
Buying a smart lock isn’t complicated, but there are a few key decisions that will determine whether your new lock fits perfectly or becomes a frustrating retrofit. This guide walks through the most important factors so you can shop with confidence.
Step 1: Know your door and existing hardware
Before anything else, measure your door. The two most important numbers are your backset (the distance from the edge of the door to the centre of the lock hole) and your lock type (deadbolt, mortise, handle set, etc.).
Most standard doors use a 60mm or 70mm backset, but older doors, European doors, and apartment doors often use a mortise lock setup that requires a specific type of smart lock. Buying the wrong type is the most common mistake—one simple check before you order saves you a return trip.
Step 2: Decide how you want to unlock
Smart locks offer a range of entry methods:
• PIN keypad – Simple, reliable, no phone required
• Fingerprint sensor – Fast, hands-free, ideal for daily use
• Smartphone app – Remote unlocking and access management from anywhere
• Key card or fob – Great for households where some members don’t carry smartphones
• Physical backup key – An important failsafe for power outages or dead batteries
The best choice depends on who uses your door every day. If you want a lock that covers most of these bases in one clean package, the Grisoll JUNO+ is a good reference point for what a well-rounded everyday lock looks like.
Step 3: Think about who needs access
A smart lock earns its value in how it handles your access list. Ask yourself:
• How many people regularly need to enter?
• Do you have guests, cleaners, or contractors who need temporary access?
• Do you need to manage access remotely, or is in-person setup enough?
If you want to grant and revoke access without being home, make sure the lock you choose supports app-based management and remote control.
Step 4: Check for practical durability
Your front door lock takes daily use in all weather conditions. Look for:
• A sturdy, well-built body — glass, steel, or reinforced materials
• Weather resistance if your door is exposed to rain or direct sun
• Battery life and low-battery alerts so you’re never caught off guard
• Firmware update support so your lock stays current over time
Step 5: Installation — DIY or professional?
Most quality smart locks are designed for straightforward DIY installation using only a screwdriver. Budget 30–60 minutes for a first-time install. If your door has unusual dimensions or a complex mortise setup, a brief consultation with a professional can save time and ensure everything fits correctly from day one.
Ready to find the right fit? Explore Grisoll’s smart lock lineup and find a model matched to your door type and lifestyle.