A lot of times, homeowners purposely will plant trees around their home for a specific purpose.  It might be shade, it might be a windbreak, or it might be for fruit or nuts they can harvest.  Trees, especially compared to other plants, are really low maintenance.  Making sure they get enough water is almost all the maintenance they need in some cases, although some trees need routine pruning to keep them producing at their peak.  But, unfortunately, too often homeowners just ignore the needs of their other trees, figuring they will take care of themselves.  Trees do need care and if you really want them to last for the years they are destined to live, the type of care is not complicated, but it does need to be done.  Typically, homeowners will hire a tree service in Rancho Cucamonga, CA to come do it because they do not have the skill or the machinery to do it correctly.