Introduction
One of the most common questions we hear at Garrison Alarms is: “Should I install CCTV cameras or an alarm system?”
The honest answer might surprise you: it’s not either/or—it’s both. But we understand the question reflects a real budget constraint. So let’s break down what each system does, their strengths and limitations, and which combination makes sense for your Auckland home.
What Each System Does
Alarm Systems: Prevention and Response
An alarm system’s primary job is deterrence and rapid response.
How it works:
- Sensors detect entry (door/window sensors, motion detectors)Sensors detect entry (door/window sensors, motion detectors)
- System triggers audible alarm (siren, bells)
- Signal sent to 24/7 monitoring centre Monitoring centre
- Monitoring centre contacts you and emergency services if necessary
- Police or security respond
Key benefit: Active prevention—the alarm stops break-ins before they happen by making noise and alerting authorities.
CCTV Systems: Recording and Evidence
CCTV’s primary job is documentation and identification.
How it works:
- Cameras record continuously or on motion trigger
- Footage stored locally (NVR/DVR) or in the cloud
- If incident occurs, you have video evidence
- Used for police investigation and insurance claims
Key benefit: Passive documentation—you know what happened, when, and by whom.
Head-to-Head Comparison
Factor | Alarm System | CCTV System |
|---|---|---|
Prevents break-ins? | Yes (audible alarm deters) | Partially (visible camera deters) |
Stops burglary in progress? | Often (police response) | No (only records) |
Identifies intruders? | No | Yes (if footage captured) |
Evidence for insurance? | No | Yes |
Evidence for police? | No | Yes |
Monitor remotely? | Yes (via app) | Yes (via app) |
Monthly cost? | $20–$50 (monitoring) | $0–$100 (optional cloud) |
Initial cost? | $1,500–$3,500 | $2,500–$5,500 |
Effective 24/7? | Yes | Yes |
Works if you’re home? | Depends on armed status | Always records |
The Case for Alarm Systems
Alarm Advantages
1. Active Deterrence
Most burglars skip homes with alarm system signs. Studies show homes with visible alarm stickers/boxes experience 60–70% fewer break-in attempts.
Why it matters: Burglars want easy targets. An alarm makes your home harder than the one down the street.
2. Rapid Police Response
Connected monitoring means police are contacted within seconds of alarm trigger, not after you discover a break-in.
Response time: 5–15 minutes typical in Auckland; much faster than calling police yourself if you discover a break-in.
3. 24/7 Monitoring and Response
Even if you’re away or asleep, professional monitoring centre is watching:
- Detects unauthorized entry attempts
- Contacts you immediately
- Dispatches police without requiring your input
- Provides evidence of attempted break-in timing
4. Integration with Other Systems
Modern alarm panels integrate with:
- Automatic door locking
- Lighting control
- Smart home systems
- CCTV systems
- Access control
5. Insurance Discounts
Many NZ insurers offer 5–15% discounts for monitored alarm systems—often $300–$600 annually.
The math: Monitoring costs $20–$50/month ($240–$600/year), but insurance savings offset this or exceed it.
Alarm Limitations
- No identification: Alarm tells you someone entered; doesn't tell you who
- False alarms: Accidental triggers cost money ($50–$200 per false alarm in some areas)
- No video evidence: Police response alone doesn't capture the break-in on film
- After-the-fact: By the time alarm triggers, intruder is already inside
- No insurance benefit without video: Most insurers want video evidence to approve claims
The Case for CCTV Systems
CCTV Advantages
1. Visual Identification
This is CCTV’s superpower. A 4K camera from 3 metres can clearly identify a person’s face, unique features, tattoos, clothing.
Investigation value: Police can use footage to identify suspects, track their escape route, and corroborate witness statements.
2. Insurance Claim Support
Insurers love video evidence. It transforms a vague claim (“Someone stole my bike from the garage”) into documented proof.
Claim acceptance: Video evidence increases claim approval rate from ~70% (no evidence) to 95%+ (clear video).
3. Visible Deterrence
Seeing cameras often makes thieves move on to easier targets.
Effectiveness: Visible cameras deter 40–50% of casual thieves; professional burglars are less intimidated.
4. Ongoing Documentation
CCTV continuously records whether you’re home, away, sleeping, or on holiday:
- Package thefts captured
- Mail tampering documented
- Vandalism recorded
- Rental property misuse captured
- Employee or contractor misconduct documented
5. Multi-Purpose Use
Beyond security, CCTV provides:
- Monitoring children playing outside
- Checking who's at the door (doorbell cameras)
- Monitoring workers/tradies at your property
- Viewing driveway activity
6. Scalability
Start with 1–2 cameras and expand as needed. Adding cameras costs $500–$1,200 per camera (cheaper than initial installation).
