Windows · St. Johns, FL
How much does wood and fiberglass window replacement cost in St. Johns, FL? (2026)
In St. Johns, wood and fiberglass window replacement runs $9,800–$24,350, with most paying around $17,100 — about 2% below the national average. Whole-home window replacement with premium wood or fiberglass windows — higher cost, better looks and longevity.
Updated June 2026 · Localized estimate, not a quote
Most homeowners pay around $17,100
- Typical cost
- $17,100
- Labor vs US
- −2%
- Climate
- Hot
- Local permit
- $125
Refine your estimate
Tune it to your home to narrow the wood and fiberglass window replacement range.
Key takeaways for St. Johns
- A wood and fiberglass window replacement in St. Johns typically runs $9,800–$24,350, with most homeowners paying about $17,100 — about 2% below the national average.
- Local labor in St. Johns is −2% relative to the national average, which is what pushes this estimate away from the countrywide number.
- Budget about $125 for the local Windows permit; it's already included above.
- Expect 30–50 years of service, so planning a replacement beats a full-price emergency call.
- Cheapest time to buy: Late fall and winter — roughly 5–15% off peak-season pricing.
- The estimate above is before incentives; federal 25C/25D credits and utility rebates below can reduce what you actually pay.
What goes into the price in St. Johns
A typical St. Johns wood and fiberglass window replacement of $17,100 breaks down roughly like this — materials priced near the national level, labor set by local rates.
| Line item | St. Johns 2026 range |
|---|---|
| Materials & equipmentEquipment and supplies, which price out close to the national baseline. | $4,350 – $10,900 |
| Labor & installationInstall crew, removal and startup — the part local rates move most. | $5,325 – $13,325 |
| Permit & feesWindows permit cost, adjusted to this city's rate. | $125 |
| Total installed cost | $9,800 – $24,350 |
Split from the St. Johns estimate using a 55% local-labor share; line items sum to the total.
Why wood and fiberglass window replacement costs what it does in St. Johns
- Labor in St. Johns runs about 2% below the national average (based on price levels for the Jacksonville metro area), which lowers the installed price.
- The hot climate in St. Johns adds roughly 2% to typical wood and fiberglass window replacement pricing versus a neutral climate.
- St. Johns's Windows permit runs roughly $125, which is already part of the number above.
Wood & Fiberglass Window Replacement cost by number of windows in St. Johns
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.
| number of windows | St. Johns 2026 range |
|---|---|
| 5 windows | $4,500 – $10,800 |
| 10 windows | $8,850 – $19,500 |
| 15 windows | $13,200 – $27,250 |
| 20 windows | $17,550 – $35,000 |
| 25+ windows (whole home) | $21,450 – $43,700 |
National size ranges localized to St. Johns labor and climate.
Wood & Fiberglass Window Replacement cost by type in St. Johns
| Fiberglass | $9,800 – $21,450 |
| Composite | $10,800 – $22,400 |
| Aluminum-clad wood | $12,700 – $26,300 |
| Solid wood | $13,700 – $29,200 |
Adjusted to St. Johns from national type-level ranges.
Wood & Fiberglass Window Replacement cost by efficiency in St. Johns
Frame material sets the price and the look. Fiberglass is durable and low-maintenance; wood (often clad in aluminum outside) offers the richest appearance but costs more. The glass package adds on top. Prices are per window installed.
| Fiberglass frame (double-pane low-E)Strong, stable, very low maintenance | $700 – $1,500 |
| Wood frame / aluminum-clad woodPremium look; needs periodic finishing | $1,100 – $2,250 |
| Triple-pane premium (wood or fiberglass)Top efficiency and sound control | $1,500 – $2,850 |
Labor vs. materials in St. Johns
Install crew, removal, permit & startup — the part St. Johns rates move most.
Equipment & materials — priced closer to the national level.
Split based on a typical $17,100 St. Johns project; your mix varies with scope.
Skilled installers in the Jacksonville area earn about $28.3/hr (9% below the US average, per BLS metro wage data) — the local wage is what moves the labor half of your wood and fiberglass window replacement cost.
