A stump grinder is a wheel of carbide teeth that chews the stump into mulch a few inches at a time. It does not pull the stump out, and it does not dig up the root system. It turns the visible stump, and the top of the root flare, into a pile of chips sitting in a shallow hole.
For nearly every Austin back yard that is exactly what you want, and it costs a fraction of excavating the root plate. Send a photo with something for scale and we will price it.
What stump grinding costs in Austin
| Stump diameter | Price | Notes |
|---|---|---|
| Under 12 in | $120 – $180 | Crepe myrtle, small elm. Twenty minutes of grinding. |
| 12 – 24 in | $180 – $280 | The most common size in Austin yards. |
| 24 – 36 in | $280 – $400 | Mature live oak or pecan. Slower going. |
| Over 36 in | $400+ | Priced per job. Heritage-size trunks take real time. |
Three things add cost. A stump tight against a wall, a fence post or a slab, where the machine cannot swing freely. A back yard with only a 36-inch gate, which means a smaller walk-behind grinder and roughly double the time. And limestone, which on the west side of Austin often sits inches under the surface and blunts teeth fast.
Tell us about buried irrigation, cable or gas before the day. We call 811 for the public utilities, but the sprinkler line you put in yourself is not on any map.
How deep we go, and why it matters
Our standard is 8 to 12 inches below grade. That is enough to lay sod, seed grass, or run a mower over the spot without ever touching wood. If you want to plant a new tree in the same hole, say so, because that needs 18 inches or more and a different price, and honestly you are usually better off planting a few feet to one side.
Grinding four inches down is cheaper and it is what a lot of cut-price quotes mean. It also leaves wood close enough to the surface that the ground sinks in a year and you get mushrooms every spring.
What happens to the roots
They stay in the ground and rot, which takes anywhere from three to ten years depending on species and how wet the soil stays. Live oak and pecan roots are slow. Hackberry and Arizona ash go quicker. Nothing about that process hurts your foundation or your plumbing, since dead roots shrink rather than grow.
Surface roots running out from the stump can be ground too, at extra cost, and it is worth it if they are lifting a path or catching the mower. One thing to know about live oaks: they sucker from the root system after the trunk is gone, sometimes for a couple of years, and you will be pulling up shoots across that part of the lawn. Full detail in what stump grinding costs and what happens to the roots.
How the job runs
- Photo and a rough diameter. A tape measure across the cut face is ideal, a shoe next to it is fine.
- We check gate width, because it decides which machine comes.
- Utility locate where anything is buried nearby.
- Grind down past 8 inches, then work outward across any surface roots you have asked us to take.
- Chips either backfill the hole or go on the truck, your call, and the area gets raked level.
What to do with the hole
Grinding produces far more volume than the hole can take, because chipped wood takes up more room than solid wood. Most people keep enough chips to fill the hole and have us haul the rest away. Do not simply mound the chips and lay sod on top: they will decompose, the ground will drop two or three inches over a year, and you will have a dip to fill.
If you want grass there this season, take all the chips away and backfill with topsoil instead. Wood chips pull nitrogen out of the soil as they break down and new grass struggles in them.
Questions about stump grinding
What is stump grinding?
Stump grinding uses a spinning wheel of carbide teeth to chew a tree stump into mulch, typically 8 to 12 inches below ground level. It leaves the deeper root system in place to decay naturally. It is faster, cheaper and far less destructive to an Austin yard than digging the whole root plate out with a machine.
How soon after stump grinding can I plant?
Grass can go down as soon as you have cleared the chips and backfilled with topsoil, so within a few days. A new tree in the same spot should wait about a year, and even then plant three to four feet to the side. The remaining wood ties up nitrogen as it rots, which is hard on anything trying to establish.
Can you grind a stump without removing the tree first?
Yes. Plenty of our Austin stump jobs are old stumps left behind by someone else, sometimes years earlier. Weathered stumps are actually easier, because the wood has softened. Send a photo, tell us roughly how wide across the top, and we will quote it as a standalone visit.
Will the stump grow back?
The stump will not, but the roots of some species send up suckers. Live oak is the main offender in Austin and can push shoots across the lawn for a year or two. Hackberry and Chinese tallow do it as well. Mowing them off repeatedly exhausts the roots, and that is the simplest fix.
How long does grinding a stump take?
A 12-inch stump takes about twenty minutes. A 30-inch live oak stump in an accessible front yard takes an hour to ninety minutes. Put that same stump behind a narrow gate so we have to use the walk-behind machine and it can take most of a morning. Access changes the time more than size does.
Where we grind stumps
Stump grinding in Austin and Round Rock, plus Cedar Park, Georgetown, Leander, Pflugerville, Hutto, Lakeway, Kyle and Buda.