UPVC door owners must make 30-second security check today — 'not tomorrow'Security experts warn that a simple check of your UPVC door lock could prevent burglars using a common break-in technique that takes just secondsView 2 Images These doors hide a serious security risk (Image: Getty)Home security isn't something to take lightly, and there's one element of your system that could leave you vulnerable. Specifically, the section where your key slots into the door, referred to as the cylinder. ‌Craig Andres, representative for The Perspicacity Life, explained that contemporary doors are more vulnerable to burglars forcing their way inside. ‌Many modern properties feature a euro profile cylinder on their locks - the keyhole barrel commonly found on numerous uPVC and composite doors, reports the Express. Article continues belowRather, just a lock repair should resolve your problem — and that's considerably cheaper than dealing with a burglary.