To help you I need to ask a few questions:
1. Do you have a good contract?
2. Does the contract state in writing start time?
3. Do you think you have paid money to the contractor more than the work co ... read more
Condensation from the differential temperature is of course on answer. The other and more concerning is the furnace or force air unit (FAU). I would recommend contacting a licenced heating contracto ... read more