Lock installation and replacement

A technician removes the existing hardware when needed, checks the door and frame, and fits the new lock so the bolt aligns with the strike plate.

Lock Specialists is a family-owned company serving Simi Valley since 1973. Technicians hold a California locksmith license and pass a Live Scan background check.

• The lock is cracked, bent, or missing parts.
• The bolt does not line up with the strike plate.
• The key turns loosely, or the cylinder feels gritty after cleaning.
• The lock rattles when the door closes.

• Old hardware that no longer fits the door.
• Worn cylinders that let the bolt drift.
• Doors with a new frame or a different thickness.
• A wish for stronger hardware after a move.

The technician checks the door, frame, strike plate, and bore holes to confirm the new lock will fit.

The technician measures the backset and door thickness, then protects the door finish during drilling or cutting.

The technician removes the old hardware, fits the new lock, and adjusts the strike plate for a clean latch.

The technician operates the bolt, latch, and key several times before leaving the door.

A deadbolt adds a bolt that extends into the frame, separate from the knob or lever. Double-cylinder models need a key on both sides, which matters for doors with glass nearby.

A mortise lock sits in a pocket cut into the door edge. It is sturdier than a surface lock, but the door must suit the pocket size and the cut is permanent.

Knob and lever locksets combine a latch with a handle. Levers are easier for people with limited hand strength to operate, and many fit the same bore holes as knob sets.

A cylinder replacement swaps only the keyed part of the lock. It suits a lock whose hardware is sound but whose key or pins have worn out. Replacement cylinders usually need new keys, so plan to match or rekey your key set.

Deadbolts: single-cylinder and double-cylinder models.

Knob locks: entry knobs and passage knobs.

Lever handle locks: standard lever sets.

Mortise locks: pocket locksets for suitable doors.

Lock cylinders: rim, mortise, and profile cylinders.

The lock suits the door, frame, and bore holes.

The bolt and latch line up with the strike plate.

New hardware replaces worn parts you cannot see.

The technician checks the lock before leaving.

• The lockset is sound and only one part is worn.
• The door and frame are in good shape.
• Adjusting the strike plate or cleaning the cylinder restores normal operation.

• The cylinder or latch is cracked, bent, or badly worn.
• The lock no longer fits the door, frame, or bore holes.
• Repair parts are unavailable, or repair costs approach the price of a new lock.

A cylinder swap usually costs less than a mortise installation, which involves cutting the door. Lock Specialists gives an upfront quote before beginning any work.

A cylinder swap takes less time than a mortise installation that needs a new pocket cut into the door. Your technician confirms the timing when you book.

Expect some dust or small marks from drilling. The technician protects nearby finishes where possible.

Service areas: Simi Valley, Moorpark, Thousand Oaks, Chatsworth, and Porter Ranch.