Why the stump is its own job
When a tree comes down, the quote usually covers cutting it up and hauling it, and the stump left in the ground is a separate line, because grinding it out takes a different machine and more time. That is not a crew nickel-and-diming you; it is genuinely a second job. Worth knowing up front so you can decide whether to grind it now while the crew and the equipment are already there, which is usually the cheaper way to do it.
What grinding actually does
A stump grinder chews the stump and the top of the root flare down into mulch below ground level, so you can fill it with soil and plant grass or put something back in the spot. It does not pull every root out of the earth, which is not necessary; it takes the stump low enough that it is gone from view and will not resprout. You get your ground back and the tripping hazard and the eyesore go with it.
Why not to just leave it
A stump left in the yard does not just sit there quietly. Many species send up sprouts from the stump and the roots, so you fight a thicket of shoots for years. It slowly rots, which draws termites and other pests closer to the house than you want them, and it stays a mower hazard and an eyesore the whole time. Grinding it out once is cheaper than fighting it forever.
- Stump removal is usually quoted separately from the tree
- Grinding turns the stump into mulch below grade
- Left alone, a stump sprouts, rots, and draws pests

