Smart Locks: What You Need to Know (2026)

A smart lock replaces or supplements your existing deadbolt or door knob lock, letting you control access via a smartphone app, PIN code, fingerprint, key fob, or voice command. Most models connect via Bluetooth, Wi-Fi, or Z-Wave, and many integrate with platforms like Google Home, Amazon Alexa, or Apple HomeKit.

The core components are a motorised bolt mechanism, a communication module, and a power source (usually four AA batteries lasting 6 to 12 months). Some models retrofit over your existing deadbolt cylinder, meaning you keep your existing key as a backup. Others require replacing the full lockset.

Retrofit vs. Full Replacement

Retrofit models like the Schlage Encode and August Smart Lock Pro attach to the inside of your door and work with your current deadbolt. These are popular with renters or homeowners who don't want to alter the exterior appearance of their door. Full replacement models like the Yale Assure Lock 2 or Lockly Secure Pro replace the entire lockset and generally offer a more polished look and wider feature set.

Yale and Schlage are the two brands most frequently recommended by Australian locksmiths due to their Grade 1 ANSI security certification and availability of local support. Lockly's fingerprint scanner is notably fast and accurate, making it a strong choice for households with young children or elderly members.

Most smart locks can be installed in 30 to 60 minutes by a licensed locksmith. A standard lock change costs $70 to $200 for the labour component according to current Hipages data, but smart lock installs often run slightly higher due to the time needed to configure the app, test connectivity, and ensure the motorised bolt aligns correctly.

Expect to pay:

• Call-out fee: $80 to $120 during business hours
• Labour for smart lock install: $100 to $180
• Total installed cost (hardware included): $350 to $900+

After-hours installation pushes costs higher. Based on Reddit discussions from Australian homeowners, a single lock change or install outside business hours can run $150 to $350 for labour alone. Always ask for a quote upfront.

Finding a Qualified Locksmith

Smart locks are more complex than standard deadbolts. Look for a locksmith with experience in electronic or smart lock systems, not just mechanical locks. There are over 700 lock change and replacement businesses listed across Australia, with strong concentrations in Melbourne (216 listings), Sydney (179), and Brisbane (90). Businesses like Terry's Locksmiths (4.9 stars, 3,017 reviews) and Express Locksmith Gold Coast & Tweed (5.0 stars, 1,375 reviews) have strong track records with residential lock work. Over 82% of listed locksmiths offer 24/7 emergency service if you're locked out after hours.

Not every feature commands a higher price tag for good reason. Here's what genuinely adds value for Australian homeowners:

Auto-Lock

Auto-lock engages the deadbolt automatically after a set time (30 seconds to 30 minutes). This is one of the most practical features, especially for households with kids who forget to lock up. Available on most mid-range and premium models.

Activity Logs

Smart locks record every entry and exit with a timestamp. This is useful for monitoring tradies, cleaners, or household members. Look for models that store at least 100 log entries and sync to your phone without requiring a hub.

Temporary Access Codes

Assigning a PIN that expires after a set period is invaluable for Airbnb hosts, rental property managers, or homeowners coordinating tradesperson access. Yale and Schlage both handle this well through their respective apps.

Backup Power and Physical Key Override

Batteries will eventually die. Choose a lock with an external USB or 9V battery terminal for emergency power, or one that accepts a physical key override. The Schlage Encode has a physical key slot; the Yale Assure Lock 2 does not, so it relies entirely on battery backup planning.

Grade 1 Security Rating

ANSI/BHMA Grade 1 is the highest residential security rating. It means the lock has passed tests for kick resistance, cycle endurance, and bolt strength. Not all imported smart locks carry this rating, so confirm before purchasing.

This is the most common concern raised by homeowners, and it's a fair one. Smart locks introduce two potential vulnerabilities: digital attack and physical bypass. Here's a realistic assessment:

Digital Security

Reputable brands use AES-128 or AES-256 encryption for their communication protocols. Schlage and Yale both have solid records in third-party security audits. Avoid cheap, unbranded smart locks from overseas marketplaces. These often use weak Bluetooth protocols that can be intercepted with basic tools.

Physical Security

A smart lock is only as strong as its deadbolt and door frame. A Grade 1 smart lock on a hollow-core door with a weak strike plate is still easy to kick in. Pair any smart lock upgrade with a reinforced strike plate using 75mm to 100mm screws that reach the door stud, not just the frame.

Power Outages

Most smart locks run on batteries and are unaffected by power outages. However, Wi-Fi dependent features like remote access require your router to be running. During extended outages, keypad PIN or physical key access still works on most models.