
Deadbolt Installation for Exterior and Interior Doors — What We Actually Do
Most homeowners and business owners in Whippany contact us wanting one of a handful of setups: a standard single-cylinder deadbolt for a solid wood or fiberglass entry door, a double-cylinder deadbolt for a door with glass sidelites or a window insert, a jimmy proof deadbolt installation for an apartment or in-swinging door where a surface-mounted rim lock is more secure than a traditional bored cylinder, or a full mortise lock replacement for older steel or wood doors that have a routed pocket already cut into the edge. Each of these is a genuinely different job requiring different tools, different door prep, and different hardware. We carry the most common grades of Schlage, Kwikset, and comparable ANSI Grade 1 hardware on our service vehicle so we can complete most installations in a single visit.
Interior deadbolt installation gets less attention than exterior work, but it matters — think bedroom safety for families with children, home office security, or a secondary deadbolt on a basement access door. We size the lock to the door thickness, verify the strike plate backing is solid enough to be worth installing against, and use longer screws into the stud or solid frame whenever possible. That last detail is one of the most overlooked steps in any deadbolt installation, and it dramatically increases kick-resistance without changing how the lock looks or feels.

