Windows · Sammamish, WA
How much does wood and fiberglass window replacement cost in Sammamish, WA? (2026)
In Sammamish, wood and fiberglass window replacement runs $11,900–$29,500, with most paying around $20,700 — about 18% above 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 $20,700
- Typical cost
- $20,700
- Labor vs US
- +14%
- Climate
- Mixed
- Local permit
- $125
Refine your estimate
Tune it to your home to narrow the wood and fiberglass window replacement range.
Key takeaways for Sammamish
- Sammamish homeowners typically pay $11,900–$29,500 for wood and fiberglass window replacement, with $20,700 the usual landing spot — about 18% above the national average.
- Local labor in Sammamish is +14% relative to the national average, which is what pushes this estimate away from the countrywide number.
- Permit costs are baked in: Sammamish charges about $125 for the Windows permit.
- Service life runs 30–50 years on average; replacing on your schedule beats replacing on an emergency one.
- Roughly 5–15% comes off when you book in Late fall and winter instead of peak season.
- 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 Sammamish
A typical Sammamish wood and fiberglass window replacement of $20,700 breaks down roughly like this — materials priced near the national level, labor set by local rates.
| Line item | Sammamish 2026 range |
|---|---|
| Materials & equipmentThe equipment and materials themselves — this part barely shifts by location. | $5,300 – $13,200 |
| Labor & installationRemoval, install and startup labor — the line most affected by where you live. | $6,475 – $16,175 |
| Permit & feesWindows permit cost, adjusted to this city's rate. | $125 |
| Total installed cost | $11,900 – $29,500 |
Split from the Sammamish estimate using a 55% local-labor share; line items sum to the total.
Why wood and fiberglass window replacement costs what it does in Sammamish
- Sammamish's labor rates sit about 14% higher than the national average (based on price levels for the Seattle-Tacoma-Bellevue metro area), pushing the price up.
- A Windows permit in Sammamish costs around $125, included above.
Wood & Fiberglass Window Replacement cost by number of windows in Sammamish
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 | Sammamish 2026 range |
|---|---|
| 5 windows | $5,400 – $13,050 |
| 10 windows | $10,700 – $23,650 |
| 15 windows | $16,000 – $33,050 |
| 20 windows | $21,300 – $42,450 |
| 25+ windows (whole home) | $26,000 – $53,000 |
National size ranges localized to Sammamish labor and climate.
Wood & Fiberglass Window Replacement cost by type in Sammamish
| Fiberglass | $11,950 – $26,100 |
| Composite | $13,100 – $27,250 |
| Aluminum-clad wood | $15,450 – $32,000 |
| Solid wood | $16,650 – $35,550 |
Adjusted to Sammamish from national type-level ranges.
Wood & Fiberglass Window Replacement cost by efficiency in Sammamish
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 | $850 – $1,750 |
| Wood frame / aluminum-clad woodPremium look; needs periodic finishing | $1,300 – $2,700 |
| Triple-pane premium (wood or fiberglass)Top efficiency and sound control | $1,750 – $3,400 |
Labor vs. materials in Sammamish
Install crew, removal, permit & startup — the part Sammamish rates move most.
Equipment & materials — priced closer to the national level.
Split based on a typical $20,700 Sammamish project; your mix varies with scope.
Skilled installers in the Seattle-Tacoma-Bellevue area earn about $41.1/hr (32% above 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 |
| Sammamish labor adjustment | ×1.18 |
| mixed climate factor | ×1 |
| Local permit | +$125 |
| Sammamish estimate | $11,900 – $29,500 |
Promo prices vs. the real cost
Advertised window pricing quotes the unit and skips the labor that makes it watertight. Measure the ad against the full installed number above, not the sticker on the glass:
- Free in-home estimate$0 — it's a sales visit
- "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
Additional wood and fiberglass window replacement costs to budget for
Treat them as possibilities, not certainties — the ones that reach your quote follow your property's age 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
- Historic or architectural matching
- Material (fiberglass vs solid wood vs clad)
- Custom sizing and shapes
- Number of windows
Ways to save on wood and fiberglass window replacement in Sammamish
- Check efficiency rebates
- Fiberglass costs less than wood with similar looks
- Use premium only where visible, vinyl elsewhere
- Bundle the whole house in one job
How long does wood and fiberglass window replacement last in Sammamish?
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 Sammamish
- 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 Sammamish?
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 Sammamish, WA
Sammamish, WA sits in a mixed climate — the North-Central / South-Central ENERGY STAR window zone. To qualify for ENERGY STAR (v7.0), replacement windows here should meet:
Mixed climates need balance: a low U-factor for winter plus a controlled SHGC so summer sun doesn't overheat the home. Requirements tighten as you move south.
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 Sammamish
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.
Why wood and fiberglass window replacement quotes vary — and how to compare them fairly
A wide spread between bids rarely means someone is overcharging; it usually means they priced different work. Below is what moves the number and how to line the quotes up.
Why a quote looks high (or low)
- Glass package (double vs. triple pane, low-E, gas fill) swings the price.
- Frame material — vinyl, wood, fiberglass — is a big driver.
- Full-frame replacement costs more than an insert (pocket) install — make sure bids match.
Get an apples-to-apples bid
- Confirm disposal, trim and flashing are included.
- Specify full-frame vs. insert for every bid.
- Compare frame material on equal terms.
- Match the glass package and ENERGY STAR rating across quotes.
Questions to ask Sammamish Windows pros
The only honest way to compare is to hold every quote to one checklist. Start with these.
- 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 Sammamish
How much does wood and fiberglass window replacement cost in Sammamish, WA?
For Sammamish homeowners, wood and fiberglass window replacement typically falls between $11,900 and $29,500 in 2026, averaging close to $20,700. Why that specific number? It reflects Sammamish labor rates, mixed-climate demands and permit fees rather than a flat national figure.
Is wood and fiberglass window replacement more expensive in Sammamish than average?
Why the gap? Sammamish prices about 18% higher than the national average, and local labor — indexed at 1.18 against the US average — does most of the work. — the local Windows permit, about $125, is part of that too.
Do I need a permit for wood and fiberglass window replacement in Sammamish?
Most Sammamish jurisdictions require a Windows permit for this work. Budget roughly $125 for the permit; it is already included in the estimate above.
What affects wood and fiberglass window replacement cost the most?
In plain terms, whole-home window replacement with premium wood or fiberglass windows — higher cost, better looks and longevity. The biggest drivers are equipment/material grade, the size and complexity of your home, local labor rates, and your climate zone (mixed).
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
Installation is where a window quote quietly makes or breaks itself. A pocket insert dropped into a deteriorating opening leaks no matter how good the unit is, while a full-frame replacement with correct flashing holds up. Choose the method that fits what's actually behind the trim, not the one that shaves the estimate.
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.
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.
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 Sammamish using the BLS metro wage data labor index (×1.18 here), the IECC mixed-climate factor (×1) 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 Sammamish 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 Sammamish
Homeowners in Sammamish often pair this with
A wood and fiberglass window replacement rarely happens in isolation — these projects commonly come up alongside it.
Other projects in Sammamish
Browse local 2026 costs for every home project in Sammamish, WA.