Problems found in In-Slab HVAC ductwork can happen often. If you have this type of ductwork, here are some issues to be mindful of.

Air flow rates of heating or cooling air delivered by in-slab ductwork can become substantially reduced and ultimately blocked complete by:

  • Rodents or other animals that may invade the ductwork, nesting or even dying
  • Crushed or collapsed ducts in the slab
  • Debris loaded in-slab ductwork
  • Water standing or flooded in-slab ductwork which can lead to mold
  • Rust
  • Sand

Water can accumulate in in-slab air ducts from:

  • Condensation during the cooling season
  • Leaks into the duct system from groundwater
  • leaks into the duct system from nearby plumbing drain defects
  • actual area flooding of the home: an example from a burst plumbing line or refrigerator ice maker line