Attempting to repair certain appliances can actually void your home warranty, but regular maintenance won’t. With or without a home warranty there are definitely actions you can take now to keep the appliances you do have running longer.
Been here so many times, I lost count. It's about a third up from the desert to the mountains, in the Pheonix, AZ area. It is a small old copper mining town. they reduced the need for copper almost two decades ago. The town barely hangs on.