Wood & Fiberglass Window Replacement cost: Boulder vs Denver (2026)
Budget-wise, wood and fiberglass window replacement in Boulder ($18,350) runs 8% less than in Denver ($19,800), a roughly $1,450 spread.
Boulder CO
Lower costTypically around $18,350
Denver CO
Typically around $19,800
Boulder vs Denver: full breakdown
| Factor | Boulder | Denver |
|---|---|---|
| Typical 2026 cost | $18,350 | $19,800 |
| Estimated range | $10,550–$26,150 | $11,350–$28,250 |
| Labor index (vs US) | ×1 | ×1.08 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.04 | ×1.04 |
| Local permit | $125 | $125 |
| Labor share | $10,100 | $10,900 |
| Materials/equipment | $8,250 | $8,900 |
These are 2026 planning figures for wood and fiberglass window replacement, localized to each city — not formal quotes.
How much should this gap actually matter?
A 8% difference on wood and fiberglass window replacement is minor — you'll typically see a wider spread just from getting multiple quotes in the same city, so don't let location drive the decision.
Wood and fiberglass window replacement by type: Boulder vs Denver
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 | Boulder | Denver |
|---|---|---|
| Fiberglass | $10,550–$23,000 | $11,350–$24,850 |
| Composite | $11,550–$24,050 | $12,500–$26,000 |
| Aluminum-clad wood | $13,650–$28,200 | $14,750–$30,500 |
| Solid wood | $14,700–$31,350 | $15,850–$33,850 |
All figures are 2026 localized planning estimates for wood and fiberglass window replacement — get an actual quote before you commit.
Wood and fiberglass window replacement by number of windows: Boulder vs Denver
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 | Boulder | Denver |
|---|---|---|
| 5 windows | $4,800–$11,550 | $5,200–$12,500 |
| 10 windows | $9,500–$20,950 | $10,250–$22,600 |
| 15 windows | $14,150–$29,250 | $15,300–$31,600 |
| 20 windows | $18,850–$37,550 | $20,350–$40,600 |
| 25+ windows (whole home) | $23,000–$46,950 | $24,850–$50,700 |
These are 2026 planning figures for wood and fiberglass window replacement, localized to each city — not formal quotes.
What windows pros earn in each metro
Since labor accounts for around 55% of what a wood and fiberglass window replacement job costs, it's the biggest lever behind any price gap between cities. What you're seeing below is actual BLS metro wage data for skilled installers — not a guess.
No BLS metro wage series for Boulder; we use Colorado regional price parity instead.
Denver-Aurora-Centennial metro · about 15% 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
Window crews go quiet once the weather turns cold, and manufacturers time their deepest promotions to the same months — so an off-season buyer stacks a labor discount on top of a rebate.
How much should new windows really cost you?
Frame material, glass package and install type decide the price. Our editors on what's worth paying for.
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.
The install case
The best window on the market still fails when it's set into a bad opening without proper flashing. If the existing frame is rotted, a full-frame replacement that reseals the opening outlasts a cheap pocket insert every time — let the home's condition, not the lowest bid, decide the method.
The efficiency case
Where winters bite or summers punish, upgrading the glazing — triple-pane or a gas-filled low-E package — returns real money on heating and cooling bills, and ENERGY STAR-rated units can open the door to rebates. Put that upgrade money into the glass before you spend it on a fancier frame.
If you're trimming a window budget, trim the frame material before the glass package or the installation — those two are where corners actually show up, in comfort and in leaks.
Boulder vs Denver
Is wood and fiberglass window replacement cheaper in Boulder or Denver?
Boulder comes out ahead here, at roughly $18,350 for wood and fiberglass window replacement compared with $19,800 in Denver — a 8% ($1,450) gap as of 2026.
Why does wood and fiberglass window replacement cost more in Denver than Boulder?
The main driver is local labor rates: Denver's labor index is 1.08 versus 1 in Boulder. Climate zone (cold vs cold) also shift the total.
How much is wood and fiberglass window replacement in Boulder, CO?
wood and fiberglass window replacement in Boulder runs $10,550–$26,150 as of 2026 — most jobs land near $18,350.
When is the cheapest time to buy wood and fiberglass window replacement — and does it differ by city?
No, the seasonal pattern is the same in Boulder and Denver: book during Late fall and winter for about 5–15% in savings. Spring and summer peak is the priciest stretch in both cities, mostly due to emergency replacements.
Should I choose where to live based on wood and fiberglass window replacement cost?
That would be a stretch. $1,450 is a one-time difference, not an ongoing one, and off-season buying plus apples-to-apples bids in Denver can close a good chunk of it. What matters more long-term is energy costs, climate and the condition of the home.
Compare wood and fiberglass window replacement in other cities
Updated June 2026 · By Serhat Özçelik