Lock Replacement in Darby, PA

Mismatched locks on every door can leave you sorting through a handful of keys and wondering which one belongs where.

In Darby, we replace house door locks and cylinders, and we can match compatible hardware to one key. If your existing hardware still works well and you only want different keys, rekeying may be enough: it changes which key operates it. Worn or damaged parts are a reason to consider replacement, as is a preference for a different finish or stronger protection.

A knob or lever gives you a way to operate the latch, while a deadbolt provides a separate locking point. A handle set combines a grip with locking hardware for an entry door, though configurations vary. A replacement needs to fit the door's thickness and existing openings. Some choices fit those openings, while others require changes to the door. We explain the fit and keying options so you can choose hardware that suits your doors in Darby.

At your new home, we look at the existing locks and doors first.

If you do not know who has keys, rekeying changes which keys work while keeping the existing hardware. Replacement gives you new hardware and may be the better choice if a lock is worn or damaged, or if you want a different look. We check the door's thickness, existing holes and how the latch lines up, then explain what will fit and whether a different choice would require changes to the door.

Before any work begins, we explain your options for knobs, levers, deadbolts and handle sets, including the style and finish you prefer. If you want one key for several doors, we check whether your choices can be keyed alike. Some combinations may require replacing more than one piece. Once the new hardware is installed, we check it with you, using the key and the inside turn and making sure the door closes and latches properly. You can try it yourself and see how each door operates.

In a new home, you may not know who had copies of the old keys.

Keep track of which exterior entrances received replacement locks, and check any that still use older hardware. A new key for one entrance does not change access at an entrance with an unchanged lock. Store a spare somewhere secure rather than under a mat or planter, and give copies only to people you trust.

Keep the new hardware clean with a soft, damp cloth, and avoid household oil or cleaners that could leave residue inside. If you use a lubricant, choose one intended for locks and follow its label. With the door open, check that the deadbolt moves smoothly and fully extends. If it catches only with the door closed, or turning becomes difficult, call us to check the fit and operation. Do not force it, since that may damage the mechanism or leave you unable to secure the entrance.