Low-maintenance, energy-efficient, the most popular choice in Western Washington.
$650 – $1,300
Fiberglass
Stiffer and slimmer frames; handles temperature swings with less expansion.
$900 – $1,800
Composite
Wood-look frames with vinyl-like upkeep.
$1,000 – $1,900
Wood or clad-wood
Classic look for Craftsman and historic homes; the highest upkeep.
$1,200 – $2,500
By project size
What a whole project costs
Project
Typical total
3–5 windows (a room or two)
$2,500 – $8,000
10–15 windows (most homes)
$8,000 – $24,000
20+ windows or large picture units
$18,000 – $45,000
Cost factors
What drives the price
Size and style
Picture, bay and oversized units cost more than standard double-hung or slider windows.
Frame material
Vinyl is the value pick; fiberglass and wood cost more up front.
Insert vs. full-frame
An insert fits inside the old frame. Full-frame replacement fixes rot but adds trim and siding work.
Access
Second-story and hillside windows need more labor and sometimes staging.
Ways to save
How to keep the price down
Replace in one project – per-window pricing drops as the count goes up.
Ask your utility (PSE, Seattle City Light, Snohomish PUD) about current efficiency rebates before you sign.
Compare the same frame, glass package and install method across quotes, not just the total.
How we price
Ranges are typical installed prices for the Seattle–Tacoma–Everett area, checked against published local pricing (sources below). They’re for planning. Your written quote is the real number.
Most Puget Sound homeowners pay $650 to $1,800 per window installed. A standard vinyl double-hung sits near the low end; large fiberglass or wood units sit near the top.
Some installers schedule more flexibly in the wetter months, and good crews install one opening at a time so the house is never left open.
Sources
Where these prices come from
Our typical range, $650–$1,800 per window, installed, sits inside what local contractors and cost publishers report. Their numbers differ because each prices a different scope, finish level or home size.
What the range includes
Standard-size vinyl or fiberglass windows, removal of the old window, new trim and cleanup.
Not included
Permits, rotted framing, enlarging openings, lead-safe work on pre-1978 homes.
Prices checked September 30, 2026 by Clearview Home Guide.