How to Choose the Right Garage Door Lock

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Joseph Mendez

Technical Director

July 9, 2025
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Your garage stores many important belongings: your car, tools, appliances, and all sorts of equipment. However, all these items make your garage a prime target for thieves. Before break-ins occur, consider investing in a garage door lock for an added layer of security for your home and family.
 
If you’re new to garage door locks, don’t fret! In this guide, we’ll discuss the different types of garage door locks and how to choose the right one for your home. You can also reach out to us for same-day garage door repair in Los Angeles, and we’ll install your new lock right away.
 

Why is it crucial to choose the right garage door lock?

Installing a lock on your garage door is as important as having one on your front door. It’s a matter of safety and peace of mind, especially if you’re using your garage for storage or as a functional space.
 
Here’s why you should consider getting a garage door lock soon:
 

Your garage door is more vulnerable than you think.

According to a survey conducted by the International Association of Certified Home Inspectors, 9% of burglars enter through the garage. The same survey also found that 81% of burglars enter through the first floor – the same area where your garage is.

Your garage door is a huge weak spot on your home.

Since your garage door covers a bigger opening, it also has many possible entry points. Without a lock, thieves can easily pry your door open and instantly enter your property. Worse, most garage doors are directly connected to living rooms. Imagine a burglar gaining access to the same space where your family stays.
 

Your unsecured garage door is an easy target for repeat intrusions.

Burglars are opportunists. They are unlikely to waste time or risk injury trying to break into a heavily secured and locked garage door. So, if you’ve had a garage door break-in before and still haven’t installed a lock, don’t be surprised if you wake up to another burglary. Take note that repeat intrusions can be more dangerous as burglars are already familiar with your home’s layout and access points.
 

Types of garage door locks

Choosing the right garage door lock is crucial to protect your home from unauthorized access. There are many types for you to choose from, including the following:
 

1.   Slide bolt locks

Slide bolt locks are the most common type of lock used for overhead garage doors. It has a latch that slides vertically into a bracket with a pre-cut hole, preventing your door from moving.
 
Slide bolt locks are often used on manual doors or as an added layer of security for automatic garage doors. If you’re using a motorized opener, be sure to double-check if the slide lock is engaged. Some homeowners operate their door while the slide lock is engaged, which can burn the opener motor and warp the top garage door section.
 

Pros

  • Installed inside the garage and not visible from the outside
  • Affordable and easy to DIY
  • Not electronic and can work in all conditions
  • Low-maintenance and replacements are easy to come by
 

Cons

  • Requires manual operation, which can be inconvenient
  • Can be vulnerable if your door panels are damaged or flimsy
 

2.   T-handle locks

T-handle locks are among the most popular types of garage door locks. It has a rotating T-shaped handle mounted outside and connected to an internal locking mechanism. It works by engaging a latch bolt whenever the handle is rotated.
 
Once engaged, a T-handle lock will prevent your door from being lifted or slid open. Depending on the size of your door, you can install T-handle locks on both sides for added protection. It also comes with a key, allowing you to secure the lock against unauthorized use.
 

Pros

  • Can work as a visible deterrent to burglars
  • Compatible with almost every garage door type
  • Conveniently accessible outdoors
  • Affordable lock option
 

Cons

  • You have to keep the T-handle lock keys to prevent them from being stolen.
  • Installation requires modification of your garage door, which may void warranties
  • Cheap T-handle locks can be easily picked or pried open
 

3.   Garage deadbolt lock

If you’re looking for heavy-duty protection, garage deadbolt locks would be a good option. It works similarly to a standard deadbolt lock, just like what may have been installed on your front door.
 
Deadbolt locks use a solid metal bolt that slides into a strike plate mounted on the garage door frame. It’s harder to force open than slide locks or T-handle locks. You can also rekey a deadbolt lock in case your original key got lost, stolen, or damaged.
 

Pros

  • Excellent option if you want a strong physical protection for your garage door
  • Very secure and provides more confidence than other basic locks
  • Available in both manual and automatic models
 

Cons

  • More complex to install
  • May not be compatible if your garage door has a thin frame
  • Can become stiff or jam over time without proper maintenance
 

4.   Smart lock

Smart locks or keyless systems are often used for entry doors, but it can also be fitted on garage doors for convenience and security. They are available in various access types, such as keypad, remote control, biometrics, and more. Since it doesn’t have a traditional keyhole, it will be difficult to pick or open without permission.
 
