Avoid in Miami Shores
- Garage-mounted air handler with a leaky return — it's pulling from the garage and you're breathing it.
- Letting renovation contractors drywall over an old register — happens more than you'd think.
- Skipping a leak test on older galvanized ductwork — old screw seals fail invisibly.
- Aggressive brush cleaning on fragile original duct — proper crews use softer brush heads on older systems.









