Lock Repair in Naperville, IL

What wears Naperville locks out

Lock repair is for a lock worth keeping that no longer behaves: a key that drags, a latch that will not catch, a deadbolt that only throws when you push on the door. NOAA's Illinois climate summary puts average snowfall in northeastern Illinois above 40 inches and reports that 2-inch extreme precipitation events have run above average since 1990. Wet, cold weather works on a door in three ways.

• Icing and thawing. Water that works into a keyway or latch turns to ice overnight and thaws by day. Repeated all season, that grinds grit into the pins.
• Swelling and shifting. A wood door that swells after heavy rain, or a frame that shifts through the winter, pulls the bolt out of line with the strike. The deadbolt then has to be forced, and forcing wears it out.
• Ice melt. Salt spread on the stoop splashes onto low hardware and the bottom of the strike plate, and corrodes both.

Midcentury hardware in the East Highlands

Of the 453 East Highlands sites Naperville Preservation Inc surveyed, 223 are original structures, so some doors there may still carry midcentury hardware. A lock like that may need a part or a rebuilt cylinder rather than a new lock, and a photo of the brand stamped on the case or faceplate helps identify it. When a lock body is cracked or parts no longer exist, lock replacement is the fallback.

Upkeep before winter

1. Before the first hard frost, puff a little dry graphite or a lubricant made for lock cylinders into each keyway. Skip heavy oil, which gathers dirt.
2. On an iced-over morning, use lock de-icer and turn gently. A key twisted in an iced cylinder can snap, turning a repair into a broken key extraction.
3. If the deadbolt only throws when you lift or push the door, adjust the strike or hinges rather than forcing the bolt.

Describing the fault

Name the lock and door, describe what it does wrong and when it started (after a storm, or at the first cold snap), and attach a photo. The Naperville page has notes on the East Highlands and the historic district.