You can also control smart locks through a smartphone app, allowing you to create or disable entry codes on the go. The same app will also let you review access logs, so you can check for unauthorized access.
 

Pros

  • Allows you to create temporary codes for guests or deliveries
  • Lets you keep track of access codes and entry logs
  • Convenient keyless access, so no need to worry about losing a key
  • Can be integrated with smart home devices
 

Cons

  • Smart locks are more expensive than traditional ones
  • Will stop working during a power outage unless you have a battery backup
  • Complex installation and setup
 

5.   Padlocks

Padlocks are the most affordable garage door locks that can be easily found in a local hardware store. You can use padlocks with chains, hasps, or other hardware to secure your garage door.
 
Take note that padlocks come in various security ratings, such as the CEN system. Padlocks with a CEN Grade 1 rating offer the lowest level of security, so try to get one with the highest grade for optimal protection.
 

Pros

  • Affordable and widely available in hardware stores
  • No professional installation needed
  • Can be combined with slide locks for better protection
  • You don’t need to modify your garage door.
 

Cons

  • Low-quality padlocks can be destroyed with bolt cutters or forced entry
  • Lower deterrence against break-ins compared to other lock types
 

6.   Garage door defenders

Garage door defenders are external devices with a base plate anchored to the floor, directly where your door sits when closed. This garage door lock kit also includes a T-bar and a bolt, which prevent the door from swinging outward. Garage door defenders can also sit flush to the bottom panel’s curvature, preventing it from moving upward.
 
Overall, garage door defenders are effective physical barriers. It’s made of solid steel and would be very difficult to pry or damage.     
 

Pros

  • Effective both as a visual and physical deterrent
  • Can withstand brute force, as long as you get a quality unit
  • The padlock comes with a durable casing.
 

Cons

  • Challenging to install since it requires bolting a base plate to the floor
  • You may need more than one bar to prevent thieves from peeling off the door’s corners.
  • Takes time to open or close, which can be an issue if you’re running late

7.   Anchor lock

Anchor locks consist of a metal plate anchored to the floor and a locking mechanism installed on the bottom door panel. You can also install anchor locks to the side of the door if your floor doesn’t have a durable surface.
 
Basically, the locking mechanism will latch to the bottom plate, which you’ll secure with a padlock. This manual lock is affordable, easy to install, and will prevent your door from being lifted. You can install it inside or outside your garage door, depending on your preference.
 

Pros

  • Suitable for almost all garage door types
  • Affordable and low-maintenance lock
  • Easy to install, and you can use a high-grade padlock for better security
 

Cons

  • If the metal plate isn’t flush to the floor, it can be a trip hazard.
  • Requires manual operation
 

8.   Automatic garage door opener lock

If you want the combination of security and convenience in a garage door lock, you can opt for an automatic garage door opener lock. These are integrated into your motorized opener system, which automatically locks your door when it closes. There’s no need to key in a padlock or type access codes, perfect for busy schedules.
 
Major garage door brands like LiftMaster, Chamberlain, and Genie offer these locks that easily integrate with their modern opener models. There’s also Elocksys, the garage door lock Shark Tank made famous.
 

Pros

  • Automatic locking mechanism, so there’s no need for manual operation
  • Can integrate with your smart home system
  • Can be controlled through smartphone apps, such as the popular myQ app
  • Guaranteed peace of mind if you keep forgetting to engage the manual locks
 

Cons

  • Dependent on electrical power, so you need to install a battery backup
  • Often requires professional installation and setup
  • Will require professional servicing when electronic components malfunction
 

Factors to consider when choosing a garage door lock

Aside from lock type, you also have to consider the following factors to find the one that suits your garage door:
 

1.   Type of garage door

Take note that not all locks work for every garage door. You have to consider your door type when choosing the right lock, such as the following:
 
  • Sectional garage doors – More compatible with T-handle, slide bolt, automatic opener lock, and smart locks
  • Roll-up garage doors – Best secured with slide bolts, ground locks, and anchor locks
  • Swing-out garage doors – Works best with T-handle locks, padlocks, and garage door defenders
  • Tilt-up garage doors – More compatible with deadbolt locks or slide bolts
 
If you’re still unsure what type of lock suits your garage door, you can always contact us at Rock Garage Door Repair for professional advice. We can give you a quick phone consultation and a free quote, so you can assess which lock suits your needs and budget!
 

