Cost to Pergola / Gazebo Installation in Seattle, WA (2026)
If you’re budgeting a pergola / gazebo installation in Seattle, most projects run $1,792-$14,339, 19% above the $5,500 national average. What moves that number most is usually one thing: Size. On its own it can swing the cost by $500 - $20,000, so that’s the decision to slow down on before you sweat the smaller stuff.
Easiest place to save: Buy a pergola kit instead of sourcing raw lumber. Kit lumber is pre-cut, pre-notched, and often pre-drilled. The time savings in cutting and fitting makes the modest kit premium worthwhile.
$1,792-$14,339 in Seattle
19% above the national average · 1.19x cost multiplier
In Seattle, a pergola / gazebo installation runs $1,792 to $14,339 on average - about 19% above what homeowners pay nationwide. The West Coast market's labor costs account for most of the gap, with material pricing and local permitting fees adding to the spread. Use the cost table below to compare budget, mid-range, and premium options side by side.
Cost Breakdown in Seattle
| Line Item | Low | Mid | High |
|---|---|---|---|
| Cost per sq ft | $12 | $42 | $90 |
| Materials | $1,596 | $3,192 | $7,410 |
| Labor | $0 | $2,819 | $7,046 |
| Permits | $0 | $228 | $456 |
| Total | $1,596+14% vs. national avg | $6,239+20% vs. national avg | $15,824+20% vs. national avg |
Budget
10x10 prefab cedar or vinyl pergola kit - self-assembly on existing patio, no electrical or posts set in concrete
Mid-Range
12x16 professionally installed cedar or pressure-treated pergola with concrete footings, climbing plant cables, no roofing
Premium
16x20 custom cedar or composite louvered pergola with motorized louvers, integrated lighting, fans, concrete footings, and polycarbonate or metal roof panels
Material Options
Material prices below are national averages; availability in Seattle may shift costs slightly.
| Material | Cost/Unit | Best For |
|---|---|---|
| Pressure-Treated Pine | $10 - $20 per sq ft installed | Budget builds where cost is the primary factor and maintenance is acceptableLowest cost, widely available, structurally strong |
| Cedar | $20 - $40 per sq ft installed | Most homeowners who want a quality wood pergola - the best value combination of cost, looks, and durabilityBeautiful natural appearance, naturally rot-resistant, lighter than PT pine, smells great, holds paint/stain well |
| Vinyl / PVC | $25 - $50 per sq ft installed | Homeowners who want a maintenance-free pergola and prefer a clean, white aestheticZero maintenance - never paints, stains, or rots, consistent color, durable |
| Aluminum (Powder-Coated) | $35 - $75 per sq ft installed | Modern and contemporary homes where a clean, low-maintenance structure is the goalVery durable, lightweight, never rots or splinters, modern look, can accommodate motorized louvers |
| Composite / Fiberglass | $30 - $60 per sq ft installed | Homeowners who want a wood-look pergola with minimal maintenanceDurable, low maintenance, can mimic wood grain, consistent color |
Other Projects in Seattle
Seattle Estimate
Typical Range
$1,792-$14,339
vs. National Average
19% above national
Cost Multiplier
1.19x
Cost Per sq ft
$12-$90
This 1.19x estimate prices Seattle labor from BLS Occupational Employment and Wage Statistics (May 2025) and applies a lighter regional adjustment to materials and permits, which vary less by metro than labor does. Actual bids vary by contractor, project scope, and timing.
See national average costs →