Absolutely. According to a major manufacturer of heating and cooling systems, Lennox, proper maintenance can help your unit last for years longer. On the flip side, a neglected system loses roughly 5% of its efficiency each year that it operates without upkeep. So that “green” machine that you bought to stay cool (or warm) could start to function like the most inefficient thing on the market, if you fail to perform regular maintenance. Proper maintenance will increase the longevity of your system, ensure your family is comfortable, decrease the chances of breakdowns, and maintain the safe operation of your system.