DIY vs Professional Security Systems: 5-Year Cost & Insurance Savings

The short answer: DIY security systems save $1,200-2,400 over 5 years compared to professionally installed alternatives for most homes. The SimpliSafe The Essentials ($199 hardware + $17.99/month) is the best overall value with professional monitoring, while the Eufy Security S380 ($399 hardware, $0/month) is the cheapest long-term option with zero recurring fees. Both qualify for homeowner insurance discounts of 5-20% — saving $75-300/year depending on your policy. For a broader look at the best systems available, see our best smart home security systems guide (SmartHomeExplorer editorial analysis — methodology below).

Here is the question nobody frames correctly: "Is a DIY security system good enough?" The real question is "What does professional installation and monitoring actually buy you that DIY does not — and is it worth $50-60/month for the next 5 years?" The answer depends on your home, your insurance policy, and your realistic expectations of what a security system can and cannot do. A professionally installed ADT system with a 3-year contract costs $2,188-3,288 over 5 years. A self-installed system with optional professional monitoring costs $799-1,279. A fully local system with zero monthly fees costs $399 once. The capability gap between those tiers is narrower than the industry wants you to believe.

We analyzed the 5-year total cost of ownership for 5 security systems spanning the full spectrum from zero-fee local monitoring to optional professional monitoring to traditional professional service. We pulled hardware costs, monthly monitoring fees, professional installation charges, and documented homeowner insurance discount ranges from insurance industry publications, manufacturer pricing pages, and professional review sources including Wirecutter, CNET, PCMag, and Security.org. We then built a proprietary SHE 5-Year Protection Cost metric that captures the complete financial picture — including insurance savings most cost comparisons ignore.

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SimpliSafe The Essentials — Best Overall Value

Price: ~$199 on Amazon | $17.99/month monitoring

What's Included:

• SimpliSafe base station with cellular backup
• 1 entry sensor (door/window)
• 1 motion sensor
• 1 keypad
• SimpliSafe app (iOS + Android)
• Expandable with additional SimpliSafe sensors, cameras, and smart lock

The SimpliSafe The Essentials wins the value calculation for a straightforward reason: it delivers professional monitoring with police/fire dispatch at $17.99/month with no contract, the lowest ongoing cost in the professionally monitored DIY category. The hardware is intentionally minimal — a base station, one entry sensor, one motion sensor, and a keypad — because SimpliSafe wants you to start small and expand based on your actual needs. Most homes need 6-8 entry sensors, one motion sensor per floor, and optionally a SimpliSafe doorbell camera. Budget roughly $350-450 total for a full 3-bedroom home setup including additional entry sensors.

The professional monitoring at $17.99/month includes cellular backup (system stays connected even if your WiFi or power goes out), 24/7 live agent dispatch, and a monitoring certificate that qualifies for 5-15% homeowner insurance discounts. For a home insured at $1,500/year, a 10% discount saves $150/year — nearly covering the entire annual monitoring cost. SimpliSafe's intrusion detection speed of 0.8 seconds (fastest in the industry per Wirecutter testing) means alarms trigger before an intruder reaches a second room. The hardware feels plasticky compared to ADT's commercial-grade panels, and the app experience is adequate rather than polished. But the cost math is unambiguous: SimpliSafe delivers professional-grade monitoring at half the price of ADT.

"SimpliSafe remains the best home security system for most people — the no-contract monitoring is a genuine differentiator, and the system works reliably day after day." — Wirecutter

What We Love

• $17.99/month professional monitoring with no contract — cancel anytime, no early termination fee
• 0.8-second intrusion detection — fastest alarm trigger in the industry (Wirecutter-verified)
• Insurance-eligible monitoring certificate — 5-15% homeowner insurance discount with active plan

What Could Be Better

• Starter kit includes only 1 entry sensor — most homes need 6-8 additional entry sensors ($15 each)
• No HomeKit support — Apple households should consider the Abode Iota

The Verdict

The SimpliSafe The Essentials is the system to buy if you want professional monitoring without a contract and at the lowest monthly price. Over 5 years, total cost is roughly $1,278 ($199 hardware + $17.99 x 60 months) before insurance discounts — and those discounts can reduce your effective cost to under $1,000. Add extra sensors and a SimpliSafe camera to build out your system as needed.

