Home Security System Cost Calculator

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Home Security System Cost Calculator

Estimate your total home security system cost including upfront equipment, installation, and ongoing monthly monitoring fees over your chosen contract period.

Home Size

Small (under 1,500 sq ft) Medium (1,500–3,000 sq ft) Large (3,000–5,000 sq ft) Extra Large (5,000+ sq ft)

System Type

Basic (1 camera, door/window sensors) Standard (2–4 cameras, motion sensors) Advanced (4–8 cameras, smart locks, glass break) Premium (8+ cameras, full smart home integration)

Additional Cameras

Additional Door/Window Sensors

Monitoring Plan

No Monitoring (self-monitored) Basic Monitoring ($15/mo) Standard Monitoring ($30/mo) Premium Monitoring ($50/mo)

Contract Length (months)

12 months 24 months 36 months 60 months

Professional Installation

Yes No (DIY)

Smart Home Integration (Z-Wave/Zigbee hub)

No Yes (+$150)

Cellular Backup & Battery Backup

No Yes (+$100)

Calculate Fill in the fields above and click Calculate.

function homCalc() { // --- Base equipment costs by system type --- var systemCosts = { basic: { equipment: 150, cameras: 1, sensors: 4 }, standard: { equipment: 350, cameras: 3, sensors: 8 }, advanced: { equipment: 700, cameras: 6, sensors: 14 }, premium: { equipment: 1200, cameras: 10, sensors: 20 } };

// --- Home size installation multiplier --- var sizeMultiplier = { small: 1.0, medium: 1.2, large: 1.5, xlarge: 1.8 };

// --- Monitoring monthly costs --- var monitoringCosts = { none: 0, basic: 15, standard: 30, premium: 50 };

// --- Gather inputs --- var homeSize = document.getElementById('hom-home-size').value; var systemType = document.getElementById('hom-system-type').value; var extraCameras = parseInt(document.getElementById('hom-extra-cameras').value) || 0; var extraSensors = parseInt(document.getElementById('hom-extra-sensors').value) || 0; var monitoring = document.getElementById('hom-monitoring').value; var contractMonths = parseInt(document.getElementById('hom-contract').value); var proInstall = document.getElementById('hom-professional-install').value; var smartHome = document.getElementById('hom-smart-home').value; var backupPower = document.getElementById('hom-backup-power').value;

// --- Validation --- if (extraCameras 20) { document.getElementById('hom-result').innerHTML = 'Additional cameras must be between 0 and 20.'; return; } if (extraSensors 50) { document.getElementById('hom-result').innerHTML = 'Additional sensors must be between 0 and 50.'; return; }

// --- Equipment cost --- // Base system equipment cost var baseEquipment = systemCosts[systemType].equipment;

// Extra cameras: $80 each (indoor) average var extraCameraCost = extraCameras * 80;

// Extra sensors: $20 each var extraSensorCost = extraSensors * 20;

// Smart home hub add-on var smartHomeCost = (smartHome === 'yes') ? 150 : 0;

// Cellular/battery backup add-on var backupCost = (backupPower === 'yes') ? 100 : 0;

// Total equipment cost var totalEquipment = baseEquipment + extraCameraCost + extraSensorCost + smartHomeCost + backupCost;

// --- Installation cost --- // Base installation labor: $200 flat + $50 per included camera + $10 per included sensor var includedCameras = systemCosts[systemType].cameras; var includedSensors = systemCosts[systemType].sensors; var totalCameras = includedCameras + extraCameras; var totalSensors = includedSensors + extraSensors;

var installationCost = 0; if (proInstall === 'yes') { // Base labor + per-device labor, scaled by home size var baseLabor = 200 + (totalCameras * 50) + (totalSensors * 10); installationCost = baseLabor * sizeMultiplier[homeSize]; }

// --- Upfront cost --- var upfrontCost = totalEquipment + installationCost;

// --- Monitoring cost over contract --- var monthlyMonitoring = monitoringCosts[monitoring]; var totalMonitoring = monthlyMonitoring * contractMonths;

// --- Total cost of ownership --- var totalCost = upfrontCost + totalMonitoring;

// --- Monthly equivalent --- var monthlyEquivalent = totalCost / contractMonths;

// --- Annual cost --- var annualCost = upfrontCost + (monthlyMonitoring * 12);

// --- Format currency --- function fmt(n) { return '$' + n.toFixed(2).replace(/\B(?=(\d{3})+(?!\d))/g, ','); }

// --- Build result HTML --- var html = '### Cost Estimate '; html += ''; html += 'Equipment Cost' + fmt(totalEquipment) + ''; html += 'Base System (' + systemType.charAt(0).toUpperCase() + systemType.slice(1) + ')' + fmt(baseEquipment) + ''; if (extraCameraCost > 0) html += 'Extra Cameras (' + extraCameras + ' × $80)' + fmt(extraCameraCost) + ''; if (extraSensorCost > 0) html += 'Extra Sensors (' + extraSensors + ' × $20)' + fmt(extraSensorCost) + ''; if (smartHomeCost > 0) html += 'Smart Home Hub' + fmt(smartHomeCost) + ''; if (backupCost > 0) html += 'Cellular/Battery Backup' + fmt(backupCost) + ''; html += 'Installation Cost' + fmt(installationCost) + ''; html += 'Total Upfront Cost' + fmt(upfrontCost) + ''; html += 'Monthly Monitoring' + fmt(monthlyMonitoring) + '/mo'; html += 'Total Monitoring (' + contractMonths + ' mo)' + fmt(totalMonitoring) + ''; html += 'Total Cost of Ownership' + fmt(totalCost) + ''; html += 'Monthly Equivalent' + fmt(monthlyEquivalent) + '/mo'; html += 'First-Year Total Cost' + fmt(annualCost) + ''; html += '';

html += 'System includes ' + totalCameras + ' camera(s) and ' + totalSensors + ' door/window sensor(s).

';

document.getElementById('hom-result').innerHTML = html; } homCalc();

#### Formula

Equipment Cost = Base System Cost + (Extra Cameras × $80) + (Extra Sensors × $20) + Smart Home Hub + Backup Power Installation Cost = (Base Labor $200 + Cameras × $50 + Sensors × $10) × Home Size Multiplier    Home Size Multipliers: Small = 1.0×, Medium = 1.2×, Large = 1.5×, Extra Large = 1.8× Upfront Cost = Equipment Cost + Installation Cost Total Monitoring Cost = Monthly Monitoring Fee × Contract Length (months) Total Cost of Ownership = Upfront Cost + Total Monitoring Cost Monthly Equivalent = Total Cost of Ownership ÷ Contract Length

#### Assumptions & References

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References

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