Alarm Systems &
Intrusion Detection
Advanced multi-zone alarm systems for Melbourne homes and businesses — smart app monitoring, backup power, and a 30-day workmanship guarantee.
Nexasec installs alarm systems from Bosch, Inner Range, Ajax, Hikvision AX Pro, Dahua, and Paradox for Melbourne homes and businesses across Victoria. Our licensed technicians design each system around your property — zone layout, sensor placement, and app monitoring configured before handover.
- Professional Advice
- Expert Installation
- Ongoing Support
What Alarm Systems Does Nexasec Recommend?
Most alarm companies install whatever is quickest. Nexasec specifies based on your site — from wireless-first Hikvision AX Pro and Ajax systems for rentals and retrofits, through to enterprise-grade Bosch and Inner Range Inception panels for commercial environments where reliability and integration matter most. We also install Paradox hybrid systems for clients who need flexible wired/wireless configurations.
Approved Alarm Brands We Install
Our Alarm System Solutions
Alarm Installation
Professional alarm installation for residential, commercial, and enterprise premises across Victoria — designed around your site, not a generic template.
Residential Alarms
Protect your home with multi-zone detection, smart app alerts, and backup power — fully installed and trained on the day.
Commercial Alarms
Multi-zone commercial systems with duress codes, staff protection, and integration into your access control and CCTV.
Enterprise Alarms
Large-scale intrusion detection across multi-site and high-security environments with central monitoring capability.
Bosch Alarm Systems
Nexasec recommends Bosch alarm systems for both residential and commercial premises based on their security, stability, and long-term reliability.
Hikvision AX Pro Wireless
Fully wireless alarm systems supporting up to 210 devices — fast installation, real-time app alerts via Hik-Connect, and video verification capability.
Dahua Wireless Alarms
Dahua wireless intrusion systems with smart detection, zone programming, and smartphone monitoring for homes and small commercial premises.
Paradox Alarm Systems
Paradox hybrid alarm panels offering flexible wired and wireless zone configurations — ideal for retrofits and multi-zone commercial installations.
Alarm Maintenance
Scheduled servicing, firmware updates, and priority repairs to keep your alarm running at peak performance.
Simple from
Start to Finish
We keep the process transparent and hassle-free. Here’s what to expect from your first call through to handover.
Free Consultation
Call or enquire online. We discuss your property, goals, and any questions — no pressure, no obligation.
Onsite Assessment
A licensed technician visits your property, walks through every entry point, and recommends the right solution.
Detailed Quote
A transparent written quote — fixed price, no hidden costs. You know exactly what you're getting before any work begins.
Professional Install
Our licensed team installs on time, keeps the site tidy, and fully tests everything before we leave.
Handover & Support
We walk you through your system and app. Ongoing support is available whenever you need it.
Why Choose Nexasec for Alarms?
Most alarm companies install what’s quickest. Nexasec designs each system around your property — camera angles and zone placements reviewed on-site, cable runs concealed, and detection sensitivity configured before we hand over the keys. You leave knowing exactly how your system works and what triggers it.
- Security integration specialists with expertise installing alarm systems across Victoria.
- Free on-site technical assessments and system consultations before any quote.
- Ongoing support post-installation — long-term client relationships, not just a sale.
- Technical consultancy on zone design, sensor placement, and network requirements.
- Maintenance and priority repairs for all alarm systems we install.
How Can We Help?
Frequently Asked Questions
A professionally installed residential alarm system in Melbourne typically costs between $900 and $1,200 for a standard home — including the panel, PIR detectors, door/window contacts, siren, and app configuration. Commercial systems with more zones start from around $1,800. Nexasec provides a written fixed-price quote after a free on-site assessment, so there are no surprises.
Nexasec installs Bosch, Inner Range Inception, Ajax, Hikvision AX Pro, Dahua, and Paradox alarm systems. The right panel depends on your site — wireless systems like Ajax and Hikvision AX Pro are ideal for retrofits and rentals; Bosch and Inner Range are preferred for commercial and enterprise environments requiring multi-zone reliability and integration with access control.
Professional monitoring is optional. Every system Nexasec installs includes self-monitoring via a smartphone app — you receive push notifications in real time when zones are triggered. For businesses or high-value residential properties, we can connect to a professional monitoring centre that dispatches a response on your behalf. We'll explain both options during your consultation.
Both are reliable when correctly specified. Wired systems are preferred for new builds and major renovations where cabling can be concealed in walls — they have no battery maintenance and are immune to RF interference. Wireless systems like Ajax and Hikvision AX Pro are better for rentals, heritage buildings, and retrofits where cabling is impractical. Nexasec recommends the right technology for your specific property.
Yes. All alarm panels Nexasec installs include an internal sealed lead-acid or lithium battery backup that keeps the system operational for 4 to 12 hours during a mains power failure. Wireless systems like Ajax use separate battery-powered detectors rated for several years of operation. The panel will notify you via the app if mains power is lost.
A typical 3–4 bedroom Melbourne home requires 4 to 8 zones — covering entry points, internal PIR movement, and a siren zone. Larger homes with sheds, garages, or multiple floors may need 10–16 zones. Commercial premises typically start at 8 zones and scale to 24 or more depending on floor plan and staff access areas. Nexasec maps zone requirements on-site before quoting.
What Our Clients Say
“Professional installation — the cameras are crystal clear and everything has worked flawlessly. Highly recommend Nexasec to any business owner.”
Tibin
JMJ Stores
“Very competitive pricing and a clean installation. Our store is now fully covered and we can monitor everything remotely. Great service.”
Saji
IGA Stratford
Ready to Speak With
Our Alarm Experts?
Free onsite assessment, written quote, no obligation. Our licensed team covers all of Victoria.