How we estimate it
| National range | $10,000 – $25,000 |
| St. Johns labor adjustment | ×0.95 |
| hot climate factor | ×1.02 |
| Local permit | +$125 |
| St. Johns estimate | $9,800 – $24,350 |
Promo prices vs. the real cost
Window companies market by the unit; real jobs price by the whole scope. Watch for this gap:
- "From $189/window" teaserinstall, trim & disposal usually extra
- "Buy 2, get 2" / BOGO dealsdiscount is off an inflated list price
- Financing offers$0 down · 0% APR, 12–60 mo
- Free in-home estimate$0 — it's a sales visit
Additional wood and fiberglass window replacement costs to budget for
These aren't always in the headline price. Whether you'll pay them depends on your home's condition and setup.
| Old window removal & disposalPer window; usually bundled into the quote | $30 – $75 |
| Full-frame (vs. insert/pocket) replacementPer window; standard for wood to flash properly | $150 – $450 |
| Rotted sill / frame repairPer opening, found after removal | $200 – $800 |
| Custom or non-standard size / shapeBay, bow, arched, or oversized units cost more | $200 – $1,000 |
| Interior/exterior trim, casing & stainingPer window; wood often gets a stained finish | $100 – $400 |
Typical national add-on ranges; confirm locally during your quote.
What's included
- Interior and exterior trim
- Premium wood or fiberglass windows
- Installation, flashing and sealing
- Old window removal
What affects the cost
- Material (fiberglass vs solid wood vs clad)
- Number of windows
- Custom sizing and shapes
- Historic or architectural matching
Ways to save on wood and fiberglass window replacement in St. Johns
- Use premium only where visible, vinyl elsewhere
- Check efficiency rebates
- Fiberglass costs less than wood with similar looks
- Bundle the whole house in one job
How long does wood and fiberglass window replacement last in St. Johns?
Fiberglass lasts 30–50+ years; well-maintained wood can match it, but neglected wood rots far sooner.
Fiberglass is nearly maintenance-free. Wood (and the exterior of clad units) needs periodic repainting or re-staining and seal checks.
Signs you need wood and fiberglass window replacement in St. Johns
- Windows stick, swell, or are hard to open and close
- Fog or condensation appears between the panes (the seal has failed)
- Wood frames show rot, soft spots, peeling paint, or water staining
- You feel drafts near the window when it's shut
- They're single-pane originals and energy bills are high
- Visible warping, cracking, or daylight around the sash
- Outside noise comes through easily
Repair or replace in St. Johns?
Repair if…
- The wood frame is structurally sound and just needs refinishing or minor rot repair
- Only the seal, weatherstripping, or hardware has failed
- It's a historic or character window worth restoring
- The unit is under warranty
Replace if…
- Condensation is sealed between the panes (the IGU seal is gone)
- Rot has spread into the structural frame or sill
- They're single-pane and you want major energy savings
- Several windows are failing — bulk replacement lowers per-window cost
Climate-zone spec
What window rating you need in St. Johns, FL
St. Johns, FL sits in a hot climate — the Southern ENERGY STAR window zone. To qualify for ENERGY STAR (v7.0), replacement windows here should meet:
In hot climates, the solar heat gain coefficient (SHGC) is the number that matters — a low SHGC blocks summer heat and cuts cooling bills far more than a rock-bottom U-factor.
Thresholds from ENERGY STAR Residential Windows v7.0. Costadia groups cities into cold / mixed / hot bands — for your exact county's zone, use the ENERGY STAR Climate Zone Finder. Source.
Rebates & incentives
The federal window tax credit is gone for 2026, but ENERGY STAR windows can still earn utility rebates in some areas — and the real long-run savings come from lower heating and cooling bills.
- The federal 25C tax credit (up to $600/yr for ENERGY STAR Most Efficient windows) ended December 31, 2025 under the One Big Beautiful Bill Act — not available for 2026.
- Some utilities still rebate high-efficiency windows — real examples include Mass Save (~$75/window on single-pane replacements) and Puget Sound Energy (up to $100/window, more for income-qualified, through 2026).
- There is no federal HEAR rebate for windows (that program targets electrification equipment like heat pumps), so utility and state programs are the path — check the DSIRE database.
- The durable savings are on your energy bills: right-rated windows for your climate zone cut heating/cooling costs every year (see the climate-zone spec above).
Verified July 2026. Program budgets and windows change fast — confirm current amounts and eligibility with your utility and the DSIRE database. Costadia does not administer these programs.
