When Should You Replace a Deadbolt?

A deadbolt is the workhorse of your door's security, so it's worth knowing when yours has reached the end of its useful life. Some signs are obvious; others are easy to ignore until you're locked out. Here's how to tell when it's time.

Signs Your Deadbolt Is Wearing Out

Watch for these:

• The bolt is hard to throw or retract, or needs jiggling to work.
• The key is getting harder to turn over time.
• The bolt doesn't extend fully into the strike.
• Visible corrosion, rust or damage — common on coastal exterior doors.
• The lock feels loose or wobbly in the door.

Repair, Adjust, or Replace?

Not every troubled deadbolt needs replacing. Sometimes the lock is fine and the door has simply shifted so the bolt no longer lines up with the strike — an adjustment fixes that. But if the deadbolt itself is worn internally, corroded, or damaged, replacement is the right call. We check which it is before recommending anything.

Security Reasons to Replace

Wear isn't the only reason. Consider replacing a deadbolt if it's a low-grade lock on an exterior door, if it was drilled or forced during a lockout or break-in, or if you want stronger protection. Upgrading to a quality deadbolt — with a solid strike plate anchored by long screws — meaningfully improves how well your door resists forced entry.

Consider an Upgrade While You're At It

If you're replacing anyway, it's a natural moment to think about a higher-quality deadbolt, a keypad lock for code entry, or a smart deadbolt. And if you have several doors, we can key the new hardware alike so one key handles them all.

Coastal Homes Need Closer Attention

Near the water in St. Augustine, salt air and humidity wear deadbolts faster than inland. Exterior deadbolts on coastal homes are worth checking periodically, and when it's time to replace, choosing corrosion-resistant hardware pays off in longer life.