Is it Possible to Install New Hardware Knob/Lock Without Removing Existing Ones?

When considering the installation of new hardware knobs and locks on an existing door, many might assume that the old hardware needs to be removed for a clean installation. However, there are creative solutions that allow installation without removing the existing hardware. Let's explore some of these alternatives and the practical considerations involved.

Option 1: Lowering the New Knob and Elevating the New Deadbolt

One approach is to install the new knob lower on the door than the old knob and the new deadbolt higher on the door compared to the old one. This method might work for some settings but could lead to inconvenience.

For instance, you might need to turn both the old and new knobs simultaneously to open the door, which can be cumbersome. Additionally, you'll need to drill new holes in the doors to install the new locks, and you might need to install new strike plates in the jamb to accommodate these locks.

Another consideration is the aesthetic aspect. Such an arrangement might look rather odd and affect the overall appearance of the door.

Option 2: Removing and Replacing Existing Hardware

A simpler and potentially more aesthetically pleasing solution is to remove the old hardware and install the new ones in the existing holes. This approach can be much easier, especially if the new hardware fits the old lock holes.

This process involves carefully removing the existing hardware, preparing the existing lock holes, and reinstalling the new hardware. This method ensures that the new locks are flush with the rest of the door and creates a clean, uniform appearance.

Option 3: Modifying the Existing Lock Holes if Needed

If the new locks are too large to fit the old holes, you might need to cut lumber to match the size of the old holes and glue it into place to create new holes. This involves a more involved process, including measuring, cutting, and gluing, but it allows for the installation of new hardware.

As an example, a few years ago, the author replaced the lock on the left of their back door with a lock on the right. It was impossible for the new lock to fit the old hole, so they cut lumber to size and glued it into the old holes. They then drilled new holes to install the new lock.

The result was a solid wood appearance with no trace of the old mortise lock. This demonstrates the effectiveness of modifying the existing lock holes if necessary.

Conclusion

While there are viable options for installing new hardware without removing existing ones, each has its own set of challenges and considerations. Whether you choose to lower the new knob, elevate the new deadbolt, or modify existing lock holes, it's crucial to weigh the practicality and aesthetics of your chosen approach.

By carefully planning and following the steps outlined, you can ensure a smooth installation process that suits both your functional and aesthetic needs.

Keywords: hardware installation, door lock replacement, lock hole modification