Stump grinding in Sherwood, Oregon
Sherwood is inside Oregon’s emerald ash borer quarantine, which means an ash stump and every ash round from it stay in the zone unless they are chipped to 1 inch or smaller.
$150 minimum; not a quote.
Oregon locate notice before grinding near lines.
Rules for burning the debris.
Before the grinder arrives in Sherwood
Treat ash wood as restricted. The ODF and ODA quarantine keeps raw ash inside the zone; it can leave only as chips 1 in or smaller, as kiln-dried debarked lumber, or after a 160F core heat treatment for 60 minutes with ODA approval. Loads moved during the April 1 to September 30 flight period must be covered.
Call 811 two business days ahead of grinding. Sherwood asks for an email notice 72 hours before removing a tree on a single-family lot, listing species, DBH, location, reason and a photo, so the stump should already be on record. A street-tree stump means a permit ($35 for the first tree plus $15 each additional, plus a 5% technology fee) and a replacement within 6 months.
What stump grinding costs in Sherwood
Stump width, root spread and gate access drive the modeled range below. Ash stumps add a disposal constraint, and hauling grindings costs more than leaving them as mulch.
BLS puts the mean tree-worker wage for the Portland-Vancouver-Hillsboro area at $35.04 an hour, with a median of $36.33. That is crew pay, not a price.
| Stump diameter | Modeled range |
|---|---|
| Under 12 in | $150 minimum |
| 12 to 24 in | $150 |
| 24 to 36 in | $150–$200 |
| 36 to 48 in | $150–$300 |
Modeled at $4 to $6 per inch of diameter with a $150 minimum, rounded to $50. Modeled estimate, not quotes (method).
Source: BLS Occupational Employment and Wage Statistics, May 2025, SOC 37-3013. Checked 2026-10-02.
Grindings, wood and quarantines
The simplest way to stay inside the ash rules is to spread grindings on site. Report suspected borer damage on other ash through the Oregon Invasive Species Online Hotline; our EAB page shows the signs.
Mediterranean oak borer is confirmed here as well. Infested oak, stump included, should be chipped to 1 in or burned on site, and oak firewood kept within 10 miles. Oregon DEQ sets the burn rules; check the burning guide. Removing a public tree illegally can cost up to $500 per day per tree under Sherwood’s penalty section, so confirm whose stump it is.
Burning the debris
Full rules, seasons and alternatives: yard debris burning rules in Oregon.
Source: Oregon DEQ. Checked 2026-10-02.
Replanting the spot
Washington County logged 104 NOAA storm reports, ranking 23rd of 36, and high wind (30) plus strong wind (21) account for about half. FEMA rates ice risk relatively high at 91.4. Wind-thrown trees often leave a torn root plate that needs grinding below grade before you replant.
The 6-month street-tree replacement clock starts at removal, so grind early. Sherwood is in hardiness zone 8b, and fall or early winter planting suits most replacements.
Hardiness zone 8b. Grinding vs full removal: which one you need.
Source: USDA Plant Hardiness Zone Map 2023 (OSU PRISM ZIP data). Checked 2026-10-02.
What to do next
Send the city’s 72-hour notice, call 811, and decide where the chips go before work starts. The Sherwood page has the street-tree tiers, and the Oregon license lookup guide shows how to check a contractor.
Back to tree service in Sherwood · Stump grinding across WA and OR · Stump grinding in Oregon · cost guide.
Sources
- Sherwood tree code (Sherwood Zoning and Community Development Code 16.142 (city page cites 16.140.060; 2026 application cites 16.142.060); penalties 16.02.040), checked 2026-10-02.
- BLS Occupational Employment and Wage Statistics, May 2025, SOC 37-3013, checked 2026-10-02.
- NOAA NCEI Storm Events Database, 2016 to June 2026, checked 2026-10-02.
- NWS zone-county correlation files (2019 to 2026 versions), checked 2026-10-02.
- Portland General Electric vegetation management, checked 2026-10-02.
- Oregon 811 locate rules, checked 2026-10-02.
- USDA Plant Hardiness Zone Map 2023 (OSU PRISM ZIP data), checked 2026-10-02.
Comparing quotes? Check these eight things first.
Two quotes for the same tree can differ by thousands. The gap is usually in what's included, not the cutting.
We don't vet or license anyone. These are the official lookups; each takes about a minute.
| What | Where | What it shows |
|---|---|---|
| Oregon CCB license | CCB license search | Active status, bond, insurance on file, complaints |
| Oregon LCB license | LCB verify a license | Landscape contracting license, which covers tree work |
| Washington contractor registration | L&I Verify | Registration, bond, workers' comp, lawsuits, violations |
| ISA Certified Arborist | ISA directory | Current certification and credential number |
How to read them: Oregon guide · Washington guide
Westcoast-Tree.org is an independent information site. If you call a number on this site, the call goes to a tree service that covers your area and we may be paid a referral fee by that company. We don't perform tree work and we don't vet, license or insure anyone. Cost figures are modeled estimates, not quotes (method). Not affiliated with the former Westcoast Tree Care Inc of Tumwater, WA.