Home Security: Complete Guide for Renters and Homeowners

The Reality of Residential Burglary

Germany sees approximately 60,000-80,000 residential burglaries per year. The peak months are October through February (less daylight, more evening absence). Most burglars are opportunistic: they look for easy entry, low risk, and assume the home is unoccupied.

The key insight: most burglars avoid homes that appear protected. Unlike Hollywood portrayals, most residential burglars are not skilled professionals who bypass security systems — they're opportunists who move on when they encounter resistance.

This means even basic deterrence measures are highly effective.

What Renters Can Do

Renters face the constraint of not being able to modify permanent structure without landlord permission. Here's what's possible without modification:

No-modification options

Window bars and pins: Insertable window security pins that prevent windows from opening when inserted. Removable, no installation required. ~€10-20 per window.

Door security bar: Wedge-type door bar placed under door handle prevents forced entry. Fully removable. ~€20-40.

Door alarm: Battery-powered contact alarms on doors and windows. Alert you to opening. No wiring required. ~€10-30 per unit.

Motion sensor lights: Plug-in versions work indoors; outdoor versions require outdoor outlet. ~€20-30.

Security camera (indoor/outdoor): Battery-powered WiFi cameras with no installation required. ~€40-100.

Lighting timers: Automatic light timers simulate occupancy during absence. ~€10-20.

With landlord permission (most landlords approve)

Deadbolt addition: Adding a second lock (Sicherheitsschloss) to the front door. Must be provided back at lease end. ~€100-300 installed.

Reinforced strike plate: Replacing the standard strike plate with a hardened version. ~€30-50 parts, minimal installation.

What Homeowners Can Do

Homeowners have the full range of options. Prioritize by impact per euro.

Tier 1: High impact, low cost (under €200)

Window pin locks: Every ground-floor and accessible upper-floor window should have one. ~€15/window.

Door lock upgrade: Upgrade from standard cylinder lock to certified security cylinder (EN 1303 Grade 5 or higher). ~€80-150 for professional installation.

Outdoor lighting: Motion-triggered lights on all entry points. ~€30-50 per light.

Visible deterrence: Security company sticker, visible camera (even dummy camera). Free to €30.

Tier 2: Meaningful upgrade (€200-1000)

Security alarm system: Basic PIR alarm with siren. Not professionally monitored but loud and noticeable. ~€200-500.

Reinforced entry door: Replace standard door with a certified security door (RC2 or RC3 standard). ~€500-2000 installed.

Window locks: Replace window espagnolette with locked versions. ~€50-200 per window professionally installed.

Tier 3: Comprehensive (€1000+)

Professionally monitored alarm system: Connected to monitoring center, police notification. ~€500-2000 installation + monthly fee.

CCTV system: Multi-camera system with recording. ~€500-2000.

Security glass on ground-floor windows: Laminated glass resists forced entry. ~€100-300 per window.

The Most Commonly Exploited Weaknesses

Based on police statistics:

Ground floor windows (hinged): Left unlocked or only tilted (gekippt). Simply close and lock all windows when absent and at night.
Balcony/terrace doors: Often seen as secondary entry but frequently exploited. Apply same lock discipline as front door.
Basement windows: Often forgotten, easily opened. Security pins or grilles.
Front door cylinder: Many German homes still have standard profile cylinders that can be picked in 30 seconds. Replace with certified Grade 5 cylinder.
Spare keys under mat/plant: Do not hide spare keys outdoors. Key safes (combination code, wall-mounted) are far more secure.

What Deters Burglars Most

From German police research on deterrence:

Signs of occupancy: Lights on, sounds, irregular schedules
Visible security: Alarm systems, cameras (even dummy), security stickers
Time required: Any entry that takes more than 3-5 minutes is usually abandoned
Alert neighbors: Neighborhood watch presence

A combination of lighting, basic lock quality, and visible deterrence stops the vast majority of opportunistic burglars.