Service

Broken Car Keys | Car Key Repair & Replacement

Snapped blade, cracked case, dead buttons or a key stuck in the ignition? We find out exactly which part has failed, then repair or replace it at your vehicle, so you only pay for what's actually broken.

  • 6 years' experience
  • Key repair, extraction and replacement
  • Dealer-level programming equipment
  • Fully mobile — cars, vans and smart keys
Six years of specialist auto locksmith experience
New flip key for a MAN TGE van held with an Auto Locksmith Eastleigh business card in front of the steering wheel
Mobile help at the vehicle
Vehicle-specific checks first
  • AVG Same Day Service
  • DBS Checked
  • 5★ Reviews

Not A National Company

A local business, not a call centre.

Real Local Professionals

Locals, not technicians sent by a middle-man company.

No Inflated Pricing

National companies often mark prices up 2–3x. We don't.

Deal Direct With The Technician

No wondering who or when. It's always us.

Key repair

Broken Or Damaged Car Key? Find Out What Can Be Repaired

A broken car key doesn't always need replacing. Modern keys are made of several separate parts, and often only one has failed.

We diagnose which part is at fault, then recommend a repair or a replacement based on what will actually last.

Damaged car key alongside a newly cut replacement on a locksmith's workbench

Can A Broken Car Key Be Repaired?

Often, yes. Cracked casings, worn buttons, broken flip-key mechanisms and some electronic faults can be repaired, and a worn or snapped blade can sometimes be replaced while keeping the original electronics. Whether a repair is sensible depends on the key's design and what has failed.

When Is Replacing The Key Better Than Repairing It?

Replacement is usually better when the transponder has failed, the electronics are water damaged, the blade can't be replaced separately, or several parts are worn at once. In those cases a new key is more reliable than patching the old one.

The method

How Do We Diagnose & Replace A Broken Car Key?

We check each part of the key separately, then repair or replace only the component that has failed.

A modern car key typically contains a mechanical blade, a transponder chip, remote electronics, a battery and a casing with buttons, and one failing doesn't mean the others have. Finding the weak link is the whole job.

01

Checking The Blade, Casing, Electronics & Transponder

We test whether the blade turns the locks and ignition smoothly, whether the transponder is recognised by the immobiliser, and whether the remote transmits and its buttons respond.

Remote faults often come down to a flat battery, worn microswitches or a cracked solder joint on the circuit board. A transponder fault behaves differently: the car unlocks but won't start.

02

Cutting A New Blade When The Original Is Worn Or Snapped

When a blade is worn or snapped, we cut a new one to the correct factory profile rather than copying the damaged one.

If both halves of a snapped key are available, the cuts can sometimes be read from them. If the blade is badly worn, we decode the lock instead, so the new key matches the original specification, not years of wear.

03

Transferring Or Programming The Correct Immobiliser Data

If the existing transponder is healthy, it can sometimes be transferred into a new key shell. If it has failed or is built into damaged electronics, a new transponder is programmed to the vehicle.

On some keys, the transponder is a separate chip that moves easily. On many modern keys it's built into the circuit board, so replacing the board means programming a new key through the diagnostic port or the vehicle's security module.

04

Testing The Key In The Locks, Ignition & Remote System

Before we finish, we test the key in the door locks and ignition or start button, confirm the engine starts, and check the remote locking.

Locksmith using a specialist extraction tool at a car ignition barrel
Snapped in the ignition

What Should You Do If A Car Key Snaps In The Ignition?

If your key snaps in the ignition, don't try to pull the piece out with pliers, push it in with another key, or use glue.

Leave the broken piece in place, keep the other half, and call an auto locksmith to extract it and check the ignition barrel.

Can The Broken Piece Be Removed Without Replacing The Ignition?

Usually, yes. We use specialist extraction tools to remove the broken blade without damaging the ignition barrel, and in most cases the ignition works normally afterwards with a new key.

Was The Key The Problem — Or Is The Ignition Lock Worn?

A key can snap because the blade was fatigued, or because a worn or binding ignition barrel put extra strain on it. We check the ignition after extraction to find out which.

If the barrel is worn, a new key alone may snap again. In that case, Ignition Repair & Replacement solves the root cause.

Smart proximity car key fob and transponder chip
Common faults

Common Car Key Problems We Can Help With

Blades, casings, buttons, transponders and remote electronics all fail in different ways — and each one points to a different fix.

Snapped, Bent & Worn Car Key Blades

A snapped, bent or heavily worn blade can usually be replaced by cutting a new one to your vehicle's correct profile.

Broken Remote Keys, Buttons & Key Casings

Cracked cases, missing buttons and remotes that only work sometimes are common, and many can be fixed by replacing the shell or worn internal switches.

Flip keys are particularly prone to broken hinges and loose blades, which is often a straightforward repair.

Keys Broken Inside Ignitions Or Door Locks

If part of the blade is stuck in the ignition or a door lock, we can usually extract it with specialist tools without damaging the lock.

Keys That Unlock The Car But No Longer Start It

If the remote works but the engine won't start, the problem is usually the transponder or its programming rather than physical damage.

