Your front door is your home’s first line of defense—but not all door locks provide the same level of protection. With so many options on the market, choosing the right lock can feel overwhelming. Understanding the strengths and weaknesses of each type can help you make a smarter, safer decision for your home and family.
Here’s a breakdown of the most common door lock types and how they stack up in terms of security.
1. Knob Locks
Knob locks are commonly found on residential doors, but they should never be your primary security measure. Because the locking mechanism is in the knob itself, they’re relatively easy to break or force open.
Security level: Low
Best use: Interior doors only
2. Deadbolt Locks
Deadbolts are one of the most secure and widely recommended options for exterior doors.
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Single-cylinder deadbolts use a key on the outside and a thumb turn on the inside.
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Double-cylinder deadbolts require a key on both sides, offering extra security but raising safety concerns during emergencies.
Security level: High
Best use: Front and back exterior doors
3. Smart Locks
Smart locks combine convenience with modern security features. They allow you to lock and unlock doors using a smartphone, keypad, or biometric access. Many models integrate with home security systems and provide activity alerts.
Security level: High (when professionally installed and properly configured)
Best use: Homes looking for convenience, monitoring, and access control
4. Lever Handle Locks
Lever handle locks are often used on interior or side doors and are easier to operate than knob locks. While convenient, they’re generally less secure than deadbolts unless reinforced.
Security level: Medium
Best use: Interior doors or paired with a deadbolt on exterior doors
5. Mortise Locks
Common in older or high-end homes, mortise locks are installed inside the door rather than mounted on the surface. They’re durable and resistant to forced entry when properly installed.
Security level: High
Best use: Solid wood or metal doors
6. Keyless Entry & Biometric Locks
These locks eliminate traditional keys entirely, using codes, fingerprints, or facial recognition. They reduce the risk of lost or copied keys and offer detailed access tracking.
Security level: High
Best use: Homeowners who want advanced control and key-free access
So, Which Lock Is the Safest?
For most homes, a high-quality deadbolt combined with a smart or keyless lock offers the best balance of security and convenience. However, even the strongest lock won’t perform well if it’s poorly installed or paired with a weak door or frame.
That’s why professional installation and a complete security approach matter. At Catawba Security, we help homeowners choose and install locks that work seamlessly with their overall security system—keeping your home protected from every angle.
