If you have lost your car keys, you do not need a tow truck or a dealership appointment to get moving again. Search the likely places for an hour, secure the car, check whether your insurance or breakdown cover helps, then call a mobile auto locksmith who can cut and programme a new key at your car, even with no spare. Here is how that works, what it costs in the UK, and what to do if you think the keys were stolen.
TL;DR
- Retrace your steps first: many lost keys turn up within a few hours in coat pockets, bags or at a self-checkout.
- If they stay lost, check your insurer and breakdown provider before you pay for anything, then think about whether theft is possible.
- With no spare, a locksmith can usually cut and programme a key without the original. Have photo ID, proof of ownership and your VIN ready.
- UK averages are around £160 for a standard key, £280 for a keyless key and £320 for a remote key. Our own prices start at £120 and £150 for a standard and remote key.
- If the keys may have been stolen, report it to the police and have the old keys deleted from the car.
Table of Contents
- First, search properly for an hour
- Secure the car and think about theft
- Check your insurance and breakdown cover before you pay
- Your options for a replacement key
- Lost your only key? Having no spare is fixable
- Know your key type, because it drives the price
- What a lost car key costs in the UK
- Why we think a mobile locksmith is the sensible route
- What happens when we replace your lost key
- If the key may be stolen: delete it from the car
- Lost keys and a locked-out car
- Get your lost car key replaced on site
- How to avoid doing this again
- FAQ
- Sources
First, search properly for an hour
It sounds obvious, but it is the cheapest fix there is. Check coat and trouser pockets, bags, kitchen counters, your desk and anywhere you paid for something. Uswitch advises retracing your steps and checking spots such as work desks and supermarket self-checkouts, because many lost keys turn up within a few hours.
A few practical habits help:
- Phone the last place you visited. Shops, cafés, gyms and car parks often hand lost keys in at the desk.
- Look inside the car, including the footwell, door pockets and under the seats. Keys dropped in the boot are a classic.
- Ring your key's tracker if you attached one. If you have a Bluetooth tag on the ring, its app can show the last place it connected. A car key itself does not normally report its location, so without a tag there is nothing to follow.
- Ask everyone who has driven the car or been in the house.
If an hour of looking gets you nowhere, stop searching and start fixing. Every hour you wait is an hour the car is stuck, and possibly an hour the keys are in someone else's hands.
Secure the car and think about theft
Before anything else, ask one question: could someone have taken them? A set lost on a night out, or a bag taken with your driving licence or post inside, is a different problem from keys that went missing at home.
If you think the keys were stolen, Uswitch says to report it to the police for a crime reference number and tell your insurer. A policy may then pay towards replacement keys, lock changes or immobiliser reprogramming. The crime reference number matters, because key cover claims usually ask for one.
Leave the car where it is if it is somewhere safe and lit. If it is on a road or in a car park you cannot rely on, move it with a spare key or arrange recovery to a secure place.
The security point is simple. A lost key that still works is a working key to your car for whoever finds it. Replacing the key is only half of the job. The second half is making the old one useless, which we cover below.
Check your insurance and breakdown cover before you pay
This is the step most people skip, and it can save real money.
Car insurance key cover
Some policies include key cover as a standard benefit and others sell it as an optional add-on. esure's policy booklet shows the kind of conditions to look for: a policy limit, a time limit for notifying the insurer (3 days in its optional key cover) and documentation such as a crime or lost property number. Also ask whether a claim affects your no-claims bonus.
Do not assume you are covered. A Competition Commission survey found that only 24 per cent of respondents said they had key loss cover, and only 9 per cent answered both of its test questions correctly. That survey dates from 2012, but the lesson holds: read your own policy documents.
Breakdown cover
Breakdown policies differ a great deal. As one example, Admiral's breakdown terms say a vehicle with lost or broken keys is taken to the nearest garage or another destination within 10 miles, and that a patrol is sent if the keys are locked inside. Other costs are at your expense. In other words, breakdown cover often moves the car but may not make you a key.
