Smart Home Automation, Security Systems & Product Supply
Digital21 is a specialist technology company based in Johannesburg, focused on smart home automation, security system installation, and the supply of professional security products across Gauteng.
We design, install, upgrade, maintain, and supply complete systems for homes and businesses — combining lighting control, security, CCTV, access control, and automation into fully integrated solutions.
Our goal is to deliver reliable, scalable, and easy-to-use technology that improves security, convenience, and control.
What We Do
Digital21 provides complete end-to-end solutions, including:
- Smart home automation systems
- Alarm system installation and upgrades
- CCTV and surveillance systems
- Access control and intercom systems
- Clipsal C-Bus lighting automation
- Control4 smart home integration
- Security system fault finding and repairs
- System upgrades and modernisation
- Supply of security products and components
We not only install systems — we also supply quality security and automation equipment for residential and commercial projects.
Security Products We Supply
In addition to installations, Digital21 supplies a wide range of professional security products, including:
- Paradox alarm systems and accessories
- Motion detectors and outdoor PIR sensors
- Door and window contacts
- Alarm keypads and remotes
- CCTV cameras and recording systems
- Access control devices
- Automation components and modules
- Smart home integration devices
This allows us to support installers, contractors, and end-users with reliable equipment and expert advice.
Our Approach
We focus on delivering well-designed, practical, and reliable systems tailored to each property.
Every project is based on:
- Professional system design
- High-quality installation standards
- Trusted security product selection
- Clean integration between systems
- Long-term maintenance and support
We avoid unnecessary complexity and focus on solutions that are dependable, scalable, and easy to use.
Smart Home & Security Integration Experts
We specialise in integrating multiple systems into one platform, including:
- C-Bus lighting control systems
- Control4 smart home platforms
- Paradox alarm systems
- CCTV surveillance systems
- Gate and access control systems
- Networking and Wi-Fi infrastructure
This creates a unified system that is simple to control from one interface.
Residential and Commercial Solutions
We work with a wide range of clients, including:
- Luxury residential homes
- Security estates
- Corporate offices
- Retail stores
- Warehouses and industrial sites
- Hospitality and commercial buildings
Each system is tailored to the specific requirements of the property.
Why Choose Digital21?
Clients choose Digital21 because we combine technical expertise with practical experience in both installation and product supply.
What sets us apart:
- Specialist knowledge in smart home and security integration
- Professional installation and system design
- Supply of trusted security products
- Experience with C-Bus, Control4, and Paradox systems
- Reliable maintenance and support services
- Tailored solutions for homes and businesses
We deliver complete solutions — from supplying the equipment to full installation and support.
Areas We Service
We operate across:
- Johannesburg
- Sandton
- Bryanston
- Fourways
- Midrand
- Randburg
- Roodepoort
- Centurion
- Pretoria
- Greater Gauteng
Contact Digital21
Whether you need a smart home system, security installation, system upgrade, or professional security products, Digital21 provides complete solutions for residential and commercial clients across Gauteng.