How Long Does It Take to Replace a Car Key?

The short answer: usually one visit

For a mobile auto locksmith, most car key jobs are completed in a single visit to the car. The cutting, programming and testing happen on the spot, and straightforward work is often done within the hour once the locksmith starts. You describe the car on the call, the van arrives with the right blanks and equipment, and you drive away on the new key.

That single-visit pattern covers the majority of jobs: spare keys, replacement fobs, worn blades and keys that have lost their programming. The exceptions — the jobs that take longer — are worth understanding so you can plan.

What affects the timescale?

Five factors decide whether your job is quick or slow:

All-keys-lost: why it takes longer

When no working key exists, the locksmith cannot simply copy — the key must be generated from the vehicle data, the immobiliser system accessed without a reference key, and every function verified from zero. It is still usually a same-day job, but expect it to take noticeably longer than a spare duplication.

This is the scenario where preparation pays most. Having the V5C logbook, photo ID and the exact make, model and year ready when you call lets the locksmith arrive with the right equipment first time. Our guide to how a locksmith makes a key with all keys lost explains the process in full.

Locksmith vs dealer on time

The time gap between the two routes is usually bigger than the price gap. A dealer typically orders the key from the manufacturer, which means days or weeks of waiting — plus you have to get the car to them, which is its own problem when you have no key.

A mobile locksmith carries common blanks and programs at the car, which is why same-day service is the norm rather than the exception. If you are weighing the two routes, our dealer vs auto locksmith comparison covers cost and convenience alongside time.

How to get the fastest result

Three things on the first call make everything quicker:

• The exact make, model and year — not just the badge on the back
• The registration number, which lets the locksmith check the key type in advance
• V5C logbook and photo ID ready for the ownership check on arrival

What happens during the visit

Knowing the sequence takes the mystery out of it. The locksmith verifies ownership first — V5C and photo ID — then assesses the key type and the car system. The blade is cut to code, the new key is programmed to the immobiliser, remote functions are paired, and lost keys are erased from memory where relevant.

Then comes testing: engine start, lock, unlock, boot release, and the spare if one is being cut at the same time. Only when everything works is the job done. The whole sequence is methodical rather than rushed, which is exactly what you want from security work.

Need a key today?

We replace car keys at your location across Alvechurch, Bromsgrove, Redditch and Birmingham South — most jobs finished in a single visit. Call or WhatsApp 07367 634032 with your car details and we will give you an honest timescale before you commit to anything.