Remote and transponder keys
The remote operates locking functions, while the transponder is recognised by the immobiliser. A fault can affect one function without affecting the other.
Mobile auto locksmith
Key fobs, remotes and smart keys
Remote keys, transponder keys and proximity fobs may look similar but use different electronics. We identify the correct type before offering replacement or programming.
How the service works
Smart and proximity keys
Push-button-start vehicles may use a proximity key that communicates without being inserted. Support depends on manufacturer, model, year and system generation.
Faulty fob or vehicle problem?
A new battery does not fix every issue. Damaged buttons, cracked solder joints, a failed transponder or a vehicle-side fault can produce similar symptoms.
Before booking
What we need from you
Send your registration, make and model, year, exact postcode and whether any working key remains. Photos of an existing or damaged key are useful.
Can you replace just the key-fob casing?+
Where a suitable casing is available and the electronics are healthy, rehousing may be possible. Send clear photos for a check.
Which vehicles are supported?+
Coverage varies by manufacturer, model, year and key system. We check compatibility before confirming attendance or a price.
Where is the service available?+
Across North London, Hertfordshire, Essex and surrounding areas, subject to the job, exact location and availability.
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