Replacement Car Keys in Portsmouth

Replacement keys cover a wide range of situations: a key that has finally given up, one lost on a night out, or a second-hand car that only ever came with one. The vehicle decides most of what happens next — the make, model and year determine the key type and how it has to be introduced to the car.

Key types replaced

• Blade keys — older vehicles with a mechanical key and no electronics.
• Transponder keys — a chip in the head that the immobiliser must recognise before the engine will run.
• Remote keys — locking, unlocking and boot release from the buttons, plus the transponder function.
• Flip and switchblade keys — the folding blade housings used across many European makes.
• Smart and proximity keys — keyless systems where the key stays in a pocket and the car starts on a button.

Key cutting

Blades are cut either by copying an existing key or by decoding the vehicle's key code. The second route is what makes a replacement possible when nothing is left to copy. Cutting is done on site, so the finished key can be tried in the doors and ignition straight away.

Programming

Once cut, the key is programmed so the vehicle accepts it — see car key programming for how transponder, remote and smart keys differ. Where keys have been lost rather than damaged, old keys are usually removed from the vehicle's memory at the same time.

Lost keys versus a worn-out key

If the original is missing entirely, the job is handled as a lost key — that page covers lost car keys in Portsmouth, including all keys lost. If you still have one working key, cutting a second is usually simpler and is covered under spare car keys.

What's needed for a quote

• Vehicle registration
• Make, model and approximate year
• Whether any working key remains
• The type of key the vehicle uses, if known
• Where the vehicle is in the Portsmouth area

Mobile service

Everything is carried out at the vehicle, so there's no recovery to arrange. Coverage runs from Southsea and Eastney up through Fratton and North End to Cosham and Farlington. Coverage of individual models varies, and a small number of newer vehicles are restricted to franchised dealers — that is checked before anything is booked.