• High Definition CCTV systems can be installed and maintained within your home or business. All your images can be viewed remotely from you Smart device, laptop or PC.
  • Class A Alarms install and maintain a wide range of bespoke wired and wireless intruder alarm systems for domestic and commercial applications.
  • Class A Alarms offers a range of access control systems where external entry points and internal doors can be controlled using either standalone or computer based equipment ensuring complete control.


Established more than 30 years ago, Class A Alarms has grown to be a leading security alarm company offering services throughout six counties – Derbyshire, Leicestershire, Nottinghamshire, Lincolnshire, Staffordshire and South Yorkshire.

  1. 24 Hour 365 Days

    Class A Alarms provide a 24 hour call-out service 365 days of the year with 4 hour response guaranteed for all our customers with a current maintenance agreement.

  2. NSI Gold Accredited

    Class A Alarms were awarded NSI Gold accreditation on 19th May 2003 and have continued installing and maintaining intruder alarms, CCTV systems and door access systems to the required high standard ever since.

  3. ISO 9001:2015

    ISO 9001 is the international standard that specifies requirements for a quality management system (QMS). We use this standard to demonstrate our ability to consistently provide products and services that meet customer and regulatory requirements.

  4. Obligation Free Survey

    Please contact us if you would like one of our friendly surveyors to visit you at your home or place of work to discuss you security requirements. You can call our office or click the ‘Free Survey’ button below, complete the form and we will call you back promptly.

  5. Helpful & Friendly Staff

    All staff members are employed directly by Class A Alarms so we can guarantee you will have a dedicated point of contact.