Welcome to ZSL Security Systems

Derbyshire based NSI Silver Approved installation & maintenance

Years Experience
Emergency Callouts
Days Per Year


Protect your home and business with us.

Affordable Derbyshire Security Systems

ZSL Security Systems offer tailor-made system systems for both home and businesses using the latest technology ensuring your property and valuables are kept safe. We are a family-run business with a small team of NSI Gold engineers who are always willing to go the extra mile and strive for quality installations.

No matter your budget, we aim to provide the best security solution and whether it’s an Intruder Alarm system or CCTV system to protect your pride and joy on the drive we are here to help.

Our History

Established in 2006, our forward-thinking business has evolved to become a premium brand renowned for its excellent service offering a vast range of Intruder Alarm services.

As NSI Gold company our knowledge and expertise ensure that you receive outstanding service, expert knowledge of all major intruder alarm systems, the latest technology, and competitively priced service contracts that ensure your home and business are kept safe and secure.

Our experienced and dedicated team install, maintain and repair intruder alarms, Police Monitored Systems, and CCTV in Derbyshire and around the East Midlands area.

A family-run business, with a large knowledge base, we install state-of-the-art security systems as well as maintain and upgrade systems – no matter how old.  As one of the region’s leading installers of wireless security systems, we are keen to keep up-to-date with the latest technologies that offer our customers the best possible protection. Wireless technology also offers flexible installation and maximum protection with the least disturbance to decoration and flooring.

From classic intruder alarm systems and wireless alarms to premium, Police Monitored Security systems and CCTV, you can be safe in the knowledge that our NSI Gold standard security system will give you peace of mind. With a wide range of customers that includes both domestic and commercial Castle Alarms can provide you with security solutions to suit your budget. Whether you are looking for a new intruder alarm, CCTV system, renovation of an existing alarm, or maintenance, ZSL Security Systems can offer you a tailor-made system to suit your needs.

Contact Us

Use the form below to get in touch with us.
Fill out this field
Fill out this field
Fill out this field
Fill out this field

Leave a Reply

Your email address will not be published.

Fill out this field
Fill out this field
Please enter a valid email address.