Stump Grinding in Dublin, CA

Stump grinding uses a machine with a toothed cutting wheel to chew a stump down into wood chips, below the surface of the soil. It is faster and far less disruptive than digging a stump out, and it leaves the yard ready for new turf, a planting bed or pavers. In Dublin we grind stumps left from our own removals and old stumps that have been sitting in yards for years.

How deep is deep enough

The right depth depends on what goes there next. For lawn or ground cover, a few inches below grade is usually plenty. For a new tree in the same area, grinding deeper and removing more chips gives the new roots room. For hardscape, we grind deeper still and remove chips so the base material sits on soil, not decaying wood that will settle.

What stays in the ground

Grinding removes the stump and the root flare, not the whole root system. The larger roots that run out under the lawn are left to decay unless they are surfacing or in the way of new work, in which case we can chase them with the grinder. As roots decay, small low spots can appear, and topping them up with soil is normal.

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Before we grind: utilities and access

Grinding cuts into the soil, so buried lines matter. California law calls for an 811 ticket before digging, and PG&E says to call at least two working days ahead. Irrigation lines and low-voltage lighting are not marked by 811, so we ask you where those run. Access is the other question: most backyard grinders fit through a standard side gate, but a stump on a slope or behind a narrow gate may need a smaller machine or more hand work.

Oak and bay stumps

If the tree came down because of suspected sudden oak death, UC guidance recommends keeping infected material on site rather than moving it, and chipping is one of the recommended ways to handle it. Ask us to leave the grindings as mulch in that case. Keep in mind that a stump from a heritage tree removed without a permit is still evidence of a violation; grinding it does not change the city's process.

Chips: keep or haul

Grindings make a decent mulch for beds once they have aged. A large stump produces a surprising volume, so if you do not want them, hauling is quoted as its own line.