The Best Way to Soundproof & Seal Around a Door Jamb

Sound proofing any surface is always a tricky procedure and a door is especially demanding.

Door

Sound proofing a door jamb requires readily available materials.Sound proofing a door jamb requires readily available materials.
Opening and closing the door leads to loose insulation or sound barriers causing constant adjustment. Getting the door sound proofed involves working not only on the door but also the frame and door jamb. A good rule to remember is if light makes it through, sound is sure to follow. Use a bright light source to examine the work for any openings where sound can penetrate.

The doorjamb (where the latch meets the door frame) needs to be insulated from sound on the face of the door. Start by adding rubber weather stripping over the space between the door and frame. This will reduce (but not eliminate) any sound. Run the rubber stripping around the face of the door and across the bottom. Use a light source behind the door to check for light leaks.

The Jamb Plate

The jamb plate (a piece of metal used to reinforce the door frame where the latch holds the door closed) needs insulation to reduce the metal-on-metal contact sound. A quick and easy fix is add a few layers of duct or masking tape to the plate. Be sure, though, not to make it so thick it hinders the latch's operation. Another more permanent solution involves Plasti-dip liquid rubber. Plasti-dip is sold in home supply stores for adding rubber handles to metal tools. Use a small paintbrush to apply several coats of the liquid to the metal plate and allow each coat to dry thoroughly. Now the door latch will make contact with the tape or rubber and won't make a sound.

Door Frame

Add weather stripping inside the door to act as a seal not only against air but also sound. Be sure to take care getting the seal tight in the corners. If possible, close the door and use a bright light to look for leaks. When applying the seal take extra care in these areas. Again, consider using tape to build up areas of the door frame before applying the weather stripping. This will increase the thickness of the stripping and make a tighter seal.

Door Knob

Unfortunately, when turning the door knob mechanism there is very little sound proofing options. The best thing to do is make sure that the mechanism is well lubed with dry graphite and produces as little sound as possible. Although comparatively expensive, there are doorknob mechanisms made of nylon and other hard plastics. These are not as durable as metal but much quieter. Look for them from a music studio or laboratory supply company.

About the Author

Wesley Tucker is a lifelong southerner whose politics are objective, whose sports are many and whose avocations range from aviation to anthropology to history and all forms of media. With a master's degree in mass communications from the University of South Carolina College of Journalism, Tucker has been a writer for more than 30 years, with work ranging from news reports to feature stories.