Add a new smart lock to an existing door

Here’s a step-by-step guide to ensure compatibility, proper installation, and security:

Step 1: Choose the Right Smart Lock

• Check compatibility with your existing deadbolt or door type (timber, metal, glass).

• Decide on features:

  • Wi-Fi/Bluetooth control

  • Fingerprint, keypad, or app access

  • Integration with Apple HomeKit, Google Home, or Alexa

• Popular options:

  • August Smart Lock Pro

  • Yale Assure Lock SL

  • Lockly Secure Pro

  • Samsung SHP-DP609

Step 2: Prepare Your Existing Door

• Measure the borehole and backset (standard is 54mm hole, 60–70mm backset).

• Check door thickness (most locks support 35–55mm).

• Ensure the door alignment and latch mechanism are smooth.

Step 3: Remove Old Hardware

• Unscrew and remove the old deadbolt or knob/lever.

• Keep the strike plate if it’s compatible; otherwise, replace it.

Step 4: Install the Smart Lock

• Follow the manufacturer’s instructions:

  • Insert the new latch/deadbolt mechanism

  • Mount the interior and exterior units

  • Attach batteries and/or plug in power

• Secure all screws firmly without overtightening

Step 5: Set Up & Connect

• Download the lock’s app (e.g., Yale Access, August App)

• Follow setup steps:

  • Connect via Wi-Fi or Bluetooth

  • Add fingerprints, passcodes, or users

  • Enable smart home integrations if needed

Optional:

• Install a door sensor for auto-locking features

• Use a Wi-Fi bridge if remote access is needed and the lock only supports Bluetooth