2. Safety features

Safety is the primary reason for installing a garage door lock, so it’s essential to choose one with the right features. Generally, homeowners like you would look for the following:
 
  • Hardened steel material. This way, your lock will be difficult to cut or removed through forced entry.
  • Anti-pick pins. Locks with anti-pick pins make it difficult for intruders to override the locking mechanism.
  • Automatic locking. Always forgetting to put a padlock on? Consider getting an automatic locking system that engages the moment you close your door.
  • Backup access. If you’re opting for an automatic lock, ensure it has a backup access feature, allowing you to override or release the lock during a power outage.
 

3. Installation requirements

Most of the time, locks that require complex installation are also the hardest to breach. While it may require professional installation, it’s a worthy investment if you want optimal security for your garage.
 
However, if you’re only looking for supplemental locks, you can always DIY padlocks, anchor locks, or slide bolts.
 
Just note that if the lock installation requires modification of your garage door, you should consider hiring a licensed technician to keep the door’s warranty coverage.
 

4. Budget considerations

Lastly, you should consider how much you’re willing to spend on a garage door lock.
 
You can opt for affordable options, such as padlocks, slide bolts, or anchor locks. However, these locks have a lower security level than pricier models.
 
If budget isn’t an issue, you can invest in automatic opener locks or smart locks for better protection. Take note that you can also combine both affordable and premium garage locks to enhance your home’s security.
 

Get your new garage door lock installed today!

Intruders can strike when you least expect it. Instead of compromising your family and home’s security, you should reinforce your garage door with quality and reliable locks!
 
Whether you’re looking for a garage door lock replacement or a new installation, you can reach out to us at Rock Garage Door Repair. We offer 24/7 and same-day service anywhere in Los Angeles and the surrounding areas.
 
Our licensed and insured garage door technicians can install and provide all types of garage door locks. We can also service all garage door models, brands, and types!
 
Contact us today for same-day or scheduled garage door service!
 

FAQs about garage door locks

How to manually lock a garage door?

To manually lock your garage door, you can install a slide bolt, a hasp for a padlock, or an anchor lock. This way, your garage door won’t be opened if your automatic garage door opener is not working.
 

Does my garage door need a lock?

If you’re concerned about burglary or unauthorized access to your garage door, consider installing a lock. A manual or automatic lock will enhance not just your garage’s security, but also the rest of your property.
 
If your garage is connected directly to your home, you should definitely install a lock for added protection and peace of mind. You can call us at Rock Garage Door Repair to get a new lock installed!
 

How to measure a garage door lock?

To measure the size of your garage door lock, you can measure the center of the fixing screw hole on the outside of your door up to the outer edge of your lock. Please note that specific lock brands have their own sizing charts, so always check first before purchasing a replacement.
 
If you’re unsure of the lock size you need, our technicians at Rock Garage Door Repair can help.
 

How do I stop someone from opening my garage door?

To prevent unauthorized individuals from opening your garage door, consider installing a durable lock, changing your passcode, or reprogramming a new remote controller.  Also, ensure that all your remotes and key locks are secured to prevent theft.
 

Do all garage doors have a manual lock?

Many modern garage doors are already equipped with manual locks or a provision to install one. However, if you have an older door or a basic model, you may have to modify your garage door to install a lock. You also have the option to use garage door defenders if you don’t want to drill through your door panels.
 

Can someone open a garage door from the outside?

Yes, someone can open your garage door from the outside, especially if you don’t have any locking mechanism in place. This can happen if your emergency garage door is accessible and can be pulled, your remote controls have been stolen, or if there are vulnerable areas that intruders can pick. This is the reason why you should invest in a durable lock before someone tries to break in!
 

Can someone open my garage door without my remote?

Yes, it’s possible for someone to open your garage door without a remote. Intruders can try to access your emergency release cord through a gap or window on your door. They can also exploit other vulnerabilities on your garage door, such as damaged panels, weak manual locks, and poor lighting.
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