How Does Stump Grinding Work?
Stump grinding runs a toothed wheel at speed, cutting the stump into chip a layer at a time. Successive passes work down and sideways until the ground is level again.
Chip is left in the cavity by default. Most customers use it as backfill and cap the top with soil.
What Makes Stump Grinding Take Longer Here?
Moraine till around St. George is high in lime and carries stone all through it. Where the ground is silt or clay, grinding runs at a steady, predictable rate.
Stone changes that. The wheel strikes it under full load, the teeth absorb the shock, and the identical face takes half as long again to clear. Both conditions are common here. They do not cost the same, and your quote states which one you have.
How Deep Should A Stump Be Ground?
Depth depends on your plans for that patch of ground, and the number is fixed on the quote beforehand:
- Six inches under grade covers a lawn, since grass roots never run deep - Deeper under a new flower bed, so young roots find soil instead of compressed chip - Deeper again beneath concrete, a shed pad or post holes, following the lateral roots out from the stump - Shallowest and cheapest of all where you only want the mower to clear it
What Should I Mention When I Call?
Three details shift the cost of stump grinding and removal, which is why we ask about them. Mentioning them on the first call saves time:
- Buried services of any kind, because a grinding wheel meets pipe and cable under full load, and drawings for the older St. George streets are often wrong - How wide the entrance is, since a standard yard gate admits only the small machine - Stone or ancient fence wire swallowed by the trunk, capable of writing off an entire set of teeth
Does The Ground Settle Afterwards?
Yes. Across the first year the chip and soil blend settles, so budget for one top-up.
Finish the backfill a little proud of the lawn. Clay holds onto whatever collects in a hollow, since the ground surrounding it drains slowly as well.