SmartTech Auto Locksmiths
Blue car parked on a sunlit suburban driveway

Mobile auto locksmith · Winchester

Car Key Replacement Winchester | Lost Keys Made Where The Car Is

Key gone and the car stuck in a Winchester car park, on a driveway or outside work? Lost car key replacement in Winchester takes place right beside the vehicle, with the new key cut, programmed to the immobiliser and tested before we leave.

  • 7 Years Of Automotive Expertise
  • 450+ Reviews · Google & Checkatrade
  • 12-Month Warranty
Audi A3 ignition lock replaced in Hampshire by SmartTech Auto Locksmiths, key and business card held in front of the vehicle
Audi A3 · Ignition lock replaced
  • Not A National Or Middle Man

  • Real Local Professionals You Deal With Direct

  • No Inflated Middle Man Or Dealer Prices

Still have a working key?

Let’s talk keys

Get a quote.

Send your details and we’ll get back to you about your keys. For anything urgent, call us.

  • Speak directly about your vehicle
  • The right option for your key
  • Understand the work before deciding
07535 856 003

Get a quote

Two quick steps. No obligation.

  1. Your issue
  2. Your details
Service needed

Service needed

Key type (optional)

Key type

We’ll use these details to respond to your request.

At your car

What Actually Happens When We Make Your Key?

Keys made at the car • Price agreed before we travel • 12-month guarantee • Seven years' experience

Lost car key replacement in Winchester comes down to two jobs at the car: a blade cut to your locks, and a chip your immobiliser accepts.

The blade comes from the lock itself when there's nothing to copy, read with a decoder and cut on the machine in the van. Car key cutting in Winchester like this covers laser-cut keys and the emergency blades hidden in smart fobs, not just the older flat keys.

The car immobiliser then has to learn the new key. Car key programming in Winchester also pairs the remote, sets up keyless entry where it's fitted, and lets us drop the lost key from the car's approved list on most models.

Remote car keys on a driveway

Transponder pairing

Coded to your immobiliser

Remote functions

Lock, unlock and boot tested

Spare & replacement keys

Keys made
at your car.

We come to you, cut the blade and programme the key on the spot — no towing, no dealer wait.

Your vehicle

Make, model or registration

Availability

Can You Do It Today?

Usually. Most cars get their replacement car keys in Winchester on the day we're called, anywhere in the city or its villages, without the original and without a tow.

Calls are taken until 10pm on weekdays and from 10am to 6pm at weekends. One call with the registration gets you the key type, the price and when we'll be there.

Auto locksmith in Winchester

Locked out
in Winchester?

Mobile service across Winchester and the surrounding areas, straight to where your car is parked.

Areas we cover

Badger FarmWeekeHarestockStanmoreKings WorthyOlivers Battery
Mobile
Insured
Local

Pricing

Car Key Replacement Cost In Winchester

What you'll pay depends on three things: the type of key, the car's immobiliser system, and whether you've still got one that works. We give you the figure from your registration before travelling, and nothing is paid upfront.

A spare copied from a working key costs least. Starting from nothing costs more, because the lock has to be read and the security system worked harder. Every price is given before anything is taken apart; if one symptom could be more than one fault, you hear each possible price on the phone first, then we confirm at the vehicle. Keys carry a 12-month guarantee. That's how car key replacement cost in Winchester is worked out on every job.

One thing worth checking with anyone you ring: are they the people who'll turn up? Some national brands and booking sites sell the job on to someone else, with their own margin on top. We don't.

Key types

Which Key Have You Lost?

The key type sets the job more than the badge on the bonnet does.

A plain transponder key or a flip key is the most straightforward, and car key cutting in Winchester for those is quick. Remote fobs add a pairing step. Smart and proximity keys, the ones that stay in your pocket, need keyless entry set up during car key programming in Winchester as well. Renault keycards are routine. On the limits: Volkswagen and Audi from about 2018 onwards, and many Mercedes-Benz from about 2013, go to the dealer once every key is gone. BMW we do at the car regardless of age, and many post-2018 Kias need a genuine key, starting from around £350 before programming.

