Based in Welwyn Garden City and specialists in intruder and CCTV systems, as well as offering all other building services. All their installations are covered by a 12-month guarantee for labour and parts and are fitted by friendly and professional tradesmen. They also offer repair and maintenance services for new and existing systems. Serving all of Welwyn, Hertfordshire and London.

Harling Security are experts in physical security solutions. The products provided by the company includes security gates, fencing, access control systems, barriers and turnstiles, fire shutters and curtains, security cages, security grilles, and many more.

Welwyn Garden Alarms Limited is a NSI (NACOSS) Gold security installer. The company offers a variety of products and services including intruder alarms, fire alarms, access control, CCTV, automated gates, integrated systems, electrical installations, extinguishers, and emergency lighting.