House lockouts
Re-keying
Deadbolt upgrades
Smart locks
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 Monrovia
If you’ve lost your car key, snapped one in the ignition, or have a transponder key that’s stopped communicating with your vehicle’s immobilizer, the fix is straightforward: we come to you in Monrovia, cut and program a replacement on-site, and have you back on the road, usually within the hour. A typical car key replacement in Monrovia runs $180 to $340 for a transponder key, and we program it right there in your driveway, in the Foothill Blvd parking lot, or at your acreage gate. Call (855) 791-2710 and Noel Tarkanian or one of our locksmiths will give you an exact quote over the phone before anyone is dispatched, and the price we quote is the price on your invoice.
We work across all of Monrovia’s 91016 and 91017 ZIP codes, from the craftsman bungalows near Old Town to the ranch tracts and foothill acreages north of Foothill Blvd. Our Car Key Replacement team handles everything: worn transponder keys that no longer read, fob battery failures with doors locked, all-keys-lost immobilizer procedures, and cutting backups so you never end up stranded with a single key again. When it comes to Car Key Replacement in Monrovia, the work tends to split in two directions, and we’re built for both.
Why Monrovia Calls Glendale Lock & Key for Car Key Replacement
Monrovia’s housing stock runs from 1920s Spanish colonials off Foothill Blvd to 1950s-1970s ranch tract homes in 91016 and 91017. That split means our technicians see two very different car-key calls on the same day: a homeowner with an original craftsman whose worn transponder key finally quit reading, and a foothill property owner whose late-model truck’s only key stopped talking to the immobilizer, with a gate and workshop also on the list. Most locksmiths can do one of those. We handle both cleanly because we train across automotive transponder systems and residential hardware, from Schlage and Kwikset entry locks to Medeco and Abloy high-security cylinders.
Our techs know the streets of Monrovia. We’re on Myrtle Avenue, up Canyon Boulevard, and across the foothill stretches north of Foothill Blvd regularly. That local familiarity means we get to a Myrtle Avenue storefront or a 91017 residential street quickly, and we don’t waste your time getting lost in the foothill switchbacks. Reviews from Monrovia customers consistently mention the same things: we show up when we say we will, we quote honestly, and we fix the key problem without upselling a tow to the dealer. Noel Tarkanian runs the shop with a simple rule: if we can program it, cut it, or rekey it, we do it on the first visit.
We carry a deep inventory of automotive transponder blanks, key fobs, and programmer equipment on our service vehicles. When you call from Monrovia, you’re not waiting days for a part to ship. For many late-model Ford, Toyota, Honda, GM, and Chrysler keys, we have the blank and the programmer on board.
Styles & brands we work with
Our Car Key Replacement Services in Monrovia
Transponder Key Programming and Replacement
Modern car keys contain a transponder chip that handshakes with the vehicle’s immobilizer. When that chip fails, the key turns but the engine won’t start, and a cut-metal key alone won’t solve it. We cut and program transponder keys on-site in Monrovia, including all-keys-lost procedures where the car’s immobilizer has to be placed into programming mode. In a 91017 driveway or at a Foothill Blvd curb, that typically takes 45 to 90 minutes, depending on the vehicle’s make and model year. No tow truck, no dealer appointment.
All-Keys-Lost and Immobilizer Programming
The most common Monrovia failure we see is a single transponder key on a late-model car that fails, leaving the owner with no backup to clone or program from. That forces an all-keys-lost immobilizer procedure, which requires the correct diagnostic tool and the right key blank. We carry both on the service truck. We’ve done this in Old Town Monrovia parking lots and at foothill acreage properties where the nearest dealer is 20 minutes down the hill and a tow would cost more than the key itself.
Master Key Systems for Outbuildings and Gates
Acreage properties around Monrovia, especially the foothill parcels north of Foothill Blvd, often have a house, a workshop, a barn, and a driveway gate, each on a different key. When a car key is lost and we’re already on-site programming a replacement, we can rekey the house, workshop, and gate cylinders to a single master key system in the same visit. You hand one key to a ranch hand or family member and it works the gate, the shop door, and the front door. We do this with commercial-grade cylinders from Medeco and Schlage, not builder-grade stuff that’ll need rekeying again in two years.
Fob Battery Failure and Emergency Unlock
A dead fob battery with the doors locked is one of the most frustrating Monrovia calls we get, especially in the 91017 retail and business parking lots where the car sits in the sun all afternoon. Foothill heat accelerates battery drain in key fobs, and by the time you notice the range shrinking, the fob’s often dead. We unlock the vehicle without damage, replace the fob battery, and test the transponder signal right there. If the fob itself is failed, we program a new one on the spot.
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.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Monrovia
We don’t turn away work because we don’t know the hardware. Our technicians work across eight named lock and key brands spanning automotive, residential, and commercial tiers. On the car key side, we program OEM and aftermarket transponder systems for most major manufacturers built after 1998. On the house and outbuilding side, we service Kwikset, Schlage, Medeco, and Abloy cylinders, which matters in Monrovia where 1920s mortise locks and modern high-security deadbolts sit on the same street. We stock key blanks and common lock cylinders on our vehicles so a Monrovia call doesn’t mean a second appointment for parts.
Common Car Key Replacement Problems We See in Monrovia
- Single transponder key failure with no backup. A foothill owner off Foothill Blvd had one key for their late-model truck. The transponder quit reading one morning, and with no second key to clone from, the only fix was an all-keys-lost immobilizer procedure. We cut and programmed a new key on-site, then cut two spares while we were there.
