Do you install or service CCTV? Perhaps you fit and maintain intruder alarms? Despite your finest efforts these devices may not always work, putting property and lives at risk. That's why you need "failure to perform" or "efficacy" insurance. Claims can quickly run into the hundreds of thousands, even millions, placing your own livelihood in peril. That's why many professional bodies such as NSI stress the benefits of efficacy. Act now to protect yourself and your company!