Last Updated: April 2026

Spare Car Key Service

$75 - $250 | 20-40 minutes | Available 24/7

Quick Answer

Triton Locksmith makes spare car keys at your location for $75-$250. Much cheaper than the $150-$400 emergency replacement you'll pay if you lose your only key. We clone the blade and transponder chip from your existing key in 20-40 minutes.

$75 - $250
Approximate. Technician confirms final price on site.

Why Should You Get a Spare Car Key Made?

Because losing your only key costs 2-3x more to replace. Here's the math:

  • Spare key now (while you have the original): $75-$250
  • Emergency replacement after losing all keys: $150-$400
  • Savings by getting a spare: $75-$150 plus zero stress and zero downtime

According to a 2024 Consumer Reports survey, 1 in 5 drivers has lost a car key in the past 3 years. That's 20% of drivers who ended up paying full emergency replacement prices because they never got a spare made. A spare key is the cheapest car insurance you can buy.

Think of it this way. You lock your house with a deadbolt and keep a spare house key. Why would you drive a $30,000-$60,000 car with only one key? One key is a single point of failure. When it's gone, you're stranded, stressed, and paying emergency rates.

Spare car key made from existing key by Triton Locksmith mobile service in South Florida

How Much Does a Spare Car Key Cost by Key Type?

$75-$250 depending on the key type.

Compare those prices to what you'd pay if you lost your only key:

  • Standard metal key lost: $100-$150 (emergency, no original to clone)
  • Transponder key lost: $150-$250
  • Smart fob lost: $200-$450

The spare costs 30-50% less across every key type because we clone the existing key instead of creating one from scratch.

How Is Making a Spare Key Different from Emergency Replacement?

We clone your existing key instead of decoding the car from scratch. Cloning is faster, simpler, and cheaper because we copy the blade pattern directly from your working key and duplicate the transponder chip data. No need to access the car's immobilizer through the OBD-II port (for most chip types). No need to decode the lock cylinder. The original key gives us everything we need.

For basic transponder keys (4C, 4D, 46 chips), cloning takes 15-20 minutes. We read the chip, write the data to a new blank, and cut the blade. Done. For smart proximity keys, the car needs to "learn" the new fob through an OBD-II programming session, which takes 20-30 minutes. But it's still faster and cheaper than an all-keys-lost replacement.

Where Should You Keep Your Spare Car Key?

At home in a safe, consistent location. NOT in the car. Here are the best and worst places to store your spare:

Good places:

  • Key hook inside your home (by the front door or in the kitchen)
  • Drawer in your nightstand or home office
  • With a trusted family member who lives nearby
  • In a home safe

Bad places:

  • In the glove box (if you lock yourself out, the spare is locked in too)
  • In a magnetic key box under the car (thieves know to check there)
  • In your wallet (if you lose your wallet, you lose both keys)
  • At the office (not accessible on nights and weekends when you're most likely to need it)
Cutting spare car key on mobile key machine at customer home in South Florida

How Many Spare Keys Should You Have?

At minimum, one spare per driver plus one backup. A household with two drivers should have at least 3 keys per car: one for each person and one spare at home. Most vehicles support 4-8 programmed keys, so there's no technical limit on how many spares you can have.

If you're buying a used car, check how many keys come with it. Many used cars are sold with only one key. The seller lost the other one years ago. Get a spare made before you forget. It'll be cheaper now from the original than later from scratch.

Does Triton Locksmith Come to Your Location for Spare Keys?

Yes. We're fully mobile. We come to your driveway, office parking lot, or wherever your car is parked. No need to drive to a locksmith shop. No need to find a hardware store that can handle transponder keys (most can't). We bring the key machine, chip reader/writer, blank inventory, and programming equipment. Everything happens at your car in one visit.

Most customers schedule spare key appointments on a Saturday morning. We come to the house, clone the key in the driveway in 20-40 minutes, and it's done. No disruption to your week.

Can You Make Multiple Spare Keys in One Visit?

Yes. And it saves money. Each additional spare on the same visit costs $25-$50 less than the first because we're already set up. If you have two cars in the driveway, we can make spares for both. Common for families: get spares for both the sedan and the SUV while we're there. One trip, done.

Where Does Triton Locksmith Make Spare Car Keys?

At your location across 48 South Florida cities. Boca Raton, Coral Springs, Coconut Creek, Fort Lauderdale, West Palm Beach, and everywhere in between. 20-minute response. Call (561) 524-8500 to schedule.

Common Questions

How much does a spare car key cost?

Standard metal key: $75-$100. Transponder key: $100-$175. Smart/proximity key: $175-$250. All include cutting, programming, and testing.

Can you come to my home to make a spare?

Yes. We're fully mobile. We come to your driveway, office parking lot, wherever is convenient. No need to drive to a shop.

How many spare keys can I have?

Most vehicles support 4-8 programmed keys. Two is the minimum we recommend. One on your person, one in a safe place at home.

Should I get a spare before I lose my only key?

Yes. That's the whole point. A spare now costs $75-$250. An emergency replacement after losing all keys costs $150-$400 plus the stress and downtime. It's the cheapest insurance you can buy.

How long does it take to make a spare car key?

15-40 minutes depending on the key type. Standard metal keys: 10 minutes. Transponder keys: 15-20 minutes. Smart proximity fobs: 25-40 minutes. All done at your car.

Is a spare key the same as a duplicate?

Essentially yes. A spare is a duplicate made while you still have the original. We clone the blade pattern and chip data. The spare works identically to the original.

Can I get a spare for a push-to-start car?

Yes. Smart proximity fob spares run $175-$250. We program the new fob to your car through the OBD-II port so it has full functionality: proximity unlock, push-to-start, remote lock/unlock, and trunk release.

Where should I keep my spare car key?

At home on a key hook or in a drawer. NOT in the car (defeats the purpose), NOT in your wallet (lose wallet = lose spare), and NOT in a magnetic box under the car (thieves check there). Give one to a family member who lives nearby.

Can you make spares for two cars in one visit?

Yes. If both cars are at the same location, we make spares for both in one trip. Each additional car's spare costs the normal rate. No second service call fee.

Is a locksmith spare key cheaper than the dealer?

Yes. 30-50% cheaper on average. Plus we come to you. No driving to the dealer, no leaving the car, no 3-5 day wait. One visit in your driveway, 20-40 minutes.

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Need Spare Car Key Service?

We're on call 24/7 across 25 South Florida cities.

(561) 524-8500