Tree service in Forest Grove, Oregon

Tree removal permits in Forest Grove

Forest Grove’s permit reaches three kinds of tree. The first is any tree of 6 in diameter or more on developable land, with Oregon white oak pulled in at 3 in, a lower bar than any other species gets here. Next comes a tree on the Register of Significant Trees, where both removal and major pruning, meaning more than 20% of the crown, need a permit. Last is a street tree in the right-of-way or parkway, which the owner maintains but may not remove or heavily prune without the city’s approval. Community Development (503-992-3227) handles all three.

The city’s page does not define developable land, and the permit form page was unreachable at the last check, so the first call to make is to Community Development to ask whether your lot qualifies and what the fee is, since no amount was posted. Nor was the code chapter located, which means the city’s Trees page is the working reference until more is published. Outside those three categories a Forest Grove yard tree needs no permit, but the street-tree rule catches more people than the size rule does, so check which side of the sidewalk line the trunk is on before you book a crew. The Oregon permit guide shows how other cities draw the same lines.

Every city compared: tree removal permits in Oregon.

Source: Community Development (503-992-3227). Checked 2026-10-02.

Storm records for Washington County (covers Forest Grove)

Wind writes half of Washington County’s storm file. Of the 104 reports NOAA logged since 2016, 30 are high wind, 21 strong wind and 3 thunderstorm wind, which together outnumber the winter entries: heavy snow 24, winter storm 12, winter weather 5 and ice storm 4. The county ranks 23 of 36 in Oregon by total, so the volume is moderate, but the wind share is what shapes tree work in Forest Grove, where the Coast Range foothills begin at the edge of town and the forecast zones include the North Oregon Coast Range and its lowlands.

Timing still clusters: January, February and December are the peak months and 69% of reports land between November and February, when saturated soils let a gust tip a whole root plate rather than snap a limb. FEMA’s December 2025 National Risk Index rates strong wind in the county Relatively Moderate (score 80.1) and ice storms Relatively High (91.4). The recent three years brought 25 reports against 29 in the three before, a steady pace.

NWS forecast zones covering the county: North Oregon Coast Range; North Oregon Coast Range Lowlands; Tualatin Valley; West Hills and Chehalem Mountains.

Source: NOAA NCEI Storm Events Database, 2016 to June 2026 · NWS zone-county correlation files (2019 to 2026 versions). Checked 2026-10-02. NOAA Storm Events 2016-2026; zone-based events assigned to every county the NWS zone covers using the zone-county correlation file in force on the event date (2019-04-02 file used for 2016-2018).

Power lines and utilities in Forest Grove

Forest Grove runs its own electric utility, Forest Grove Light and Power, and its annual program keeps the distribution lines clear with 10 ft of separation. The service line to your house is yours to maintain, with 3 ft of clearance expected, and the city’s own Trees page repeats those 3 ft and 10 ft figures. Outages go to 503-992-3250 in business hours and 503-412-2444 after hours.

Because the utility and the permit office are both city departments, one call to the city can cover both questions when a tree sits near a line. Within 10 ft of an energized line only a qualified line-clearance crew may work; the power-line page explains the sequence and the utility directory lists the request contacts.

City limits served by municipal utility within PGE territory

Source: utility vegetation-management pages linked above; OAR 437-002-0306 (OR-OSHA). Checked 2026-10-02.

Pests and quarantines

Emerald ash borer (EAB) · quarantineMediterranean oak borer (MOB)

Forest Grove’s two watch-list pests are both wood borers, and both are confirmed in Washington County. Emerald ash borer comes with a quarantine: raw ash from a removal stays inside it, leaving only as chips of 1 in or less, as kiln-dried debarked lumber, or after heat treatment to 160 F at the core for 60 minutes with ODA permission, with loads covered between April 1 and September 30. Mediterranean oak borer has no quarantine, but the city’s 3 in threshold for Oregon white oak means an infested oak is both a permit question and a disposal question: chip or burn it on site, stump included, under Oregon DEQ burn rules, and move no oak firewood more than 10 miles.

Report sightings with photos to the Oregon Invasive Species Online Hotline. The EAB in Oregon page describes the symptoms that separate borer damage from ordinary decline.

