This isn’t just a generic “best locks” list, if you want our overall picks across all lock types, see Best Door Locks for Home Security. Here, we’re narrowing in on deadbolts specifically, and the California-specific rules that change what “best” actually means here versus other states.
California’s Egress Rule Comes First
Before you shop for a deadbolt, know this: California’s residential building code (based on the CRC/IRC fire-egress requirements) generally requires that any exterior door along a required emergency escape path be openable from the inside without a key, tool, or special knowledge, meaning a standard single-cylinder deadbolt with an interior thumbturn, not a double-cylinder (key-on-both-sides) deadbolt. Double-cylinder deadbolts are only allowed in narrow circumstances (typically where there’s glass near the door) and even then usually require the key to be readily accessible nearby. If you’re unsure what applies to your door, ask your locksmith or check with your local building department before installing.
ANSI Grades, in Plain English
- Grade 1: Commercial-grade. Best resistance to kick-ins, drilling, and wear. Worth it for front doors and any door that’s your primary entry.
- Grade 2: Mid-tier residential. Solid for secondary doors.
- Grade 3: Builder-grade minimum, what most tract homes ship with. Fine as a backup, not ideal as your only line of defense.
Corrosion and Weather Considerations
If you’re near the marine layer, Toluca Lake (91602), Universal City (91608), look for solid brass or stainless steel components rather than cheaper plated zinc, which corrodes faster with humidity exposure. In the foothill communities with more sun and heat, Altadena (91001), Arcadia (91006), Sierra Madre (91024), UV exposure can fade or weaken exterior-facing finishes over time, so a powder-coated or anodized finish holds up better long-term.
Insurance Discounts Worth Checking
Several California homeowners insurance carriers offer small premium discounts for ANSI Grade 1 deadbolts or monitored smart locks. It’s worth a call to your agent before you buy, the discount can sometimes offset the price difference between grades.
Our Picks
- Schlage B60N (Grade 1): Our default recommendation for primary entry doors, reliable, widely available parts, straightforward to rekey.
- Medeco high-security cylinders: For homeowners who want keys that can’t be duplicated at a hardware-store kiosk, common in rental properties and higher-value homes.
- Kwikset SmartKey: Best if you want to rekey it yourself in seconds without calling a locksmith every time.
Installation Matters as Much as the Lock
A Grade 1 deadbolt installed into a weak strike plate with short screws is barely better than a Grade 3 lock installed correctly. Make sure your installer uses a reinforced strike plate and 3-inch screws that reach the door frame stud, not just the trim.
Need a proper deadbolt upgrade done right? See our Safes & Deadbolts service or explore Smart Locks if you want keyless convenience with the same security grade. Call us at 818-249-5128 to get it installed correctly the first time.