Locksmith programming a car key beside a vehicle with a diagnostic tablet

The mobile workshop

Specialist equipment.
Right on your driveway.

Key cutting and programming, brought to your vehicle.

Cut to code

Precision cutting for a key that fits.

Matched to your car

Transponder and remote programming.

Careful entry

Specialist tools to protect your vehicle.

FAQ

Questions Before You Book

Is a replacement key fob in Winchester always a whole new key?

No. Where the electronics still work, the fix for a replacement key fob in Winchester might just be a new shell around them. A dead remote gets a brand-new one coded to your car, and only a failed circuit means a whole new key. Some keyless fobs, Honda's for one, only program if they match the original part number, so we check that first.

Bought a used car with one key? Are spare car keys in Winchester worth it?

Yes, and now is the cheapest time. Spare car keys in Winchester copied from a working key cost a fraction of what an all-keys-lost job does later, and they're cut and programmed at your home or work. Used cars sold with a single key are common, and most owners only notice when the one key goes missing.

Do you cover Volkswagen and BMW keys?

Yes. BMWs are done at the car whatever the age, every-key-lost FEM and BDC models included. Volkswagens with every key lost can be done at the car if they're older than about 2018; on newer ones we can add spares, but a full set lost means the dealer. We'll tell you which applies from the registration.

Can you come to a car park in the city?

Yes. Multi-storeys, park and ride sites, hospital and station car parks are all fine, because everything needed to cut and program a key is in the van. Tell us which car park, which level and roughly where the car is, and keep your phone on so we can find you quickly.

Will the old key still work?

On most cars it won't start the engine once the new key is programmed, because it's removed from the list of keys the car accepts. A missing blade can still physically open the door, so if the key went with your address, say so and we'll go through the options for your car.

Auto locksmith services

Every key problem,
one van.

Advanced programming, EEPROM and ignition expertise for everyday cars, premium vehicles and work vans. Seven years of practical automotive experience, brought to you.

Specialist electronics

Advanced programming & EEPROM

Specialist key and immobiliser work beyond standard coding.

OEM spec

Laser key cutting

High-security blades cut to factory code on site.

Dealer-level

Smart fob coding

Transponders and keyless remotes programmed to your car.

Roadside

All keys lost

No spare? We build a brand new key from scratch.

Same visit

Broken key extraction

Snapped in the door or ignition — removed and replaced.

Ignition specialist

Ignition repair & replacement

Stiff, jammed or worn ignition locks diagnosed and repaired.

Before you call

Before You Ring

A minute of preparation gets you an accurate price and a quicker visit.

If The Key Might Have Been Stolen

Report it to the police and tell your insurer, especially if your address or car details were with it. Then tell us when you call, so removing the old key from the car becomes part of the job rather than an afterthought.

Have These Within Reach

Have the registration, the V5C or your finance paperwork, and photo ID ready. For 2019-on Vauxhall, Peugeot and Citroën models, the V5C really matters: adding a key needs a security PIN, and that's bought from the manufacturer using your ownership details. For a lease or company car, get written permission from the owner before we arrive.

Across the city

Lost Car Keys In Winchester: The Park And Ride Problem

Plenty of lost car keys in Winchester go missing between a London train and a park and ride car park. The car is at Barfield, St Catherine's or South Winchester, the key is somewhere on the route home, and the last bus has gone.

That's exactly what mobile car key replacement in Winchester is for. We come to the park and ride, or to the car parks off Romsey Road by the hospital, and cut replacement car keys in Winchester at the car so you can get home. If it's late in the evening, call early so we can tell you whether it's tonight or first thing tomorrow.

Our work

Real keys. Real driveways.

Smart ForTwo — Replacement key
Smart ForTwoReplacement key
Audi Q3 — Spare smart key
Audi Q3Spare smart key
Toyota C-HR — Spare smart key
Toyota C-HRSpare smart key
Saab 9-3 — Steering lock and key repair
Saab 9-3Steering lock and key repair
Dacia Duster — Replacement remote key
Dacia DusterReplacement remote key

Your car. Your location. A clear next step.

