How Much Does a Car Key Cost in the UK?
Replacing a car key in the UK typically costs £120 – £300 for standard remote keys, and £280 – £450 for smart / keyless models. Below is the full 2026 price guide from a working mobile auto locksmith — no call-out fees, no hidden charges.
2026 UK price guide
All prices fully fitted, including parts, cutting, programming, deletion of old keys.
| Service | Standard remote key | Smart / keyless |
|---|---|---|
| Lost car keys (all keys lost) | £180 – £240 | £280 – £450 |
| Spare car key | £120 – £180 | £180 – £250 |
| Replacement car key (broken / worn) | £140 – £200 | £200 – £300 |
| Key fob replacement | £95 – £140 | £180 – £220 |
| Car key programming only | £100 – £140 | £140 – £180 |
| Emergency car unlock | £120 | £120 – £180 |
| Broken key extraction | £120 | £120 – £180 |
Mobile — we come to you
Mobile UK service. We come to your driveway, office or roadside.
Tested before we leave
Every key and fob is checked on the car with you.
Fixed prices
Confirmed on the phone before we dispatch. No call-out fees.
What changes the price of a replacement car key?
- Key type: Basic transponder keys are cheapest. Remote fobs, flip keys, and proximity smart keys each add cost because of chip and programming complexity.
- Vehicle make & age: Premium brands (BMW, Mercedes, Audi, Range Rover) require dealer-grade tools and OEM blanks, so a smart key for a 2022 BMW costs more than a 2012 Ford Fiesta key.
- Lost-all-keys vs spare: When you've lost every key, we must generate a key from the immobiliser data — slower than cloning from a working key, hence the price gap.
- Time of day: We don't charge nights-and-weekends surcharges, but we always confirm a fixed price on the phone.
- Location & accessibility: We cover the UK without a call-out fee for our service area. Remote locations or motorway recoveries may be quoted slightly higher.
Car key cost FAQs
How much does it cost to replace a car key in the UK?
Replacement car keys in the UK typically cost between £120 and £300 fully fitted. Basic remote keys for cars like a Ford Fiesta or Vauxhall Corsa start around £140. Smart keys for newer BMW, Mercedes, Audi and Range Rover models cost £250–£450 because of the chip and dealer-grade programming required.
Why is a dealer-replacement key so much more expensive?
Main dealers charge for the key, the programming, the diagnostic time, the labour rate of a franchised workshop and (often) the cost of recovering your car to their site. A mobile auto locksmith carries the same dealer-grade tools to your driveway, with none of those overheads — usually 40–60% cheaper for the same OEM-quality key.
Is a replacement car key covered by my insurance?
Some comprehensive UK car insurance policies include key cover (e.g. RAC, Direct Line, LV=) up to £500–£1,500. Check your policy schedule. Even with insurance, calling a mobile auto locksmith is usually faster than waiting on a dealer slot.
How much does it cost to program a car key?
Programming-only (you already have the key) starts at £100 for most cars and £140–£180 for keyless / smart-key vehicles. If you bought a fob on eBay we can usually pair it if it's the correct OEM spec — bring the part number when you call.
How much is a spare car key in the UK?
Spare keys are cheaper than lost-all-keys jobs because the existing key speeds up programming. Expect £120–£180 for most remote keys and £180–£250 for smart keys.
Are mobile auto locksmith prices fixed before they arrive?
Yes — at AutoLocksmith4U we confirm a fixed price over the phone once we know your registration, make, model and key type. No call-out fees, no fuel surcharges, no surprise extras.
Get a fixed price in 60 seconds
Tell us your registration and key type — we'll confirm an exact UK price on the call.
07347 492 822