• Emerald ash borer (EAB): OR (ODF/ODA): keep raw ash wood inside the quarantine; move only as <=1-in chips or kiln-dried debarked lumber, or heat 160F core for 60 min with ODA permission; cover loads during flight period Apr 1
• Mediterranean oak borer (MOB): Don't move cut oak firewood >10 miles from source; cut then burn or chip (<=1 in) infested trees including the stump on site; report with photos/location to Oregon Invasives Hotline

Source: Emerald ash borer (EAB) · Mediterranean oak borer (MOB). Checked 2026-10-02.

Growing conditions in Forest Grove

Forest Grove sits in USDA zone 8b on the 2023 map, with the Coast Range rising to the west, which is why its winter mix runs to the snow-and-ice overrunning events in the county file. Oregon white oak, the species the city protects from 3 in, grows well here and so do Douglas fir and bigleaf maple; replacement trees should be chosen with the two borers in mind, which rules out ash and argues for care with oak. Plant between late fall and early spring, and give a young tree the city utility’s 10 ft from distribution lines from the start.

USDA hardiness zone 8b (2023 map, by ZIP code).

Source: USDA Plant Hardiness Zone Map 2023 (OSU PRISM ZIP data). Checked 2026-10-02.

Labor index for Forest Grove

BLS counts Forest Grove in the Portland-Vancouver-Hillsboro metro, where tree trimmers and pruners earn a mean of $35.04 an hour (May 2025) and a median of $36.33, with 1,160 in the trade. Treat that as a labor index rather than a price, because the crew-hour a company bills adds equipment, insurance and disposal, and an ash or oak job inside the quarantine adds handling. Check bids against the modeled ranges in the cost guide and ask for crew-hours in writing.

Portland-Vancouver-Hillsboro, OR-WA: $35.04 per hour mean wage for tree trimmers and pruners (BLS, May 2025). This is a labor index, not a price; the modeled crew-hour cost used on this site is $225 (method).

276 landscaping-services establishments were counted in Washington County in 2023 (Census County Business Patterns, NAICS 561730).

Source: BLS Occupational Employment and Wage Statistics, May 2025, SOC 37-3013 · U.S. Census Bureau, County Business Patterns 2023, NAICS 561730. Checked 2026-10-02.

ZIP codes and nearby cities

Forest Grove’s land falls in ZIP code 97116, and the Census estimates 27,252 residents in 2025, up from 26,225 in 2020. Hillsboro is 8 miles away; Beaverton is 15, Newberg, Tigard and Sherwood 17, and Tualatin 19, so most neighboring cities are a 15 to 19 mile drive and travel time can show up on a bid. The Washington County page has the county-wide hazard ratings and burn rules.

ZIP codes with the most land inside Forest Grove: 97116

• Hillsboro8 miles
• Beaverton15 miles
• Newberg17 miles
• Tigard17 miles
• Sherwood17 miles
• Tualatin19 miles

County page: Washington County.

Source: U.S. Census Bureau, 2020 ZCTA to place and county relationship files. Checked 2026-10-02.

Tree services in Forest Grove

Tree removal is where Forest Grove’s three permit categories bite, so read it first if the tree is a street tree, a registered significant tree, or over 6 in on developable land. Trimming has its own permit trap here: more than 20% off a registered tree, or major pruning of a street tree, needs the city’s approval. Stump grinding inside the EAB quarantine means ash grindings stay on site, and emergency service covers the wind failures that make up half the county’s reports.

• Tree removal (statewide guide)
• Tree trimming in Forest Grove
• Stump grinding in Forest Grove
• Emergency tree service (statewide guide)
• Arborists and tree health
• Check a license in Oregon

What to do next

Find out which category your tree is in: a street tree, a registered significant tree, or a tree over 6 in (3 in for white oak) on developable land each means a call to Community Development at 503-992-3227, and anything else means none. Then have the tree assessed; a risk assessment is worth more here than in a calmer county because wind, not snow, is what fells trees in Washington County’s file.

Check the company through the Oregon license lookup, ask how ash or oak wood will be handled, and compare two or three written bids against the modeled range.