Keeping your HVAC system in good shape isn’t something most homeowners think about until something goes wrong. But in a city like Baltimore—where summers are hot and humid and winters can be cold and unpredictable—your heating and cooling system works hard all year. That’s why seasonal HVAC maintenance is so important. A simple routine check every few months can improve efficiency, lower energy bills, and help you avoid expensive emergency repairs later on. Below is a practic