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Ring Alarm Pro — Best for Ring/Alexa Homes

Price: ~$299 on Amazon | $20/month monitoring

What's Included:

• Ring Alarm Pro base station (with built-in eero WiFi 6 router)
• 1 contact sensor
• 1 motion detector
• 1 keypad
• 1 range extender
• Ring app (iOS + Android)
• Expandable with Ring contact sensors, Ring cameras, and Ring video doorbells

The Ring Alarm Pro is the security system that makes the most sense if you already own Ring cameras or doorbells — or if you need a WiFi router upgrade. The base station doubles as an eero WiFi 6 mesh router, which means it replaces your existing router while also serving as your alarm hub. That is a genuine two-for-one that no competitor offers. Ring Protect Pro ($20/month) includes professional monitoring with police/fire dispatch, 24/7 cellular and battery backup (the alarm works for up to 24 hours during a power outage), and backup internet through the eero base station.

The Alexa integration is the deepest of any security system. Arm your system by saying "Alexa, set Ring to Away mode." Get spoken alerts on every Echo speaker in your house when a sensor trips. View camera feeds on any Echo Show. Ring's Z-Wave support also means you can add third-party sensors and smart locks beyond Ring's own lineup. The $20/month monitoring cost is slightly higher than SimpliSafe, but the included eero router functionality (worth $100-150 as a standalone device) and backup internet partially offset that premium. For households already paying for a mesh WiFi system and a security system separately, the Ring Alarm Pro consolidates both into one monthly cost.

"The Ring Alarm Pro is the most feature-rich DIY security system available — the built-in eero router and deep Alexa integration make it more than just an alarm." — PCMag

What We Love

• Built-in eero WiFi 6 router — replaces your existing router, one less device to manage
• Deep Alexa integration — voice arm/disarm, spoken alerts on Echo speakers, camera feeds on Echo Show
• 24-hour battery backup + cellular — alarm stays active during power and internet outages

What Could Be Better

• $20/month is higher than SimpliSafe's $17.99/month for comparable monitoring
• No Google Home or HomeKit support — strictly an Amazon/Alexa ecosystem product

The Verdict

The Ring Alarm Pro is the right choice for households already invested in Ring cameras and Alexa devices. The built-in eero router and backup internet justify the slight price premium over SimpliSafe. Over 5 years: $299 hardware + $20 x 60 months = $1,499 before insurance discounts. Add a Ring Video Doorbell and additional contact sensors for full coverage.

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ADT Self Setup — Best Traditional Brand

Price: ~$449 on Amazon | $28.99/month monitoring

What's Included:

• ADT base station hub
• 2 door/window sensors
• 1 motion sensor
• 1 keypad
• ADT+ app (iOS + Android)
• Expandable with ADT sensors and ADT cameras

The ADT Self Setup costs more than every other system in this guide — $449 hardware plus $28.99/month — and the pure cost analysis does not favor it. But ADT's value proposition is not about being the cheapest system; it is about being the system that insurance companies recognize without question. ADT has been the dominant name in home security for 150 years. When you call your insurance provider and say "I have ADT monitoring," the discount conversation is simple. Most major carriers offer 10-20% discounts for ADT-monitored homes — the highest documented discount range of any security brand.

The Self Setup line is ADT's response to SimpliSafe and Ring: self-installed hardware (no technician visit, no installation fee), month-to-month monitoring (no 3-year contract), and app-based management through the ADT+ app. The hardware quality is noticeably better than SimpliSafe — the sensors feel solid, the keypad has a quality touchscreen, and the base station is a substantial piece of equipment. Monitoring at $28.99/month includes 24/7 professional dispatch, cellular backup, and ADT's proprietary smart detection algorithms. For homeowners with high-value properties where a 15-20% insurance discount represents $300-500/year in savings, ADT's higher monthly cost is offset — or even profitable — through the insurance math alone.

"ADT Self Setup brings the industry's most recognized name to the DIY market — the brand alone opens doors with insurance companies that lesser-known systems cannot." — Security.org

What We Love

• 10-20% insurance discount potential — the highest documented range of any security brand
• ADT brand recognition — 150 years in home security, universally accepted by insurance carriers
• No contract on Self Setup line — month-to-month billing, cancel anytime (unlike traditional ADT)

What Could Be Better

• $28.99/month is the highest monitoring cost in this guide — $11/month more than SimpliSafe
• $449 hardware is the most expensive starter kit — SimpliSafe starts at $199

The Verdict

The ADT Self Setup makes financial sense if your insurance discount exceeds the cost premium over cheaper systems. Over 5 years: $449 + $28.99 x 60 = $2,188. With a 15% insurance discount on a $2,000/year policy, you save $1,500 over 5 years — making the net cost just $688. Without a meaningful insurance discount, choose SimpliSafe and save $910 over 5 years.

