The Ultimate Guide to Garage Door Security

This section of our home security guide focuses on garage door security. Modern garages often store cars, tools and valuables, so knowing how to secure a garage door, and fitting the best garage door locks for your door type, is essential. Below we cover the most secure garage door options, high security garage door locks, and practical garage security ideas to protect your garage and your home.

Why Garage Security Matters

Whether your garage is attached or detached, it can be a target for burglars. Around 20% of home break-ins involve entry through a garage. Many homeowners underestimate the importance of locking a garage door, with surveys showing that 50% of those who have previously experienced break-ins still leave their garage unsecured.

A well-secured garage not only protects your possessions, often worth around £1,650, but also prevents burglars from using the garage as a route into your home. The most effective approach is layered garage security: combining strong garage door locks with lighting, alarms and good maintenance.

The Best Garage Door Locks

Choosing the best garage door locks depends on your door type, but the strongest setups always layer more than one lock. Below are the garage door locks our locksmiths recommend most often, ranked by the level of protection they offer. For serious security, we suggest combining a primary lock with a floor-anchored garage door defender.

Our top recommendation: For most UK homes with an up-and-over door, a garage door defender paired with the door’s existing locks offers the best balance of cost, deterrence and strength. It anchors into the ground and physically stops the door being forced open, even if the main lock is defeated. Roller and sectional door owners should prioritise integrated motor locks and pin locks instead.

A locksmith can assess your door and fit the right combination, call Keytek to have the best garage door locks installed.

High Security Garage Door Locks

If your garage stores high-value items, a vehicle, or provides access into your home, it’s worth upgrading to high security garage door locks that meet recognised UK standards. Standard factory-fitted locks are often the weakest point, so look for the following:

• TS007 3-star / BS 3621 rated cylinders: anti-snap, anti-pick and anti-drill cylinders for any side door or up-and-over door fitted with a Euro cylinder. These are also insurance approved locks.
• Secured by Design (SBD) doors: garage doors carrying the Police Preferred Specification have been independently tested against forced entry.
• LPS 1175 (SR1 and above) or STS 202 rated doors: the benchmark standards for automatic and roller shutter doors, certifying resistance to sustained attack.
• Kitemarked garage door defenders and ground anchors: hardened steel devices that resist cutting and levering.

Upgrading to high security garage door locks not only makes forced entry far harder, it can also lower your home insurance premium and strengthen any future claim. Our locksmiths can supply and fit British Standard and SBD-approved hardware; book a locksmith to upgrade your garage.

How Burglars Force Garage Doors

Older doors are vulnerable to drilling, prying, or cutting. Modern doors with garage door security bars and reinforced locks are much harder to break into. Roller and sectional garage doors require intensive effort to penetrate, deterring opportunistic thieves.

Garage Door Security Features

Modern doors typically include:

• Two locks (one per side) with optional upgrades.
• Reinforced bars to protect the locks.
• Compatibility with garage door defenders and additional deadbolts for up and over doors.

Side doors and windows should also be secured to maintain complete garage security.

Garage Security Ideas

• Install locks on both sides of the door or ground-lock security bars
• Strengthen strike plates
• Use electric doors with integrated motor locks
• Keep doors closed to prevent opportunistic burglaries
• Check for rust or deterioration regularly
• Use a garage door defender anchored to the ground
• Install outdoor security cameras and lighting

Securing Garage Windows

Unsecured windows offer a clear target. Here are the top tips for securing garage windows:

• Non-transparent window coverings
• Strong window locks
• Protective security films
• Window sensors integrated with alarms
• Plant thorny bushes below windows for deterrence

How to Secure Your Garage Door

Follow these steps to secure your garage door and reduce the risk of a break-in:

1. Fit the best garage door locks for your door type (see the table above)
2. Install security lighting
3. Add a garage alarm system
4. Use a garage door defender
5. Secure valuables with wall or floor anchors
6. Ensure lockable garage doors are fitted with quality, high-security locks

Top Tip: Ensure that your garage is covered by your home insurance policy to help protect your valuables. Make sure your garage side door has insurance approved locks by installing a BS 3621 or TS007 rated lock.

Smart Garage Security Options

• Garage Door Sensors: Detect when the door is opened and send alerts to your smartphone. Ideal for up-and-over, sectional, or roller doors.
• Motion-Activated Cameras: Monitor movement around your garage, recording activity and providing real-time notifications.
• Smart Alarms: Can include entry sensors, glass-break sensors, and motion sensors. Popular UK brands include Yale, Ring, Chubb, and ADT UK.
• Integrated Electric Locks: Some automatic garage doors have locks built into the motor system, preventing manual lifting or forced entry.

Benefits of Smart Garage Security:

• Immediate alerts for attempted entry, even when you are away.
• Integration with wider home security systems.
• Acts as a deterrent to opportunistic burglars, especially in visible garages.

Location and Environmental Considerations

Where your garage is located can significantly impact how to secure a garage door:

• Attached Garages: Higher risk, because burglars can potentially access the home through the garage. Reinforced locks, defenders, and alarms are essential.
• Detached Garages: Often more vulnerable to opportunistic attacks due to lower visibility. Security lighting, cameras, and robust locks are recommended.
• Urban Areas: Garages in high-density areas may face more break-ins. Motion-sensor lighting and visible deterrents like cameras or garage door defenders help prevent attacks.
• Rural Areas: Isolated garages may be at risk of targeted theft. Reinforced doors, alarms, and secure windows are critical.

Top Locksmith Tip: Always consider line of sight, visibility from the street, and proximity to neighbours when planning garage security.

Garage Door Maintenance and Inspection

Regular maintenance is crucial for keeping your garage door secure. Even the most secure garage door can fail if it is poorly maintained. Follow these key steps:

Inspect Locks and Hinges

• Check T-handle locks, sliding drop bolts, ground locks, and garage door defenders for wear or rust
• Lubricate hinges and moving parts to prevent stiffness or breakage
• Ensure roller garage door security locks and pin locks are correctly aligned

Check Door Alignment and Operation

• Make sure up and over doors and automatic doors open and close smoothly
• For automatic doors, test the sensors and motor locks to confirm proper functioning
• Misaligned doors can compromise garage security

Recommended Frequency

• Inspect garage doors every 3–6 months
• Automatic and smart doors should be tested monthly
• Replace locks or parts showing significant wear immediately