Serving Alexandria, Arlington & Fairfax
Sun–Fri 8am–11pm · Sat 6pm–11pm
Secure your entry points against forced entry. Navy Locksmith provides professional deadbolt installation, high-security lock replacements, and frame reinforcing services to protect your household.
A standard spring latch lock on your entry door offers minimal resistance against physical force. Installing a solid brass or steel deadbolt creates a robust barrier that locks deep into your door jamb, significantly increasing physical resistance and detering intrusion attempts.
Property crimes are often crimes of opportunity. Standard door latches and improperly installed strike plates are the primary vulnerabilities exploited during residential break-ins.
Solid Resistance
A deadbolt is only as strong as its installation. If a deadbolt bore is cut off-center, or if the strike pocket in the door frame is too shallow, the locking bolt cannot throw fully. A partially thrown deadbolt does not engage its internal security pin, allowing it to be pushed back mechanically.
We ensure that the deadbolt cylinder fits snugly within the door structure, the strike plate is aligned with precision, and the frame is anchored deep into the structural wall studs.
Deadbolts differ in lock cylinder configurations and metal structural ratings. Selecting the correct deadbolt depends on door styles, window placement, and your target security level.
The American National Standards Institute (ANSI) rates deadbolts from Grade 1 (highest) to Grade 3. Grade 1 locks are typically reserved for commercial facilities or high-security homes, offering resistance to hammer blows, prying, and kick-ins. Grade 2 is the standard for high-quality residential security.
This is the most common residential configuration. It features a keyway on the exterior and a turnpiece (thumbturn) on the interior. This layout allows for Efficient exit during emergencies, though it should not be placed within arm’s reach of a window glass pane that could be shattered to unlock it from the inside.
Double-cylinder deadbolts require a key for operation on both the exterior and interior sides. This configuration is recommended for doors featuring glass inserts or adjacent sidelight windows. Because exit requires a key, fire safety codes in some areas regulate where they can be installed.
If your existing hardware is failing or you require lock changes during a home transition, you can view our detailed guide on lock replacement services in Alexandria to see how we manage complete hardware replacements.
A deadbolt is useless if the door itself or the wooden frame collapses under impact. Many standard exterior door frames consist of soft pine wood that splinters easily when subjected to kicking or prying forces.
During a professional installation, we reinforce the entry point by installing heavy-duty steel strike plates secured with 3-inch or 4-inch hardened steel screws. These long screws reach past the decorative wooden jamb and anchor directly into the thick structural wall studs behind the frame.
We check door thickness and material compatibility (solid wood, steel-clad, or fiberglass doors) to select matching cylinder backsets and drill sizes. If you want to assess your current doors or have locks that require adjustments, you can review our guidelines on lock repair services in Alexandria.
Core Reinforcement
A standard deadbolt installation uses short screws that anchor the strike plate into the soft wood door trim. Under force, the trim breaks away, causing lock failure.
A reinforced deadbolt installation introduces three crucial layers of protection:
Security Assessment
When moving into a new home or dealing with lost keys, you do not always need to purchase entirely new deadbolt assemblies.
If the lock housing is in good physical condition and matches your home style, a locksmith can rekey the lock. This involves swapping out the internal pins inside the cylinder to match a new key pattern, rendering all old keys useless. For detailed comparisons, check out our guide on rekeying vs replacing locks in Alexandria.
If your current deadbolt suffers from mechanical wear, has been weathered over years of exposure, or is an older model lacking modern security features, upgrading is the safest choice. Newer deadbolt cylinders incorporate security design elements like mushroom pins, spool pins, and hardened steel plates to resist pick-locking, bumping, and drilling.
If you decide to rekey your doors instead of replacing the entire lock assembly, you can read more about the process on our lock rekeying services in Alexandria page.
Additionally, many homeowners choose to combine mechanical deadbolts with modern access systems. You can read about keyless lock styles on our page covering smart lock and keypad lock services in Alexandria.
We follow a precise installation workflow to guarantee that your new deadbolts operate smoothly and provide maximum physical security.
We inspect the door material, measure thickness, and evaluate the integrity of the frame. We determine the correct backset (either 2-3/8 or 2-3/4 inches) to ensure the lock aligns correctly on the door style.
Using a specialized lock-boring jig, we cut a clean cylinder hole through the door and a matching latch hole through the door edge. This ensures straight alignment, preventing cylinder binding.
We mortise (recess) the edge of the door so the deadbolt faceplate sits flush against the surface. A flush faceplate prevents the door from rubbing or catching against the frame when closing.
We drill the strike hole in the frame and mortise a recess for the security strike plate. We then mount the plate using 3-inch structural screws that anchor into the wall studs behind the frame.
We mount the deadbolt cylinder, connect the tailpiece, and screw the assembly together. We test the bolt operation with the door open and closed, verifying the deadbolt extends and retracts without resistance.
Proper care keeps your locks operating reliably and prevents unexpected wear. Here are key maintenance practices for homeowners:
If your deadbolt fails or you are locked out of your home, attempting to force the lock with plastic cards, hairpins, or drills can ruin the door slab or frame.
Locksmiths utilize specialized non-destructive picking tools to bypass lock cylinders safely. If you experience a lockout situation, you can read our advice on what to do during a lockout in Alexandria to learn about response steps.
Common questions regarding deadbolt types, security ratings, and installation procedures.
ANSI Grade 1 deadbolts offer the highest level of security, tested to withstand 10 kick-in blows and 1 million cycles. Grade 2 is the residential standard, providing strong protection for homes (tested for 5 blows and 800,000 cycles). Grade 3 deadbolts are light-duty, commonly used for interior doors or budget residential builds.
Double-cylinder deadbolts require a key to open from the inside. During a house fire or emergency, occupant exit can be delayed if the key is not in the lock or easily found nearby. For this reason, some local building codes restrict or ban double-cylinder deadbolts on primary emergency exit doors.
Yes. This is called a fresh installation. We use specialized jigs to cut the cylinder bore, latch hole, and recess pocket in both the door and the frame. This ensures correct positioning and alignment for new hardware on solid wood, fiberglass, or metal entry doors.
A strike plate is the metal piece screwed to the door frame where the deadbolt extends. When short screws are used, a kick-in attempt easily splinters the wood. Using 3-inch or 4-inch screws anchors the strike plate deep into the structural wood framing of the house, distributing the force and preventing the frame from breaking.
Stiffness is usually caused by frame misalignment, shifting foundation wood, or internal grime. If the lock operates smoothly when the door is open but binds when closed, the issue lies in the alignment of the door latch or strike plate pocket, rather than the cylinder itself.
Yes. We provide installation services for customer-purchased hardware. We verify door thickness and compatibility before cutting bores. We can also provide heavy-duty deadbolts directly from our stocked inventory to ensure you receive rated security hardware.
Secure your residential properties today. Contact us for deadbolt installations, entry door reinforcements, and high-security cylinder replacements.
