For this job, I was performing routine maintenance on the AC and furnace. All electrical components and pressure switches refrigerant levels and safety switches were operating well within manufactured specifications. However, the static pressure was very high at almost double what it should be. After checking the ductwork, it was clear that we were missing quite a bit of CFMon the supply side. I really wanted to do an arrow seal. on the supply side. I really wanted to do an arrow seal to increase airflow, lower energy costs and get air moving to the four bedrooms however we need to at least address this ductwork first before that’s possible. Because of this I called out a supervisor to look at the system further.