Interior duct - how to repair holes / tears without replacing

[theredone]

I have ceiling installed ductwork for my residential HVAC system (both A/C and forced air heat). Last summer I noticed the paint on the ceiling bubbling up in a few spots (clearly a moisture problem) - after ruling out other possible causes I determined that the A/C ductwork was sweating inside the ceiling and dripping.

An A/C guy told me that it's common for mice, etc. to chew into ductwork and since I had a sticker on my air exchanger from "Miami Mice" (like Miami Vice) saying they treated the house some years before I bought it, I figured I might have perferated ductwork.

As I'm sure this is not optimal, I'd like to have the ductwork repaired - although, I don't want to have to ripe the ceilings apart to do it.

Does anyone know of a way I can insert a liner into the existing ductwork to stop the leaking? Or any other solution options?

I found a company that repairs holes in ductwork by spraying a sealant into the ducts but there isn't a rep. within 300 miles. http://www.aeroseal.com/index.html

The Red One

[pushkins]

First of all do you know if your duct work is the insulated flexible type or galvanized, if it's the latter type then a mouse did not chew through it.
Many times condensation occurs on the outside of ducting as the temperature on the outside of the duct is significantly different than the inside of the duct. My HVAC guys always make sure any duct work running anywhere in ceilings gets wrapped in insulation before the ceiling is installed, this most times circumvents this condensation problem in the future.

Unfortunately I don't think there is an easy fix in your situation, first you need to ascertain what kind of ducting is running through your ceiling where the "bubbling" is, Sometimes the fix could be as easy as removing a small section of ceiling and applying duct sealing tape to a join in the galvanized ducts or the same if it's a flex duct with a "miami mice" hole.