This is often a sign the chip has been damaged, perhaps from a drop, or has lost its link with the immobiliser. See Car Key Programming for more.

Key broken or failing? Call 023 8218 2738 or text a photo of the key.

Vehicles

Which Broken Keys Can Be Fixed Or Replaced?

BMW, Audi, Mercedes-Benz, Land Rover, Jaguar, Volvo, Ford, Volkswagen, Vauxhall, Peugeot, Renault, Toyota, Nissan, Honda, Mazda, Hyundai and Kia.

Key types

Traditional Keys, Flip Keys & Remote Fobs

Traditional keys, flip keys and fixed-blade remotes each break in different ways and need different repair approaches.

Ford, Vauxhall, Peugeot and Volkswagen keys, for example, are built quite differently, so we match the repair to the specific key design rather than applying a one-size-fits-all fix.

Freshly cut car key beside a vehicle door lock
Diagnostic tablet connected to a car's OBD port
Smart keys

Transponder, Smart & Keyless Vehicle Keys

Smart keys for vehicles such as BMW, Audi, Mercedes-Benz and Toyota combine the transponder, remote and proximity electronics in one sealed unit.

Physical damage to a smart key can affect several functions at once, so these are more often replaced than repaired, though a damaged case or emergency blade can sometimes be fixed on its own.

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  • Price explained before any work
  • No upfront payment
  • Deal direct with the technician
Or call 023 8218 2738

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Repair or replace

Repair The Old Key Or Replace It?

Repair makes sense when the fault is limited to one part and the rest of the key is sound. Replacement is better when the core electronics have failed or damage is widespread. Repairability always depends on the individual key.

ProblemRepair May Be PossibleReplacement May Be Better
Damaged casingOftenIf other components are damaged
Worn buttonsOftenIf electronics have failed
Snapped bladeDepends on key designOften
Worn bladeSometimesFrequently
Failed transponderLimitedOften
Water-damaged electronicsDepends on damageOften
Missing keyNo key to repairYes
Severe physical damageLimitedUsually

When Repairing The Existing Key Makes Sense

If only the casing, buttons or a replaceable blade has failed, a repair keeps your working electronics and is usually quicker and cheaper.

When A Complete Replacement Key Is The Better Option

If the transponder or circuit board has failed, or the key has several problems at once, a new key gives you a reliable result rather than a short-term fix.

Pricing

Broken Car Key Repair Cost

The cost of repairing a broken car key depends on what has failed. A new casing or blade is usually the least expensive fix, while replacing failed electronics, programming a new transponder or extracting a key from the ignition involves more work. We inspect the key and confirm the price before starting.

Key Repair, Blade Replacement & Complete Key Replacement Costs

A shell or button repair costs less than a new blade, and a new blade usually costs less than a complete replacement key with new electronics.

When Programming Is Required For The Replacement Key

If the transponder or remote electronics are replaced, the new key must be programmed to the vehicle, which adds to the cost compared with a purely mechanical repair.

Clear Pricing Before Repair Or Replacement Begins

You'll know the price before we start, with no upfront payment, no hidden charges and no obligation to proceed.

A “broken key” can turn out to be a different fault once inspected. If so, we'll explain the revised cost before continuing. If you decline it, there's no call-out charge.

Get a repair quote: call 023 8218 2738 or text a photo of the key.

Recent work

Snapped Blades & Split Fobs We've Dealt With

Typical damaged-key jobs and how they're resolved at the vehicle.

Ford Key Blade Snapped — Replacement Key Cut & Tested

A Ford key with a snapped blade, cut to factory specification and tested in the locks and ignition.

Volkswagen Remote Key Damaged — Key Repaired Or Replaced

A Volkswagen flip key with a broken hinge, assessed for repair, with the original electronics retained where possible.

Vauxhall Key Broken In Ignition — Fault Diagnosed & Access Restored

A Vauxhall key snapped in the ignition, extracted without damage, with the barrel checked for wear before a new key was supplied.

See more Recent Jobs or call 023 8218 2738.

FAQ

Broken Key Questions

Related services

Ignition & Key Work Linked To Broken Keys

Is The Ignition Causing The Key To Stick Or Break?

If the key sticks, binds or won't turn, the barrel may be the real problem.

Need A New Key Programmed To The Vehicle?

If the key has stopped starting the car.

Still Have One Working Key And Want A Backup?

Get a spare before the damaged key fails completely.

Has The Damaged Key Been Lost Completely?

If you no longer have the key at all. If you're stranded, or to browse everything we offer.

Broken key?

Broken Car Key? Get It Checked Before The Problem Gets Worse

Tell us what's happened and we'll give you a clear price, then come to your vehicle to repair or replace the key.

It helps to let us know:

  • Vehicle make, model, year and registration
  • What's damaged on the key
  • Whether the key still starts the vehicle
  • Whether the remote buttons work
  • Whether part of the key is stuck in the ignition or a lock
  • Where the vehicle is

If it isn't urgent, a clear photo of the damaged key helps us quote accurately. We cover Eastleigh, Chandler's Ford, Hedge End and the surrounding areas, or contact us online.

Mobile coverage across Eastleigh & surrounding areas