It’s really important to have a clean and well maintained HVAC unit, but once every year you should have the system maintained by a repair professional that is trained and skilled in heating and A/C, but having the HVAC component cleaned and maintained can absolutely help add to the benefits of having an indoor system! I recently contacted an experienced repair supplier because I was in need of HVAC maintenance. I started hearing an odd sound coming from the system. I read online that an odd sound can be a sign that there is a problem with the system. I contacted a supplier that listed their A/C maintenance services online! Services included things like cleaning the coils, replacing the air filter, and checking the levels of the refrigerant. The supplier also gave me free indoor air quality testing. The indoor air quality in my home was less than ideal and the professional recommended that it might be time to think about cleaning and sanitizing the ductwork or having a whole-home air purifier installed. The guy did not give me a high pressure sales pitch. I could tell that he was just giving me his opinion. He wrote down all of the information on a piece of paper when he was finished with the maintenance repair and told me to give them a call when I was ready to make some swings. Having the information at my hands is really helpful in this situation, because now I can think ahead and plan for the events. I might be able to open a time when the new equipment is on sale and save even more.