Call your insurer and your breakdown provider, ask exactly what they pay for, and get the answer before you book anyone. If they will only recover the car to a garage, a mobile locksmith who comes to the car may be the quicker route.
Your options for a replacement key
There are three routes, as Autotrader sets out: your breakdown provider, a mobile auto locksmith, or a car dealership.
| Option | What it involves | Speed | Typical downside |
|---|---|---|---|
| Dealership | Car taken or towed to the dealer, key ordered and coded | Often days, with an appointment | The same source says it may be the most expensive route, though the key is like-for-like |
| Breakdown provider | Recovery or help, depending on the policy | Depends on cover | May move the car without supplying a key |
| Mobile auto locksmith | Technician comes to the car, cuts and programmes on site | Often within the hour | Check certification and ask for a price first |
Autotrader notes that auto locksmiths can usually cut all types of keys quickly and are usually cheaper than a key from the manufacturer. Because the work happens where the car is parked, you avoid recovery costs too.
Lost your only key? Having no spare is fixable
This is the situation behind most searches for "lost car key no spare", and it is less of a crisis than it feels. A locksmith or dealership can usually cut and programme a key without the original, according to Confused.com. The process is called an all keys lost job, and it works by reading the car's security data and programming a new key to match.
What you need to have ready:
- Photo ID such as a passport or driving licence
- Proof of ownership: the V5C logbook, a purchase invoice or a finance agreement
- The registration and VIN, found on the V5C, the windscreen base or the door pillar
- The make, model and year, plus the key type if you know it
A responsible locksmith will ask for ID and proof before cutting a key, because the same service in the wrong hands is how cars get stolen. If someone offers to make a key with no questions asked, treat that as a warning.
For a closer look at what is possible on the roadside, read our guide on whether a locksmith can make a car key on site and what the five checks are.
Know your key type, because it drives the price
When you phone a locksmith, the first question is what sort of key you had. Here is a plain guide:
- Standard or mechanical key: a metal key with no chip or buttons. Older cars, and some basic work vans.
- Transponder key: a plastic head with a chip inside. The car will not start unless the chip is recognised. No buttons.
- Remote key: a key with locking and unlocking buttons, often with a flip blade, and a chip.
- Keyless or smart key: a fob you keep in your pocket. The car unlocks as you approach and starts with a button. If this is yours, see our guide to a lost smart key and how it can be replaced without a tow.
If you are unsure, give the locksmith the registration and they can usually tell from the make, model and year.
What a lost car key costs in the UK
The cost of replacing a car key in the UK as of June 2026 depends mainly on key type. According to Confused.com, citing Checkatrade, averages are around:
| Key type | Average UK cost |
|---|---|
| Standard mechanical key | £160 |
| Keyless or smart key | £280 |
| Remote locking key | £320 |
Premium models can cost significantly more, and prices and waiting times vary by provider, so get at least two quotes.
Our own published prices, for comparison: a standard key starts from £120 and a remote key from £150, as listed on our Ford key page. Key programming and lockouts also start from £120, and the emergency callout fee starts from £120. The final price depends on your make, model and key type, so we quote before we start.
What to ask for in a quote
A price that looks low can grow. Ask each provider:
- Is the callout or travel charge included?
- Does the price include cutting, programming and the key itself?
- Is VAT included?
- Does it cover deleting the lost key from the car?
- What is the estimated arrival time?
None of that is awkward to ask. A good locksmith expects it.
Why we think a mobile locksmith is the sensible route
We take a lot of calls from people who assume that lost keys mean the car must be towed to a dealer. In most cases it does not.
Our vans carry the diagnostic and programming equipment to do the work at the roadside, at your home or at your workplace, usually within 30 to 60 minutes of arriving. That means no recovery bill, no days without the car and no waiting for a part to be ordered in.
