An air conditioning system or heating system is a big investment, and you want to make sure that yours is around for a long time to come. Most manufacturers can provide you with an estimated lifespan, but how long a system lasts depends largely on the level of care that is put into it. As soon as you get a new unit, get on a maintenance plan to keep it in the best shape possible, and make sure to schedule repairs whenever you notice trouble. This can help to extend the lifespan of your unit, as long as you only use professional service technicians, like the people at DB Heating & Cooling, Inc.