Stumps are the part of clearing work that most homeowners underthink. The tree comes down, the brush gets chipped, the lot looks open, and then there's this knee-high reminder sticking out of the ground that nobody quite knows what to do with. Sometimes pulling it is essential. Sometimes it's a waste of money. The trick is knowing which side of that line your project sits on.
There are two practical ways to deal with a stump, and they aren't interchangeable.
Grinding uses a rotating cutter wheel to chew the stump down to six to twelve inches below grade. The roots stay where they are. You're left with a hole full of wood chips, which gets backfilled with the chips themselves or with soil. It's relatively quick, less invasive to the surrounding lawn, and cheaper.
Excavation uses a machine, usually an excavator or a skid steer with a stump bucket, to pull the entire stump and root mass out of the ground. You end up with a real hole and a pile of dirt-tangled roots that has to be hauled or burned. It's slower, costs more, and tears up the area around it. But the wood is gone, not just hidden.
If the area will be lawn, garden, or just decorative space, grinding is usually plenty. A few situations where grinding works well:
Around Hixson and East Ridge we grind a lot of stumps for homeowners who already have a finished landscape and don't want their yard torn up.
Grinding becomes a problem the moment anything structural goes on top. Buried wood rots. Rotting wood creates voids. Voids create settling. Settling cracks slabs, breaks driveways, and warps pads.
Excavate the full stump when:
On the rocky, clay-heavy ground around Lookout Mountain and parts of Signal Mountain, organic voids are especially bad news because water finds them and pools. Add freeze-thaw cycles and you have a slow-motion settling problem.
There are real cases where the right answer is leave it alone:
On hunting and recreational tracts, especially big parcels in Catoosa or Walker County, we routinely leave stumps in place because they're not in the way of anything and pulling them costs money without benefit. Wildlife uses them. The ground stays stable. Nobody loses sleep over it.
For a full excavation, expect:
A stump from a healthy 24-inch hardwood is roughly the size of a small car once it's out of the ground. That's a useful mental picture when planning where to stage debris.
Pricing varies with size, species, soil, access, and disposal. A few honest variables:
If you're combining stump removal with broader land clearing, the per-stump cost almost always drops because the machine is already on site.
A single mid-size stump excavation usually runs under an hour once the machine is on site. Grinding is similar. Larger oaks or hickories in tight spots can take longer.
Excavation will. Grinding leaves a smaller footprint but still disturbs the immediate area. Plan to re-seed or sod around the spot.
Stump burning is slow, hard to do well, and restricted in many parts of the Chattanooga area. It's almost never a good substitute for mechanical removal.
Most of a tree's root mass sits in the top 18 to 24 inches, spreading wider than the canopy. Tap roots are less common than people think.