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How Much Does Fiberglass Sliding Window Cost in Seattle, Washington?

Replace one standard-size fiberglass horizontal sliding window, installed.

Fiberglass Sliding Window in Seattle, Washington typically costs $973 to $1,947 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.

Fiberglass Sliding Window in Seattle, Washington

$973 – $1,947

each

Prices in Seattle are 19.0% higher than the national average for fiberglass sliding window.

National average: $850 – $1,700 each

What you get at each price level

  • Basic

    $827 – $1,655 each

    White fiberglass horizontal slider with low-E double-pane glass, cam lock and screen on the operating sash, interior trim

  • Standard

    $973 – $1,947 each

    Fiberglass horizontal slider with low-E argon glass and warm-edge spacers, smoother rolling sash, tan frame, sealed

  • Premium

    $1,217 – $2,433 each

    Fiberglass horizontal slider with dark exterior color, low-E argon glass with grilles between the glass, rolling sash

Cost Breakdown in Seattle

ComponentCategoryPrice RangeUnit
Materialsmaterial$397 – $796each
Laborlabor$399 – $797each
Supplies & Othersupplies$106 – $212each
Equipment & Disposalequipment$71 – $141each
Prices adjusted for Seattle local market conditions.

Cost Factors in Seattle, Washington

What Affects Pricing

  • Materials ($382.00-$765.00 per unit)
  • Labor ($298.00-$595.00 per unit)
  • Supplies & Other ($102.00-$204.00 per unit)
  • Equipment & Disposal ($68.00-$136.00 per unit)

Local Price Adjustments

Material costs4.0% above avg
Labor costs34.0% above avg

Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.

Frequently Asked Questions

References

Get Free Estimates in Seattle

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