About Us
Trusted Security and Automation Specialists — Serving Gauteng 24/7
We secure what matters—professionally, reliably, 24/7.
MainCon PSM (Property Security Management) delivers end-to-end perimeter security and automation across Gauteng. From gate & garage door motors to electric fencing, CCTV and alarm systems, we design, install and maintain solutions that last. Founded and led by Deon Nienaber, a hands-on installer with years of on-site experience, we are known for fast response, neat workmanship and no call-out fees—day or night.
Professional, Vetted Technicians
Every job is handled by experienced installers who follow strict safety and quality procedures.
Transparent, Honest Pricing
Clear quotes, the right advice and no surprises, ever!
Gauteng-Wide Coverage
Johannesburg, Pretoria, Centurion, Midrand, Sandton, Randburg, Roodepoort, Krugersdorp, East & West Rand.
24/7
Availability — emergency support
10+
Years of combined experience
1000+
Installations & repairs completed
0
Call-out fees, day or night
The Team
Meet the People Behind MainCon
Deon Nienaber
Founder & Lead Installer
Deon started MainCon PSM to deliver dependable, no-nonsense security installations backed by honest advice. He still leads on-site work, ensuring every motor, fence, camera and alarm is fitted correctly, tested thoroughly and finished neatly.
Coming Soon
Lead Technician – Gate Automation
Coming Soon
Coming Soon
Lead Technician – Gate Automation
Coming Soon
Coming Soon
Lead Technician – Gate Automation
Coming Soon
Sustainability
Committed to safe, compliant installations—every time.
We follow proven methods, use trusted brands and never cut corners. That’s how we keep homes, estates and businesses secure—long after the installer has left.
We Follow Best Practices
- Expert workmanship & neat finishes
- On-time, same-day response where possible
- Brand-approved products (Centurion, Nemtek, Hikvision, Paradox, IDS, UNV, Gemini)
- Tested, documented and explained before handover