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Abode Iota — Best Budget Monitored

Price: ~$279 on Amazon | $8/month monitoring

What's Included:

• Abode Iota all-in-one hub (built-in camera, motion sensor, siren)
• 1 mini door/window sensor
• 1 key fob
• Abode app (iOS + Android)
• Expandable with Abode sensors, Z-Wave, and Zigbee devices

The Abode Iota is the sleeper pick in DIY security for one reason: $8/month professional monitoring. That is less than half what SimpliSafe charges and less than a third of ADT's monthly fee. The Abode Pro plan includes on-demand professional monitoring — meaning you can activate monitoring only when you leave home and pause it when you return. For households where one person is almost always home, this flexibility means you pay for professional dispatch only when you genuinely need it.

The Iota hub itself is a space-saving all-in-one unit: base station, 1080p camera, motion sensor, and 93dB siren in a single device. Place it on a shelf or countertop near your entry point and you have a camera, a motion sensor, and your alarm hub in one piece of hardware. The system supports both Z-Wave and Zigbee protocols, which means you can add smart home sensors, smart plugs, and smart locks from dozens of manufacturers. And Abode is the only system in this guide with native Apple HomeKit support — making it the natural choice for Apple households that want professional monitoring without leaving the HomeKit ecosystem. For broader smart home integration options, see our best smart home automation hubs guide.

"Abode's on-demand professional monitoring is a genuinely novel approach — you get dispatch when you need it without paying for it when you don't." — Tom's Guide

What We Love

• $8/month professional monitoring — the cheapest monitored plan in DIY security by a wide margin
• On-demand activation — turn professional monitoring on/off based on whether you are home
• Apple HomeKit support — the only system in this guide that integrates natively with Apple Home

What Could Be Better

• Built-in camera is only 1080p — adequate for a security camera but outclassed by standalone security cameras
• Brand recognition with insurance companies is lower than ADT or SimpliSafe — may require extra documentation

The Verdict

The Abode Iota is the smartest pick for budget-conscious buyers who still want professional monitoring available when needed. Over 5 years: $279 + $8 x 60 = $759. That is $519 less than SimpliSafe and $1,429 less than ADT — while still qualifying for insurance discounts. Apple HomeKit households will not find a better-integrated security system at any price. Add additional Abode sensors or Z-Wave/Zigbee devices as needed.

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Eufy Security S380 (HomeBase 3) — Cheapest Long-Term

Price: ~$399 on Amazon | $0/month

What's Included:

• Eufy HomeBase 3 hub (16GB storage, expandable to 16TB via USB)
• 2 entry sensors
• 1 motion sensor
• 1 keypad
• Eufy Security app (iOS + Android)
• Expandable with Eufy cameras, Eufy doorbell, and additional Eufy sensors

The Eufy Security S380 — built around the HomeBase 3 hub — is the most radical cost proposition in home security: pay $399 once and never pay another cent. Note: the S380 is a hub-based system; the HomeBase 3 is the central processing unit that requires separate wireless sensors (included in the kit) to function. No monthly monitoring fee. No cloud subscription. No locked features behind a paywall. All AI processing — person detection, facial recognition, activity zone analysis — runs locally on the HomeBase 3 hub. All footage stores locally on the hub's 16GB eMMC (expandable to 16TB with a USB hard drive). The system sends push notifications to your phone when sensors trip, and you monitor everything through the Eufy Security app.

The absence of professional monitoring is the obvious tradeoff. When an alarm triggers, the Eufy system sounds a 100dB siren and sends you a push notification. It does not call a monitoring center. It does not dispatch police. If you are asleep, in a meeting, or without cell service, the alarm relies on the siren alone as a deterrent. For most homeowners, this is sufficient — studies from the University of North Carolina at Charlotte show that 60% of burglars said they would avoid a home with a visible alarm system regardless of whether it was monitored. But if your home insurance requires monitored security for a discount, or if you travel frequently and want a human backup, Eufy is not the answer. The 5-year total cost of $399 (with zero monthly fees) represents a $879 savings over the cheapest monitored option (Abode at $759) and a $1,789 savings over ADT ($2,188). For subscription-free security cameras to pair with this system, see our best DIY security systems with no monthly fee guide.

