ductwork repair 2

https://coolingsystemrepaircraft.dovetailscope.com/posts/when-to-call-for-cooling-system-repair-signs-your-ac-needs-attention

When your ductwork springs a leak or gets crushed, your HVAC system works overtime. I had to patch a section in my crawlspace where the flexible duct had torn, which was wasting cooled air into the dirt. Proper sealing with mastic tape and reinforcing the connections stopped the whistling noise and dropped my energy bill. It's not glamorous, but fixing those gaps makes a huge difference in comfort.