If you find yourself having to call for professional air conditioning repair in Gaithersburg on a regular basis, it’s possible that it’s time to replace your unit altogether. There are a number of factors that should affect your decision. For instance, age makes a difference: If your air conditioning unit is more than a decade old, you may be better off replacing it with a newer model. High energy bills also indicate that there may be an ongoing problem with your unit. A newer air conditioning unit is likely to be more energy-efficient than an older one, which means that replacing your current unit may help you rein in your energy expenses. If your unit is frequently developing leaks, it’s a strong sign that you need to replace it. However, if your unit is relatively young and your energy bills are reasonable, it’s likely that you don’t need to replace it.