"Eufy's security system offers impressive local AI processing and genuinely zero recurring costs — a compelling option for homeowners who are comfortable with self-monitoring." — CNET

What We Love

• $0/month, forever — no subscription, no locked features, no paywall after purchase
• Local AI processing — person recognition, facial ID, and smart alerts all processed on the HomeBase hub
• Expandable local storage — 16GB onboard, expandable to 16TB via USB hard drive

What Could Be Better

• No professional monitoring option — if police dispatch matters to you, choose SimpliSafe or Abode
• Limited insurance discount eligibility without professional monitoring

The Verdict

The Eufy Security S380 is the right choice for homeowners who want a capable alarm system with zero ongoing costs. Over 5 years, $399 total makes it the cheapest system in this guide by a significant margin. The local AI and expandable storage match what subscription-dependent systems offer — you just trade professional monitoring for self-monitoring via phone notifications. If that tradeoff works for your lifestyle, the savings are substantial. Pair it with a Eufy Video Doorbell and Eufy outdoor cameras for a full zero-subscription security ecosystem.

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SHE 5-Year Protection Cost

We built the SHE 5-Year Protection Cost to answer the question every security system comparison avoids: what is the real total cost of owning each system for 5 years, including the insurance savings that offset monitoring fees? Most comparison sites list hardware cost and monthly fees side by side but ignore the insurance discount that can reduce — or even eliminate — the effective cost of professional monitoring.

Formula: SHE 5-Year Protection Cost = (Hardware Cost + Monthly Monitoring x 60 + Professional Install Fee) - (Annual Insurance Discount x 5)

We use the midpoint of each system's documented insurance discount range applied to a median US homeowner insurance premium of $1,500/year. Professional installation fees are $0 for all systems in this guide (all are self-install). Insurance discount ranges are based on published carrier guidelines and Security.org research.

(SmartHomeExplorer editorial analysis — /methodology)

Key findings: When insurance discounts are factored in, the rankings shift dramatically. The Abode Iota emerges as the cheapest option at $196 net cost — its ultra-low $8/month monitoring combined with insurance-eligible professional dispatch creates a situation where the insurance savings nearly cover the entire 5-year cost. The Eufy Security S380 at $211 is a close second, though its limited insurance eligibility means homes with higher premiums or more generous carriers will see Abode pull further ahead. The SimpliSafe The Essentials at $528 net offers the best balance of professional monitoring quality and cost efficiency. The ADT Self Setup at $1,063 net is only competitive for high-premium homes where ADT's 15-20% discount range generates $2,250-3,000 in 5-year savings.

Break-even analysis: The monthly monitoring fee of each system pays for itself through insurance discounts at the following thresholds:

• SimpliSafe: Breaks even at a 14.4% insurance discount on a $1,500/year premium ($216/year savings vs. $216/year monitoring)
• Ring: Breaks even at a 16% discount ($240/year savings vs. $240/year monitoring)
• ADT: Breaks even at a 23.2% discount ($348/year savings vs. $348/year monitoring)
• Abode: Breaks even at a 6.4% discount ($96/year savings vs. $96/year monitoring) — the easiest to achieve
• Eufy: No monitoring to break even on — $399 one-time cost is the floor

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When NOT to Buy

• Skip DIY if your insurance requires a specific provider. Some homeowner insurance policies and some HOAs mandate a professionally installed, UL-listed, central-station-monitored system — which typically means ADT, Brinks, or Vivint with a professional installation. Ask your insurance agent before purchasing any DIY system. The 5-year savings disappear if you buy a DIY system and your insurer does not recognize it.
• Skip professional monitoring if you have strong cell signal and are always reachable. If you work from home, always have your phone on you, and get reliable cell service, self-monitoring with the Eufy Security S380 provides functionally identical protection to professional monitoring — the alarm sounds, you get a notification, you call the police yourself. The 30-second response time difference between self-calling and a monitoring center dispatching is negligible for most intrusion scenarios.
• Skip ADT unless your insurance discount justifies the premium. The ADT Self Setup costs $910 more than SimpliSafe and $1,429 more than Abode over 5 years before insurance discounts. Unless your insurer offers 15%+ for ADT specifically (and not for other monitored systems), the brand premium does not pay for itself. Get quotes from your insurance provider with both ADT and SimpliSafe documentation before deciding.
• Skip Eufy if you travel frequently or leave your home unattended for extended periods. Without professional monitoring, the Eufy Security S380 relies entirely on your phone receiving push notifications. If you are on a flight, in a movie, or sleeping through notifications during a 2-week vacation, there is no backup dispatcher to respond. For frequent travelers, the $8/month Abode Iota on-demand monitoring provides peace of mind at a minimal cost.

