Britain's only island city is densely parked - IMMOSTOP gives Portsmouth drivers dual, phone-controlled immobilisation that beats keyless theft.
Portsmouth's tight streets in Southsea, Fratton and Cosham leave almost every car on the road overnight, often bumper to bumper. With keys sitting just inside the front door, relay thieves can clone a signal and be gone before anyone notices.
IMMOSTOP changes the maths. The vehicle is held immobilised at two separate points and only releases for your paired phone, so a relayed key is dead weight. Arming is automatic when you walk away, and the parked-car pin helps on Southsea's busy seafront bays.
Two independent cut points, one app — far harder to defeat than a single immobiliser or alarm.
Cloning the key isn’t enough — the car stays immobilised until your authorised phone releases it.
A map pin remembers where you left it — handy in Portsmouth car parks and busy streets.
We install across Portsmouth and the surrounding area, including:
Do you install across Portsmouth?
Yes - Portsmouth and surrounding Gosport, Havant and Waterlooville. Send your postcode and vehicle for a quote.
My street is packed - does on-street parking matter?
No problem - dense on-street parking is exactly where relay theft thrives, and where IMMOSTOP is most valuable.
What if I lose my phone?
You can disarm with your password and add or remove authorised phones, so a lost phone never locks you out.
Tell us your vehicle and we’ll be in touch about fitting IMMOSTOP in Portsmouth.