Gutter Installation Cost in Washington (2026)

Whole-house gutter installation in Washington typically runs $1,300–$5,000, with 6-inch oversized K-style seamless aluminum the dominant residential profile and roughly 38 inches of annual precipitation driving sizing. Washington's 38-inch state-average annual rainfall masks dramatic west-east variation — Olympic Peninsula and western Cascades receive 100+ inches/year primarily as winter Pacific frontal rainfall driving 6-inch oversized K-style as standard residential profile, while eastern Washington from Spokane to Walla Walla receives under 18 inches/year with 5-inch K-style adequate for low-volume runoff.

State Washington
Cities Covered 28
Typical whole-house seamless aluminum K-style with downspouts $1,300 – $5,000
BLS roofer wage $26.42/hr

Washington rainfall & drainage drivers

  • Annual rainfall: 38 inches/yr — drives K-style sizing and downspout count
  • Dominant residential gutter profile: 6-inch oversized K-style seamless aluminum — dominant in high-rainfall and steep-pitch corridors
  • Ground snow load: 25 psf — drives gutter bracket spacing and ice-shield requirements
  • Ice-dam risk tier: Moderate — periodic ice-dam events on north-facing eaves
  • Hurricane wind tier: None
  • Tree-canopy density: High — mature deciduous canopy drives gutter-guard demand and 2x annual cleaning frequency

Washington licensing & permits

  • License status: Statewide registration required (no exam)
  • License board: Washington State Department of Labor & Industries — Contractor Registration (official site)
  • Permit: state or municipal building permit typical for gutter installation on new construction; Washington State Energy Code stormwater verification

How gutter installation costs vary in Washington

State-specific code or insurance rule: Washington L&I requires every contractor performing residential or commercial work to register as a General Contractor or Specialty Contractor under RCW 18.27 — and unique to Washington, the Specialty Contractor registration is restricted to specific scope categories (Roofing, Plumbing, HVAC, Electrical) but not gutter, meaning Washington gutter contractors register under the General Contractor classification with a $12,000 surety bond and $250,000 liability insurance.

Cities in Washington

Compare gutter installation pricing for 28 cities across Washington.

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