Chester SIA Badged Security Guards. Spartan 24 Hour Security provide Security Guards in the Chester area that are fully insured and vetted, are hand picked and have a vast amount of security experience covering Hotel Security. Guards have also worked as Door Supervisors or Close Protection Operatives. All of our Security Guards are fully SIA licensed, CRB checked and insured. Whether you are operating a distribution depot, managing a construction site or running a small business office, preventing unauthorised access is crucially important to avoid theft or incidents.