Deadbolt Installation in Cheltenham, PA

A door to a garage or basement may have only a knob lock, leaving you with no separate deadbolt to secure it.

In Cheltenham, we install one on your entry door and position the strike so the bolt extends fully into the frame when you lock it. That fit matters: if the bolt stops short, less of it holds the entry closed. We check the alignment and adjust the strike placement so the mechanism can travel its full range without forcing the key or interior turn.

You have two common choices. A single cylinder design has an interior thumb turn and takes a key on the outside. With a double cylinder, you use a key on either side. That means there is no interior turn to reach through glass beside the entry, but you also need a key to unlock it from inside. For your Cheltenham home, we can check whether the new lock can be keyed to match your existing locks. The answer depends on whether they use compatible keys.

When we visit, we first look at the entry door, its thickness and material, and the space in the frame where the bolt will land.

A glass panel near the lock matters because someone might reach through broken glass to operate an interior turn. Before starting, we explain the choices: a single cylinder has an exterior key and an interior thumb turn, while a double cylinder uses a key on each side. The second option limits access through the opening, but you also need the key to get out.

We also check whether the new deadbolt can be keyed to match your other locks. The existing hardware must be compatible with the new hardware; otherwise, you may need separate keys or changes to the other locks. Once you choose, we install the hardware and position the strike for a full throw. Together, we operate the deadbolt with the door open and closed, checking that it moves smoothly and extends fully into the frame.

After adding a deadbolt to a front door that had only a knob lock, get used to checking that the bolt reaches its full locked position.

Try it with the door open first, then close it and turn it again. It should move smoothly in both positions. If it stops short or needs a hard push or pull to turn, do not force it or rely on it to secure the entry. The opening in the frame may no longer line up.

Keep your key accessible before testing, especially if the inside also requires one. Follow the manufacturer's care instructions for cleaning and lubrication, and keep paint away from the moving parts. Watch for sticking when you turn it or new resistance when you close the door. If those problems persist, call us to check the fit and operation. A change in alignment can keep the bolt from extending fully even when the knob lock still works.