Does stump grinding remove the roots?

No. Grinding removes the visible stump and the top of the root flare, usually 4-12 inches below grade. The remaining roots stay in the ground and decompose naturally over five to ten years. They won't keep growing once the stump is gone, and for almost every yard that's exactly the right outcome.

How much does stump grinding cost in the Denver area?

It's usually the cheapest line item in tree work. As a standalone job, most residential stumps in the Denver South Metro run roughly $100-400 depending on diameter, wood hardness, and how easy it is to get a machine to the stump. Bundled with a removal it often costs less. An exact quote is free.

Can I plant a new tree where the old stump was?

Generally you'll want to offset the new tree a few feet from the old spot. Even after grinding, the ground there is full of decaying roots and wood chips rather than real soil, which makes it a poor rooting environment for a young tree. Planting beside the old location instead of directly on top of it gives the new tree a much better start.

Will grass grow in the stump grindings?

Not well, if you seed straight into them. Decomposing wood chips temporarily tie up nitrogen in the soil, which starves new grass. The fix is simple: rake out most of the grindings, backfill the low spot with topsoil, then seed or sod on top.

Tree Services

Stump Grinding: What Denver Homeowners Should Know

By the Stroikos Services team · July 9, 2026 · Serving the Denver South Metro area

When a tree comes down, the stump is what’s left staring at you. Grind it? Dig it out? Pour something on it and wait? Here’s an honest rundown of how stump grinding works, what it costs in the Denver market, and the handful of situations where you’d choose something else.

What stump grinding actually does

A stump grinder is a machine with a carbide-toothed wheel that chews the stump into wood chips, working from the top down until the whole thing sits below ground level. The operator grinds the visible stump plus the flared top of the root system, then the hole gets backfilled.

The key thing to understand: grinding does not remove the roots. The lateral roots that spread out under your lawn stay in the ground. That’s fine — with the stump gone they can’t regrow, and they decompose naturally over the next five to ten years, feeding the soil as they break down. You’ll never know they were there.

Grinding vs. full removal vs. chemicals vs. DIY

Stump grinding is fast (most residential stumps take under an hour), affordable, and leaves your yard usable the same day. This is the right call for the vast majority of yards.

Full stump removal means excavating the stump and major roots with heavy equipment. It leaves a large crater, tears up surrounding lawn, and typically costs several times more than grinding. It’s really only justified when you’re building on the spot — a foundation, driveway, or major hardscape where buried wood settling over time would be a problem.

Chemical stump rotting products speed up decay, but “speed up” still means years of an ugly, softening stump — and Colorado’s dry climate slows decomposition further. Burning stumps out is a non-starter along the Front Range for obvious fire-risk reasons.

DIY grinding with a rented machine is possible, but rental units are far weaker than professional grinders, and flying debris plus the risk of hitting buried utilities make this an unforgiving weekend project. Between the rental fee and a lost Saturday, you often haven’t saved much.

For most homeowners, grinding wins on every axis that matters: speed, cost, and how the yard looks afterward.

How deep do they grind?

Standard grinding goes about 4 to 12 inches below grade — deep enough to backfill with soil and grow grass over the spot as if the tree was never there. If you’re planning to replant, install sprinkler lines, or pour hardscape in that area, tell your tree service up front: grinding deeper is usually possible on request, and it’s much easier to do while the machine is already there.

What happens to all those grindings?

Grinding a stump produces a surprisingly large mound of wood-chip mulch — often two to three times the volume of the original stump. You have two options:

Use them as backfill and mulch. The chips can fill the hole and top-dress garden beds. Organic mulch is genuinely good for soil as it decomposes.
Have them hauled away and the hole backfilled with topsoil, usually for a modest add-on charge.

One caveat if you want grass there: don’t seed directly into a hole full of grindings. As wood chips decompose, soil microbes temporarily consume the available nitrogen — the same nitrogen new grass needs — so the spot grows thin and yellow for a year or more. Instead, remove most of the chips, backfill with topsoil, then seed. The hole will settle as buried wood breaks down, so expect to top it off once.

Can you plant a new tree in the same spot?

Generally, plant beside the old stump rather than directly on top of it — offset a few feet at minimum. The old location is a pocket of decaying wood and roots, not soil, and young trees establish poorly there. If you’re set on the exact spot, deeper grinding plus generous topsoil replacement helps, but offsetting is the smarter move.

What stumps cost in the Denver market

Good news: stump grinding is usually the cheapest line item in tree work. As a standalone service in the Denver South Metro, most residential stumps land roughly in the $100-400 range, driven mainly by stump diameter, wood hardness, and access — a stump in a fenced backyard that requires a smaller machine costs more than one next to the driveway. Multiple stumps ground on the same visit usually come at a discount, and grinding bundled with a tree removal is cheaper still. Every yard is different, so treat that as a typical market range; an exact quote costs nothing.

Why leaving a stump is a bad deal

It’s tempting to just ignore a stump, but they don’t age gracefully:

Suckers. Many species — aspens, cottonwoods, elms, Siberian elms all over Denver-area yards — send up vigorous sprouts from the stump and roots for years, and mowing them off doesn’t stop it.
Pests. Decaying stumps attract carpenter ants, beetles, and fungi close to your home and healthy trees.
Hazards. A stump hidden by grass is a mower-blade killer and a trip hazard for kids.
Lost space. A stump freezes a chunk of yard you can’t mow, plant, or build over, and drags down curb appeal.

When to call a professional

If the stump is bigger than a foot across, sits near a fence, utility line, sprinkler system, or foundation, or you simply want it gone this week instead of this decade, professional grinding is the answer. A pro will call in a utility locate, size the machine to your access, grind to the depth your plans require, and leave you with a spot you can seed, mulch, or plant next to.

Stroikos Services grinds stumps across Denver, Aurora, Littleton, Englewood, Centennial, and Highlands Ranch — as part of a tree removal or as a standalone visit for that stump you’ve been mowing around for years. Quotes are free and usually same-week.