CCTV Limitations
- Doesn't prevent break-ins: Cameras record events; they don't stop them
- Requires good light: Night vision helps, but very dark conditions still challenging
- No active response: Police must be contacted separately; CCTV doesn't trigger automatic response
- Storage concerns: Continuous 4K recording consumes significant storage (1TB = ~7 days for 4 cameras)
- Privacy compliance: Must comply with NZ Privacy Act; can't record audio in many situations
- No deterrent to determined burglars: Professional thieves aren't deterred by visible cameras
The Real Security Picture: Why You Need Both
Here’s the critical insight: alarm systems and CCTV do different jobs.
Scenario 1: Break-in Occurs
Without Alarm
- Burglar enters through door/window
- Breaks in, steals items
- You return home or wake up to discover theft
- Police respond to your call (30 minutes later)
- You have no evidence
Result: Items gone, police have no leads, insurance unlikely to pay full claim
With alarm alone:
- Burglar enters; door sensor triggers alarm
- Loud siren goes off; burglar panics and leaves (or continues stealing)
- Monitoring centre contacts you and police
- Police respond (5–15 minutes)
- No video evidence of who did it or what was taken
Result: Burglary interrupted but no identification; police have limited leads; insurance may not cover all losses without evidence
With CCTV alone:
- Burglar enters and steals items
- CCTV records everything in crystal clear 4K
- You discover theft and report to police (next day or later)
- Police have excellent video evidence; can identify burglar
- Insurance has video proof of what was stolen
Result: Burglar might be identified and prosecuted; insurance claim likely approved; items possibly recovered
With both alarm + CCTV:
- Burglar enters; door sensor triggers alarm
- Alarm siren goes off; burglar panics and flees
- CCTV captured the intruder's entire entry, movement, and escape
- Monitoring centre has already contacted police
- Police respond quickly with clear video evidence
- Burglar is identified from CCTV footage
- Insurance claim fully supported by video evidence
Result: Break-in prevented or interrupted; perpetrator identified; evidence preserved; claim approved; possible prosecution and recovery
Which Should You Prioritize if You Must Choose?
If budget constraints force a choice, here’s our honest ranking:
Priority 1: Alarm System (if only one option)
Reason: An alarm provides active prevention—it stops break-ins before they happen. A siren and police response are more valuable than recording after the fact.
Cost: $1,500–$3,500 installed + $20–$50/month monitoring
Best for: Primary deterrence; can add CCTV later
Priority 2: CCTV System (if alarm not feasible)
Reason: CCTV provides evidence and identification—invaluable for insurance and police investigation. Better than nothing.
Cost: $2,500–$5,500 installed + $0/month (local storage) to $50/month (cloud)
Best for: Documentation priority; can add alarm later
Priority 3: Combined System (best security)
Reason: Covers prevention, response, and evidence. Maximum protection and insurance discount benefit.
Cost: $5,000–$9,000 installed; $20–$100/month monitoring + optional cloud
Best for: Most homeowners; investment properties; valuable homes
Auckland-Specific Considerations
Crime Statistics
- North Shore areas see moderate burglary rates (varies by suburb)
- Summer sees increased break-in activity (higher holiday burglarism)
- Opportunistic theft (tools, bikes, outdoor equipment) is very common
- Home invasion follow-on theft is rising (alarm + CCTV combination most effective)
Implication: Both systems provide valuable deterrence and evidence in Auckland’s specific crime environment.
Weather Impact
- Alarm systems: Not weather-dependent; perform consistently year-round
- CCTV systems: Weather affects night vision; humidity can cause condensation
Implication: Alarm systems are more reliable in all conditions; CCTV requires professional installation and maintenance in Auckland’s maritime climate.
Insurance Implications
- Most major insurers offer alarm discounts: 5–10%
- CCTV + alarm combination may unlock additional discounts: 5–15% total
- Monitored systems qualify for better discounts than unmonitored
- Premium Auckland properties may require both systems for acceptable coverage
FAQ: Alarm vs CCTV
Can I get the same effect with just a CCTV doorbell camera?
Doorbell cameras are excellent for entry documentation but don’t provide the overall deterrence and police response of a full system. They’re a good start but shouldn’t replace a full security approach.
Will an alarm system prevent all break-ins?
No. Alarm systems deter most opportunistic burglars (60–70% fewer attempts), but determined criminals may proceed anyway. This is why CCTV evidence is important—for the break-ins that do occur despite the alarm.
