Maintenance is crucial for these systems because they can break down without proper maintenance. Your HVAC not only keeps you comfortable but also helps keep you alive. You can die from extreme heat or cold, which means being able to keep your property at a suitable temperature is integral. That is the purpose of your HVAC system. You don't want your HVAC unit to be out of service when the temperature is too high or cold. So, you should ensure your system is consistently maintained with professional services.