King County · Washington

Tree service in Sammamish, Washington

Sammamish sets two thresholds: a conifer is significant at 8 inches DBH, a deciduous tree at 12, and removing either takes a permit from the Permit Center, with yearly and ten-year caps that scale with your lot.

Rules and data verified 2026-10-02 · Sources at the end

City permitRequired

Conifer 8"+ DBH; deciduous 12"+ DBH

King County storm reports133

Since 2016; peak Feb · Dec. Rank 16 of 39 in Washington.

Labor index$33.85/hr

Seattle-Tacoma-Bellevue, WA, BLS May 2025 mean wage. Not a price.

Population 202566,110

Census Vintage 2025 estimate.

Hardiness zone8b

USDA 2023 zone by ZIP code.

Tree removal permits in Sammamish

Sammamish splits the threshold by tree type: under SMC 21.03.060 a conifer counts as significant at 8 inches DBH and a deciduous tree at 12, so a 10-inch Douglas fir needs a permit while a 10-inch maple does not. The permit comes from the Community Development Permit Center, and the code caps the number of significant trees a lot can lose: 2 a year and 6 in any ten years on lots under a quarter acre, 4 and 12 up to half an acre, 6 and 18 up to an acre, 8 and 24 up to two acres, and 10 and 30 on larger parcels.

Before you call a crew, work out which bracket your lot falls in and how many significant trees have already come down there, because the caps are set by lot size and counted over ten years. A tree in the street right-of-way needs a Type B Right-of-Way permit instead of the standard one. The city did not publish a fee on its trees page, so ask the Permit Center at 425-295-0531 when you apply, and use the Washington permit guide to see how the two-threshold rule compares with neighboring cities.

Permit, Sammamish

Permit required

Threshold: Conifer 8"+ DBH; deciduous 12"+ DBH

Allowances and tiers: Permit for significant trees; limits by lot (SMC 21.03.060): <1/4 ac = 2/yr (6 per 10 yrs); 1/4-1/2 = 4 (12); 1/2-1 = 6 (18); 1-2 = 8 (24); >2 = 10 (30)

Street trees: Trees in street ROW need a Type B Right-of-Way permit

Issued by: Community Development – Permit Center (425-295-0531)

SMC 21.03.060; 21.03.070.I.2.b · Official page · Checked 2026-10-02

Every city compared: tree removal permits in Washington.

Source: Community Development – Permit Center (425-295-0531), SMC 21.03.060; 21.03.070.I.2.b. Checked 2026-10-02.

Storm records for King County (covers Sammamish)

King County’s storm count is falling. NOAA logged 32 reports in the most recent three years against 54 in the three before, a drop of about 40 percent, and the county now sits 16th of Washington’s 39 counties with 133 reports since 2016. A quieter stretch is not a safe one, since the 2024 east-wind episode landed inside it, but it does mean more of the removal work in Sammamish is planned rather than forced.

Heavy snow still leads the record with 68 reports, followed by high wind at 23, winter weather at 13 and ice storms at 11. FEMA’s National Risk Index (December 2025) places the county Relatively High for both ice storm (91.1) and winter weather (94.7) and Very Low for strong wind (4.5), and with 84 percent of reports falling November through February, spring to early autumn is the window for permit applications and scheduled removals.

Reports by month, 2016 to 2026

JFMAMJJASOND
Event typeReports
Heavy Snow68
High Wind23
Winter Weather13
Ice Storm11
Strong Wind9
Winter Storm8
Wildfire1
Largest recent episode: 2024-11-19: 7 reports (High Wind 7).

Inside that quieter three-year stretch sits the county’s worst single episode. On November 19, 2024, a rapidly deepening low crossed the offshore waters and drove strong winds out of the east across Western Washington; NOAA logged 7 high-wind reports from King County that day, and its summary lists damaged homes and vehicles, long power outages and two people killed by falling trees. The reports came from the Bellevue, East Puget Sound lowlands and Seattle zones, and for Sammamish the lesson is to look at the big conifers first, since an 8-inch threshold means the trees most likely to fail in wind are exactly the ones that need a permit to remove in advance.

NWS forecast zones covering the county: Cascades of Snohomish and Northern King Counties; Cascades of Southern King County; City of Seattle; Eastside; Foothills and Valleys of Central King County; Foothills and Valleys of Pierce and Southern King Counties.

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 Sammamish

Puget Sound Energy is the electric utility for Sammamish. PSE trims near overhead primary lines in its right-of-way, but it does not trim service lines, the span from the pole to your house; that part is the owner’s. What PSE will do is a safety disconnection, so you or a private arborist can trim near the drop with the line de-energized. PSE does not publish a yard-tree clearance distance; the only figure it cites is 10 feet, as the distance where electrocution risk begins, so treat anything closer as work for a qualified line-clearance crew. That matters in a yard full of conifers and bigleaf maple, because a fast grower planted near a line will be back inside that 10-foot zone within a few seasons.

PSE’s outage number is 1-888-225-5773, and a line on the ground is a 911 call. If your electric bill names a different utility, call the number on the bill and look it up in the utility directory.

