About us

Securing your environment since 1983

Established more than 35 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.

With an enviable reputation and thousands of satisfied clients spread over the domestic and commercial sectors, Class A Alarms aims to deliver a caring, prompt and efficient service combined with high quality workmanship and value for money.

Class A Alarms is approved under the NSI Gold Scheme with respect to the design, installation and maintenance of electronic security systems including, Intruder Alarms, CCTV and door access control systems in accordance with BSEN ISO 9001:2015 and the NSI Quality Schedule SSQS 101 so you can be confident that your security requirements will be dealt with professionally and installations will be carried out to the highest standard.

Registered company number: 04631131
VAT number: 380265163
Registered in England and Wales

143 Derby Road, Denby, Ripley, Derbyshire, DE5 8RA