YOUR CAR
CAN BE STOLEN
in under 60 seconds with no alarm triggered
Car Trackers & Immobilisers in Hertfordshire
Protect your vehicle across Hertfordshire’s towns and villages. Our GPS trackers and immobilisers defend against relay theft, key-cloning, and van break-ins.
On this page
Hertfordshire’s proximity to London and its excellent road links, including the M1, M25, A1(M), and M11, make it a hotspot for vehicle theft. The county covers major postcode areas including St Albans (AL), Watford (WD), Hemel Hempstead (HP), Stevenage (SG), and Enfield (EN). Luxury vehicles, SUVs, and high-performance cars are frequently targeted by organised crime groups who use Hertfordshire’s motorway network for rapid getaways. LockCar brings professional relay immobiliser and GPS tracker installation to all Hertfordshire postcodes via a fully mobile fitting service.
Vehicle theft across Hertfordshire
Hertfordshire has seen a surge in keyless vehicle theft, particularly in affluent areas like St Albans (AL1-AL4), Harpenden (AL5), and Radlett (WD7). Thieves target high-value SUVs from Range Rover, BMW, and Mercedes-Benz parked on driveways. The M25 and M1 provide quick escape routes, often leading to shipping ports or chop shops within hours.
Watford (WD17-WD25) and Hemel Hempstead (HP1-HP3) have also experienced significant vehicle crime, including relay attacks and commercial van theft. Tool theft from vans is a major issue for tradespeople across the county. The LockCar immobiliser range provides an effective physical barrier, cutting the starter circuit independently of the factory system.
Rural areas such as Tring (HP23), Buntingford (SG9), and Much Hadham (SG10) are not immune. Thieves often target remote properties where vehicles are left in unsecured driveways or barns. A professionally fitted GPS tracker ensures that even if a vehicle is taken, its location can be immediately relayed to the owner and police.
Hertfordshire Constabulary urge drivers of keyless-entry vehicles across the county to use a Faraday pouch for key fobs at home AND install a physical relay immobiliser. The pouch blocks the signal when the key is stationary; the immobiliser protects you when you are away from the vehicle with the key. Both layers are essential for comprehensive security.
Relay attacks in Hertfordshire — the specifics
Hertfordshire’s position within the home counties, with direct access to London and the national motorway network, makes it a prime target for vehicle thieves. Criminals can move between St Albans, Watford, and Stevenage within minutes. This mobility means that the risk is not limited to specific postcodes — any address in Hertfordshire is within range of organised theft rings.
Residential relay attacks typically occur between 10pm and 4am, with criminals working in pairs. Properties with keyless-entry vehicles parked on driveways or streets visible from the road are at highest risk. Commuter belt towns like Hitchin (SG4), Letchworth (SG6), and Baldock (SG7) are particularly vulnerable due to their proximity to the A1(M).
LockCar immobiliser & tracker range for Hertfordshire
Hertfordshire and surrounding areas covered
Our Hertfordshire mobile service covers all major postcode districts including AL1-AL10 (St Albans, Harpenden, London Colney), EN1-EN11 (Enfield, Waltham Cross), SG1-SG19 (Stevenage, Letchworth, Hitchin, Baldock), WD3-WD25 (Watford, Rickmansworth, Bushey), and HP1-HP23 (Hemel Hempstead, Berkhamsted, Tring). We also cover adjacent areas including Luton (LU) and parts of Bedfordshire.
Do you cover St Albans, Harpenden, and Radlett as well as Watford?
Yes — our Hertfordshire service covers the entire AL, WD, HP, SG, and EN postcode areas. All Hertfordshire neighbourhoods are within our mobile fitting radius.
Can I get a GPS tracker fitted at my workplace in Hertfordshire?
Yes. We can install at your home, workplace, or any secure parking area. For commercial fleet installations across Hertfordshire, we offer discounted multi-vehicle rates.
How does LockCar’s immobiliser differ from the factory-fitted one?
Factory-fitted immobilisers communicate with the key fob via radio signal — they can be defeated by relay amplification. LockCar adds a physical relay break in the start circuit that requires a separate, encrypted authentication (proximity tag, Wi-Fi signal, or app) to close. A relay amplifier cannot replicate this signal — the two systems are fundamentally different in their vulnerability profile.
What is the LFM Fleet Platform for Hertfordshire businesses?
The LockCar Fleet Monitoring Platform (LFM) is a web-based dashboard for businesses managing multiple vehicles. It centralises location, immobilisation status, camera feeds, and trip history for every LockCar-equipped vehicle in your Hertfordshire fleet. Contact us for fleet pricing for five or more vehicles.
Book Hertfordshire installation
AL · EN · SG · WD · HP · Same-day available across the county
WhatsApp to book → Call VictorHertfordshire
