Do I need 24/7 professional monitoring if I have CCTV?
Not technically required, but it’s valuable. Without monitoring, you rely on mobile alerts, which may not trigger immediately. Professional monitoring ensures rapid police dispatch if alarm triggers.
What if I have CCTV but no alarm—will police respond faster if I call them?
Not necessarily. Police response prioritizes emergency calls equally. Having an alarm with professional monitoring usually triggers faster response than a homeowner calling about a break-in already in progress.
Can I expand an alarm system or CCTV system later?
Yes to CCTV expansion (cameras, mostly simple). Alarm system expansion is easier than you’d think—usually requires professional technician visit ($200–$400) to add sensors. Plan for future expansion during initial installation (costs minimal extra).
Which system helps insurance claims more?
CCTV provides evidence (essential for claim approval). Alarm system provides documentation of when break-in occurred. Together, they maximize claim success rate. CCTV alone is more valuable than alarm alone for claims.
Should renters install these systems?
Renters should prioritize portable options:
- Alarm: Wireless systems available; discuss with landlord
- CCTV: Portable battery-powered cameras exist but aren't ideal
- Best approach: Talk to landlord about installing professional systems—both systems increase property value and insurance discount
Garrett Alarms' Recommended Approach for Auckland Homes
Auckland-Specific Considerations
For Most Homes (Best Value)
Install: Alarm system + basic 3–4 camera CCTV
Why: Alarm provides active deterrence + police response; CCTV provides evidence. Most cost-effective security combination.
Cost: $5,000–$7,500 installed; $30–$60/month monitoring
Annual cost including insurance savings: Often breaks even or saves money through insurance discounts
For High-Value Homes
Install: Professional alarm + 6–8 camera professional CCTV + 24/7 monitoring
Why: Premium protection warrants premium solution. Full perimeter coverage ensures nothing is missed.
Cost: $8,000–$12,000+ installed; $60–$100/month monitoring
Benefit: Likely qualifies for maximum insurance discount (10–15%), often paying for system within 3–4 years
For Investment/Rental Properties
Install: Alarm + CCTV + cloud backup + professional monitoring
Why: Protects against tenant damage claims, unauthorized access, theft. Evidence preservation is critical.
Cost: $6,000–$9,000 installed; $50–$80/month monitoring + cloud
Tenant disclosure: Must inform tenants of monitoring; certain areas (bedrooms, bathrooms) off-limits
Getting a Complete Security Assessment
Rather than choosing between alarm and CCTV, let Garrison Alarms assess your property and recommend a complete solution:
- Site assessment – Identify vulnerabilities
- Threat analysis – What risks affect your home specifically
- Recommendation – Prioritized system combining alarm + CCTV
- Itemized quote – Clear breakdown with no surprises
- Flexible options – Phase installation if needed
Internal Linking Notes
Link to these related Garrison Alarms resources:
- "CCTV Installation Cost Auckland: Complete 2026 Pricing Guide" (CCTV cost details)
- "How Many CCTV Cameras Do I Need?" (CCTV system sizing)
- "Best CCTV Cameras for Homes in New Zealand 2026" (camera selection)
- "Alarm Monitoring Cost in NZ: Is 24/7 Monitoring Worth It?" (monitoring details)
- "Home Security Checklist NZ: 25 Ways to Protect Your Auckland Home" (comprehensive security)
- "Do Security Cameras Deter Burglars?" (CCTV deterrence data)
- "Auckland Burglary Statistics 2025-2026: Which Suburbs Are Most at Risk?" (local crime context)
Summary
CCTV and alarm systems serve different purposes:
- Alarms provide active prevention through deterrence and rapid response
- CCTV provides passive documentation through recording and identification
- Monitored systems qualify for better discounts than unmonitored
- Premium Auckland properties may require both systems for acceptable coverage
The best home security combines both. An alarm stops most break-ins before they happen; CCTV captures evidence if a break-in occurs despite the alarm.
For most Auckland homes, a combined system with professional monitoring offers the best security, deterrence, and insurance value. If budget constraints require choosing one, alarm systems provide greater active prevention—but add CCTV when budget allows.
Contact Garrison Alarms for a free security assessment recommending the perfect alarm + CCTV combination for your home—0800-427747.
About Garrison Alarms
Since 1989, Garrison Alarms has provided complete security solutions combining alarm systems and CCTV for Auckland homes and businesses. We install Paradox, Bosch, DSC, Micron, Hikvision, Risco, and Panasonic systems—designed to work together for maximum protection. Our COC-certified installers provide expert guidance, professional installation, and 24/7 support.
Last updated: February 2026