’ll come to you.
In most cases, we can be in San Marino within the hour during normal business hours, and emergency response extends into evenings and weekends. Transponder programming typically takes 30 to 45 minutes once our tech arrives. Call (877) 358-5506 and we’ll give you a realistic ETA along with the quote. No call-out surcharge gets added on arrival.
Yes. For homes where multiple vehicles, gates, and garages use different keys, we can set up a keyed system with restricted duplication so no one can make an unauthorized copy at a kiosk. That’s common on the estate blocks off Huntington and Euston, where residents want one key ring but tight control over who can duplicate what. We’ll document each key and keep the system organized.
Written by Noel Carrasco, Owner at True Blue Locksmith, serving San Marino and the San Gabriel Valley.