- House, workshop, and gate all on different keys. Acreage properties in northern Monrovia often accumulate keys across decades of repairs. One lost car key becomes the moment owners realize their workshop deadbolt, gate padlock, and front door all need a locksmith anyway. We rekeyed the barn and shop doors to match one master key system during a single car-key visit.
- Foothill heat and Santa Ana wind warping wooden door frames. A freshly programmed transponder key works perfectly in the ignition, but the deadbolt on the workshop door binds because the wood frame swelled and shifted. That’s a Monrovia-specific rhythm: hot, dry summers dry out door frames, Santa Ana events push them further, and winter rains swell them back. We align strikes and replace sagging door hinges as part of the same call.
- 1920s mortise locksets with no modern key control. Near Old Town Monrovia, many original craftsman and Spanish colonial homes still have mortise locksets with skeleton keys or worn single-cylinder deadbolts. When a homeowner loses a car key and asks us to rekey the house to match, we often discover the front door lock is a 100-year-old mortise that needs an antique cylinder or a retrofit. We handle that on the same visit, rather than telling you to call a handyman.
Pricing for Car Key Replacement in Monrovia, CA
Here’s what car key replacement actually costs in Monrovia, based on what we see every week in 91016 and 91017. A standard transponder key cut and programmed runs $180 to $260. A push-to-start smart key or proximity fob runs $220 to $340, depending on the make and model. All-keys-lost programming, where the immobilizer has to be reset, typically runs $250 to $380, this is higher because it requires more diagnostic time and a security procedure, not because we’re padding the bill. A basic non-transponder metal key for older vehicles runs $50 to $90. Rekeying a house or workshop cylinder to match a master key system adds $20 to $40 per cylinder, with most Monrovia acreage properties needing three to six cylinders.
| Service | Monrovia Price Range |
|---|---|
| Standard transponder key (cut and programmed) | $180 – $260 |
| Push-to-start smart key / proximity fob | $220 – $340 |
| All-keys-lost immobilizer procedure | $250 – $380 |
| Non-transponder metal key | $50 – $90 |
| Rekey per cylinder (master key system) | $20 – $40 |
| Fob battery replacement | $15 – $35 |
What affects the final number: the vehicle’s make and model year, whether the car needs a transponder or a proximity fob, and whether we’re rekeying house or outbuilding locks at the same time. The price we quote on the phone is the price on the invoice. There’s no call-out surcharge added when we arrive. We also never advertise a teaser “from $19” number, because that’s not what the job costs in Monrovia. Call (855) 791-2710 and we’ll give you an exact quote for your vehicle before anyone leaves Glendale.
We Also Serve Cities Near Monrovia
Our service vehicles cover Monrovia and the surrounding foothill communities, including Mayflower Village, Duarte, Bradbury, and Arcadia. If you’re just off the Monrovia border on Foothill Blvd or Myrtle Avenue, you’re well within our regular service area. Same response time, same on-site programming, and same upfront pricing whether you’re in 91016, 91017, or one of the adjacent ZIPs. Call us from anywhere in the foothill corridor and we’ll have a tech dispatched quickly.
Serving Monrovia, CA — Our Local Coverage Area
We’re based in the Monrovia 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 Monrovia
Yes, we program transponder keys on-site in Monrovia, including all-keys-lost immobilizer procedures, for most vehicles built after 1998. We carry the diagnostic programmers and the blank keys on our service vehicles, so there’s no tow and no dealer appointment. Call (855) 791-2710 with your vehicle’s year, make, and model, and we’ll tell you immediately whether your key can be done on-site.
Yes, one visit handles it. While we’re on-site programming your car key, we can rekey the house, workshop, and gate cylinders to a single master key system so one key works across the entire property. We’ve done exactly this for foothill owners in north Monrovia, often with Medeco or Schlage commercial-grade cylinders. Call for a flat per-cylinder quote before we arrive.
Yes, the same Monrovia visit covers both. Our technicians are trained across automotive transponder systems and original mortise hardware, so we can program your car key and then service or retrofit the seized mortise lock on your 1920s craftsman or Spanish colonial. You’re not paying for two separate service calls. Call (855) 791-2710 and we’ll scope both jobs on the phone.
Rekeying is almost always cheaper than replacing the lock cylinder, and it’s often the better security move. In Monrovia, rekeying a single cylinder runs $20 to $40, plus the service call. Replacing a cylinder, especially on a 1920s mortise or a commercial-grade Medeco, can run $60 to $120 per cylinder before labor. Rekeying preserves the existing hardware investment and restores key control. Call for a per-lock quote.
We unlock the vehicle without damage, replace the fob battery, and test the transponder signal on-site in the 91017 parking lot. Foothill heat in Monrovia shortens fob battery life, so we carry a full range of fob batteries and replacement fobs on the truck. If the fob itself has failed, we program a new one while you wait. Call (855) 791-2710 from wherever you’re parked.
Call Glendale Lock & Key for Car Key Replacement in Monrovia
Lost your key? Got a transponder that won’t read? Need one key for the car, the workshop, and the gate? Call (855) 791-2710 and talk to Noel Tarkanian or one of our technicians. We’ll give you an exact price on the phone before anyone is dispatched, and that’s the price on your invoice. We serve all of Monrovia, 91016 and 91017, from Old Town to the foothill acreages north of Foothill Blvd. One call, one visit, from the ignition to the deadbolt.
Written by Noel Tarkanian, Owner at Glendale Lock & Key, serving Monrovia since our founding.