WASHINGTON · UTILITY

Tacoma Power tree trimming near power lines

Tacoma Power inspects and trims every circuit it operates on a four-year cycle, to 10 ft from distribution lines and 15 to 18 ft from transmission lines. Its written policy puts the low-voltage service wire to your weatherhead on the customer or the customer’s contractor.

Rules checked 2026-10-02 · Sources at the end

Where Tacoma Power trims

Tacoma Power, part of Tacoma Public Utilities, serves Tacoma, Fircrest, University Place and Fife, parts of Steilacoom and Lakewood, Joint Base Lewis-McChord, and unincorporated Pierce County as far south as Roy. Pierce County addresses outside that footprint are served by PSE in parts of the county (see Puget Sound Energy tree trimming) or by Peninsula Light on the Gig Harbor and Key peninsulas; the utilities index has the full list.

What Tacoma Power trims and how often

Crews maintain clearances on all the transmission and distribution circuits Tacoma Power operates. Each circuit is inspected and trimmed on a four-year cycle, so a given street sees a crew about every four years unless a problem is reported sooner.

The vegetation policy favors removal over repeat pruning: trees that will pose a continual maintenance problem or hazard to the lines are removed when possible, and a tree likely to grow back into the clearance within three years of trimming is a candidate for replacement. Danger trees, those within falling distance of a line and posing imminent danger, are identified and the owner notified. The policy does not state whether the work is free or whether wood is hauled away (not stated).

A worker in gloves cutting through a slender tree trunk near its base with a chainsaw, with sawdust flying, in a woodland
Felling a slender tree with a chainsaw, cutting at the base of the trunk. Photo: kasia / Unsplash

Clearance distances

Tacoma Power’s overhead vegetation policy sets clearances by voltage.

Line typeHorizontal clearanceOverhead
Low voltage, 0–750 V (secondaries and services)3 to 5 ft
Medium voltage, 751 V to 50 kV (distribution)10 ft10 ft
High voltage, 72.6–121 kV15 ftNo overhanging branches
Transmission, 230–242 kV18 ftNo overhanging branches
Poles (climbing space)3 ft from the pole surface in all directions

The service wire to your house

The policy is explicit: low-voltage service conductors that run to the customer’s weatherhead on their property are to be trimmed by the customer or their contractor. The 3 to 5 ft low-voltage figure in the table is the policy’s target for that class of wire. Tacoma Power’s outage page does not describe a temporary disconnect program for private tree work (not stated); call 253-502-8729 and ask before any work near the wire.

Because 3 to 5 ft is well inside the 10 ft safety zone described below, a general tree service should not be reaching in there with saws while the wire is live. Our tree removal near power lines page explains how a crew sequences that job with the utility.

How to request trimming

For questions about tree clearances, tree removal near lines or related problems, Tacoma Power’s number is 253-502-8729. There is no online request form on the page checked (not found), and no published response-time target (not stated). Trees nowhere near a line are ordinary tree trimming at your cost; the tree trimming cost page has the modeled Washington ranges.

NeedContactNotes
Tree clearance questions, removal near lines253-502-8729Tacoma Power vegetation
Outage, broken line, broken pole253-502-8602Report and track outages
Downed line911Never touch or approach it
Planting under street linesRecommended species list (Tacoma Power)List itself not found on the page checked

A tree touching a line right now

Treat the tree and the ground around it as energized. Tacoma Power’s rule for a downed line is to stay away, never touch or approach it, and call 911; if a line falls on your car, call for help and stay inside. Report a broken line, broken pole or outage at 253-502-8602. Do not let anyone cut, pull or push the tree.

A crew can start only after Tacoma Power has de-energized or cleared the line. What happens next, including a tree on the roof, is on our emergency tree service page.

Who may work within 10 ft of a line

Washington’s electrical safety rules keep unqualified people, and anything they are holding, at least 10 ft from unguarded overhead lines carrying up to 50 kV, with more distance above that (WAC 296-24-960(6)). Pruning or felling inside that zone is line-clearance tree trimming, reserved for trained line-clearance tree trimmers (WAC 296-45-035), working in pairs within voice range when closer than 10 ft to a conductor over 600 V (WAC 296-45-455).

A Tacoma or University Place tree service can take down everything outside that zone; the part inside it waits for Tacoma Power or a line-clearance contractor. Check the company’s L&I registration first with our Washington tree service license lookup guide.

Planting under Tacoma Power lines

Tacoma Power asks anyone planting a tree under a power line along the street to use its list of recommended species, but the page checked names no species and no height limit, and the list itself was not found (not found). The policy’s own logic is the practical guide: anything that will need pruning again within three years, or that will reach the 10 ft distribution clearance at maturity, is a tree the utility would rather remove than prune, so plant something that tops out well below the wires.

Sources

  1. Tacoma Public Utilities, Outages & safety (Tree trimming section: four-year cycle, 253-502-8729, 253-502-8602, downed-line instructions, recommended species list), checked 2026-10-02.
  2. Tacoma Power, Vegetation management, overhead (PDF policy: clearances by voltage, service conductors trimmed by the customer, removal criteria, danger trees), checked 2026-10-02.
  3. Tacoma Public Utilities, About TPU (service area: Tacoma, Fircrest, University Place, Fife, parts of Steilacoom, Lakewood, JBLM, unincorporated Pierce County to Roy), checked 2026-10-02.
  4. WAC 296-24-960, Working near energized lines (10 ft for unqualified persons), checked 2026-10-02.
  5. WAC 296-45-455, Line-clearance tree trimming (definition in WAC 296-45-035), checked 2026-10-02.
  6. PSE, Service area map (PDF: Pierce County outside Tacoma), checked 2026-10-02.
  7. Peninsula Light Co., FAQ (Gig Harbor and Key Peninsula service area), 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

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.

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