With offices in both Doncaster and Sheffield, ICU2 Security is a locally-owned and operated business that designs, installs, and maintains fire and security systems for commercial and residential properties. Our success is maintained through our commitment to excellence and our dedication to high-quality customer service. 

We provide cost-effective solutions for all your security needs, from small residential burglar alarms to large commercial monitored security systems. With a silver NSI certification, we raise the bar in industry technical standards with the capability to install almost any security or fire systems on the market today. Security is in our DNA, and that’s why customers across the UK choose our ICU2 Security systems to provide reliable protection around the clock.