Short answer: for most drivers, yes — but only if the device is genuinely Thatcham approved and you actually tell your insurer. Here's how it works in practice.
Why insurers care about Thatcham approval
Thatcham is the UK's independent vehicle security testing body. When your insurer sees a Thatcham category listed on your policy, they're pricing in a measurably lower theft risk — because the approval process tests the device against real theft methods, not just marketing claims. That's why unapproved or grey-market immobilisers don't earn any discount at all, no matter how effective they might seem.
How much you can expect to save
Typical reductions sit in the 10-20% range, though it varies by insurer, postcode, and your existing no-claims history. On an average Essex premium, that discount alone can cover a meaningful chunk of the £499 fitting cost within the first couple of years.
The saving compounds every year you keep the policy — it isn't a one-off discount that disappears at renewal.
How to actually claim it
- Get the Scorpion X fitted and receive your Thatcham certificate
- Contact your insurer directly, or update it via your online account at renewal
- Provide the certificate reference and fitting date when asked
- Confirm the updated premium reflects the change before your next payment
Get Fitted, Get Certified, Get the Discount
Thatcham fitting certificate included with every install across Essex.
Get My Free Quote →Frequently Asked Questions
Do I need to tell my insurer before or after fitting?
After — you can't claim the discount until the device is actually installed and you have your certificate. Most insurers just need you to call or update your policy online once it's done.
Which insurers recognise Thatcham approval in Essex?
Thatcham approval is a national UK standard, not specific to any region, so any UK insurer operating in Essex recognises it the same as anywhere else in the country.
Does the discount apply automatically once fitted?
No — you need to actively inform your insurer and provide the fitting certificate. It won't be applied automatically just because the device exists in your car.