We arrived at our clients home for air balance concern for the upstairs unit specifically. Our client expressed that two of the upstairs bedrooms were not getting enough air/heat and large living room Space/ loft area was getting too hot. We first confirmed the manual dampers on each duct run from the supply plenum box. Our client agreed to have us preform a thorough air balance for the upstairs today. We placed the unit in test mode with 100% air moving from the blower and We began to measure and check the air from each individual vent once data was collected we made and checked adjustments accordingly until the air flow was better distributed to our client desired areas. We explained the changes made to our client and he was happy with results. As a courtesy we also made a small adjustment to his wife’s office area and reduced airflow to it.