Wood & Fiberglass Window Replacement cost: Seattle vs South Hill (2026)
Wood and fiberglass window replacement costs about the same in Seattle and South Hill in 2026 — roughly $20,700 in each.
Seattle WA
Typically around $20,700
South Hill WA
Typically around $20,700
Seattle vs South Hill: full breakdown
| Factor | Seattle | South Hill |
|---|---|---|
| Typical 2026 cost | $20,700 | $20,700 |
| Estimated range | $11,900–$29,500 | $11,900–$29,500 |
| Labor index (vs US) | ×1.18 | ×1.18 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | $125 | $125 |
| Labor share | $11,400 | $11,400 |
| Materials/equipment | $9,300 | $9,300 |
Treat these as 2026 localized estimates for wood and fiberglass window replacement, not quotes from a contractor.
No real cost edge either way
The two metros are effectively a wash for wood and fiberglass window replacement — pick on contractor quality and timing, not location.
Wood and fiberglass window replacement by type: Seattle vs South Hill
Each wood and fiberglass window replacement option, priced separately for both metros — the same local labor, climate and permit adjustments applied per city, so you can compare like for like.
| Type | Seattle | South Hill |
|---|---|---|
| Fiberglass | $11,900–$26,000 | $11,900–$26,000 |
| Composite | $13,050–$27,150 | $13,050–$27,150 |
| Aluminum-clad wood | $15,400–$31,850 | $15,400–$31,850 |
| Solid wood | $16,600–$35,400 | $16,600–$35,400 |
Treat these as 2026 localized estimates for wood and fiberglass window replacement, not quotes from a contractor.
Wood and fiberglass window replacement by number of windows: Seattle vs South Hill
Wood and fiberglass windows are a premium upgrade — figure roughly $800–$2,500 per window installed depending on material, size, and finish. Cost scales with the number of openings, and wood typically runs higher than fiberglass.
| Size | Seattle | South Hill |
|---|---|---|
| 5 windows | $5,400–$13,050 | $5,400–$13,050 |
| 10 windows | $10,700–$23,650 | $10,700–$23,650 |
| 15 windows | $16,000–$33,050 | $16,000–$33,050 |
| 20 windows | $21,300–$42,450 | $21,300–$42,450 |
| 25+ windows (whole home) | $26,000–$53,000 | $26,000–$53,000 |
All figures are 2026 localized planning estimates for wood and fiberglass window replacement — get an actual quote before you commit.
What windows pros earn in each metro
Labor is about 55% of a wood and fiberglass window replacement bill, so local wages drive most of the gap. These are real metro hourly wages for skilled installers (BLS OEWS), not estimates.
Seattle-Tacoma-Bellevue metro · about 32% above the US average installer wage.
Seattle-Tacoma-Bellevue metro · about 32% above the US average installer wage.
Source: U.S. Bureau of Labor Statistics, OEWS metro wages for HVAC installers (used as a trade-labor index).
Cheapest time for wood and fiberglass window replacement in either city
Two things line up in fall and winter: installers have open calendars and need the work, and manufacturers run their best promotions of the year. Buy then and you get both breaks at once.
How much should new windows really cost you?
Not every dollar in a window quote buys the same thing. Our editors break down frame, glass and install method to show where the value actually is.
The install case
A perfect window installed badly leaks and fails. Full-frame replacement with proper flashing beats a cheap pocket insert in a rotted opening — match the install method to your home's condition, not just the price.
The efficiency case
In extreme climates, triple-pane or premium low-E/gas-fill glass pays back in comfort and bills — and ENERGY STAR units may unlock rebates. Spend on the glass package before the frame upgrade.
The value case
Vinyl, double-pane, low-E windows deliver most of the comfort and efficiency for the lowest price. For whole-home replacements on a budget, they're the sensible default.
Buy the glass package your climate needs, default to vinyl frames unless you have a reason not to, and never let install quality be the thing you cut to hit a number.
Seattle vs South Hill
Is wood and fiberglass window replacement cheaper in Seattle or South Hill?
Not really — both cities land at almost the same number for wood and fiberglass window replacement, around $20,700 each.
Why does wood and fiberglass window replacement cost more in South Hill than Seattle?
South Hill's higher labor index (1.18 vs 1.18 in Seattle) is the biggest factor, with the mixed/mixed climate split playing a smaller role.
How much is wood and fiberglass window replacement in Seattle, WA?
In Seattle, wood and fiberglass window replacement typically runs $11,900–$29,500 in 2026, with most homeowners paying around $20,700.
Do windows pros really charge more in one city?
Real wage data backs this up — skilled installers earn roughly $41.1/hr in Seattle-Tacoma-Bellevue compared with $41.1/hr in Seattle-Tacoma-Bellevue (BLS OEWS). Labor is about 55% of a wood and fiberglass window replacement job, so that wage gap is what mostly drives the price difference.
When is the cheapest time to buy wood and fiberglass window replacement — and does it differ by city?
It doesn't vary by location — Late fall and winter is the discount window in both Seattle and South Hill (roughly 5–15% off), while spring and summer peak tends to be the most expensive in either city.
Should I choose where to live based on wood and fiberglass window replacement cost?
No — the cost is essentially identical between Seattle and South Hill. Base the decision on the things that actually vary: contractor reputation, scope, equipment tier and timing.
Compare wood and fiberglass window replacement in other cities
Updated June 2026 · By Serhat Özçelik