Wood & Fiberglass Window Replacement cost: Franklin vs Knoxville (2026)
The two metros aren't quite in sync on wood and fiberglass window replacement: Franklin sits 2% above Knoxville, or roughly $17,100 versus $16,750 — about $350 apart.
Franklin TN
Typically around $17,100
Knoxville TN
Lower costTypically around $16,750
Franklin vs Knoxville: full breakdown
| Factor | Franklin | Knoxville |
|---|---|---|
| Typical 2026 cost | $17,100 | $16,750 |
| Estimated range | $9,800–$24,350 | $9,600–$23,850 |
| Labor index (vs US) | ×0.97 | ×0.95 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | $125 | $100 |
| Labor share | $9,400 | $9,200 |
| Materials/equipment | $7,700 | $7,550 |
All figures are 2026 localized planning estimates for wood and fiberglass window replacement — get an actual quote before you commit.
Is the price difference a dealbreaker?
2% is within noise for wood and fiberglass window replacement — contractor selection and timing move the price more than which of these two metros you're in.
Wood and fiberglass window replacement by type: Franklin vs Knoxville
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 | Franklin | Knoxville |
|---|---|---|
| Fiberglass | $9,800–$21,450 | $9,600–$21,000 |
| Composite | $10,800–$22,400 | $10,550–$21,950 |
| Aluminum-clad wood | $12,700–$26,300 | $12,450–$25,750 |
| Solid wood | $13,700–$29,200 | $13,400–$28,600 |
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: Franklin vs Knoxville
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 | Franklin | Knoxville |
|---|---|---|
| 5 windows | $4,500–$10,800 | $4,400–$10,550 |
| 10 windows | $8,850–$19,500 | $8,650–$19,100 |
| 15 windows | $13,200–$27,250 | $12,950–$26,700 |
| 20 windows | $17,550–$35,000 | $17,200–$34,300 |
| 25+ windows (whole home) | $21,450–$43,750 | $21,000–$42,850 |
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
About 55% of a wood and fiberglass window replacement bill goes to labor, so wage differences between these two metros matter more than almost anything else. These are real, government-sourced (BLS OEWS) installer wages, not estimates.
Nashville-Davidson--Murfreesboro--Franklin metro · about 6% below the US average installer wage.
No BLS metro wage series for Knoxville; we use Tennessee regional price parity instead.
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 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 value case
Double-pane, low-E vinyl is the workhorse spec for a reason: it handles the vast majority of drafts and heat loss without the price jump of premium materials. When you're replacing every window at once and watching the total, it's the default that leaves the least on the table.
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.
Windows reward homeowners who spend deliberately: glass tuned to the climate, a vinyl frame by default, and an installer who won't skip flashing. Trim the frame line before you touch either of the other two.
Franklin vs Knoxville
Is wood and fiberglass window replacement cheaper in Franklin or Knoxville?
Knoxville wins on price: wood and fiberglass window replacement runs about $16,750 there versus $17,100 in Franklin, a gap of roughly $350 (2%) as of 2026.
Why does wood and fiberglass window replacement cost more in Franklin than Knoxville?
The main driver is local labor rates: Franklin's labor index is 0.97 versus 0.95 in Knoxville. Climate zone (mixed vs mixed) and permit fees also shift the total.
How much is wood and fiberglass window replacement in Franklin, TN?
wood and fiberglass window replacement in Franklin runs $9,800–$24,350 as of 2026 — most jobs land near $17,100.
When is the cheapest time to buy wood and fiberglass window replacement — and does it differ by city?
The best window is the same in both Franklin and Knoxville: Late fall and winter, when demand drops and installers discount to keep crews busy — typically 5–15% off peak pricing. The most expensive time anywhere is an emergency replacement during spring and summer peak.
Should I choose where to live based on wood and fiberglass window replacement cost?
That would be a stretch. $350 is a one-time difference, not an ongoing one, and off-season buying plus apples-to-apples bids in Franklin 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