Understanding Automatic Garage Door Locks and Their Functionality
Garage door security remains a primary concern for homeowners who wish to safeguard their property. In recent years, automatic deadbolt garage door locks have gained popularity, especially with the advent of wall-mount jackshaft openers. Unlike traditional trolley-based openers, these wall-mounted systems do not secure the door in the down position through a trolley arm, necessitating the use of an overhead deadbolt lock for enhanced security. Installed strategically above one of the rollers, this lock prevents unauthorized external attempts to lift the door manually, adding an extra layer of protection.
Are Automatic Garage Door Locks Equivalent to Deadbolts?
Yes. The automatic deadbolt locks integrated with modern openers feature a robust deadbolt mechanism that extends outward once the garage door is securely closed. Positioned approximately two inches above the roller, this deadbolt acts as a barrier against forced entry. When you activate the wall switch to open your garage, the deadbolt retracts, allowing smooth operation of the door.
Security Effectiveness of Automatic Locks
Automatic garage door locks are highly effective in preventing unauthorized access by physically obstructing the roller path. For enhanced security, installing two such locks can significantly reinforce the door’s resistance to high winds and break-in attempts, offering homeowners peace of mind.
Standard Automatic Locks in Popular Garage Door Openers
LiftMaster Models
LiftMaster’s line includes the 841LM automatic lock, which is standard on their wall mount openers such as the 8500, 8500W, 8500C, and the new 98022 model without cable tension monitoring. These openers are compatible with trolley-based units like the 8587W, 8580WLB, 85870, and 87802, which do not include the lock but can be equipped with one. Notably, LiftMaster allows installation of up to two automatic locks for maximum security.
Chamberlain Offerings
The Chamberlain 041A6102 automatic garage door lock kit is bundled with their RJO20 and RJO70 wall mount openers. Sharing identical specifications with LiftMaster’s 841LM, these locks are cross-compatible, allowing installation of two units on compatible openers for superior protection.
Genie’s Automatic Lock Options
Genie’s current automatic lock model, 41149R, is designed exclusively for their newer wall mount models such as the 6070 and 6170. Mounted along the track, it functions similarly to LiftMaster’s deadbolt, but is not compatible with standard trolley openers. As of now, Genie does not offer an automatic lock for their traditional trolley-style openers.
Guardian’s Security Solutions
The Guardian 928 wall mount opener is equipped with a single automatic lock, which operates with a deadbolt actuator and includes a manual release lever. Its design aims to provide reliable security and ease of manual operation when needed.
Installing Multiple Automatic Locks
Most LiftMaster wall mount openers are equipped with two connection ports, allowing homeowners to install two automatic locks simultaneously for enhanced security. Chamberlain models also support dual installation. The Guardian 928’s specifications indicate the presence of two lock terminals, suggesting compatibility with two locks, though confirmation is recommended. Conversely, Genie’s wall mount models typically feature only a single terminal connection, limiting installation to one lock.
Troubleshooting and Maintenance of LiftMaster 841LM Locks
The LiftMaster 841LM has been a trusted component since its introduction, though some units have experienced issues such as motor failure or grinding noises. Notably, updates in design have resulted in shorter deadbolts in newer versions, possibly affecting performance. While reliability has generally been good, ongoing maintenance and timely replacements are advisable for optimal security.
Disabling or Bypassing Automatic Locks Safely
Automatic locks feature a manual slide release lever, enabling manual disengagement during power outages or maintenance. If necessary, the lock can be unplugged entirely, which does not affect the basic operation of wall mount openers, as they rely on the torsion shaft’s locking mechanism. However, removing the lock reduces security, as the door could potentially be lifted manually with less resistance. For safety and security reasons, it’s recommended to keep the automatic lock engaged and operational at all times.
Tools and Requirements for Installing an Automatic Lock
- Stepladder
- 5/16” and 3/4” drill bits
- Screwdriver
- Measuring tape
- Staple gun
Before installation, ensure the opener is unplugged and the backup battery is disconnected. Remove manual locks or disable any existing locks on the garage door. Typically, the lock is installed above the second roller, but the third roller position can be used if preferable.
Cost of Replacement Automatic Locks
Replacement units for brands like LiftMaster, Chamberlain, Genie, and Guardian generally range from $100 to $150. Additional service charges for professional installation can add $60 to $100, covering labor and inspection.
Frequency of Garage Door Break-Ins
Incidents of garage door break-ins are relatively rare. Based on extensive experience in the industry spanning over three decades, attempted intrusions are uncommon and often unsuccessful. Most burglars tend to damage external locks rather than breach the door itself. While securing your garage is crucial, it’s important to avoid falling prey to exaggerated online fears suggesting quick and effortless break-in methods, which are often propagated by security product marketers.
Final Thoughts
The automatic locks discussed here represent some of the most effective security options available today, especially when paired with compatible wall mount openers. While other security solutions exist, our practical experience primarily involves LiftMaster’s reliable and widely used products. The longevity of Genie and Guardian locks remains to be fully established, but current offerings show promising potential for long-term protection.