Rebates & tax credits
The federal 25C window tax credit (30%, up to $600) ended December 31, 2025 and no longer applies to 2026 installs. ENERGY STAR Most Efficient wood or fiberglass windows still pay back through lower energy bills, and many utilities and states offer their own rebates — check the DSIRE database.
Cheapest time for wood and fiberglass window replacement in St. Johns
Window installers slow down in cold months and manufacturers run their deepest promotions in fall and winter, so off-season buyers catch both labor discounts and rebates.
Why wood and fiberglass window replacement quotes vary — and how to compare them fairly
Two bids for the “same” job can differ by thousands. Usually it's scope, not greed — here's what moves the number and how to get an apples-to-apples comparison.
Why a quote looks high (or low)
- Frame material — vinyl, wood, fiberglass — is a big driver.
- Glass package (double vs. triple pane, low-E, gas fill) swings the price.
- Trim, disposal and exterior flashing/caulking may be excluded.
Get an apples-to-apples bid
- Check warranties on frame, glass seal and labor separately.
- Confirm disposal, trim and flashing are included.
- Specify full-frame vs. insert for every bid.
- Compare frame material on equal terms.
Questions to ask St. Johns Windows pros
Comparing quotes is only fair when they cover the same scope. Ask every bidder these before you sign.
- 1Is this a full-frame replacement or an insert (pocket) install?
- 2What's the glass package — double vs. triple pane, low-E coating, gas fill?
- 3Are disposal, trim, and exterior caulking/flashing included?
- 4Are the windows ENERGY STAR rated for my climate zone?
- 5What's the warranty on the frame, glass seal, and the installation labor?
Wood & Fiberglass Window Replacement in St. Johns
How much does wood and fiberglass window replacement cost in St. Johns, FL?
wood and fiberglass window replacement in St. Johns runs $9,800–$24,350 as of 2026, with $17,100 the figure most homeowners actually land on. That's not a national average — it's adjusted for St. Johns labor rates, hot-climate factors and permit fees.
Is wood and fiberglass window replacement more expensive in St. Johns than average?
Labor is the biggest lever here: at an index of 0.95 versus the US average, St. Johns ends up about 2% lower than the national average. — the local Windows permit, about $125, is part of that too.
Do I need a permit for wood and fiberglass window replacement in St. Johns?
A Windows permit is standard in St. Johns for this kind of work, at roughly $125. You won't need to add it on top of the estimate above — it's already there.
What affects wood and fiberglass window replacement cost the most?
Worth knowing first: whole-home window replacement with premium wood or fiberglass windows — higher cost, better looks and longevity. What moves the price most: equipment or material grade, your home's size and complexity, local labor rates, and the hot climate zone.
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 unlock rebates. Spend on the glass package before the frame upgrade.
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 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.
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.
Editorial analysis by Serhat Özçelik, reviewed by Costadia Editorial. These are our own cost perspectives, not third-party endorsements.
How we calculated this estimate
We start with 2026 national wood and fiberglass window replacement ranges compiled from contractor-pricing sources (Angi, HomeGuide, Fixr and EnergySage averages), then localize them to St. Johns using the BLS metro wage data labor index (×0.95 here), the IECC hot-climate factor (×1.02) and a typical local permit fee (≈$125). Federal incentive details reference the IRS Inflation Reduction Act (25C/25D) and DSIRE.
This is a planning estimate, not a quote.Actual prices vary with your home's condition, equipment grade and contractor — always confirm with licensed local pros before budgeting.
References & data sources
Our St. Johns wood and fiberglass window replacement estimate is built from these primary, mostly government sources — not a single aggregator.
- Occupational Employment & Wage Statistics (metro wages) — U.S. Bureau of Labor Statistics.Metro-level trade wages behind each city's labor index.
- Regional Price Parities (state & metro) — U.S. Bureau of Economic Analysis.Regional price levels used where metro wage data is unavailable.
- IECC Climate Zones — U.S. DOE — Building Energy Codes Program.Climate-zone factors applied to weather-sensitive projects.
- Home Energy Tax Credits (25C / 25D) — Internal Revenue Service.Federal rebate and tax-credit figures for eligible upgrades.
- Database of State Incentives for Renewables & Efficiency — DSIRE — NC State University.State and utility incentive programs by ZIP code.
Wood and fiberglass window replacement alternatives in St. Johns
Homeowners in St. Johns often pair this with
A wood and fiberglass window replacement rarely happens in isolation — these projects commonly come up alongside it.
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