Wood & Fiberglass Window Replacement cost: Chicago vs Mount Prospect (2026)
There's essentially no price gap here: wood and fiberglass window replacement runs close to $20,600 in both Chicago and Mount Prospect in 2026.
Chicago IL
Typically around $20,600
Mount Prospect IL
Typically around $20,600
Chicago vs Mount Prospect: full breakdown
| Factor | Chicago | Mount Prospect |
|---|---|---|
| Typical 2026 cost | $20,600 | $20,600 |
| Estimated range | $11,800–$29,350 | $11,800–$29,350 |
| Labor index (vs US) | ×1.12 | ×1.12 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.04 | ×1.04 |
| Local permit | $125 | $125 |
| Labor share | $11,350 | $11,350 |
| Materials/equipment | $9,250 | $9,250 |
These are 2026 planning figures for wood and fiberglass window replacement, localized to each city — not formal quotes.
A wash — choose on quality, not city
Neither metro has a cost edge on wood and fiberglass window replacement — spend your decision-making energy on the contractor, not the location.
Wood and fiberglass window replacement by type: Chicago vs Mount Prospect
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 | Chicago | Mount Prospect |
|---|---|---|
| Fiberglass | $11,800–$25,850 | $11,800–$25,850 |
| Composite | $13,000–$27,000 | $13,000–$27,000 |
| Aluminum-clad wood | $15,300–$31,700 | $15,300–$31,700 |
| Solid wood | $16,500–$35,200 | $16,500–$35,200 |
Wood and fiberglass window replacement numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
Wood and fiberglass window replacement by number of windows: Chicago vs Mount Prospect
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 | Chicago | Mount Prospect |
|---|---|---|
| 5 windows | $5,400–$13,000 | $5,400–$13,000 |
| 10 windows | $10,650–$23,500 | $10,650–$23,500 |
| 15 windows | $15,900–$32,850 | $15,900–$32,850 |
| 20 windows | $21,150–$42,200 | $21,150–$42,200 |
| 25+ windows (whole home) | $25,850–$52,700 | $25,850–$52,700 |
Treat these as 2026 localized estimates for wood and fiberglass window replacement, not quotes from a contractor.
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.
Chicago-Naperville-Elgin metro · about 23% above the US average installer wage.
Chicago-Naperville-Elgin metro · about 23% 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?
A window quote bundles three separate purchases into one number: the frame, the glass, and the labor to set it right. Knowing which of the three actually moves comfort and bills is what keeps the money from landing in the wrong place.
The value case
For a whole-home replacement on a fixed budget, vinyl frames with double-pane low-E glass capture nearly all the comfort and efficiency gains at the lowest entry point. Stepping up to fiberglass or triple glazing buys diminishing returns most homeowners never actually notice.
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.
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.
Let your climate dictate the glass package, keep vinyl as the frame unless something specific rules it out, and hold the line on installation quality — that last one is the corner that comes back as drafts and leaks.
Chicago vs Mount Prospect
Is wood and fiberglass window replacement cheaper in Chicago or Mount Prospect?
wood and fiberglass window replacement costs about the same in both — roughly $20,600 in each city.
Why does wood and fiberglass window replacement cost more in Mount Prospect than Chicago?
The main driver is local labor rates: Mount Prospect's labor index is 1.12 versus 1.12 in Chicago. Climate zone (cold vs cold) also shift the total.
How much is wood and fiberglass window replacement in Chicago, IL?
wood and fiberglass window replacement in Chicago runs $11,800–$29,350 as of 2026 — most jobs land near $20,600.
Do windows pros really charge more in one city?
Real wage data backs this up — skilled installers earn roughly $38.1/hr in Chicago-Naperville-Elgin compared with $38.1/hr in Chicago-Naperville-Elgin (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?
No, the seasonal pattern is the same in Chicago and Mount Prospect: 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?
There's no cost argument here between Chicago and Mount Prospect — they're a wash. Focus on contractor reputation, project scope, equipment tier and timing.
Compare wood and fiberglass window replacement in other cities
Updated June 2026 · By Serhat Özçelik