Often, finding the source of your HVAC problem can be half the battle. Even for professionals, it can be difficult to find exactly where the problem originates from.
Find a Regular HVAC Tech
This is particularly true if the technicians are not familiar with your system. Since every building is a little different, it ends up being beneficial if you have a trusted HVAC tech who knows the intricacies of your system. They will be able to identify and fix problems more easily. There could be several things that are causing your air conditioner to have weaker airflow. Also, there could be a number of different reasons that your heater isn't creating hot air.
Duct Problems or Appliance Issues?
Airflow issues can be particularly tricky because they are often connected with the duct system. So, if your duct system needs to be inspected, it can take quite a while, and there is even a possibility that there is a problem with the ducts that are inside your walls. If you need to access and repair these air ducts, it is going to be a big project because it is so hard to reach them. So, the first thing you should do is try and figure out where the problem is coming from, and then you can call a professional.
If you notice weak airflow in just some of the rooms in your house, this probably means that there is an issue with the duct system. If the airflow is equally weak throughout your entire house, it probably has more to do with the air handler or fan. That is, these appliances probably aren't producing the right amount of airflow to begin with.
There is also a risk that the air ducts are disconnected near the air handler. The best course of action is to examine your air ducts, and pay attention to airflow over the course of a few days. Even though professionals are trained, they won't have the experience or personal knowledge of your HVAC system.
If there ever is a problem with the duct system, 9 out of 10 times it is going to be where the ducts are exposed and visible. If you can see or touch the ducts, there is a much better chance that they are damaged or lose.
Ultimately, you will need to resort to professional HVAC technicians to fix your problems. But, you need to make sure that you pay attention to how your system is acting, so that you can get a more precise diagnosis from the heating and air pros.