Our technicians are licensed, insured and SERMI-certified, and we work on a wide range of cars and vans, including modern vehicles with complex security systems. We would rather you have a key in your hand and the old one deleted than a car sitting on a forecourt.
If you have lost every key, ring us with your registration and we will tell you what the job involves before we set off.
James
What happens when we replace your lost key
A typical on-site job runs like this:
- You call with the registration, make and model. We confirm the key type and give you a price.
- We verify ownership. You show ID and proof the car is yours.
- We arrive where the car is. In Essex and Hertfordshire that covers areas such as Harlow, Chelmsford, Brentwood, Epping, Bishop's Stortford and Braintree.
- We cut and programme the new key using on-site diagnostic equipment.
- We delete the lost key so it no longer starts the car, which is especially important if theft is possible.
- We test it, including the remote functions, before you pay.
If you want more detail on timings and what to expect, see our guide to onsite car key replacement in Essex and Hertfordshire. The programming side is explained in our article on car key coding.
If the key may be stolen: delete it from the car
Losing keys at home is annoying. Losing them in circumstances where someone could connect them to your car and address is a security issue. Report it to the police, tell your insurer and ask for stolen key deletion and reprogramming. The new key is then the only one the car accepts.
This is backed by the wider evidence on vehicle security. A Home Office report on vehicle crime found that electronic immobilisers made an important contribution to falling vehicle theft in England and Wales. An immobiliser only protects you if the keys it recognises are keys you still control, which is why deletion matters.
Lost keys and a locked-out car
Sometimes the problem is not that the keys are gone, but that they are visible on the seat. If your keys are inside the car, you do not need a new key at all. A non-destructive entry gets you in without damage. Our guide to keys locked in the car explains what happens, and our car lockout service starts from £120.
Get your lost car key replaced on site
If you are in Essex or Hertfordshire and have lost your keys, we can come to your car, programme a new key and remove the old one from the system. We handle cars and vans, including all keys lost situations where there is no spare.
See our key programming service, browse all our services, or head to our home page to get in touch. Van owners can ask about van key replacement too, so a work vehicle is not off the road for long.
How to avoid doing this again
- Get a spare made now. Cutting a copy from a working key is quicker and cheaper than an all keys lost job. Our key copying and cutting service covers this.
- Attach a Bluetooth tag to the ring.
- Pick a fixed home for the keys, such as a hook by the door.
- Do not label keys with your address or registration.
- Check your key cover at renewal and note the notification time limit.
FAQ
What should I do first if I lose my car keys?
Search your usual spots and retrace your steps, then phone the last places you went. If they are still missing, check whether they could have been stolen, contact your insurer and breakdown provider, and book a mobile auto locksmith.
Can I get a new car key if I have no spare?
Yes. A locksmith or dealership can usually cut and programme a key without the original. You will normally need photo ID, proof of ownership and the VIN.
How much does it cost to replace a lost car key?
UK averages are about £160 for a standard key, £280 for a keyless key and £320 for a remote key, and premium cars can cost much more. We charge from £120 for a standard key and from £150 for a remote key.
Is it possible to track a lost car key?
Only if you attached a Bluetooth tracker or tag beforehand. Its app can show where it last connected. A standard car key has no tracking of its own, so without a tag the realistic route is a replacement.
Is losing car keys a big deal?
It can be if the keys could be linked to your car and address, because they would still work. Report suspected theft, tell your insurer and have the lost key deleted from the car.
Sources
- Lost car keys: Does car insurance cover replacement keys? (Uswitch)
- What to do if you've lost your car keys (Confused.com)
- Seven steps to get a car key replacement (Autotrader)
- Admiral breakdown cover terms
- esure motor insurance optional extras booklet
- Private Motor Insurance: Analysis of add-ons (Competition Commission)
- Reducing criminal opportunity: vehicle security and vehicle crime (Home Office)