Air not blowing very strong and not keeping set temperature, felt by hand downstairs and upstairs not blowing very hard out of the registers. I called the company I have used they could not make it out. Called Air-Flow comfort systems and Omar came out. He said the upstairs damper was stuck closed and damper actuator was bad so he replaced it and left. I rechecked the airflow upstairs and downstairs and same issue air blowing the same air volume as before the actuator was changed. I then called the company I normally use and they came out to find a bad blower motor. Once replaced the air flow was way better upstairs and downstairs. I do not recommend airflow comfort systems as they did not fix the issue. Felt like they wanted to replace a part collect payment and leave without doing a full inspection and diagnosing the actual issue. He called me later that day I was troubleshooting while on the phone. He said let’s talk about it next week as I’m out of town. If he couldn’t fix it right the first time why would I have him back out. So I called a competent company out to invest time in figuring out the actual issue. He said the damper was stuck shut. If the damper was stuck shut I would have not felt airflow out of the registers. The airflow was the same before and after he left, very low output. Horrible experience!!!