Rekey

Change Car Locks in DFW: Complete Guide to Lock Replacement

6 min readJune 12, 2026By DFW Key Master Team

Sometimes a rekey isn't enough and you need to change the locks entirely. Here's when that's necessary, what it costs, and how it works in DFW.

Rekey vs Replace: The Key Distinction

A rekey changes the internal tumblers of your existing locks — same hardware, new key. A lock replacement removes the entire lock cylinder and installs a new one — new hardware, new key.

Rekey is cheaper ($180-$280) and works when your locks are mechanically fine. Replacement is more expensive ($350-$550) but necessary when the locks are physically damaged or worn beyond repair. Here's when you need the full replacement.

When Lock Replacement Is Necessary

You need to replace (not just rekey) in these situations:

  • The lock cylinder is physically damaged — from a break-in attempt, accident, or corrosion
  • The tumblers are so worn that even a rekey won't fix the sticking or jamming
  • The lock housing is cracked or broken — the cylinder can't be secured properly
  • You want to upgrade to a high-security lock (e.g., from standard to sidewinder/laser-cut)
  • The ignition cylinder is damaged and needs replacement (rekey isn't possible on a cracked housing)
  • You're restoring a classic car and want all-new hardware

What Lock Replacement Involves

Here's the process when we replace your car's locks on-site:

  • We remove the door panels to access the lock cylinders
  • We detach the lock linkage and remove the old cylinders
  • We install new lock cylinders (OEM or OEM-equivalent)
  • We reattach the linkage and test mechanical operation
  • We cut new keys to match the new cylinders
  • If your car has transponder keys, we program the new chips to the car's computer
  • We test all doors, trunk, and ignition with the new keys
  • Total time: 60-90 minutes for a full lock replacement on all doors

Cost to Change Car Locks in DFW

2026 pricing for a typical 4-door sedan:

  • Replace all 4 door lock cylinders: $280-$400
  • Replace all 4 doors + trunk: $320-$450
  • Replace all doors + trunk + ignition: $400-$550
  • Add $100-$150 for transponder key programming (if applicable)
  • Additional spare keys: $80-$120 each
  • We provide a firm quote before any work begins

Can You Match All Locks to One Key?

Yes. When we replace your locks, we can key all the new cylinders to the same key so you have one key for all doors, trunk, and ignition. This is called 'keying alike' and is standard practice.

If you want different keys for different doors (e.g., a valet key that only works on the driver door and ignition), we can set that up too. But for most people, one key for everything is the simplest and best option.

Can Lock Replacement Be Done at My Location?

Yes. Our mobile rigs carry replacement lock cylinders for most popular makes and models, along with door panel tools and key-cutting equipment. We replace your locks on-site — at home, work, or roadside.

For luxury vehicles (BMW, Mercedes, Audi) or unusual models, we may need to order the cylinders, which adds 1-2 days. We'll tell you upfront if parts need to be ordered.

Need a Key Made Right Now?

Our mobile rigs are on the road across DFW 24/7. Call now — average response time 18 minutes.

Call (682) 666-2966

Frequently Asked Questions