Smart door locks are one of the best upgrades you can make to your home. No more fumbling for keys, no more worrying whether you locked the door — just seamless, secure access from your phone. But with so many options on the market, how do you choose the right one?
What to Look for in a Smart Door Lock
Before buying, consider these key factors:
- Connectivity: Most smart locks use Wi-Fi, Z-Wave, Zigbee, or Bluetooth. Wi-Fi locks work without a hub; Z-Wave and Zigbee require one but are more reliable.
- Compatibility: Check if it works with your existing deadbolt and door thickness.
- Power source: Most run on AA batteries. Look for low-battery alerts.
- Access methods: Keypad, fingerprint, app, or voice (Alexa/Google Home).
- Auto-lock: Essential feature — locks automatically after a set time.
Top 3 Smart Door Locks in 2025
1. Best Overall: Keypad Deadbolt with App Control
For most homeowners, a keypad deadbolt with app connectivity hits the sweet spot. You get PIN code access, a mobile app for remote locking/unlocking, and a physical key backup. Battery life typically lasts 6–12 months.
2. Best for Rentals: Interchangeable Code Lock
If you rent your property on Airbnb or similar platforms, a lock that lets you set temporary codes for guests is a game-changer. Create unique codes for each guest, set expiry times, and see access logs — all from your phone.
3. Best Budget Pick: Retrofit Smart Lock
A retrofit lock fits over your existing deadbolt on the inside, so you keep your exterior hardware unchanged. Great for renters or anyone who wants smart access without modifying the door.
Installation: Harder Than It Looks?
Most smart locks are DIY-friendly and take 20–30 minutes to install with just a screwdriver. The tricky part is ensuring the lock is properly aligned — a misaligned strike plate causes the most issues. If your door sticks or has gaps, sort that first.
Are Smart Door Locks Secure?
Yes — when chosen carefully. Look for locks with 128-bit AES encryption, two-factor authentication for the app, and ANSI Grade 1 or 2 certification (the industry standard for physical security). Avoid cheap, unbranded units with no encryption.
Ready to Upgrade?
Browse our range of smart door locks at Keviq — all carefully selected for reliability, security, and ease of installation. Free UK delivery on all orders.