UtilityOutage lineTree trimming requests
Puget Sound Energy1-888-225-5773 (https://www.pse.com/en/contactpse)request page

Inferred: PSE serves King Co. outside Seattle; city is not among Seattle City Light franchise cities; Tanner Electric Co-op also has rural King Co. territory

Power line involved? Only a qualified line-clearance crew may work within 10 ft of an energized line. Call 911 or the utility outage line first; see tree removal near power lines.

Source: utility vegetation-management pages linked above; WAC 296-24-960 (WA L&I). Checked 2026-10-02.

Pests and quarantines

Spongy moth (formerly gypsy moth)

Spongy moth has been confirmed in King County, though no quarantine applies, so nothing about moving wood or chips within the county changes for a Sammamish removal. What the state asks of homeowners is small: report any sighting through the WA Invasives app, check firewood, patio furniture and RVs before they travel in from an infested state, and allow a trap on your property if asked.

  • Spongy moth (formerly gypsy moth): Report sightings (OR Invasive Species Hotline / WA Invasives app); inspect wood, outdoor furniture, RVs before moving from infested states; host a trap if asked

Source: Spongy moth (formerly gypsy moth). Checked 2026-10-02.

Growing conditions in Sammamish

USDA places Sammamish in hardiness zone 8b. Given that the city’s permit threshold for conifers is 8 inches, any Douglas fir or western redcedar you plant now will one day be a regulated tree, so pick the spot with that in mind, well off the property line and clear of the service drop. The county’s 68 heavy-snow reports also favor conifers with a single leader over multi-stemmed ornamentals that split under wet snow.

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 Sammamish

Sammamish bids are priced off the Seattle-Tacoma-Bellevue labor market, where BLS puts tree trimmers and pruners at a $33.85 mean and $32.75 median hourly wage (May 2025) across about 310 workers. The number is an index of what a climber earns, not a price per tree; a large conifer removal is billed in crew-hours that carry rigging gear, a chipper, hauling and insurance, which is how the modeled ranges on the service pages are built.

Seattle-Tacoma-Bellevue, WA: $33.85 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 $210 (method).

843 landscaping-services establishments were counted in King 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

Sammamish’s land is mostly in ZIP codes 98075, 98074 and 98029. Issaquah is 3 miles away, Bellevue 6, Redmond 7, Mercer Island 9, Kirkland 10 and Renton 11, each with its own threshold, so confirm which city’s rule applies to a tree near a boundary before anyone measures it. Countywide storm, hazard and utility data is on the King County page.

ZIP codes with the most land inside Sammamish: 980759807498029

County page: King County.

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

Tree services in Sammamish

The service pages below apply Sammamish’s two thresholds and lot caps to each kind of job. Removal is where the 8-inch and 12-inch rules and the Type B right-of-way permit come in; trimming runs into PSE’s line rules and the service drop you own; stump grinding needs the 811 locate; and the emergency page sets out the order of calls when a conifer comes down in an east wind.

What to do next

Identify the tree first, conifer or deciduous, then measure the diameter at breast height against 8 or 12 inches. Over the line, count your lot’s remaining allowance and apply through the Permit Center at 425-295-0531; a dying or leaning tree is worth a risk assessment so the application has something to stand on. Confirm the company is registered through the Washington license lookup before work starts.

Sources

  1. Sammamish tree code (SMC 21.03.060; 21.03.070.I.2.b), checked 2026-10-02.
  2. NOAA NCEI Storm Events Database, 2016 to June 2026, checked 2026-10-02.
  3. NWS zone-county correlation files (2019 to 2026 versions), checked 2026-10-02.
  4. FEMA National Risk Index, December 2025 release, checked 2026-10-02.
  5. U.S. Census Bureau, Population Estimates Vintage 2025 and 2020 Census, checked 2026-10-02.
  6. BLS Occupational Employment and Wage Statistics, May 2025, SOC 37-3013, checked 2026-10-02.
  7. USDA Plant Hardiness Zone Map 2023 (OSU PRISM ZIP data), checked 2026-10-02.
  8. U.S. Census Bureau, 2020 ZCTA to place and county relationship files, checked 2026-10-02.
  9. Puget Sound Energy vegetation management, checked 2026-10-02.
  10. Spongy moth (formerly gypsy moth), 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.

01A current certificate of liability insurance, sent by the insurer
02A state license you looked up yourself: Oregon CCB or LCB, Washington L&I
03Who is on site: an ISA Certified Arborist, or a crew lead with years on the job
04Haul-away, chipping and cleanup written in, not assumed
05The stump: ground, left, or priced as a separate line
06Who pulls the city permit, and whether the fee is in the price
07What happens if a fence, roof or lawn gets damaged
08Your written approval before any extra work is added
Check any company yourself

We don't vet or license anyone. These are the official lookups; each takes about a minute.

WhatWhereWhat it shows
Oregon CCB licenseCCB license searchActive status, bond, insurance on file, complaints
Oregon LCB licenseLCB verify a licenseLandscape contracting license, which covers tree work
Washington contractor registrationL&I VerifyRegistration, bond, workers' comp, lawsuits, violations
ISA Certified ArboristISA directoryCurrent 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.

Call for a local estimate(877) 720-7431