Yes, proper duct repair eliminates most HVAC noise issues. Those rattling, whistling, and whooshing sounds usually come from air escaping through leaks or loose connections that create turbulence. When we seal leaks and secure all connections, we eliminate the sources of these annoying sounds. Your system runs quieter, especially during startup and shutdown when noise is most noticeable. Better airflow from sealed ducts also means your system doesn’t strain to maintain temperatures, which naturally reduces operational noise. Most customers notice the difference immediately—their homes feel more peaceful.