DIY or Locksmith? Smart Lock Installation Difficulty Explained

Smart locks are quickly becoming a popular home upgrade across Europe. With benefits like keyless access, remote control, and enhanced security, it's easy to see why. But one common question stops many homeowners and renters in their tracks:
“Should I install it myself or hire a locksmith?”

In this article, we’ll break down the installation difficulty of smart locks, compare DIY vs professional installation, and recommend the best tool-free smart locks perfect for beginners, especially for homes with standard Euro profile doors.

1. DIY vs. Locksmith: What's the Best Choice?

When to Choose DIY Installation

Pros:
Cost-saving (no professional fees)
Install anytime—no need to schedule an appointment
Great for tech-savvy homeowners or renters who like hands-on tasks

Ideal For:
Standard Euro profile cylinder doors (common across Europe)
Adjustable or retrofit smart locks
Users comfortable with basic measurements and installation videos

Considerations:
Measuring your door thickness and cylinder accurately
Checking the backset (distance from edge to cylinder center)
Some locks may still require minimal tools (e.g., screwdriver)

When to Call a Locksmith

Pros:
Professional precision and speed
Useful for complex doors or integrated systems
Peace of mind—especially for first-time users or rentals with strict rules

Ideal For:
Handles complex or non-standard door setups
Smart locks requiring drilling or electrical setup
Users who prefer a hands-off experience
Landlords managing multiple properties

Cost in Europe:
Prices vary by country, but expect €80–€150 for basic installation.

2. Key Factors That Affect Smart Lock Installation Difficulty

Door Compatibility
Most European homes use Euro profile cylinders, but it’s essential to check:
Door thickness (typically 38–100 mm)
Backset (distance from lock center to door edge)
Type of existing lock: Key-in-knob, mortise, or cylinder

Tools and Skills Required
Many smart locks only need a screwdriver, while others come with pre-assembled or adjustable parts that make DIY easier. Always review the product’s installation manual or video beforehand.

Connectivity Setup
For locks that connect to apps, Wi-Fi hubs, or smart home platforms (e.g., Alexa, Google Home), factor in extra time for digital setup—even if the physical installation is simple.

3. Best Tool-Free Smart Locks for Beginners in Europe

Looking for a lock you can install without calling anyone—or even opening a toolbox? 
These smart locks are beginner-friendly and designed for easy installation without professional help—no drilling, no wiring, and perfect for Euro profile doors:

WELOCK PCB41

Installation: No drilling, no wiring—just replace your existing cylinder
Door Compatibility: Fits 50–100 mm thick Euro profile doors
Unlock Methods: Passcode, RFID card, and smartphone app
Ideal For: Apartments, airbnb, homes, and short-term rentals

Tedee Go

Installation: Click-on design for Euro cylinders, no screws needed
Features: Bluetooth + optional Wi-Fi bridge
Smart Integration: Works with Apple HomeKit, Google Assistant, Alexa

Nuki Smart Lock 4.0

Installation: Mounts over existing thumb-turn lock (no drilling)
Ideal For: Renters or historic homes (preserves original lock)
Control options: App, Auto Unlock, optional keypad

4. Choose What Works for Your Home

If your door is compatible and you’re confident with simple installations, a DIY smart lock is an affordable and practical option.
But if you have a non-standard door or simply prefer a hands-off approach, a locksmith ensures a smooth setup.

Pro Tip: If you're leaning toward DIY, choose a lock specifically designed for European doors and tool-free installation.

Looking for an easy-to-install smart lock that fits your European door? Explore our top picks for tool-free smart locks that blend security, style, and simplicity.