Residential

Deadbolt Installation in St. Augustine, FL

A quality deadbolt is one of the most cost-effective security upgrades for any door. Knob and lever locks alone are easy to defeat, but a properly installed deadbolt makes forced entry significantly harder. Ancient City Locksmith installs and upgrades deadbolts on homes and businesses across St. Augustine and Northeast Florida.

Why a Deadbolt Matters

A knob or lever lock has a spring-loaded latch that can often be slipped or forced. A deadbolt throws a solid metal bolt deep into the door frame that can't be pushed back without turning the lock. On any exterior door, a deadbolt is the difference between a token lock and real resistance to forced entry — which is why so many entry doors should have one.

Adding a Deadbolt Where There Isn't One

If your door only has a knob or lever, adding a deadbolt is a straightforward, high-value upgrade. We bore the door correctly, fit a quality deadbolt, and install a solid strike plate — the strike and its screws matter as much as the lock, since long screws into the frame greatly improve resistance. We can key the new deadbolt to match your existing keys where compatible.

Single vs Double Cylinder

A single-cylinder deadbolt uses a key outside and a thumbturn inside. A double-cylinder deadbolt needs a key on both sides, which can help where there's glass near the lock but has safety trade-offs for quick exit in an emergency. We'll explain the considerations so you choose what's right for your door and household.

Proper Installation Is Everything

A deadbolt only protects you if it's installed correctly. The bolt must extend fully into a well-aligned strike, the strike must be anchored to the frame with adequate screws, and the boring must be correct. A deadbolt that only half-engages because of misalignment offers a false sense of security. We take the time to fit it properly.

Upgrading Existing Deadbolts

If you have an old, worn or low-grade deadbolt, upgrading to quality hardware — and for coastal homes, a corrosion-resistant finish — is a smart move. We can also rekey a new deadbolt to match your other locks.