Soundproofing a home office provides a way to stop noises from entering the room and disrupting your work. Aside from rebuilding existing walls with soundproofing materials, a way to reduce and eliminate the level of noise in the room is by sealing all areas where noise may enter.tep 5: Soundproof Flooring. To reduce the sound that is coming from below your home office, gently pull up the carpeting and place sound acoustic boards underneath to reduce sound vibrations that cause noise.