Quick answer

The best car key replacement service is the one that can cut, programme and test the key at your location, rather than simply selling a shell or sending you to a dealership. For Devon drivers, a mobile auto locksmith is usually the practical route because the vehicle often cannot be moved when all keys are lost.

This guide was refreshed for 2026 because the older 2025 article no longer matched the rebuilt DB Car Keys site structure or the current service pages. The goal is to answer the question properly, keep the advice useful for drivers, and route urgent cases to the right service page instead of leaving readers stuck in a generic blog post.

DB Car Keys is a specialist mobile auto locksmith based in Honiton and covering Devon. Dean works on automotive key systems every day: emergency vehicle unlocking, lost keys, spare keys, transponder programming, key fob repairs, immobiliser diagnostics and broken key extraction. If you need help now, call 07830 249408 rather than trying risky shortcuts.

What to check before you call

When you notice the problem, slow down and identify the exact situation. Are the keys locked inside, completely lost, broken in the ignition, failing to start the vehicle, or only failing to unlock remotely? That one detail changes the correct solution. If the vehicle is on a road, near a junction, in a dark car park or blocking access, move yourself to a safe place first. National Highways also gives useful roadside breakdown advice for situations where a vehicle is stopped in a dangerous location: National Highways breakdown guidance.

• Proof of ownership
• Vehicle make, model and year
• VIN or registration
• Key type required
• Whether all keys are lost
• Current location and access to the vehicle

What not to do

Do not buy the cheapest online key and assume it will programme. Many aftermarket fobs look correct but use the wrong chip, frequency or board. A wrong key can waste time, fail pairing and still leave the vehicle unusable.

Most expensive locksmith jobs start as small problems made worse by force. A stuck key, weak remote battery or lockout can become a damaged door, snapped blade, seized barrel or immobiliser lockout if the wrong method is used. When in doubt, take photos of the key, dashboard warning lights and the vehicle location, then send them by WhatsApp so the technician can advise properly.

How lost car keys fits into this problem

Replacement keys generated on-site when the original key is missing.

Car key replacement becomes urgent when there is no original key to copy. In that situation the technician has to identify the vehicle, cut the key to the correct blade profile and create or programme the electronic part of the key. A mobile service is useful because the car does not need to be recovered to a workshop or left at a dealership for days.

A proper replacement process also considers security. If a key is truly lost, the old key may need to be removed from the vehicle memory where the vehicle supports it. This is especially important when the key could have been stolen rather than simply misplaced.

For a dedicated service overview, read the Lost Car Keys page. It explains the service in more detail and gives Google a clear internal link from this supporting guide to the money page.

How the mobile visit works

A mobile auto locksmith brings the workshop to the vehicle. For DB Car Keys that means AUTEL diagnostic equipment, Xhorse key programming tools, key blanks, remote fobs, extraction tools and non-destructive entry equipment. The exact method depends on the vehicle. Some jobs are simple unlocking tasks; others involve cutting a key blade, pairing a chip, coding a remote, diagnosing an immobiliser fault or checking why the vehicle will not accept a key.

1. Call or WhatsApp. Send the vehicle make, model, year, registration and location.
2. Confirm the method. Dean checks whether the job is unlocking, programming, extraction, diagnosis or full replacement.
3. Get a clear quote. The price is confirmed before travelling where the details allow it.
4. On-site work. The vehicle is opened, the key is cut or programmed, or the fault is diagnosed at your location.
5. Final test. Locking, unlocking, starting and remote functions are tested before the job is closed.

Key types and technology explained

Vehicle security matters throughout the job. Modern vehicles use immobilisers, transponder chips, rolling codes, keyless-entry systems and ECU authorisation to prevent simple key copying. That is why DB Car Keys links blog readers into detailed service pages rather than treating every problem as the same. For electronic starting issues, the main pages are car key programming, transponder keys and immobiliser diagnostics. For physical key and lock problems, use emergency vehicle unlocking or broken key extraction.

Older vehicles may use a standard blade and transponder chip. Newer vehicles may use remote flip keys, smart keys, proximity fobs, key cards or push-button start systems. A visual match is not enough; the frequency, chip, circuit board and blade profile all need to match the vehicle. This is the difference between a key that looks right and a key that actually starts the car.

Coverage across Devon, Dorset and Somerset

Coverage includes Devon, Exeter, Plymouth, Honiton, Torquay, Barnstaple, Newton Abbot and surrounding towns.

The local coverage pages are important because they show where the mobile unit can attend. Blog posts should not replace the main location pages; they should support them. That is why this guide links to service pages and area pages rather than repeating the same location keyword over and over.

Vehicles and common callout examples

The vehicles seen across Devon, Dorset and Somerset include everyday hatchbacks, vans, family SUVs, farm vehicles, prestige cars and commercial fleets. DB Car Keys regularly supports makes such as Ford, Vauxhall, BMW, Audi, Volkswagen, Mercedes, Toyota, Nissan, Peugeot, Citroen, Renault, Kia, Hyundai, Honda and Land Rover. For the full vehicle list, use the brands we cover page.

Typical calls include a Ford Transit spare key for a tradesperson, a Vauxhall Astra lockout at home, a BMW key programming job after all keys are lost, an Audi remote fob that stops communicating, a Renault key card issue, a Toyota key snapped in the ignition or a Land Rover proximity fob replacement on a rural property.

Cost, quotes and avoiding surprises

The cost depends on the vehicle make, model, key type, location, whether an original key is available and whether programming is required. DB Car Keys avoids fixed online figures because the right price for a basic spare blade is different from a keyless proximity fob, an all-keys-lost job or an immobiliser fault diagnosis. The useful promise is transparency: call 07830 249408, explain the vehicle and location, and Dean will confirm the likely method and price before travelling. This is safer than a vague quote that changes on arrival. For general consumer context on vehicle breakdown and lost-key situations, you can also read the RAC lost car key advice and the AA lost car key guidance.

Dealer, breakdown provider or auto locksmith?

Main dealers can be the right option for some software-restricted vehicles, but they often require booking, proof checks and recovery if the vehicle cannot be driven. Breakdown providers can help with safety and recovery, but they may not be able to cut and programme a replacement key at the roadside. A specialist mobile auto locksmith sits between those options: fast attendance, vehicle entry, key cutting, key programming and diagnostics at the vehicle.

For insurance-related questions, always check your own policy wording. GOV.UK explains the legal requirement for vehicle insurance here: vehicle insurance on GOV.UK. If a key may have been stolen, also think about vehicle security and whether the missing key should be deleted from the car memory.

Related DB Car Keys services