Deadbolt Installation in Concord, PA

Your back door may feel weak if the knob lock is the only thing securing it.

In Concord, we install a deadbolt on an entry door to give you a separate way to lock it. The knob still works as it did, while the new lock adds a bolt that extends into the frame. We set the strike in the frame to line up with the bolt, giving it room to extend fully rather than stopping partway.

A single cylinder model uses an outside key and an inside thumbturn. A double cylinder requires a key on both sides, which can make it harder to unlock through broken glass but also means you need that key to get out. Your door and your household's needs matter when choosing between them. If you want to use the same key for other locks at your Concord home, we can check whether the new hardware is compatible and set it to match where possible.

We begin by looking at your entry door, the nearby glass, and the space in the frame where a deadbolt would engage.

If the glass is within reach of the inside hardware, we explain what that means for your choice. A single cylinder has a keyed exterior and an interior turn, which is easy to operate from inside but may be reachable through broken glass. A double cylinder requires a key on both sides, limiting access through the glass but making the key necessary to leave through that entrance. We explain those differences before any work starts.

We also check whether your existing keys can work with the new lock. Keying them alike requires compatible hardware, so we explain the available choices before installation. Once the hardware is fitted, we check the strike placement and show you how the bolt extends fully into the frame with the door closed. You can try the key and interior operation with us and see that everything moves smoothly without forcing it.

A back door can still feel weak after a deadbolt is installed if the door shifts or the frame has worn areas.

With the door open, turn the key or thumbturn to see how far the bolt extends. Close the door and check that it turns just as far into the frame. If it stops short, sticks, or needs a hard push on the door, do not force it.

Keep the key clean, and use only a lock lubricant recommended by the manufacturer. Look for loose strike screws or cracks in the surrounding wood, especially if the door rattles when locked. A screw that will not tighten may need more than another turn. If the lock binds or the door still feels weak, it is worth calling us to check the fit and explain what may need attention.