Importance of Locking Your Front Door | Stop Forced Entries

Most break-ins are crimes of opportunity. A burglar testing your handle and finding it locked will almost always move on to an easier target. The importance of locking your front door comes down to simple math: every second of forced entry effort works against the intruder and in your favor, and police crime-prevention guidance is blunt that a closed but unlocked door does nothing to stop theft.

The good news is that locking properly takes about five seconds. The hardware standards behind modern deadbolts are aggressive, and the habits that keep a home secure are easy to build once you know what actually matters.

What the Official Security Guidance Says

Police crime-prevention guidance for homes is direct: double-lock the door every single time you leave the house, even for a short errand. For doors with a key-operated multi-locking mechanism, the instruction is to lift, lock, and remove the key. The reason is simple—a lock that is engaged but not fully thrown offers minimal resistance; a fully engaged bolt is what stops a shoulder or a crowbar.

The same guidance stresses that a home is only as secure as its weakest entry point. That means checking all external doors and windows before you head out, not just the front door. A reinforced front door with a weak rear window beside it is still a vulnerable home.

Why Deadbolt Standards Matter for Home Security

Modern residential deadbolts are tested against aggressive standards that most homeowners never hear about.

What that number means in practice: a quality deadbolt that meets this standard is designed to hold against a serious forced-entry attempt. The standard’s materials note that deadbolts are expected to provide a high degree of security from the outside, and the three testing areas—security, durability, and finish—ensure the lock resists both brute force and everyday wear. When you buy a lock with BHMA certification marks, you’re buying hardware that has survived a gauntlet of abuse in a lab, not just a pretty handle.

Common Mistakes That Undermine a Good Lock

The most common error is simply shutting the door without engaging the lock. A latch that catches does not equal a locked door; a deadbolt thrown into its strike plate does. Similarly, on multi-point doors, lifting the handle alone does not make the door secure—the key must be turned and removed for the locking mechanism to fully engage.

Other frequent failures have nothing to do with the lock itself:

• Leaving keys near the door where they can be reached from outside, such as on a table visible through a window or in a lockbox with a guessable code
• Installing a quality deadbolt on a weak frame or with short screws that don’t bite into the wall studs, leaving the strike plate to tear out on impact
• Ignoring unreinforced glass adjacent to the lock area, which lets an intruder break the pane and reach through to unlock the door from inside

The door, frame, hinges, strike plate, and installation quality all matter as much as the lock itself. A deadbolt is only as strong as the frame it’s mounted in. Door locks for rental property that meet these standards are worth reviewing if you’re a landlord keeping multiple units secure.

When Locking Rules Have Exceptions

Two situations require care. That’s a bigger throw than some budget locks provide, so check local requirements before buying. Second, key-operated locks on main egress doors can be restricted under building and fire-code conditions when spaces are occupied. The lock must never block safe emergency exit. A deadbolt that requires a key from the inside while people are home is a genuine fire-safety hazard, and some codes limit that configuration in residential settings.

The balance is straightforward: secure when unoccupied, easy to exit when occupied. Thumb-turn deadbolts on the interior side solve this for most homes, allowing a quick exit without a key while still fully locking from the outside.