Rekey Service in DFW: When to Rekey Your Car (and When Not To)

What Rekeying Actually Does

A rekey changes the internal tumblers of your lock cylinders so they accept a new key and reject the old one. The physical locks stay in your car — only the pins inside change. It's like changing the combination on a padlock.

Rekeying is faster and cheaper than replacing the entire lock hardware, and it gives you the same security result: the old key no longer works. Here's when it's the right call.

When to Rekey: The Clear Cases

These situations call for a rekey:

• You lost a key — the lost key can still open your doors. Rekey to invalidate it
• You bought a used car — you don't know who has copies. Rekey for peace of mind
• You went through a divorce or breakup — remove access from someone who had a key
• You lent a key to someone and didn't get it back — rekey to be safe
• Your key was stolen — rekey immediately, don't wait
• An employee with company vehicle access left the job — rekey the fleet vehicle

When You Don't Need a Rekey

In these cases, a rekey is unnecessary:

• You lost the key inside your own home and it's not in someone else's possession
• The key broke and you have both pieces — no one else has a working key
• You dropped the key in water and it's unrecoverable (lake, river, sewer)
• You just want a spare key — you don't need to rekey, just duplicate the existing one
• Your locks are working fine and you haven't lost a key — no reason to rekey

Rekey vs Replace: The Decision

If your locks are mechanically fine, rekey. If they're damaged, replace:

• Locks work fine, just want a new key → rekey ($180-$280)
• Locks are worn, sticky, or damaged → replace ($350-$550)
• Not sure? We diagnose on-site and tell you which makes sense before any work
• In most cases, rekey is sufficient — lock replacement is only needed for physical damage

What It Costs to Rekey a Car in DFW

2026 pricing for a typical 4-door vehicle:

• Rekey all 4 door locks: $150-$220
• Rekey all 4 doors + trunk: $180-$260
• Rekey all doors + trunk + ignition: $220-$350
• Add $50-$100 if we also need to erase a lost transponder chip from the computer
• We provide a firm quote before any work begins

How Long Does a Rekey Take?

A full rekey (all doors + trunk + ignition) takes 45-60 minutes on-site for a typical vehicle. We come to your location — no need to drive to a shop or leave your car.

You'll get new keys cut to match the rekeyed locks. We recommend getting at least two new keys so you have a spare. The first key is included; additional spares are $80-$120 each.