7 years of experience450+ reviews12-month warranty

From the van

Key work around Winchester

View all
Peugeot 2008 smart key programmed in Winchester by SmartTech Auto Locksmiths, key and business card held in front of the vehicleMay 2026

Peugeot 2008

Smart key programmed

Smart key programmed on a Peugeot 2008 for a customer in Winchester, done on site from the SmartTech mobile workshop. The key was coded to the car's immobiliser through the diagnostic port, with remote buttons and keyless functions checked afterwards.

Winchester

BMW 3 Series replacement key coded in Winchester by SmartTech Auto Locksmiths, key and business card held in front of the vehicleJune 2026

BMW 3 Series

Replacement key coded

Replacement key coded on a BMW 3 Series for a customer in Winchester, done on site from the SmartTech mobile workshop. The key was coded to the car's immobiliser through the diagnostic port, with remote buttons and keyless functions checked afterwards.

Winchester

Hyundai i10 replacement remote key in Winchester by SmartTech Auto Locksmiths, key and business card held in front of the vehicleApril 2025

Hyundai i10

Replacement remote key

Replacement remote key on a Hyundai i10 for a customer in Winchester, done on site from the SmartTech mobile workshop. We matched the key to the registration, cut the blade and coded the transponder so the car started first time.

Winchester

How it works

From your call to your vehicle in Winchester.

  1. 01

    Call or text

    Tell us your car and what's happened. We explain the work and quote on the call.

    2 minutes

  2. 02

    We drive to you

    The van comes to your home, work or roadside with the tools to finish the job.

    Arrival agreed on the call

  3. 03

    Keys in hand

    Key cut and programmed at your car, tested with you before we leave.

    Same visit

Coverage

Across Winchester. Street by street.

Pick your area and check your postcode. If you're just outside, call — we often still come.

  • Badger Farm
  • Weeke
  • Harestock
  • Stanmore
  • Kings Worthy
  • Olivers Battery
SO23SO22SO21

What customers say

450+ five-star / 10-out-of-10 reviews across Google and Checkatrade

Transit Custom Ignition Repair.

"I cannot recommend Alec enough. My transit custom lock was not turning. I did not know Alec at this point and called another locksmith. To cut a long story short the other locksmith attempted a repair and then gave up, leaving me with a van I could no longer use. I called Alec who came out next day; he repaired the damage done by the other locksmith and custom made a replacement ignition barrel so one key still does the doors and the new ignition. I couldn't be more pleased. Price was very fair too!"
Verified reviewerPO12 · 12 March 2026

Sam chapman

"Did the work at a 3rd of the price of the dealership and I'm sure to a higher quality, the work was quick and professional. Could not recommend more!"
Google customera year ago (at screenshot)

Can work on most cars! Pricing is very reasonable! Fast reliable service!

"Absolutely spot on! After ringing about 15 different companies who said they couldn't help and one company even saying the series of my car doesn't exist I found smarttech who I contacted who could finally help! The next day he came out and I now have access and a new key to my car! Fast and efficient polite service! Highly recommend!!"
Checkatrade customerBH2 · 19 November 2025

Where we cover

Winchester and the surrounding area.

The outline shows the area we cover. Not sure if you're inside it? Call with your postcode and we'll confirm before you book.

ShirleyBitterneTottonHythe & Dibden PurlieuNew ForestLymingtonNew MiltonRingwoodSalisburyHavantGosportNetley & HambleLocks Heath & WarsashHedge EndBishop's WalthamSouthamptonPortsmouthEastleighWinchesterFareham
Coverage area · main towns highlighted · tap a pin for that area's page

Book today

Mobile Car Key Replacement In Winchester

Your registration, the car's location and a count of working keys: that's all we need to give you a price and a time.

For lockouts and everything else, see auto locksmith Winchester. Trade vehicles are covered by van key replacement in Winchester. Want a second key or a fob reprogrammed? See spare car keys or car key programming. We also make keys in Southampton, Eastleigh, Fareham and Portsmouth.