Wood & Fiberglass Window Replacement cost: Brentwood vs Chattanooga (2026)
The two metros aren't quite in sync on wood and fiberglass window replacement: Brentwood sits 1% above Chattanooga, or roughly $17,100 versus $16,950 — about $150 apart.
Brentwood TN
Typically around $17,100
Chattanooga TN
Lower costTypically around $16,950
Brentwood vs Chattanooga: full breakdown
| Factor | Brentwood | Chattanooga |
|---|---|---|
| Typical 2026 cost | $17,100 | $16,950 |
| Estimated range | $9,800–$24,350 | $9,700–$24,150 |
| Labor index (vs US) | ×0.97 | ×0.96 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | $125 | $100 |
| Labor share | $9,400 | $9,300 |
| Materials/equipment | $7,700 | $7,650 |
Wood and fiberglass window replacement numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
Is the price difference a dealbreaker?
1% 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: Brentwood vs Chattanooga
Below, each wood and fiberglass window replacement option is priced independently for both cities, with identical local labor, climate and permit logic applied — so the comparison holds up.
| Type | Brentwood | Chattanooga |
|---|---|---|
| Fiberglass | $9,800–$21,450 | $9,700–$21,250 |
| Composite | $10,800–$22,400 | $10,700–$22,200 |
| Aluminum-clad wood | $12,700–$26,300 | $12,600–$26,050 |
| Solid wood | $13,700–$29,200 | $13,550–$28,950 |
These are 2026 planning figures for wood and fiberglass window replacement, localized to each city — not formal quotes.
Wood and fiberglass window replacement by number of windows: Brentwood vs Chattanooga
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 | Brentwood | Chattanooga |
|---|---|---|
| 5 windows | $4,500–$10,800 | $4,450–$10,700 |
| 10 windows | $8,850–$19,500 | $8,750–$19,350 |
| 15 windows | $13,200–$27,250 | $13,100–$27,000 |
| 20 windows | $17,550–$35,000 | $17,400–$34,700 |
| 25+ windows (whole home) | $21,450–$43,750 | $21,250–$43,350 |
Treat these as 2026 localized estimates for wood and fiberglass window replacement, not quotes from a contractor.
What windows pros earn in each metro
Roughly 55% of what you pay for wood and fiberglass window replacement is labor, which is why local wages explain most of the price gap. The numbers below are actual metro wages for skilled installers, sourced from BLS OEWS — not guesses.
Nashville-Davidson--Murfreesboro--Franklin metro · about 6% below the US average installer wage.
No BLS metro wage series for Chattanooga; 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
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?
A window budget rests on three choices — frame material, glass package and how it's installed. Our editors weigh in on where the money is well spent.
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 qualify for rebates. Spend on the glass package before the frame upgrade.
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 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.
Frame material is the safe place to economize; the glass package and the install are not. Pick glazing for the weather you actually live with, stay with vinyl unless there's a real reason to move up, and don't buy your way under budget by accepting a rushed install.
Brentwood vs Chattanooga
Is wood and fiberglass window replacement cheaper in Brentwood or Chattanooga?
Yes — Brentwood costs more. Expect around $17,100 for wood and fiberglass window replacement there against $16,950 in Chattanooga, about $150 (1%) apart in 2026.
Why does wood and fiberglass window replacement cost more in Brentwood than Chattanooga?
The main driver is local labor rates: Brentwood's labor index is 0.97 versus 0.96 in Chattanooga. Climate zone (mixed vs mixed) and permit fees also shift the total.
How much is wood and fiberglass window replacement in Brentwood, TN?
In Brentwood, wood and fiberglass window replacement typically runs $9,800–$24,350 in 2026, with most homeowners paying around $17,100.
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 Brentwood and Chattanooga (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?
Rarely. The $150 difference is real but one-time, and you can often close most of it in Brentwood by buying in the off-season and getting tighter, apples-to-apples bids. Ongoing factors — energy prices, climate and home condition — matter more over the life of the system.
Compare wood and fiberglass window replacement in other cities
Updated June 2026 · By Serhat Özçelik