Lock Repair in Trenton, NJ

What wears on a Trenton door lock

NOAA's state climate summary describes New Jersey winters as moderately cold with occasional snow, and summers as warm and humid. Each season works on a lock in its own way:

• Snowmelt. Water that runs into an exterior cylinder can turn to ice overnight. A dry lock lubricant belongs in the keyway, not oil, and a stiff key should never be forced.
• Humid summers. Wood doors swell. If you must push or lift the door to throw the deadbolt, the bolt is dragging on the strike, and the strike can be adjusted.
• Sagging. A door that moves with the seasons can work its hinge screws loose until the latch starts missing its hole.

Older hardware worth repairing

Greenwood/Hamilton is one of the districts where the Trenton Historical Society notes colonial-era Federal-style buildings, and the city's historic districts also hold Italianate and Victorian buildings. The original lock on a door like that can often be cleaned, given a new spring or fitted with a fresh cylinder. Lock repair of that kind leaves the hardware visible from the street as it is. Replacement is a different matter: the City Landmarks Commission is involved whenever the exterior of a building in a designated district is altered, and new street-side hardware may count as an alteration. This is general information, not legal advice.

Upkeep between visits

1. In the fall, apply a dry lock lubricant to each exterior cylinder.
2. Tighten loose knob, lever and hinge screws twice a year.
3. Clear ice and packed snow from the threshold so the door closes fully and the latch can seat.
4. Have a sticking key checked early, before a piece breaks off and becomes a broken key extraction.

Describing the problem

Say what the lock does and when: only on cold mornings, only in summer, or every time. Add a photo of the lock face and one of the door edge with the latch or bolt extended, and mention if the address is in a historic district.