How to Choose the Right Deadbolt for Maximum Home Security
The deadbolt on your front door is arguably the most important security device in your home. Unlike spring-bolt locks that can be defeated with a credit card, a deadbolt extends a solid metal bolt deep into the door frame, providing serious resistance against forced entry. But not all deadbolts are created equal. Heres how to choose the right one.
Understanding Deadbolt Grades
The American National Standards Institute (ANSI) and Builders Hardware Manufacturers Association (BHMA) rate deadbolts on a three-tier grading system. Grade 1 is the highest security rating, designed for commercial use but increasingly popular in homes. These locks must withstand 10 strikes of 75 pounds of force and 250,000 lock/unlock cycles. Grade 2 is designed for residential use and offers excellent security for most homes. Grade 3 is the minimum acceptable standard and offers basic security.
Single Cylinder vs Double Cylinder
Single cylinder deadbolts use a key on the outside and a thumb turn on the inside. They are the most common type and are convenient because you can always unlock from inside without a key. Double cylinder deadbolts require a key on both sides. They are more secure against break-ins near glass (an intruder cant reach through broken glass to turn a thumb turn), but they pose a fire safety concern because you need a key to exit.
Many fire codes restrict double cylinder deadbolts. If you choose one, always keep a key near the door (but out of reach from the outside) for emergency exit.
Key Features to Look For
When shopping for a deadbolt, consider the bolt throw length (a minimum of 1 inch is standard, but longer is better), the bolt material (solid steel or brass is ideal, avoid pot metal), anti-pick pins (security pins that resist lock picking), anti-drill protection (hardened steel inserts that break drill bits), anti-bump design (mushroom pins or sidebar mechanisms), a reinforced strike plate (the plate is only as strong as its installation — use 3-inch screws that reach the door frame), and bump resistance (BumpGuard or similar technology).
Top Deadbolt Brands We Recommend
Based on our years of experience installing and servicing locks, here are our top recommendations: Medeco (premium security with patented key control), Schlage B60N (excellent Grade 1 security at a reasonable price), Kwikset 980 (solid Grade 1 deadbolt with SmartKey technology), Mul-T-Lock (high-security with interactive key control), and Baldwin (premium aesthetics with solid security).
Professional Installation Matters
Even the best deadbolt is only as secure as its installation. Common DIY installation errors include improper bore alignment (causing premature wear), inadequate strike plate installation (using short screws that only reach the door jamb), incorrect bolt-to-strike alignment (creating a weak point), and failing to reinforce the door frame. Professional installation by a licensed locksmith ensures your deadbolt provides maximum protection. Call Top Locksmith CA at (818) 987-2214 for expert deadbolt installation throughout California.