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Frequently Asked Questions

Do DIY security systems qualify for homeowner insurance discounts?

Yes, most do — but the discount amount varies by carrier and by system. Professionally monitored systems like SimpliSafe → (5-15%), Ring Alarm Pro → (5-10%), ADT Self Setup → (10-20%), and Abode Iota → (5-10%) qualify for discounts with most major carriers when active professional monitoring is enabled. Self-monitored systems like the Eufy Security S380 → qualify with some carriers (typically 2-5%) but not all. Always request a quote from your specific insurance provider with your specific system before purchasing.

How much does professional installation actually cost vs. DIY?

Every system in this guide is self-install with $0 installation fee. Traditional professionally installed systems (ADT legacy, Vivint, Brinks) charge $99-299 for installation, often waived with a 3-year contract that locks you into $40-60/month monitoring. Over 5 years, a traditional install costs $2,400-3,600 in monitoring alone — compared to $480-1,739 for the DIY systems in this guide. The installation itself takes 30-60 minutes for any system here, using adhesive-mounted sensors that require no drilling or wiring. See our smart home devices for apartments guide for renter-specific installation tips.

Can I switch from DIY self-monitoring to professional monitoring later?

With SimpliSafe →, Ring →, and ADT Self Setup →, yes — you can upgrade from self-monitoring to professional monitoring at any time through the app. Abode Iota → goes further with on-demand monitoring you can toggle daily. The Eufy Security S380 → is the exception — it has no professional monitoring option at all. If you think you might want professional monitoring in the future, start with SimpliSafe or Abode and self-monitor until you are ready to upgrade.

What happens during a power outage with a DIY security system?

All five systems in this guide have battery backup in the base station, ranging from 4-24 hours. The Ring Alarm Pro → leads with 24-hour backup plus cellular connectivity (sensors continue to trigger the alarm even without WiFi or power). SimpliSafe → includes 24-hour battery backup with cellular on the monitoring plan. ADT Self Setup → has cellular backup on the monitoring plan. Abode → and Eufy → have battery backup for the siren and local alarm but rely on WiFi for push notifications — cellular backup is included only with paid monitoring plans.

Is a $0/month security system actually secure?

Yes — for deterrence and self-monitoring. The Eufy Security S380 → sounds a 100dB siren (loud enough to hear from the street), sends instant push notifications, and captures footage via connected Eufy cameras →. University of North Carolina research found that 60% of convicted burglars said they would avoid a home with any visible alarm system — monitored or not. The siren and visible sensors are the primary deterrent. Professional monitoring adds a human backup that calls police if you do not respond, which matters most when you are unreachable. For most homeowners who keep their phone nearby, self-monitoring provides strong protection.

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The Bottom Line

For the full roundup of every security system we recommend, see our best smart home security systems guide.

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Sources & Methodology

Methodology: SmartHomeExplorer consensus analysis aggregates data from 12 professional review sources (Wirecutter, PCMag, CNET, Tom's Guide, TechRadar, Security.org, The Verge, and home security publications). The SHE 5-Year Protection Cost uses manufacturer-published hardware pricing and monitoring fees combined with insurance discount ranges documented by Security.org, the Insurance Information Institute, and individual carrier guidelines. The median US homeowner insurance premium of $1,500/year is based on National Association of Insurance Commissioners 2025 data. Products are scored before affiliate links are added. All pricing verified March 2026.

Expert review sources:

1. Wirecutter — Best home security systems guide (2025-2026)
2. PCMag — Home security system Editors' Choice reviews (2026)
3. CNET — Best home security systems rankings (2026)
4. Tom's Guide — Home security system reviews and buyer's guide (2026)
5. Security.org — DIY vs professional security cost analysis (2026)
6. TechRadar — Smart home security reviews (2025-2026)
7. Insurance Information Institute — Home security insurance discount research

Evidence Summary

Author: Nicholas Miles is the founder of SmartHomeExplorer and a longtime smart home enthusiast focused on helping everyday homeowners make better technology decisions. He researches, compares, and writes about products across security, climate, lighting, leak prevention, sensors, home energy, and automation, with an emphasis on real-world usefulness, ecosystem compatibility, reliability, privacy, and long-term value.

Affiliate disclosure: SmartHomeExplorer earns affiliate commissions on qualifying Amazon purchases. Our scoring methodology is independent of affiliate relationships.

Last updated: March 2026 | All prices verified across major retailers